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- 1 participants
- 3302 discussions
09 May '06
Dear Colleagues
The RIPE NCC Training Services Department invites you to register for one
of our upcoming Routing Registry Training Courses:
Date: Friday 4 August 2006
Time: 0900 - 1700
Location: Warsaw, Poland
And
Date: Friday 1 September 2006
Time: 0900 - 1700
Location: Reykjavik, Iceland
The main objective of the "Routing Registry Training Course" is to
familiarise the LIRs with the features of the Routing Registry, while
introducing the relevant tools and services of the RIPE NCC.
The course also offers practical exercises.
OVERVIEW OF TOPICS COVERED IN THE COURSE:
- Routing Registry as a part of the RIPE Whois Database and the
Internet Routing Registry (IRR)
- Specifying routing policies using (RPSL)
Routing Policy Specification Language and the RtConfig tool
- IRRToolSet
- Routing Information Service (RIS)
- Routing Registry Consistency Check Project
Please note that this is an advanced course. It will:
- NOT teach the basics of routing
- NOT teach the basics of RIPE Database operations
- NOT describe how to receive Internet resources from the RIPE NCC
- NOT describe how to operate a Local Internet Registry (LIR)
The target audience of the course are technical staff of LIRs: e.g.
network operators, engineers etc. This course is not intended for
administrative or management staff (e.g. Hostmasters) .
It is assumed that all attendees will be familiar with
Border Gateway Protocol routing and with the RIPE Database
(i.e. creating/modifying objects).
This course is based on interactive exercises in a local network set-up.
Please bring your laptops equipped with the following:
- A working Ethernet card,
- Three meters of Ethernet cable,
- A secure connection client,
- A web browser.
Please be prepared to share your laptop (or at least allow another
attendee to "look over your shoulder") if necessary.
The course is free of charge. We provide lunch and printed training materials.
We do not cover any of your travel expenses or accommodation.
We give all of our training courses in English.
You can find more information about the course at:
http://www.ripe.net/training/rr/
How to register:
---------------------
You can register up to two people from your LIR for each course.
(If there are places left nearer the time of the course, you can register more people).
To register for this course, you can either use the LIR Portal at:
https://lirportal.ripe.net/lirportal/training/course-list.html
Or the online registration form on our website:
http://www.ripe.net/cgi-bin/trainingform.pl.cgi
If you have any questions, send an e-mail to <training(a)ripe.net>.
Kind regards,
Rumy Kanis
Training Services Manager
RIPE NCC
1
0
08 May '06
Dear Colleagues,
Please find attached the draft of a document obsoleting RIPE-229 "RIPE
Routing-WG Recommendations for Coordinated Route-flap Damping
Parameters".
While we will discuss this document at the WG meeting on Thursday, we'd
welcome and appreciate feedback from the mailing list.
Thanks!
Philip Smith & Christian Panigl
--
RIPE Routing-WG Recommendations on Route-flap Damping
Philip Smith
Christian Panigl
Document ID: TBA
Date Published: TBA
Obsoletes: ripe-229, ripe-210, ripe-178
Abstract
This document discusses Route Flap Damping and recommends acceptable
practices for ISPs who are considering deploying Route Flap Damping.
Table of Contents
1. Introduction
1.1 Background
1.2 Coordination of Flap Damping Parameters
2. Current Status of Route Flap Damping
2.1 Impeded Convergence
2.2 Updates transiting the network
3. Solutions
4. Recommendation
5. Conclusion
6. Acknowledgements
7. References
8. Authors
1. Introduction
Route Flap Damping (RFD) [1] is a mechanism for BGP speaking routers
intended to improve the overall stability of the Internet routing
table and reduce the load on the CPUs of the core routers.
Unfortunately, due to the dynamics of the protocol, common simple
configurations can do more harm than good, see [3,4].
1.1 Background
In the early 1990s the accelerating growth in the number of prefixes
being announced to the Internet (often due to inadequate
prefix-aggregation), the denser meshing through multiple inter-provider
paths, and increased instabilities started to cause significant impact
on the performance and efficiency of the Internet backbone routers.
Every time a routing prefix became unreachable because of a single
line-flap, the withdrawal was advertised to the whole core Internet
and handled by every single router that carried the full Internet
routing table.
It was soon realized that the increasing routing churn created
significant processing load on routing engines, sometimes
sufficiently high load to cause router crashes.
To overcome this situation RFD was developed in 1993 and has since been
integrated into most router BGP software implementations. RFD is
described in detail in RFC 2439. RFD is now used in many service provider
networks in the Internet.
1.2 Coordination of flap damping parameters
When RFD was first implemented in commercial routers, vendor
implementations had different default values and different
characteristics. As inconsistency would result in different rates
of flap damping, and therefor introduce inconsistent path selection
and thus behavior that was very hard to diagnose, the ISP community
introduced a consistent set of recommendations for flap damping
parameters, so that ISPs deploying RFD would treat flapping
prefixes in the same way.
This call for consistency resulted in the RIPE Routing Working Group
producing first ripe-178, then ripe-210, and finally the ripe-229
documents [2], following consensus of the Routing Working Group.
The parameters documented in ripe-229 were considered, at time of
publication in 2001, the best current practice.
2. Current Status of Route Flap Damping
Research in the years following the introduction of RFD into BGP
implementations, and the publication of the RIPE Routing Working Group
recommendations, has demonstrated that there are real and signficant
problems with RFD as deployed on the Internet today.
2.1 Impeded Convergence
Perhaps the best known work highlighting major problems with RFD is that
by Zhuoquing Mao and colleagues, presented at Sigcomm in 2002. Following
presentations by Randy Bush and colleagues explain the research work more
accessibly.
The major issue is that if one path is withdrawn, all BGP speakers will
use best path selection to pick the next best path, and advertise this
best path to all their neighbours. These neighbours will see a change in
path; a change in path is a change in attribute, so the prefix as seen
on a neighbouring router will attract a flap penalty - even though
that path is perfectly valid and there has been no disappearance of
the prefix from the routing table [5].
And this path "hunting" goes on throughout the Internet - a simple
prefix withdrawal can result in the appearance of a major flap event a
few AS hops away in the Internet, with the result that vendor default
and even the RIPE-229 recommended flap damping parameters will mark the
prefix to be suppressed. While the operator can see this is an error,
the routers are simply reacting to the circumstances presented to
them.
2.2 Updates transiting the network
Problems are not just caused by path "hunting". Each implementation
of BGP either has differing values of the Minimum Route Advertisement
Interval (MRAI) Timer (the amount of time a router waits before passing
on a route update) or does not implement MRAI at all in favour of
the vendor's own throttling algorithm.
Some implementations pass on the update without waiting at all, others
wait for 30 seconds, etc. These differences mean that update messages
transiting different ASNs using different vendor equipment will arrive
at the target router at different times. This router will see these
different messages, and will consider each one for best path options.
This will more than likely result in a different best path offered to
its neighbours for each message update arriving.
The result of this is that a simple update message from one ASN would
be seen as a multiple route flap event a few ASN hops away - when in
fact there was no instability whatsoever. There have been actual
measurements where this resulted in a single prefix withdrawal
producing 41 BGP events a few hops away!
Not only is the MRAI timer a potential source of problems, but also
differences in CPU loadings and CPU speed will result in different
update times for prefixes announcements passing from router to router.
These differences will also contribute to the effects described above.
3. Solutions
Possible solutions to the problems summarised above have been proposed and
analysed in the work by Zhouqing Mao and colleagues.
However, despite publication in 2002, there has since then been no
desire expressed from the ISP industry for these modifications to be made
to the BGP implementations. Nor has there been any activity by the BGP
implementors to enhance their flap damping implementations to follow
those recommendations.
As the power of routers has increased, the original needs for BGP Flap
Damping is no longer a major concern for operators or router equipment
vendors as it was in the mid-1990s when route flapping consumed a
signficant percentage of the CPU of early routers. In fact, the
negative effects of RFD, as described above, have become the major
concern, the cure has become worse than the disease!
4. Recommendation
This Routing Working Group document proposes that with the current
implementations of BGP flap damping, the application of flap damping
in ISP networks is NOT recommended. The recommendations given in ripe-229
and previous documents [2] are considered obsolete henceforth.
If flap damping is implemented, the ISP operating that network will
cause side-effects to their customers and the Internet users of their
customers' content and services as described in the previous sections.
These side-effects would quite likely be worse than the impact caused
by simply not running flap damping at all.
5. Conclusion
With current vendor implementations, BGP flap damping is harmful to
the reachability of prefixes across the Internet. We would like to
encourage more work to correct some of the issues highlighted by the
work of Mao et al [3], to allow the viewing of prefix flap statistics
without applying flap damping, and permit more flexible per eBGP
neighbour damping configuration features for network operators.
6. Acknowledgements
We would like to acknowledge valuable contributions and feedback from
Randy Bush.
7. References
[1] Curtis Villamizar, Ravi Chandra, Ramesh Govindan
RFC2439: BGP Route Flap Damping (Proposed Standard)
ftp://ftp.ietf.org/rfc/rfc2439.txt
[2] RIPE Documents
ftp://ftp.ripe.net/ripe/docs/ripe-178.txt
ftp://ftp.ripe.net/ripe/docs/ripe-210.txt
ftp://ftp.ripe.net/ripe/docs/ripe-229.txt
[3] Zhouqing Mao, Ramesh Govindan, George Varghese, Randy Katz
Route Flap Damping Exacerbates Internet Routing Congerence
Sigcomm 2002
http://www.eecs.umich.edu/~zmao/Papers/sig02.pdf
[4] Randy Bush, Tim Griffin, Zhouqing Mao
Route Flap Damping: Harmful?
NANOG 26
http://www.nanog.org/mtg-0210/ppt/flap.pdf
[5] Craig Labovitz, Abha Ahuja, Abhijit Bose, Farnam Jihanian
Delayed Internet Routing Convergence
Sigcomm 2000
http://www.acm.org/sigs/sigcomm/sigcomm2000/conf/paper/sigcomm2000-5-2.pdf
7. Authors
The authors can be contacted as follows:
Philip Smith <pfs(a)cisco.com>
Christian Panigl <panigl(a)cc.univie.ac.at>
7
10
This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.
Daily listings are sent to bgp-stats(a)lists.apnic.net
If you have any comments please contact Philip Smith <pfs(a)cisco.com>.
