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- 1 participants
- 4461 discussions
This report has been generated at Fri Mar 14 21:45:21 2003 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
07-03-03 120289 86148
08-03-03 120272 86188
09-03-03 120197 86257
10-03-03 120223 86324
11-03-03 120475 86388
12-03-03 120508 86345
13-03-03 120478 86334
14-03-03 120659 86376
AS Summary
14740 Number of ASes in routing system
5812 Number of ASes announcing only one prefix
1562 Largest number of prefixes announced by an AS
AS701 : ALTERNET-AS UUNET Technologies, Inc.
73048064 Largest address span announced by an AS (/32s)
AS568 : SUMNET-AS DISO-UNRRA
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').
--- 14Mar03 ---
ASnum NetsNow NetsAggr NetGain % Gain Description
Table 120741 86391 34350 28.4% All ASes
AS3908 1097 537 560 51.0% SUPERNETASBLK SuperNet, Inc.
AS18566 518 25 493 95.2% COVAD Covad Communications
AS701 1562 1129 433 27.7% ALTERNET-AS UUNET
Technologies, Inc.
AS4151 535 109 426 79.6% USDA-1 USDA
AS7843 600 217 383 63.8% ADELPHIA-AS Adelphia Corp.
AS4323 555 173 382 68.8% TW-COMM Time Warner
Communications, Inc.
AS7018 1372 1021 351 25.6% ATT-INTERNET4 AT&T WorldNet
Services
AS6197 499 160 339 67.9% BATI-ATL BellSouth Network
Solutions, Inc
AS1221 1101 805 296 26.9% ASN-TELSTRA Telstra Pty Ltd
AS1239 974 690 284 29.2% SPRINTLINK Sprint
AS22927 295 14 281 95.3% AR-TEAR2-LACNIC TELEFONICA DE
ARGENTINA
AS4355 391 119 272 69.6% ERMS-EARTHLNK EARTHLINK, INC
AS705 449 195 254 56.6% ASN-ALTERNET UUNET
Technologies, Inc.
AS6198 451 200 251 55.7% BATI-MIA BellSouth Network
Solutions, Inc
AS4814 264 15 249 94.3% CHINANET-BEIJING-AP China
Telecom (Group)
AS1 656 431 225 34.3% GNTY-1 Genuity
AS17676 230 27 203 88.3% GIGAINFRA XTAGE CORPORATION
AS2386 480 280 200 41.7% INS-AS AT&T Data
Communications Services
AS6347 370 171 199 53.8% DIAMOND SAVVIS Communications
Corporation
AS22291 242 45 197 81.4% CHARTER-LA Charter
Communications
AS4134 309 115 194 62.8% CHINANET-BACKBONE
No.31,Jin-rong Street
AS690 503 313 190 37.8% MERIT-AS-27 Merit Network Inc.
AS209 530 341 189 35.7% ASN-QWEST Qwest
AS27364 258 84 174 67.4% ACS-INTERNET Armstrong Cable
Services
AS2048 258 87 171 66.3% LANET-1 State of Louisiana
AS17557 370 212 158 42.7% PKTELECOM-AS-AP Pakistan
Telecom
AS6140 292 140 152 52.1% IMPSAT-USA ImpSat
AS22773 184 33 151 82.1% CCINET-2 Cox Communications
Inc. Atlanta
AS6327 187 40 147 78.6% SHAWFIBER Shaw Fiberlink
Limited
AS7303 242 98 144 59.5% AR-TAST-LACNIC Telecom
Argentina Stet-France Telecom
S.A.
Total 15774 7826 7948 50.4% Top 30 total
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
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
For a graphical representation, please see http://www.apnic.net/stats/bgp.
If you have any comments please contact Philip Smith <pfs(a)cisco.com>.
Routing Table Report 20:00 +10GMT Fri 14 Mar, 2003
Analysis Summary
----------------
BGP routing table entries examined: 122691
Prefixes after maximum aggregation: 77882
Unique aggregates announced to Internet: 59156
Total ASes present in the Internet Routing Table: 14794
Origin-only ASes present in the Internet Routing Table: 12844
Origin ASes announcing only one prefix: 5802
Transit ASes present in the Internet Routing Table: 1950
Transit-only ASes present in the Internet Routing Table: 63
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 17
Illegal AS announcements present in the Routing Table: 11
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 19
Number of addresses announced to Internet: 1200324997
Equivalent to 71 /8s, 139 /16s and 129 /24s
Percentage of available address space announced: 32.4
Percentage of allocated address space announced: 58.4
Percentage of available address space allocated: 55.5
Total number of prefixes smaller than registry allocations: 57483
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20728
Total APNIC prefixes after maximum aggregation: 12168
Prefixes being announced from the APNIC address blocks: 19176
Unique aggregates announced from the APNIC address blocks: 11712
APNIC Region origin ASes present in the Internet Routing Table: 1752
APNIC Region origin ASes announcing only one prefix: 520
APNIC Region transit ASes present in the Internet Routing Table: 291
Average APNIC Region AS path length visible: 5.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 107177632
Equivalent to 6 /8s, 99 /16s and 102 /24s
Percentage of available APNIC address space announced: 56.8
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 61/8, 202/7, 210/7, 218/7 and 220/6
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 75400
Total ARIN prefixes after maximum aggregation: 47895
Prefixes being announced from the ARIN address blocks: 53746
Unique aggregates announced from the ARIN address blocks: 16847
ARIN Region origin ASes present in the Internet Routing Table: 8215
ARIN Region origin ASes announcing only one prefix: 2774
ARIN Region transit ASes present in the Internet Routing Table: 783
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 187492544
Equivalent to 11 /8s, 44 /16s and 232 /24s
Percentage of available ARIN address space announced: 69.8
ARIN AS Blocks 1 - 1876, 1902 - 2042, 2044 - 2046, 2048 - 2106
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
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 199/8, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 21250
Total RIPE prefixes after maximum aggregation: 15599
Prefixes being announced from the RIPE address blocks: 17757
Unique aggregates announced from the RIPE address blocks: 11851
RIPE Region origin ASes present in the Internet Routing Table: 4436
RIPE Region origin ASes announcing only one prefix: 2422
RIPE Region transit ASes present in the Internet Routing Table: 800
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 127895552
Equivalent to 7 /8s, 159 /16s and 136 /24s
Percentage of available RIPE address space announced: 76.2
RIPE AS Blocks 1877 - 1901, 2043, 2047, 2107 - 2136, 2585 - 2614
2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631
6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383
20480 - 21503, 24576 - 25599, 28672 - 29695
RIPE Address Blocks 62/8, 80/7, 82/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5303
Total LACNIC prefixes after maximum aggregation: 2220
Prefixes being announced from the LACNIC address blocks: 4681
Unique aggregates announced from the LACNIC address blocks: 3037
LACNIC Region origin ASes present in the Internet Routing Table: 330
LACNIC Region origin ASes announcing only one prefix: 86
LACNIC Region transit ASes present in the Internet Routing Table: 66
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 12343552
Equivalent to 0 /8s, 188 /16s and 89 /24s
Percentage of available LACNIC address space announced: 73.6
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1097 1106 801 Telstra Pty Ltd
703 404 370 313 UUNET
2907 387 1959 366 SINET Japan
17557 367 26 141 Pakistan Telecom
2764 324 340 291 connect.com.au pty ltd
4