Routing Table Report 04:00 +10GMT Sat 06 May, 2006
Analysis Summary
----------------
BGP routing table entries examined: 187455
Prefixes after maximum aggregation: 103616
Unique aggregates announced to Internet: 91884
Total ASes present in the Internet Routing Table: 22087
Origin-only ASes present in the Internet Routing Table: 19218
Origin ASes announcing only one prefix: 9153
Transit ASes present in the Internet Routing Table: 2869
Transit-only ASes present in the Internet Routing Table: 66
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 23
Max AS path prepend of ASN (34527) 16
Prefixes from unregistered ASNs in the Routing Table: 28
Unregistered ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 13
Number of addresses announced to Internet: 1531319456
Equivalent to 91 /8s, 70 /16s and 20 /24s
Percentage of available address space announced: 41.3
Percentage of allocated address space announced: 59.8
Percentage of available address space allocated: 69.1
Total number of prefixes smaller than registry allocations: 92349
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 39523
Total APNIC prefixes after maximum aggregation: 16521
Prefixes being announced from the APNIC address blocks: 37242
Unique aggregates announced from the APNIC address blocks: 18267
APNIC Region origin ASes present in the Internet Routing Table: 2543
APNIC Region origin ASes announcing only one prefix: 715
APNIC Region transit ASes present in the Internet Routing Table: 390
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 225017824
Equivalent to 13 /8s, 105 /16s and 127 /24s
Percentage of available APNIC address space announced: 70.4
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911
APNIC Address Blocks 58/7, 60/7, 121/8, 122/7, 124/7, 126/8, 202/7
210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 97040
Total ARIN prefixes after maximum aggregation: 57517
Prefixes being announced from the ARIN address blocks: 71278
Unique aggregates announced from the ARIN address blocks: 26403
ARIN Region origin ASes present in the Internet Routing Table: 10690
ARIN Region origin ASes announcing only one prefix: 4009
ARIN Region transit ASes present in the Internet Routing Table: 986
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 290145792
Equivalent to 17 /8s, 75 /16s and 70 /24s
Percentage of available ARIN address space announced: 75.2
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863
ARIN Address Blocks 24/8, 63/8, 64/5, 72/6, 76/8, 199/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 37490
Total RIPE prefixes after maximum aggregation: 25049
Prefixes being announced from the RIPE address blocks: 34506
Unique aggregates announced from the RIPE address blocks: 23143
RIPE Region origin ASes present in the Internet Routing Table: 7951
RIPE Region origin ASes announcing only one prefix: 4162
RIPE Region transit ASes present in the Internet Routing Table: 1306
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 247766464
Equivalent to 14 /8s, 196 /16s and 157 /24s
Percentage of available RIPE address space announced: 77.7
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
RIPE Address Blocks 62/8, 80/5, 88/6, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 11278
Total LACNIC prefixes after maximum aggregation: 3636
Prefixes being announced from the LACNIC address blocks: 9368
Unique aggregates announced from the LACNIC address blocks: 5436
LACNIC Region origin ASes present in the Internet Routing Table: 683
LACNIC Region origin ASes announcing only one prefix: 221
LACNIC Region transit ASes present in the Internet Routing Table: 129
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 23
Number of LACNIC addresses announced to Internet: 26824960
Equivalent to 1 /8s, 153 /16s and 81 /24s
Percentage of available LACNIC address space announced: 40.0
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 189/8, 190/8, 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 2119
Total AfriNIC prefixes after maximum aggregation: 893
Prefixes being announced from the AfriNIC address blocks: 1463
Unique aggregates announced from the AfriNIC address blocks: 953
AfriNIC Region origin ASes present in the Internet Routing Table: 154
AfriNIC Region origin ASes announcing only one prefix: 46
AfriNIC Region transit ASes present in the Internet Routing Table: 27
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 13
Number of AfriNIC addresses announced to Internet: 4066816
Equivalent to 0 /8s, 62 /16s and 14 /24s
Percentage of available AfriNIC address space announced: 12.1
AfriNIC AS Blocks 36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 1129 7088 221 CHINANET-BACKBONE
4755 913 259 71 Videsh Sanchar Nigam Ltd. Aut
9583 900 109 16 Sify Limited
4766 676 4435 303 Korea Telecom (KIX)
1221 615 1556 471 Telstra Pty Ltd
9498 566 211 67 BHARTI BT INTERNET LTD.
7545 530 124 70 TPG Internet Pty Ltd
17488 501 31 7 Hathway IP Over Cable Interne
17676 486 7029 108 Softbank BB Corp.
9443 450 110 81 Primus Telecommunications
4802 384 81 175 Wantree Development
17849 347 22 113 Telecommunications Technology
18101 338 85 24 Reliance Infocom Ltd Internet
2907 336 1749 312 SINET Japan
17557 329 28 158 Pakistan Telecom
9929 324 221 57 China Netcom Corp.
17974 312 120 29 PT TELEKOMUNIKASI INDONESIA
7474 299 211 229 SingTel Optus Pty Ltd
9800 273 410 67 CHINA UNICOM
9837 265 78 158 Powertel Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1508 6256 967 AT&T WorldNet Services
4323 1292 733 253 Time Warner Telecom
6197 1007 618 472 BellSouth Network Solutions,
721 1001 21929 303 DLA Systems Automation Center
174 961 5787 907 Cogent Communications
19029 951 151 111 New Edge Networks
18566 937 272 8 Covad Communications
701 923 8009 765 UUNET Technologies, Inc.
2386 877 522 676 AT&T Data Communications Serv
1239 848 2805 600 Sprint
209 709 3595 555 Qwest
19262 695 2089 165 Verizon Global Networks
20115 688 601 369 Charter Communications
22773 658 1745 45 Cox Communications, Inc.
7011 633 217 413 Citizens Utilities
11492 631 87 21 Cable One
852 582 1085 384 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 549 244 63 Canadian Research Network
3602 537 127 109 Sprint Canada, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 580 1951 456 UUNET - Commercial IP service
3352 310 1612 29 Ibernet, Internet Access Netw
3301 306 1071 292 TeliaNet Sweden
8220 290 474 268 COLT Telecommunications
3320 286 3989 239 Deutsche Telekom AG
680 245 2025 242 DFN-IP service G-WiN
3246 233 504 223 Song Networks
6746 227 89 203 Dynamic Network Technologies,
8708 218 276 201 Romania Data Systems S.A.
24863 207 40 9 LINKdotNET AS number
8551 202 198 24 Bezeq International
3269 198 2134 72 TELECOM ITALIA
3215 196 1662 93 France Telecom Transpac
1257 195 742 169 SWIPnet Swedish IP Network
8866 179 37 16 Bulgarian Telecommunication C
6830 175 765 35 UPC Distribution Services
786 171 1778 171 The JANET IP Service
5400 170 363 139 BT Ignite European Backbone
9121 170 931 27 TTnet Autonomous System
30890 170 15 63 SC Kappa Invexim SRL
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 700 1067 227 UniNet S.A. de C.V.
22047 409 158 11 VTR PUNTO NET S.A.
11172 324 110 84 Servicios Alestra S.A de C.V
16814 317 20 8 NSS, S.A.
6147 262 126 22 Telefonica Del Peru
14117 205 12 6 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
7303 163 76 20 Telecom Argentina Stet-France
21826 138 16 21 INTERCABLE
5639 132 12 9 Telecommunications Services o
11556 132 80 4 Cable-Wireless Panama
6503 129 149 78 AVANTEL, S.A.
19169 127 8 20 Telconet
14259 115 10 12 GTD Internet S.A.
23216 110 21 9 RAMtelecom Telecomunicaciones
6505 106 88 78 Global One Communicaoes Ltda
7910 105 7 10 ANDINET ON LINE
19429 103 58 44 E.T.B.
14522 100 13 7 SatNet S.A.
14571 97 25 3 Internet Group do Brasil
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 278 803 233 The Internet Solution
8452 170 60 7 TEDATA
6713 145 135 11 Itissalat Al-MAGHRIB
2018 123 314 104 Tertiary Education Network
5536 121 8 18 Internet Egypt Network
24835 117 50 7 RAYA Telecom - Egypt
33783 105 6 2 EEPAD TISP TELECOM & INTERNET
2905 73 155 66 The Internetworking Company o
20928 57 16 2 Noor Advanced Technologies AS
15475 55 84 4 Nile Online
5713 39 294 35 Telkom SA Ltd
15706 31 8 3 Sudatel Internet Exchange Aut
33774 30 7 20 AS Number for Telecom Algeria
12455 28 6 3 Jambonet Autonomous system
23889 26 8 11 MAURITIUS TELECOM
8524 24 1 4 AUCEGYPT Autonomous System
16637 24 14 22 Johnnic e-Ventures
10798 22 1 13 Standard Bank of South Africa
2561 19 6 2 Egyptian Universities Network
21491 19 17 2 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1292 1039 Time Warner Telecom
18566 937 929 Covad Communications
4134 1129 908 CHINANET-BACKBONE
9583 900 884 Sify Limited
4755 913 842 Videsh Sanchar Nigam Ltd. Aut
19029 951 840 New Edge Networks
721 1001 698 DLA Systems Automation Center
22773 658 613 Cox Communications, Inc.
11492 631 610 Cable One
6197 1007 535 BellSouth Network Solutions,
19262 695 530 Verizon Global Networks
19916 563 509 OLM LLC
5668 532 509 CenturyTel Internet Holdings,
9498 566 499 BHARTI BT INTERNET LTD.
17488 501 494 Hathway IP Over Cable Interne
855 549 486 Canadian Research Network
8151 700 473 UniNet S.A. de C.V.
7545 530 460 TPG Internet Pty Ltd
3602 537 428 Sprint Canada, Inc.
22047 409 398 VTR PUNTO NET S.A.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
36656 UNALLOCATED 64.18.154.0/24 19318 Albany International
36656 UNALLOCATED 64.20.54.0/24 19318 Albany International
36656 UNALLOCATED 64.20.55.0/24 19318 Albany International
36656 UNALLOCATED 64.20.57.0/24 19318 Albany International
36656 UNALLOCATED 64.20.58.0/24 19318 Albany International
36656 UNALLOCATED 64.20.59.0/24 19318 Albany International
36656 UNALLOCATED 64.20.60.0/24 19318 Albany International
36656 UNALLOCATED 64.20.61.0/24 19318 Albany International
36656 UNALLOCATED 64.20.62.0/24 19318 Albany International
36727 UNALLOCATED 74.128.0.0/15 3356 Level 3 Communicatio
36727 UNALLOCATED 74.130.0.0/16 3356 Level 3 Communicatio
36727 UNALLOCATED 74.131.0.0/16 1239 Sprint
36727 UNALLOCATED 74.132.0.0/16 3356 Level 3 Communicatio
36727 UNALLOCATED 74.133.0.0/17 3356 Level 3 Communicatio
36727 UNALLOCATED 74.133.128.0/18 3356 Level 3 Communicatio
36727 UNALLOCATED 74.134.0.0/15 1239 Sprint
36727 UNALLOCATED 74.136.0.0/16 1239 Sprint
36727 UNALLOCATED 74.137.0.0/18 3356 Level 3 Communicatio
36727 UNALLOCATED 74.137.64.0/20 3356 Level 3 Communicatio
36727 UNALLOCATED 74.137.80.0/20 1239 Sprint
36727 UNALLOCATED 74.137.96.0/20 1239 Sprint
36727 UNALLOCATED 74.137.112.0/20 1239 Sprint
36727 UNALLOCATED 74.137.128.0/17 3356 Level 3 Communicatio
65289 PRIVATE 148.164.1.0/24 4755 Videsh Sanchar Nigam
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
65280 PRIVATE 203.197.161.0/24 4755 Videsh Sanchar Nigam
65280 PRIVATE 203.200.14.0/24 4755 Videsh Sanchar Nigam
65280 PRIVATE 203.200.21.0/24 4755 Videsh Sanchar Nigam
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
158.0.0.0/13 721 DLA Systems Automation Center
183.206.196.0/24 2188 FR-RENATER-ASTER
192.44.0.0/24 5501 Fraunhofer Gesellschaft
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.172.0.0/19 721 DLA Systems Automation Center
223.1.1.0/24 22724 PUNTONET S.A.
223.1.2.0/24 22724 PUNTONET S.A.
223.1.3.0/24 22724 PUNTONET S.A.
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:18 /9:9 /10:9 /11:28 /12:89
/13:199 /14:361 /15:706 /16:8796 /17:3201 /18:5278
/19:11597 /20:13106 /21:11313 /22:14494 /23:15593 /24:101607
/25:380 /26:266 /27:209 /28:61 /29:70 /30:35
/31:0 /32:30
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 920 937 Covad Communications
19029 882 951 New Edge Networks
6197 796 1007 BellSouth Network Solutions,
7018 795 1508 AT&T WorldNet Services
9583 729 900 Sify Limited
4323 636 1292 Time Warner Telecom
11492 622 631 Cable One
2386 597 877 AT&T Data Communications Serv
19916 557 563 OLM LLC
7011 542 633 Citizens Utilities
4766 486 676 Korea Telecom (KIX)
855 424 549 Canadian Research Network
5668 413 532 CenturyTel Internet Holdings,
15270 388 419 PaeTec.net -a division of Pae
1239 385 848 Sprint
702 359 580 UUNET - Commercial IP service
6198 356 507 BellSouth Network Solutions,
6517 356 386 Yipes Communications, Inc.
17849 347 347 Telecommunications Technology
8151 345 700 UniNet S.A. de C.V.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 8:43 12:1634 13:1 15:12 16:3
17:3 18:4 20:43 24:740 25:1 30:2
32:59 38:211 40:54 41:1 44:3 47:6
52:4 55:1 56:3 57:25 58:152 59:188
60:181 61:844 62:764 63:1924 64:3180 65:2203
66:2993 67:600 68:659 69:1484 70:328 71:80
72:688 73:23 74:32 80:797 81:631 82:599
83:385 84:380 85:528 86:390 87:325 88:80
89:172 124:265 125:379 128:172 129:182 130:109
131:318 132:28 133:8 134:158 135:46 136:179
137:71 138:197 139:68 140:465 141:136 142:382
143:163 144:225 145:43 146:325 147:135 148:330
149:187 150:116 151:80 152:64 153:106 154:6
155:196 156:98 157:143 158:162 159:171 160:87
161:72 162:259 163:146 164:180 165:194 166:163
167:244 168:483 169:129 170:332 171:13 183:1
190:59 192:5735 193:3365 194:2600 195:1838 196:844
198:3900 199:3225 200:4433 201:922 202:6599 203:6887
204:3887 205:2080 206:2403 207:2939 208:2077 209:3802
210:1915 211:684 212:1188 213:1477 214:313 215:41
216:4117 217:1172 218:275 219:184 220:655 221:358
222:149 223:3
End of report
1
0
BGP Update Report
Interval: 21-Apr-06 -to- 04-May-06 (14 days)
Observation Point: BGP Peering with AS4637
TOP 20 Unstable Origin AS
Rank ASN Upds % Upds/Pfx AS-Name
1 - AS855 53131 4.8% 95.7 -- CANET-ASN-4 - Aliant Telecom
2 - AS7015 29974 2.7% 10.2 -- CCCH-AS2 - Comcast Cable Communications Holdings, Inc
3 - AS4323 13502 1.2% 10.5 -- TWTC - Time Warner Telecom, Inc.
4 - AS15105 11385 1.0% 52.2 -- NETWORKTELEPHONE - Network Telephone Corporation
5 - AS3475 10425 0.9% 386.1 -- LANT-AFLOAT - NCTAMS LANT DET HAMPTON ROADS
6 - AS33783 10183 0.9% 95.2 --
7 - AS17974 10139 0.9% 28.0 -- TELKOMNET-AS2-AP PT TELEKOMUNIKASI INDONESIA
8 - AS702 9246 0.8% 12.1 -- AS702 MCI EMEA - Commercial IP service provider in Europe
9 - AS15290 8761 0.8% 28.5 -- ALLST-15290 - Allstream Corp. Corporation Allstream
10 - AS577 8300 0.7% 78.3 -- BACOM - Bell Canada
11 - AS9340 8065 0.7% 35.4 -- INDONET-AS-AP INDO Internet, PT
12 - AS14654 7445 0.7% 124.1 -- WAYPORT - Wayport
13 - AS5839 7296 0.7% 304.0 -- DDN-ASNBLK - DoD Network Information Center
14 - AS7552 7044 0.6% 77.4 -- VIETEL-AS-AP Vietel Corporation
15 - AS9121 6665 0.6% 26.3 -- TTNET TTnet Autonomous System
16 - AS14410 6585 0.6% 1317.0 -- DALTON - MCM, Inc., DBA: Internet@Dalton
17 - AS30890 6556 0.6% 38.3 -- EVOLVA Evolva Telecom
18 - AS15611 6357 0.6% 83.6 -- Iranian Research Organisation
19 - AS23918 6278 0.6% 48.7 -- CBB-BGP-IBARAKI Connexion By Boeing Ibaraki AS
20 - AS2669 6251 0.6% 48.8 -- CDAGOVN - Government Telecommunications and Informatics Services
TOP 20 Unstable Origin AS (Updates per announced prefix)
Rank ASN Upds % Upds/Pfx AS-Name
1 - AS7684 4614 0.4% 4614.0 -- SAKURA-A SAKURA Internet Inc.
2 - AS3043 2876 0.3% 2876.0 -- AMPHIB-AS - Amphibian Media Corporation
3 - AS21027 2857 0.3% 2857.0 -- ASN-PARADORES PARADORES Autonomous System
4 - AS14410 6585 0.6% 1317.0 -- DALTON - MCM, Inc., DBA: Internet@Dalton
5 - AS9747 978 0.1% 978.0 -- EZINTERNET-AS-AP EZInternet Pty Ltd
6 - AS27016 945 0.1% 945.0 -- NRC-NET - United States Nuclear Regulatory Commission
7 - AS34378 908 0.1% 908.0 -- RUG-AS Razguliay-UKRROS Group
8 - AS16705 1721 0.1% 860.5 -- STORAGEAPPS - Storage Apps Inc.
9 - AS36565 726 0.1% 726.0 -- COUNTY-OF-MONTGOMERY-PA - County of Montgomery
10 - AS36000 656 0.1% 656.0 -- NHA-ASN1 - Northern Health Authority
11 - AS13436 654 0.1% 654.0 -- STELLATE-CCCLC - Stellate Partners - CCCLC
12 - AS4678 1942 0.2% 647.3 -- FINE CANON NETWORK COMMUNICATIONS INC.
13 - AS23917 1250 0.1% 625.0 -- BRIBIE-NET-AS-AP Bribie Island Net Multihomed, Brisbane
14 - AS16776 2396 0.2% 479.2 -- HOMESTORE-IBS - Homestore.com, Inc
15 - AS26467 426 0.0% 426.0 -- HYPERTEK - HyperTEK Corporation
16 - AS21260 841 0.1% 420.5 -- POSITIVE-INTERNET-UK-AS Positive Internet UK AS
17 - AS25435 1235 0.1% 411.7 -- TELESONIQUE-AS Telesonique
18 - AS10571 1202 0.1% 400.7 -- GEOACCESS-AS - GeoAccess
19 - AS4032 387 0.0% 387.0 -- TASDAC - TASDAC
20 - AS3475 10425 0.9% 386.1 -- LANT-AFLOAT - NCTAMS LANT DET HAMPTON ROADS
TOP 20 Unstable Prefixes
Rank Prefix Upds % Origin AS -- AS Name
1 - 59.106.255.0/2 4614 0.3% AS7684 -- SAKURA-A SAKURA Internet Inc.
2 - 209.140.24.0/2 2876 0.2% AS3043 -- AMPHIB-AS - Amphibian Media Corporation
3 - 62.81.240.0/24 2857 0.2% AS21027 -- ASN-PARADORES PARADORES Autonomous System
4 - 61.0.0.0/8 1937 0.1% AS4678 -- FINE CANON NETWORK COMMUNICATIONS INC.
5 - 61.8.114.0/24 1567 0.1% AS9476 -- INTRAPOWER-AS-AP Intrapower
6 - 208.28.80.0/21 1357 0.1% AS7013 -- NETSELECT - Health Sciences Libraries Consortium
7 - 65.119.232.0/2 1342 0.1% AS14410 -- DALTON - MCM, Inc., DBA: Internet@Dalton
8 - 205.160.25.0/2 1337 0.1% AS14410 -- DALTON - MCM, Inc., DBA: Internet@Dalton
9 - 208.46.29.0/24 1337 0.1% AS14410 -- DALTON - MCM, Inc., DBA: Internet@Dalton
10 - 65.174.4.0/23 1286 0.1% AS14410 -- DALTON - MCM, Inc., DBA: Internet@Dalton
11 - 207.43.166.0/2 1283 0.1% AS14410 -- DALTON - MCM, Inc., DBA: Internet@Dalton
12 - 203.25.67.0/24 1243 0.1% AS23607 -- ITXPRESS-AS-AP itXpress Pty Ltd. Network AS ISP and DSL
13 - 205.70.0.0/24 1238 0.1% AS3475 -- LANT-AFLOAT - NCTAMS LANT DET HAMPTON ROADS
AS5237 -- DODNIC - DoD Network Information Center
14 - 205.70.9.0/24 1236 0.1% AS3475 -- LANT-AFLOAT - NCTAMS LANT DET HAMPTON ROADS
AS5237 -- DODNIC - DoD Network Information Center
15 - 205.70.8.0/24 1236 0.1% AS3475 -- LANT-AFLOAT - NCTAMS LANT DET HAMPTON ROADS
AS5237 -- DODNIC - DoD Network Information Center
16 - 205.70.7.0/24 1236 0.1% AS3475 -- LANT-AFLOAT - NCTAMS LANT DET HAMPTON ROADS
AS5237 -- DODNIC - DoD Network Information Center
17 - 205.70.10.0/24 1234 0.1% AS3475 -- LANT-AFLOAT - NCTAMS LANT DET HAMPTON ROADS
AS5237 -- DODNIC - DoD Network Information Center
18 - 205.70.12.0/24 1203 0.1% AS3475 -- LANT-AFLOAT - NCTAMS LANT DET HAMPTON ROADS
AS5237 -- DODNIC - DoD Network Information Center
19 - 205.70.1.0/24 1168 0.1% AS3475 -- LANT-AFLOAT - NCTAMS LANT DET HAMPTON ROADS
AS5237 -- DODNIC - DoD Network Information Center
20 - 203.25.73.0/24 1127 0.1% AS4854 -- NETSPACE-AS-AP Netspace Online Systems
Details at http://bgpupdates.potaroo.net
------------------------------------
Copies of this report are mailed to:
nanog(a)merit.edu
eof-list(a)ripe.net
apops(a)apops.net
routing-wg(a)ripe.net
afnog(a)afnog.org
ausnog(a)ausnog.net
1
0
This report has been generated at Fri May 5 21:48:05 2006 AEST.
The report analyses the BGP Routing Table of an AS4637 (Reach) router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org/as4637 for a current version of this report.
Recent Table History
Date Prefixes CIDR Agg
28-04-06 183702 121040
29-04-06 183886 121205
30-04-06 183892 121170
01-05-06 183957 121265
02-05-06 184015 121081
03-05-06 183721 120991
04-05-06 183612 121112
05-05-06 184095 121146
AS Summary
21993 Number of ASes in routing system
9149 Number of ASes announcing only one prefix
1494 Largest number of prefixes announced by an AS
AS7018 : ATT-INTERNET4 - AT&T WorldNet Services
91299584 Largest address span announced by an AS (/32s)
AS721 : DLA-ASNBLOCK-AS - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 05May06 ---
ASnum NetsNow NetsAggr NetGain % Gain Description
Table 183998 121154 62844 34.2% All ASes
AS4323 1287 256 1031 80.1% TWTC - Time Warner Telecom,
Inc.
AS4134 1121 284 837 74.7% CHINANET-BACKBONE
No.31,Jin-rong Street
AS18566 937 188 749 79.9% COVAD - Covad Communications
Co.
AS4755 917 219 698 76.1% VSNL-AS Videsh Sanchar Nigam
Ltd. Autonomous System
AS721 1001 308 693 69.2% DLA-ASNBLOCK-AS - DoD Network
Information Center
AS22773 655 54 601 91.8% CCINET-2 - Cox Communications
Inc.
AS7018 1494 964 530 35.5% ATT-INTERNET4 - AT&T WorldNet
Services
AS6197 1007 480 527 52.3% BATI-ATL - BellSouth Network
Solutions, Inc
AS19916 563 65 498 88.5% ASTRUM-0001 - OLM LLC
AS855 550 63 487 88.5% CANET-ASN-4 - Aliant Telecom
AS17488 501 50 451 90.0% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS3602 537 109 428 79.7% AS3602-RTI - Rogers Telecom
Inc.
AS9498 567 150 417 73.5% BBIL-AP BHARTI BT INTERNET
LTD.
AS17676 486 108 378 77.8% JPNIC-JP-ASN-BLOCK Japan
Network Information Center
AS19262 648 281 367 56.6% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS15270 414 50 364 87.9% AS-PAETEC-NET - PaeTec.net -a
division of
PaeTecCommunications, Inc.
AS11492 631 274 357 56.6% CABLEONE - CABLE ONE
AS812 376 33 343 91.2% ROGERS-CABLE - Rogers Cable
Inc.
AS4766 644 306 338 52.5% KIXS-AS-KR Korea Telecom
AS22047 409 81 328 80.2% VTR BANDA ANCHA S.A.
AS6467 364 42 322 88.5% ESPIRECOMM - Xspedius
Communications Co.
AS18101 339 29 310 91.4% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS16852 354 51 303 85.6% FOCAL-CHICAGO - Focal Data
Communications of Illinois
AS5668 531 249 282 53.1% AS-5668 - CenturyTel Internet
Holdings, Inc.
AS3352 310 29 281 90.6% TELEFONICA-DATA-ESPANA
Internet Access Network of
TDE
AS8151 700 422 278 39.7% Uninet S.A. de C.V.
AS14654 291 14 277 95.2% WAYPORT - Wayport
AS6167 340 64 276 81.2% CELLCO-PART - Cellco
Partnership
AS6198 507 242 265 52.3% BATI-MIA - BellSouth Network
Solutions, Inc
AS16814 317 56 261 82.3% NSS S.A.
Total 18798 5521 13277 70.6% Top 30 total
Possible Bogus Routes
24.246.0.0/17 AS7018 ATT-INTERNET4 - AT&T WorldNet Services
24.246.128.0/18 AS7018 ATT-INTERNET4 - AT&T WorldNet Services
61.4.64.0/20 AS9929 CNCNET-CN China Netcom Corp.
64.17.32.0/24 AS13488 CBWU-13488 - Continental Broadband Florida, Inc DBA WebUnited
64.17.33.0/24 AS13488 CBWU-13488 - Continental Broadband Florida, Inc DBA WebUnited
64.17.37.0/24 AS13488 CBWU-13488 - Continental Broadband Florida, Inc DBA WebUnited
64.71.0.0/20 AS33544 WILINE - WiLine Networks Inc.
64.90.128.0/20 AS6971 ESCH - Eschelon Telecommunications, Inc.
66.11.32.0/20 AS6261 VISINET - Visionary Systems, Inc.
66.37.96.0/20 AS3764 IA-HOU-AS - Internet America, Inc.
66.96.0.0/20 AS3770 WORLDPATH-AS - WorldPath Internet Services
66.117.8.0/24 AS174 COGENT Cogent/PSI
66.163.96.0/20 AS25767 WAVEFORM - Waveform Technology, LLC
66.187.96.0/24 AS10026 ANC Asia Netcom Corporation
66.187.108.0/24 AS10026 ANC Asia Netcom Corporation
66.187.109.0/24 AS10026 ANC Asia Netcom Corporation
66.235.158.0/23 AS7018 ATT-INTERNET4 - AT&T WorldNet Services
69.31.151.0/24 AS26627 AS-PILOSOFT - Pilosoft, Inc.
69.39.193.0/24 AS25973 MZIMA - Mzima Networks, Inc.
69.39.195.0/24 AS25973 MZIMA - Mzima Networks, Inc.
69.39.196.0/24 AS25973 MZIMA - Mzima Networks, Inc.
81.92.176.0/20 AS35467 DCF-AS DataCenter Fryslan AS
89.188.0.0/19 AS31477 DUOCAST-AS Duocast
91.192.0.0/16 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS Project.
91.255.248.0/21 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS Project.
125.213.0.0/16 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street
131.64.0.0/12 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
132.0.0.0/10 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
137.0.0.0/13 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
138.136.0.0/13 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
151.135.0.0/16 AS4763 TELSTRANZ-AS TelstraClear Ltd
158.0.0.0/13 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
163.142.0.0/16 AS2500 JPNIC-ASBLOCK-AP JPNIC
183.206.196.0/24 AS2188 FR-RENATER-ASTER Reseau Regional ASTER
192.30.93.0/24 AS17757 HPAUS-AP HP Australia
192.30.94.0/24 AS17757 HPAUS-AP HP Australia
192.40.105.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System
192.44.0.0/19 AS702 AS702 MCI EMEA - Commercial IP service provider in Europe
192.44.0.0/24 AS5501 FRAUNHOFER-CLUSTER-BW Fraunhofer Gesellschaft
192.69.107.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System
192.69.108.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System
192.69.177.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System
192.70.164.0/24 AS25689 NRCNET-AS - National Research Council of Canada
192.81.183.0/24 AS719 ELISA-AS Elisa Oyj
192.81.184.0/24 AS719 ELISA-AS Elisa Oyj
192.88.99.0/24 AS559 SWITCH SWITCH, Swiss Education and Research Network
192.96.36.0/24 AS5713 AFRINIC African Network Information Center
192.96.37.0/24 AS10474 AFRINIC African Network Information Center
192.96.135.0/24 AS2018 TENET - 1 - The Uninet Project
192.96.136.0/23 AS2018 TENET - 1 - The Uninet Project
192.96.140.0/24 AS2018 TENET - 1 - The Uninet Project
192.96.143.0/24 AS2018 TENET - 1 - The Uninet Project
192.96.145.0/24 AS2018 TENET - 1 - The Uninet Project
192.96.177.0/24 AS6083 AFRINIC African Network Information Center
192.96.250.0/24 AS2018 TENET - 1 - The Uninet Project
192.107.104.0/24 AS6458 GUATEL
192.122.212.0/24 AS209 ASN-QWEST - Qwest
192.124.252.0/22 AS680 DFN-IP DFN-IP service X-WiN
192.133.6.0/24 AS10282 EQUANT-CEEUR EQUANT AS for Central and Eastern Europe region
192.153.144.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
192.168.255.255/32 AS4637 REACH Reach Network Border AS
192.172.0.0/19 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
192.188.208.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
193.36.1.0/24 AS8220 COLT COLT Telecommunications
193.37.69.0/24 AS2856 BT-UK-AS BTnet UK Regional network
193.110.77.0/24 AS3356 LEVEL3 Level 3 Communications
193.110.78.0/24 AS3356 LEVEL3 Level 3 Communications
193.110.79.0/24 AS3356 LEVEL3 Level 3 Communications
194.31.227.0/24 AS21461 TRANSFAIRNET Transfair-net GmbH Krefeld
194.59.176.0/20 AS1273 CW Cable & Wireless
194.153.156.0/24 AS24865 KMITCHELL-AS Keith Mitchell's Network
194.246.72.0/23 AS8893 ARTFILES-AS Artfiles New Media GmbH
195.246.216.0/22 AS15622 MEOCOM old meocom Autonomous System
198.23.26.0/24 AS4390 BELLATLANTIC-COM - Bell Atlantic, Inc.
198.54.82.0/24 AS2018 TENET - 1 - The Uninet Project
198.54.92.0/24 AS2018 TENET - 1 - The Uninet Project
198.54.222.0/24 AS2018 TENET - 1 - The Uninet Project
198.54.249.0/24 AS2018 TENET - 1 - The Uninet Project
198.54.250.0/24 AS2018 TENET - 1 - The Uninet Project
198.54.251.0/24 AS2018 TENET - 1 - The Uninet Project
198.97.72.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
198.97.80.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
198.97.96.0/19 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
198.97.240.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
198.101.4.0/22 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
198.136.32.0/20 AS19329 MCNET - Martin County Board of County Commissioners
198.161.87.0/24 AS6539 GT-BELL - Bell Canada
198.163.155.0/24 AS684 MTSAL-ASN - MTS Allstream Inc.
198.167.0.0/16 AS7456 INTERHOP - Interhop Network SERVICES Inc.
198.168.0.0/16 AS701 ALTERNET-AS - UUNET Technologies, Inc.
198.169.0.0/16 AS803 SASKTEL - SaskTel
198.199.198.0/24 AS13671 VRIS-AS-BLOCK-13661-13675 - Verizon Internet Services Inc.
198.232.133.0/24 AS23075 SKOTOS-AS - Skotos Tech, Inc
199.9.128.0/17 AS668 ASN-ASNET-NET-AS - Defense Research and Engineering Network
199.10.0.0/16 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
199.60.0.0/20 AS271 BCNET-AS - University of British Columbia
199.114.0.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
199.114.128.0/18 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
199.114.130.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
199.114.132.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
199.114.134.0/24 AS3541 ITSDN-U4 - DISA/UNRRA
199.114.136.0/24 AS27044 DDN-ASNBLK1 - DoD Network Information Center
199.114.138.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
199.114.140.0/24 AS3544 ITSDN-U7 - DISA/UNRRA
199.114.142.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
199.114.144.0/24 AS27064 DDN-ASNBLK1 - DoD Network Information Center
199.114.148.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
199.114.150.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
199.114.152.0/24 AS27033 DDN-ASNBLK1 - DoD Network Information Center
199.114.153.0/24 AS27034 DDN-ASNBLK1 - DoD Network Information Center
199.114.154.0/24 AS3542 ITSDN-U5 - DISA/UNRRA
199.114.160.0/24 AS1733 CENTAF-SWA - AF DDN PMO
199.121.0.0/16 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
199.123.0.0/18 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
199.123.16.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
199.123.80.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
199.189.32.0/19 AS7332 IQUEST-AS - IQuest Internet
199.202.0.0/16 AS701 ALTERNET-AS - UUNET Technologies, Inc.
199.246.116.0/24 AS813 UUNET-AS1 - UUNET Technologies, Inc.
202.9.64.0/19 AS9290 TPN-AS-AP Smart Global Network (M) Sdn Bhd
202.45.159.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom
202.58.113.0/24 AS19161 INNOCOM-TELECOM - INNOCOM TELECOM
202.74.32.0/19 AS9315 CWN-AS-AP Chomanan WorldNet Co., Ltd.
202.86.252.0/22 AS9304 HUTCHISON-AS-AP Hutchison Global Communications
202.86.253.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications
202.86.254.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications
202.86.255.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications
202.90.33.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS
202.90.40.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS
202.90.41.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS
202.90.42.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS
202.90.43.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS
202.90.44.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS
202.93.0.0/20 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street
202.131.64.0/19 AS9381 NEWTT-IP-AP Wharf T&T Ltd.
202.148.32.0/20 AS17495 GATEWAY-AP BROADBAND WIRELESSS INTERNET SERVICE PROVIDER
203.13.171.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd
203.62.0.0/17 AS7575 AARNET-AS-AP Australian Academic and Reasearch Network (AARNet)
203.78.48.0/20 AS9299 IPG-AS-AP Philippine Long Distance Telephone Company
203.89.134.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom
203.89.139.0/24 AS17911 BRAINPK-AS-AP Brain Telecommunication Ltd.
203.89.143.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom
203.89.144.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom
203.89.147.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom
203.89.148.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom
203.89.149.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom
203.89.150.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom
203.89.151.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom
203.89.153.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom
203.89.158.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom
203.89.159.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom
203.99.142.0/24 AS9826 ILINK-HK-AP iLink.net Ltd
203.111.192.0/20 AS7473 SINGTEL-AS-AP Singapore Telecom
204.29.185.0/24 AS7268 ATHENET - Athenet Internet Services
204.48.118.0/23 AS29912 CITIZENS-PROPERTY-INSURANCE-CORPORATION - Citizens Property Insurance Corporation
204.48.119.0/24 AS29912 CITIZENS-PROPERTY-INSURANCE-CORPORATION - Citizens Property Insurance Corporation
204.154.125.0/24 AS3952 TELLABS-ASN - TELLABS Operations, Inc.
204.154.126.0/24 AS3952 TELLABS-ASN - TELLABS Operations, Inc.
204.154.127.0/24 AS3952 TELLABS-ASN - TELLABS Operations, Inc.
205.150.0.0/15 AS701 ALTERNET-AS - UUNET Technologies, Inc.
206.128.104.0/21 AS11709 VIC - VIRTUAL INTERACTIVE CENTER
206.167.57.0/24 AS376 RISQ-AS - Reseau Interordinateurs Scientique Quebecois (RISQ)
206.191.64.0/18 AS15290 ALLST-15290 - Allstream Corp. Corporation Allstream
206.191.96.0/19 AS15290 ALLST-15290 - Allstream Corp. Corporation Allstream
207.231.96.0/19 AS11194 NUNETPA - NuNet Inc
209.40.192.0/21 AS6487 CyberNet de Guatemala S.A.
209.40.200.0/21 AS6487 CyberNet de Guatemala S.A.
209.40.208.0/21 AS6487 CyberNet de Guatemala S.A.
209.40.216.0/21 AS6487 CyberNet de Guatemala S.A.
209.205.69.0/24 AS21578 Universidad autonoma de Bucaramanga
209.205.70.0/24 AS21578 Universidad autonoma de Bucaramanga
209.205.81.0/24 AS15066 SkyNet de Colombia S.A.
209.205.82.0/24 AS15066 SkyNet de Colombia S.A.
209.205.84.0/24 AS15066 SkyNet de Colombia S.A.
209.234.0.0/18 AS3845 STATE-NET - CS&W, Inc.
216.37.110.0/23 AS4264 CERNET-ASN-BLOCK - California Education and Research Federation Network
216.71.224.0/20 AS23527 COTELLIGENCE - Cotelligence, Inc.
216.96.128.0/18 AS7018 ATT-INTERNET4 - AT&T WorldNet Services
216.201.72.0/24 AS14709 Telefonica Moviles Panama S.A.
216.201.73.0/24 AS14709 Telefonica Moviles Panama S.A.
216.201.74.0/24 AS14709 Telefonica Moviles Panama S.A.
216.201.75.0/24 AS14709 Telefonica Moviles Panama S.A.
216.201.76.0/24 AS14709 Telefonica Moviles Panama S.A.
216.201.77.0/24 AS14709 Telefonica Moviles Panama S.A.
216.201.78.0/24 AS14709 Telefonica Moviles Panama S.A.
216.201.79.0/24 AS14709 Telefonica Moviles Panama S.A.
216.228.64.0/21 AS6295 WHIDBEY1 - Whidbey Internet Services
216.228.224.0/20 AS13674 VRIS-AS-BLOCK-13661-13675 - Verizon Internet Services Inc.
216.240.240.0/20 AS7018 ATT-INTERNET4 - AT&T WorldNet Services
216.240.242.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services
Please see http://www.cidr-report.org for the full report
------------------------------------
Copies of this report are mailed to:
nanog(a)merit.edu
eof-list(a)ripe.net
apops(a)apops.net
routing-wg(a)ripe.net
afnog(a)afnog.org
ausnog(a)ausnog.net
1
0
This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.
Daily listings are sent to bgp-stats(a)lists.apnic.net
If you have any comments please contact Philip Smith <pfs(a)cisco.com>.
Routing Table Report 04:00 +10GMT Sat 29 Apr, 2006
Analysis Summary
----------------
BGP routing table entries examined: 187662
Prefixes after maximum aggregation: 103564
Unique aggregates announced to Internet: 91730
Total ASes present in the Internet Routing Table: 22024
Origin-only ASes present in the Internet Routing Table: 19168
Origin ASes announcing only one prefix: 9112
Transit ASes present in the Internet Routing Table: 2856
Transit-only ASes present in the Internet Routing Table: 64
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 26
Prefixes from unregistered ASNs in the Routing Table: 2
Unregistered ASNs in the Routing Table: 3
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 10
Number of addresses announced to Internet: 1531037600
Equivalent to 91 /8s, 65 /16s and 199 /24s
Percentage of available address space announced: 41.3
Percentage of allocated address space announced: 59.8
Percentage of available address space allocated: 69.1
Total number of prefixes smaller than registry allocations: 92560
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 39444
Total APNIC prefixes after maximum aggregation: 16495
Prefixes being announced from the APNIC address blocks: 37144
Unique aggregates announced from the APNIC address blocks: 18237
APNIC Region origin ASes present in the Internet Routing Table: 2544
APNIC Region origin ASes announcing only one prefix: 715
APNIC Region transit ASes present in the Internet Routing Table: 390
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 224866528
Equivalent to 13 /8s, 103 /16s and 48 /24s
Percentage of available APNIC address space announced: 70.3
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911
APNIC Address Blocks 58/7, 60/7, 121/8, 122/7, 124/7, 126/8, 202/7
210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 97490
Total ARIN prefixes after maximum aggregation: 57569
Prefixes being announced from the ARIN address blocks: 71609
Unique aggregates announced from the ARIN address blocks: 26260
ARIN Region origin ASes present in the Internet Routing Table: 10653
ARIN Region origin ASes announcing only one prefix: 3984
ARIN Region transit ASes present in the Internet Routing Table: 982
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 288908288
Equivalent to 17 /8s, 56 /16s and 100 /24s
Percentage of available ARIN address space announced: 74.9
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863
ARIN Address Blocks 24/8, 63/8, 64/5, 72/6, 76/8, 199/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 37378
Total RIPE prefixes after maximum aggregation: 24958
Prefixes being announced from the RIPE address blocks: 34408
Unique aggregates announced from the RIPE address blocks: 23164
RIPE Region origin ASes present in the Internet Routing Table: 7926
RIPE Region origin ASes announcing only one prefix: 4142
RIPE Region transit ASes present in the Internet Routing Table: 1301
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 247025088
Equivalent to 14 /8s, 185 /16s and 77 /24s
Percentage of available RIPE address space announced: 77.5
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
RIPE Address Blocks 62/8, 80/5, 88/6, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 11217
Total LACNIC prefixes after maximum aggregation: 3641
Prefixes being announced from the LACNIC address blocks: 9325
Unique aggregates announced from the LACNIC address blocks: 5400
LACNIC Region origin ASes present in the Internet Routing Table: 682
LACNIC Region origin ASes announcing only one prefix: 223
LACNIC Region transit ASes present in the Internet Routing Table: 129
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 26
Number of LACNIC addresses announced to Internet: 26742272
Equivalent to 1 /8s, 152 /16s and 14 /24s
Percentage of available LACNIC address space announced: 39.8
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 189/8, 190/8, 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 2131
Total AfriNIC prefixes after maximum aggregation: 901
Prefixes being announced from the AfriNIC address blocks: 1457
Unique aggregates announced from the AfriNIC address blocks: 948
AfriNIC Region origin ASes present in the Internet Routing Table: 155
AfriNIC Region origin ASes announcing only one prefix: 48
AfriNIC Region transit ASes present in the Internet Routing Table: 25
Average AfriNIC Region AS path length visible: 3.5
Max AfriNIC Region AS path length visible: 13
Number of AfriNIC addresses announced to Internet: 4057344
Equivalent to 0 /8s, 61 /16s and 233 /24s
Percentage of available AfriNIC address space announced: 12.1
AfriNIC AS Blocks 36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 1124 7073 221 CHINANET-BACKBONE
9583 896 109 16 Sify Limited
4755 768 257 66 Videsh Sanchar Nigam Ltd. Aut
4766 680 4436 307 Korea Telecom (KIX)
1221 617 1556 472 Telstra Pty Ltd
9498 576 212 72 BHARTI BT INTERNET LTD.
7545 527 108 69 TPG Internet Pty Ltd
17488 501 31 7 Hathway IP Over Cable Interne
17676 486 7029 108 Softbank BB Corp.
9443 450 110 81 Primus Telecommunications
4802 382 81 176 Wantree Development
17849 346 22 113 Telecommunications Technology
18101 340 69 18 Reliance Infocom Ltd Internet
2907 336 1749 312 SINET Japan
17557 326 27 158 Pakistan Telecom
9929 323 221 57 China Netcom Corp.
17974 307 120 28 PT TELEKOMUNIKASI INDONESIA
7474 298 211 228 SingTel Optus Pty Ltd
9800 274 410 67 CHINA UNICOM
9837 265 78 158 Powertel Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1503 6252 977 AT&T WorldNet Services
4323 1289 732 252 Time Warner Telecom
6197 1008 618 472 BellSouth Network Solutions,
721 1004 21945 305 DLA Systems Automation Center
174 962 5787 909 Cogent Communications
19029 953 151 111 New Edge Networks
18566 936 272 8 Covad Communications
701 933 8030 773 UUNET Technologies, Inc.
2386 876 537 668 AT&T Data Communications Serv
1239 844 2804 597 Sprint
209 717 3616 559 Qwest
19262 691 2021 162 Verizon Global Networks
20115 680 595 362 Charter Communications
22773 654 1737 44 Cox Communications, Inc.
7011 632 217 413 Citizens Utilities
11492 629 86 20 Cable One
852 582 1085 384 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 550 244 63 Canadian Research Network
3602 538 127 109 Sprint Canada, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 580 1951 456 UUNET - Commercial IP service
3352 310 1612 29 Ibernet, Internet Access Netw
3301 309 1072 294 TeliaNet Sweden
3320 289 3989 239 Deutsche Telekom AG
8220 289 474 267 COLT Telecommunications
680 245 2025 242 DFN-IP service G-WiN
3246 231 504 221 Song Networks
6746 226 88 201 Dynamic Network Technologies,
8708 218 276 201 Romania Data Systems S.A.
24863 207 40 9 LINKdotNET AS number
8551 202 198 24 Bezeq International
1257 196 742 170 SWIPnet Swedish IP Network
3215 196 1662 93 France Telecom Transpac
3269 196 2070 73 TELECOM ITALIA
8866 181 37 16 Bulgarian Telecommunication C
786 171 1778 171 The JANET IP Service
5400 171 363 140 BT Ignite European Backbone
6830 169 765 35 UPC Distribution Services
9121 168 931 27 TTnet Autonomous System
30890 163 15 62 SC Kappa Invexim SRL
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 701 1067 227 UniNet S.A. de C.V.
22047 408 158 11 VTR PUNTO NET S.A.
11172 323 110 84 Servicios Alestra S.A de C.V
16814 316 20 8 NSS, S.A.
6147 261 124 23 Telefonica Del Peru
14117 205 12 6 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
7303 160 75 18 Telecom Argentina Stet-France
21826 133 16 19 INTERCABLE
5639 132 12 9 Telecommunications Services o
11556 132 80 4 Cable-Wireless Panama
6503 127 149 79 AVANTEL, S.A.
19169 126 8 24 Telconet
14259 114 10 12 GTD Internet S.A.
23216 109 21 9 RAMtelecom Telecomunicaciones
6505 106 88 78 Global One Communicaoes Ltda
7910 105 7 10 ANDINET ON LINE
19429 103 58 44 E.T.B.
14522 99 13 7 SatNet S.A.
14571 97 25 3 Internet Group do Brasil
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 278 803 233 The Internet Solution
8452 170 60 7 TEDATA
6713 145 135 11 Itissalat Al-MAGHRIB
2018 123 314 104 Tertiary Education Network
5536 121 8 18 Internet Egypt Network
24835 117 50 7 RAYA Telecom - Egypt
33783 105 6 2 EEPAD TISP TELECOM & INTERNET
2905 73 155 66 The Internetworking Company o
15475 57 84 4 Nile Online
20928 57 16 2 Noor Advanced Technologies AS
12455 42 6 7 Jambonet Autonomous system
5713 39 294 35 Telkom SA Ltd
15706 31 8 3 Sudatel Internet Exchange Aut
33774 30 7 20 AS Number for Telecom Algeria
8524 24 1 4 AUCEGYPT Autonomous System
16637 24 14 22 Johnnic e-Ventures
23889 23 6 16 MAURITIUS TELECOM
10798 22 1 13 Standard Bank of South Africa
2561 19 6 2 Egyptian Universities Network
21491 19 17 2 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1289 1037 Time Warner Telecom
18566 936 928 Covad Communications
4134 1124 903 CHINANET-BACKBONE
9583 896 880 Sify Limited
19029 953 842 New Edge Networks
4755 768 702 Videsh Sanchar Nigam Ltd. Aut
721 1004 699 DLA Systems Automation Center
22773 654 610 Cox Communications, Inc.
11492 629 609 Cable One
6197 1008 536 BellSouth Network Solutions,
19262 691 529 Verizon Global Networks
19916 563 509 OLM LLC
9498 576 504 BHARTI BT INTERNET LTD.
5668 533 503 CenturyTel Internet Holdings,
17488 501 494 Hathway IP Over Cable Interne
855 550 487 Canadian Research Network
8151 701 474 UniNet S.A. de C.V.
7545 527 458 TPG Internet Pty Ltd
7757 477 458 AT&T Broadband
3602 538 429 Sprint Canada, Inc.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65241 PRIVATE 65.90.71.0/24 10794 Bank of America
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
158.0.0.0/13 721 DLA Systems Automation Center
183.206.196.0/24 2188 FR-RENATER-ASTER
192.44.0.0/24 5501 Fraunhofer Gesellschaft
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.172.0.0/19 721 DLA Systems Automation Center
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:18 /9:9 /10:9 /11:28 /12:89
/13:199 /14:361 /15:701 /16:8816 /17:3192 /18:5247
/19:11601 /20:13076 /21:11333 /22:14521 /23:15601 /24:101786
/25:382 /26:272 /27:225 /28:61 /29:70 /30:35
/31:0 /32:30
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 919 936 Covad Communications
19029 884 953 New Edge Networks
6197 797 1008 BellSouth Network Solutions,
7018 797 1503 AT&T WorldNet Services
9583 724 896 Sify Limited
4323 631 1289 Time Warner Telecom
11492 620 629 Cable One
2386 596 876 AT&T Data Communications Serv
19916 557 563 OLM LLC
7011 541 632 Citizens Utilities
4766 490 680 Korea Telecom (KIX)
7757 459 477 AT&T Broadband
855 425 550 Canadian Research Network
5668 414 533 CenturyTel Internet Holdings,
1239 380 844 Sprint
15270 376 407 PaeTec.net -a division of Pae
702 360 580 UUNET - Commercial IP service
6198 356 505 BellSouth Network Solutions,
6517 354 384 Yipes Communications, Inc.
17849 346 346 Telecommunications Technology
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 8:40 12:1629 13:1 15:12 16:3
17:3 18:4 20:43 24:887 25:1 30:2
32:58 38:208 40:54 41:1 44:3 45:2
47:6 52:4 55:1 56:3 57:31 58:150
59:185 60:177 61:831 62:765 63:1929 64:3158
65:2209 66:3091 67:598 68:677 69:1486 70:327
71:77 72:678 73:23 74:30 80:786 81:631
82:601 83:376 84:377 85:530 86:385 87:323
88:75 89:160 124:253 125:373 128:165 129:181
130:108 131:320 132:32 133:8 134:157 135:46
136:178 137:71 138:198 139:67 140:465 141:133
142:384 143:164 144:222 145:43 146:324 147:138
148:330 149:186 150:114 151:81 152:64 153:107
154:6 155:196 156:97 157:141 158:168 159:167
160:87 161:74 162:252 163:145 164:179 165:194
166:163 167:246 168:483 169:134 170:331 171:13
183:1 190:58 192:5775 193:3351 194:2597 195:1830
196:850 198:3906 199:3245 200:4430 201:911 202:6608
203:6823 204:3881 205:2090 206:2409 207:2936 208:2064
209:3795 210:1914 211:691 212:1260 213:1463 214:350
215:41 216:4103 217:1170 218:272 219:181 220:655
221:358 222:147
End of report
1
0
28 Apr '06
On 28 Apr, 2006, at 12:02, Winfried Haug wrote:
> Hello Titley,
>
> i am a little bit surprised about the wording concerning route
> objects in
> the ripe database:
>
>
OK, let me comment on this and write down what I think I said, or was
trying to say:
> F. Modify checks for creation of route: (input from Routing-WG)
>
> The checks at the moment are fully compliant with the RFCs so we
> should
> perhaps change
> the RFCs.
*** or the database if we agree to that. ***
> It was suggested that maybe we should be looking at the model
> proposed for
> the PKI to allow the overall holder of a block of address space to
> allow
> objects to be
> created, but that the onus finally rests on the holder of the AS
> number
> object.
*** with this I tried to say that whether the AS announces the prefix
or not is a decision to be taken by the operator of the AS, not the
holder of the address space, and that the owner of the address space
may be allowed to create the object as it, by itself, does not
directly reflect operations. At least this is how understood the
points that were brought up during the discussion ***
> It was agreed to do nothing and wait for the PKI model to be more
> fully
> developed.
>
I think it was agreed to take the discussion to the mailing list and
request more input as there was not much feedback during the session.
Joao
1
0
This report has been generated at Fri Apr 28 21:47:31 2006 AEST.
The report analyses the BGP Routing Table of an AS4637 (Reach) router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org/as4637 for a current version of this report.
Recent Table History
Date Prefixes CIDR Agg
21-04-06 183285 120842
22-04-06 183350 120877
23-04-06 183347 120844
24-04-06 183317 120918
25-04-06 183427 120941
26-04-06 183544 120895
27-04-06 183770 121008
28-04-06 183702 121067
AS Summary
21940 Number of ASes in routing system
9126 Number of ASes announcing only one prefix
1491 Largest number of prefixes announced by an AS
AS7018 : ATT-INTERNET4 - AT&T WorldNet Services
91373312 Largest address span announced by an AS (/32s)
AS721 : DLA-ASNBLOCK-AS - DoD Network Information Center
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 28Apr06 ---
ASnum NetsNow NetsAggr NetGain % Gain Description
Table 183771 121041 62730 34.1% All ASes
AS4323 1286 256 1030 80.1% TWTC - Time Warner Telecom,
Inc.
AS4134 1116 282 834 74.7% CHINANET-BACKBONE
No.31,Jin-rong Street
AS18566 936 187 749 80.0% COVAD - Covad Communications
Co.
AS721 1003 309 694 69.2% DLA-ASNBLOCK-AS - DoD Network
Information Center
AS22773 651 52 599 92.0% CCINET-2 - Cox Communications
Inc.
AS6197 1008 480 528 52.4% BATI-ATL - BellSouth Network
Solutions, Inc
AS7018 1491 974 517 34.7% ATT-INTERNET4 - AT&T WorldNet
Services
AS19916 563 65 498 88.5% ASTRUM-0001 - OLM LLC
AS855 550 63 487 88.5% CANET-ASN-4 - Aliant Telecom
AS7757 477 19 458 96.0% CCCH-AS4 - Comcast Cable
Communications Holdings, Inc
AS17488 501 50 451 90.0% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS4755 768 335 433 56.4% VSNL-AS Videsh Sanchar Nigam
Ltd. Autonomous System
AS3602 537 109 428 79.7% AS3602-RTI - Rogers Telecom
Inc.
AS9498 573 156 417 72.8% BBIL-AP BHARTI BT INTERNET
LTD.
AS17676 486 108 378 77.8% JPNIC-JP-ASN-BLOCK Japan
Network Information Center
AS19262 644 279 365 56.7% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS15270 402 41 361 89.8% AS-PAETEC-NET - PaeTec.net -a
division of
PaeTecCommunications, Inc.
AS11492 629 274 355 56.4% CABLEONE - CABLE ONE
AS812 376 33 343 91.2% ROGERS-CABLE - Rogers Cable
Inc.
AS4766 648 310 338 52.2% KIXS-AS-KR Korea Telecom
AS22047 408 81 327 80.1% VTR BANDA ANCHA S.A.
AS6467 373 47 326 87.4% ESPIRECOMM - Xspedius
Communications Co.
AS18101 340 22 318 93.5% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS16852 354 51 303 85.6% FOCAL-CHICAGO - Focal Data
Communications of Illinois
AS3352 310 29 281 90.6% TELEFONICA-DATA-ESPANA
Internet Access Network of
TDE
AS5668 532 253 279 52.4% AS-5668 - CenturyTel Internet
Holdings, Inc.
AS6167 341 64 277 81.2% CELLCO-PART - Cellco
Partnership
AS14654 291 14 277 95.2% WAYPORT - Wayport
AS16814 316 51 265 83.9% NSS S.A.
AS6198 505 242 263 52.1% BATI-MIA - BellSouth Network
Solutions, Inc
Total 18415 5236 13179 71.6% Top 30 total
Possible Bogus Routes
24.246.0.0/17 AS7018 ATT-INTERNET4 - AT&T WorldNet Services
24.246.128.0/18 AS7018 ATT-INTERNET4 - AT&T WorldNet Services
61.4.64.0/20 AS9929 CNCNET-CN China Netcom Corp.
64.17.32.0/24 AS13488 CBWU-13488 - Continental Broadband Florida, Inc DBA WebUnited
64.17.33.0/24 AS13488 CBWU-13488 - Continental Broadband Florida, Inc DBA WebUnited
64.17.37.0/24 AS13488 CBWU-13488 - Continental Broadband Florida, Inc DBA WebUnited
64.90.128.0/20 AS6971 ESCH - Eschelon Telecommunications, Inc.
66.11.32.0/20 AS6261 VISINET - Visionary Systems, Inc.
66.37.96.0/20 AS3764 IA-HOU-AS - Internet America, Inc.
66.51.134.0/24 AS29876 LNTC - Latency LLC
66.96.0.0/20 AS3770 WORLDPATH-AS - WorldPath Internet Services
66.117.8.0/24 AS174 COGENT Cogent/PSI
66.163.96.0/20 AS25767 WAVEFORM - Waveform Technology, LLC
66.187.96.0/24 AS10026 ANC Asia Netcom Corporation
66.187.108.0/24 AS10026 ANC Asia Netcom Corporation
66.187.109.0/24 AS10026 ANC Asia Netcom Corporation
66.235.158.0/23 AS7018 ATT-INTERNET4 - AT&T WorldNet Services
69.31.151.0/24 AS26627 AS-PILOSOFT - Pilosoft, Inc.
69.39.193.0/24 AS25973 MZIMA - Mzima Networks, Inc.
69.39.195.0/24 AS25973 MZIMA - Mzima Networks, Inc.
69.39.196.0/24 AS25973 MZIMA - Mzima Networks, Inc.
81.91.240.0/20 AS29668 QUBE Qube Networks Limited
89.240.0.0/14 AS13285 OPALTELECOM-AS Opal Telecom
91.192.0.0/16 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS Project.
91.255.248.0/21 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS Project.
125.213.0.0/16 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street
131.64.0.0/12 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
132.0.0.0/10 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
137.0.0.0/13 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
138.136.0.0/13 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
151.135.0.0/16 AS4763 TELSTRANZ-AS TelstraClear Ltd
158.0.0.0/13 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
163.142.0.0/16 AS2500 JPNIC-ASBLOCK-AP JPNIC
183.206.196.0/24 AS2188 FR-RENATER-ASTER Reseau Regional ASTER
192.30.93.0/24 AS17757 HPAUS-AP HP Australia
192.30.94.0/24 AS17757 HPAUS-AP HP Australia
192.40.105.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System
192.44.0.0/19 AS702 AS702 MCI EMEA - Commercial IP service provider in Europe
192.44.0.0/24 AS5501 FRAUNHOFER-CLUSTER-BW Fraunhofer Gesellschaft
192.69.107.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System
192.69.108.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System
192.69.177.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System
192.70.164.0/24 AS25689 NRCNET-AS - National Research Council of Canada
192.81.183.0/24 AS719 ELISA-AS Elisa Oyj
192.81.184.0/24 AS719 ELISA-AS Elisa Oyj
192.88.99.0/24 AS559 SWITCH SWITCH, Swiss Education and Research Network
192.96.36.0/24 AS5713 AFRINIC African Network Information Center
192.96.37.0/24 AS10474 AFRINIC African Network Information Center
192.96.135.0/24 AS2018 TENET - 1 - The Uninet Project
192.96.136.0/23 AS2018 TENET - 1 - The Uninet Project
192.96.140.0/24 AS2018 TENET - 1 - The Uninet Project
192.96.143.0/24 AS2018 TENET - 1 - The Uninet Project
192.96.145.0/24 AS2018 TENET - 1 - The Uninet Project
192.96.177.0/24 AS6083 AFRINIC African Network Information Center
192.96.250.0/24 AS2018 TENET - 1 - The Uninet Project
192.107.104.0/24 AS6458 GUATEL
192.122.212.0/24 AS209 ASN-QWEST - Qwest
192.124.252.0/22 AS680 DFN-IP DFN-IP service X-WiN
192.133.6.0/24 AS10282 EQUANT-CEEUR EQUANT AS for Central and Eastern Europe region
192.153.144.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
192.168.255.255/32 AS4637 REACH Reach Network Border AS
192.172.0.0/19 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
192.188.208.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
193.36.1.0/24 AS8220 COLT COLT Telecommunications
193.37.69.0/24 AS2856 BT-UK-AS BTnet UK Regional network
193.110.77.0/24 AS3356 LEVEL3 Level 3 Communications
193.110.78.0/24 AS3356 LEVEL3 Level 3 Communications
193.110.79.0/24 AS3356 LEVEL3 Level 3 Communications
194.31.227.0/24 AS21461 TRANSFAIRNET Transfair-net GmbH Krefeld
194.59.176.0/20 AS1273 CW Cable & Wireless
194.153.156.0/24 AS24865 KMITCHELL-AS Keith Mitchell's Network
194.246.72.0/23 AS8893 ARTFILES-AS Artfiles New Media GmbH
195.246.216.0/22 AS15622 MEOCOM old meocom Autonomous System
198.23.26.0/24 AS4390 BELLATLANTIC-COM - Bell Atlantic, Inc.
198.54.82.0/24 AS2018 TENET - 1 - The Uninet Project
198.54.92.0/24 AS2018 TENET - 1 - The Uninet Project
198.54.222.0/24 AS2018 TENET - 1 - The Uninet Project
198.54.249.0/24 AS2018 TENET - 1 - The Uninet Project
198.54.250.0/24 AS2018 TENET - 1 - The Uninet Project
198.54.251.0/24 AS2018 TENET - 1 - The Uninet Project
198.97.72.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
198.97.80.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
198.97.96.0/19 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
198.97.240.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
198.101.4.0/22 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
198.136.32.0/20 AS19329 MCNET - Martin County Board of County Commissioners
198.161.87.0/24 AS6539 GT-BELL - Bell Canada
198.163.155.0/24 AS684 MTSAL-ASN - MTS Allstream Inc.
198.167.0.0/16 AS7456 INTERHOP - Interhop Network SERVICES Inc.
198.168.0.0/16 AS701 ALTERNET-AS - UUNET Technologies, Inc.
198.169.0.0/16 AS803 SASKTEL - SaskTel
198.199.198.0/24 AS13671 VRIS-AS-BLOCK-13661-13675 - Verizon Internet Services Inc.
198.232.133.0/24 AS23075 SKOTOS-AS - Skotos Tech, Inc
199.9.128.0/17 AS668 ASN-ASNET-NET-AS - Defense Research and Engineering Network
199.10.0.0/16 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
199.60.0.0/20 AS271 BCNET-AS - University of British Columbia
199.114.0.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
199.114.128.0/18 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
199.114.130.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
199.114.132.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
199.114.134.0/24 AS3541 ITSDN-U4 - DISA/UNRRA
199.114.136.0/24 AS27044 DDN-ASNBLK1 - DoD Network Information Center
199.114.138.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
199.114.140.0/24 AS3544 ITSDN-U7 - DISA/UNRRA
199.114.142.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
199.114.144.0/24 AS27064 DDN-ASNBLK1 - DoD Network Information Center
199.114.148.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
199.114.150.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
199.114.152.0/24 AS27033 DDN-ASNBLK1 - DoD Network Information Center
199.114.153.0/24 AS27034 DDN-ASNBLK1 - DoD Network Information Center
199.114.154.0/24 AS3542 ITSDN-U5 - DISA/UNRRA
199.114.160.0/24 AS1733 CENTAF-SWA - AF DDN PMO
199.121.0.0/16 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
199.123.0.0/18 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
199.123.16.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
199.123.80.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
199.189.32.0/19 AS7332 IQUEST-AS - IQuest Internet
199.202.0.0/16 AS701 ALTERNET-AS - UUNET Technologies, Inc.
199.246.116.0/24 AS813 UUNET-AS1 - UUNET Technologies, Inc.
202.9.64.0/19 AS9290 TPN-AS-AP Smart Global Network (M) Sdn Bhd
202.45.159.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom
202.58.113.0/24 AS19161 INNOCOM-TELECOM - INNOCOM TELECOM
202.74.32.0/19 AS9315 CWN-AS-AP Chomanan WorldNet Co., Ltd.
202.86.252.0/22 AS9304 HUTCHISON-AS-AP Hutchison Global Communications
202.86.253.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications
202.86.254.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications
202.86.255.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications
202.90.33.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS
202.90.40.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS
202.90.41.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS
202.90.42.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS
202.90.43.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS
202.90.44.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS
202.93.0.0/20 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street
202.131.64.0/19 AS9381 NEWTT-IP-AP Wharf T&T Ltd.
202.148.32.0/20 AS17495 GATEWAY-AP BROADBAND WIRELESSS INTERNET SERVICE PROVIDER
203.13.171.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd
203.62.0.0/17 AS7575 AARNET-AS-AP Australian Academic and Reasearch Network (AARNet)
203.78.48.0/20 AS9299 IPG-AS-AP Philippine Long Distance Telephone Company
203.89.134.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom
203.89.139.0/24 AS17911 BRAINPK-AS-AP Brain Telecommunication Ltd.
203.89.143.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom
203.89.144.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom
203.89.147.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom
203.89.148.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom
203.89.149.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom
203.89.150.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom
203.89.151.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom
203.89.153.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom
203.89.158.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom
203.89.159.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom
203.99.142.0/24 AS9826 ILINK-HK-AP iLink.net Ltd
203.111.192.0/20 AS7473 SINGTEL-AS-AP Singapore Telecom
204.29.185.0/24 AS7268 ATHENET - Athenet Internet Services
204.48.118.0/23 AS29912 CITIZENS-PROPERTY-INSURANCE-CORPORATION - Citizens Property Insurance Corporation
204.48.119.0/24 AS29912 CITIZENS-PROPERTY-INSURANCE-CORPORATION - Citizens Property Insurance Corporation
204.154.125.0/24 AS3952 TELLABS-ASN - TELLABS Operations, Inc.
204.154.126.0/24 AS3952 TELLABS-ASN - TELLABS Operations, Inc.
204.154.127.0/24 AS3952 TELLABS-ASN - TELLABS Operations, Inc.
205.150.0.0/15 AS701 ALTERNET-AS - UUNET Technologies, Inc.
206.128.104.0/21 AS11709 VIC - VIRTUAL INTERACTIVE CENTER
206.167.57.0/24 AS376 RISQ-AS - Reseau Interordinateurs Scientique Quebecois (RISQ)
206.191.64.0/18 AS15290 ALLST-15290 - Allstream Corp. Corporation Allstream
206.191.96.0/19 AS15290 ALLST-15290 - Allstream Corp. Corporation Allstream
207.231.96.0/19 AS11194 NUNETPA - NuNet Inc
208.66.192.0/22 AS26780 MCCOLO - McColo Corporation
209.40.192.0/21 AS6487 CyberNet de Guatemala S.A.
209.40.200.0/21 AS6487 CyberNet de Guatemala S.A.
209.40.208.0/21 AS6487 CyberNet de Guatemala S.A.
209.40.216.0/21 AS6487 CyberNet de Guatemala S.A.
209.205.69.0/24 AS21578 Universidad autonoma de Bucaramanga
209.205.70.0/24 AS21578 Universidad autonoma de Bucaramanga
209.205.81.0/24 AS15066 SkyNet de Colombia S.A.
209.205.82.0/24 AS15066 SkyNet de Colombia S.A.
209.205.84.0/24 AS15066 SkyNet de Colombia S.A.
209.234.0.0/18 AS3845 STATE-NET - CS&W, Inc.
216.37.110.0/23 AS4264 CERNET-ASN-BLOCK - California Education and Research Federation Network
216.71.224.0/20 AS23527 COTELLIGENCE - Cotelligence, Inc.
216.96.128.0/18 AS7018 ATT-INTERNET4 - AT&T WorldNet Services
216.201.72.0/24 AS14709 Telefonica Moviles Panama S.A.
216.201.73.0/24 AS14709 Telefonica Moviles Panama S.A.
216.201.74.0/24 AS14709 Telefonica Moviles Panama S.A.
216.201.75.0/24 AS14709 Telefonica Moviles Panama S.A.
216.201.76.0/24 AS14709 Telefonica Moviles Panama S.A.
216.201.77.0/24 AS14709 Telefonica Moviles Panama S.A.
216.201.78.0/24 AS14709 Telefonica Moviles Panama S.A.
216.201.79.0/24 AS14709 Telefonica Moviles Panama S.A.
216.228.64.0/21 AS6295 WHIDBEY1 - Whidbey Internet Services
216.228.224.0/20 AS13674 VRIS-AS-BLOCK-13661-13675 - Verizon Internet Services Inc.
216.240.240.0/20 AS7018 ATT-INTERNET4 - AT&T WorldNet Services
216.240.242.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services
Please see http://www.cidr-report.org for the full report
------------------------------------
Copies of this report are mailed to:
nanog(a)merit.edu
eof-list(a)ripe.net
apops(a)apops.net
routing-wg(a)ripe.net
afnog(a)afnog.org
ausnog(a)ausnog.net
1
0
Updated agenda with new item F
A- Administrativia
- Minute taker
- Previous minutes
- Open actions
- New co-chair discussion (chairs, 5 min)
B- Update on Route Flap Damping obsoletion (Philip Smith, 5 min)
C- Update on Route Aggregation BCP (Joao Damas, Mike Hughes, 5 min)
D- Authorisation of "route:" objects in the DB (TBA, 15 min)
E- CoS enabled BGP (David Ward, 45 min)
F- routing authorization (Rudiger Volk, 15 min)
an example of requirements for different levels?
currently available kludges
G- Charter discussion (chairs, 15 min, or as time permits)
Z- Input from other working groups.
1
0
This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.
Daily listings are sent to bgp-stats(a)lists.apnic.net
If you have any comments please contact Philip Smith <pfs(a)cisco.com>.
Routing Table Report 04:00 +10GMT Sat 22 Apr, 2006
Analysis Summary
----------------
BGP routing table entries examined: 187104
Prefixes after maximum aggregation: 103330
Unique aggregates announced to Internet: 91523
Total ASes present in the Internet Routing Table: 21984
Origin-only ASes present in the Internet Routing Table: 19122
Origin ASes announcing only one prefix: 9094
Transit ASes present in the Internet Routing Table: 2862
Transit-only ASes present in the Internet Routing Table: 61
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 29
Prefixes from unregistered ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1509815456
Equivalent to 89 /8s, 253 /16s and 244 /24s
Percentage of available address space announced: 40.7
Percentage of allocated address space announced: 60.1
Percentage of available address space allocated: 67.8
Total number of prefixes smaller than registry allocations: 92315
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 39292
Total APNIC prefixes after maximum aggregation: 16461
Prefixes being announced from the APNIC address blocks: 37000
Unique aggregates announced from the APNIC address blocks: 18194
APNIC Region origin ASes present in the Internet Routing Table: 2545
APNIC Region origin ASes announcing only one prefix: 718
APNIC Region transit ASes present in the Internet Routing Table: 393
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 222429920
Equivalent to 13 /8s, 66 /16s and 2 /24s
Percentage of available APNIC address space announced: 69.5
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911
APNIC Address Blocks 58/7, 60/7, 121/8, 122/7, 124/7, 126/8, 202/7
210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 97380
Total ARIN prefixes after maximum aggregation: 57484
Prefixes being announced from the ARIN address blocks: 76450
Unique aggregates announced from the ARIN address blocks: 29408
ARIN Region origin ASes present in the Internet Routing Table: 10646
ARIN Region origin ASes announcing only one prefix: 3990
ARIN Region transit ASes present in the Internet Routing Table: 987
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 26
Number of ARIN addresses announced to Internet: 295772672
Equivalent to 17 /8s, 161 /16s and 34 /24s
Percentage of available ARIN address space announced: 73.5
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/6, 74/7, 76/8,
198/7, 204/6, 208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 37242
Total RIPE prefixes after maximum aggregation: 24873
Prefixes being announced from the RIPE address blocks: 34282
Unique aggregates announced from the RIPE address blocks: 23106
RIPE Region origin ASes present in the Internet Routing Table: 7902
RIPE Region origin ASes announcing only one prefix: 4119
RIPE Region transit ASes present in the Internet Routing Table: 1299
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 245870016
Equivalent to 14 /8s, 167 /16s and 173 /24s
Percentage of available RIPE address space announced: 73.3
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
RIPE Address Blocks 62/8, 80/5, 88/6, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 11058
Total LACNIC prefixes after maximum aggregation: 3610
Prefixes being announced from the LACNIC address blocks: 9199
Unique aggregates announced from the LACNIC address blocks: 5411
LACNIC Region origin ASes present in the Internet Routing Table: 680
LACNIC Region origin ASes announcing only one prefix: 221
LACNIC Region transit ASes present in the Internet Routing Table: 129
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 29
Number of LACNIC addresses announced to Internet: 26513152
Equivalent to 1 /8s, 148 /16s and 143 /24s
Percentage of available LACNIC address space announced: 39.5
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 189/8, 190/8, 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 2127
Total AfriNIC prefixes after maximum aggregation: 902
Prefixes being announced from the AfriNIC address blocks: 1460
Unique aggregates announced from the AfriNIC address blocks: 955
AfriNIC Region origin ASes present in the Internet Routing Table: 152
AfriNIC Region origin ASes announcing only one prefix: 46
AfriNIC Region transit ASes present in the Internet Routing Table: 25
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 13
Number of AfriNIC addresses announced to Internet: 4043776
Equivalent to 0 /8s, 61 /16s and 180 /24s
Percentage of available AfriNIC address space announced: 12.1
AfriNIC AS Blocks 36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 1081 7069 217 CHINANET-BACKBONE
9583 890 109 16 Sify Limited
4755 766 257 67 Videsh Sanchar Nigam Ltd. Aut
4766 681 4436 304 Korea Telecom (KIX)
1221 621 1557 475 Telstra Pty Ltd
9498 571 212 72 BHARTI BT INTERNET LTD.
7545 527 108 69 TPG Internet Pty Ltd
17488 501 31 7 Hathway IP Over Cable Interne
17676 484 6997 107 Softbank BB Corp.
9443 450 110 81 Primus Telecommunications
4802 382 81 176 Wantree Development
18101 340 69 18 Reliance Infocom Ltd Internet
17849 339 22 114 Telecommunications Technology
2907 336 1749 312 SINET Japan
9929 322 221 57 China Netcom Corp.
17557 317 27 161 Pakistan Telecom
17974 308 120 27 PT TELEKOMUNIKASI INDONESIA
7474 296 210 228 SingTel Optus Pty Ltd
9800 270 410 67 CHINA UNICOM
9837 265 77 161 Powertel Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1507 6254 979 AT&T WorldNet Services
4323 1264 733 251 Time Warner Telecom
6197 1010 618 475 BellSouth Network Solutions,
721 1008 21961 305 DLA Systems Automation Center
174 962 5787 910 Cogent Communications
19029 946 151 111 New Edge Networks
701 935 8031 777 UUNET Technologies, Inc.
18566 935 272 8 Covad Communications
2386 878 537 670 AT&T Data Communications Serv
1239 849 2804 603 Sprint
209 718 3615 560 Qwest
19262 686 1990 163 Verizon Global Networks
20115 681 596 363 Charter Communications
22773 648 1735 40 Cox Communications, Inc.
7011 631 217 412 Citizens Utilities
11492 627 86 20 Cable One
6198 592 534 236 BellSouth Network Solutions,
852 582 1085 384 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 553 244 63 Canadian Research Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 579 1951 455 UUNET - Commercial IP service
3352 309 1596 32 Ibernet, Internet Access Netw
3301 308 1071 292 TeliaNet Sweden
8220 293 474 271 COLT Telecommunications
3320 287 3989 238 Deutsche Telekom AG
680 245 2025 242 DFN-IP service G-WiN
3246 232 504 222 Song Networks
6746 228 89 202 Dynamic Network Technologies,
8708 218 276 201 Romania Data Systems S.A.
24863 207 40 9 LINKdotNET AS number
8551 202 198 24 Bezeq International
1257 196 710 171 SWIPnet Swedish IP Network
3269 195 2070 74 TELECOM ITALIA
3215 194 1630 92 France Telecom Transpac
8866 177 37 15 Bulgarian Telecommunication C
786 171 1778 171 The JANET IP Service
5400 171 363 140 BT Ignite European Backbone
9121 168 931 27 TTnet Autonomous System
6830 167 765 35 UPC Distribution Services
30890 163 15 61 SC Kappa Invexim SRL
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 696 1067 227 UniNet S.A. de C.V.
22047 408 158 11 VTR PUNTO NET S.A.
11172 322 110 84 Servicios Alestra S.A de C.V
16814 314 20 8 NSS, S.A.
14117 189 12 6 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
7303 159 75 20 Telecom Argentina Stet-France
6147 153 124 23 Telefonica Del Peru
21826 133 16 21 INTERCABLE
5639 132 12 9 Telecommunications Services o
11556 132 80 4 Cable-Wireless Panama
19169 125 8 28 Telconet
6503 122 149 75 AVANTEL, S.A.
14259 114 10 12 GTD Internet S.A.
23216 107 21 8 RAMtelecom Telecomunicaciones
6505 106 88 78 Global One Communicaoes Ltda
7910 105 7 10 ANDINET ON LINE
19429 102 57 43 E.T.B.
18822 97 6 8 TELEFONICA MANQUEHUE
7315 96 6 3 Grupo Rey Moreno
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 278 803 233 The Internet Solution
8452 169 60 7 TEDATA
6713 145 135 11 Itissalat Al-MAGHRIB
2018 123 314 104 Tertiary Education Network
5536 121 8 18 Internet Egypt Network
24835 118 50 7 RAYA Telecom - Egypt
33783 93 6 12 EEPAD TISP TELECOM & INTERNET
2905 74 155 67 The Internetworking Company o
15475 65 84 4 Nile Online
20928 57 16 2 Noor Advanced Technologies AS
12455 43 6 6 Jambonet Autonomous system
5713 39 294 35 Telkom SA Ltd
15706 31 8 3 Sudatel Internet Exchange Aut
33774 29 7 20 AS Number for Telecom Algeria
23889 26 8 11 MAURITIUS TELECOM
8524 24 1 4 AUCEGYPT Autonomous System
16637 24 14 22 Johnnic e-Ventures
10798 22 1 13 Standard Bank of South Africa
2561 19 6 2 Egyptian Universities Network
21491 19 17 2 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1264 1013 Time Warner Telecom
18566 935 927 Covad Communications
9583 890 874 Sify Limited
4134 1081 864 CHINANET-BACKBONE
19029 946 835 New Edge Networks
721 1008 703 DLA Systems Automation Center
4755 766 699 Videsh Sanchar Nigam Ltd. Aut
22773 648 608 Cox Communications, Inc.
11492 627 607 Cable One
6197 1010 535 BellSouth Network Solutions,
19262 686 523 Verizon Global Networks
19916 563 509 OLM LLC
5668 535 505 CenturyTel Internet Holdings,
9498 571 499 BHARTI BT INTERNET LTD.
17488 501 494 Hathway IP Over Cable Interne
855 553 490 Canadian Research Network
8151 696 469 UniNet S.A. de C.V.
7545 527 458 TPG Internet Pty Ltd
7757 477 458 AT&T Broadband
3602 538 429 Sprint Canada, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65241 PRIVATE 65.90.71.0/24 10794 Bank of America
65005 PRIVATE 159.153.148.0/22 24989 IX Europe Frankfurt
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
64624 PRIVATE 204.114.220.0/24 18113 Pfizer Pte Ltd Singa
64624 PRIVATE 204.114.221.0/24 18113 Pfizer Pte Ltd Singa
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
121.128.0.0/11 4766 Korea Telecom (KIX)
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
158.0.0.0/13 721 DLA Systems Automation Center
183.206.196.0/24 2188 FR-RENATER-ASTER
192.44.0.0/24 5501 Fraunhofer Gesellschaft
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.172.0.0/19 721 DLA Systems Automation Center
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:17 /9:9 /10:9 /11:28 /12:88
/13:198 /14:358 /15:698 /16:8795 /17:3181 /18:5235
/19:11561 /20:13040 /21:11270 /22:14474 /23:15542 /24:101557
/25:372 /26:252 /27:221 /28:63 /29:70 /30:34
/31:0 /32:32
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 918 935 Covad Communications
19029 881 946 New Edge Networks
6197 798 1010 BellSouth Network Solutions,
7018 795 1507 AT&T WorldNet Services
9583 719 890 Sify Limited
11492 618 627 Cable One
4323 607 1264 Time Warner Telecom
2386 598 878 AT&T Data Communications Serv
19916 557 563 OLM LLC
7011 540 631 Citizens Utilities
4766 491 681 Korea Telecom (KIX)
7757 459 477 AT&T Broadband
6198 443 592 BellSouth Network Solutions,
855 428 553 Canadian Research Network
5668 416 535 CenturyTel Internet Holdings,
1239 378 849 Sprint
15270 374 405 PaeTec.net -a division of Pae
702 360 579 UUNET - Commercial IP service
6517 355 384 Yipes Communications, Inc.
8151 340 696 UniNet S.A. de C.V.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:40 12:1627 13:1 15:12 16:3
17:3 18:4 20:43 24:882 25:1 30:2
32:66 38:211 40:54 44:3 47:6 52:4
55:1 56:3 57:31 58:145 59:195 60:174
61:829 62:765 63:1925 64:3124 65:2235 66:3065
67:630 68:684 69:1479 70:337 71:76 72:696
73:23 74:29 80:775 81:629 82:617 83:384
84:378 85:523 86:346 87:318 88:72 89:148
124:224 125:368 128:161 129:176 130:107 131:317
132:31 133:8 134:160 135:46 136:177 137:71
138:198 139:66 140:463 141:134 142:388 143:161
144:225 145:42 146:325 147:134 148:322 149:186
150:114 151:81 152:64 153:107 154:6 155:196
156:96 157:142 158:165 159:171 160:87 161:73
162:253 163:145 164:179 165:192 166:163 167:245
168:477 169:134 170:331 171:12 172:1 183:1
190:95 192:5765 193:3363 194:2587 195:1819 196:851
198:3868 199:3238 200:4352 201:852 202:6596 203:6805
204:3877 205:2094 206:2417 207:2931 208:2050 209:3842
210:1938 211:700 212:1254 213:1470 214:341 215:41
216:4123 217:1170 218:261 219:181 220:646 221:357
222:147
End of report
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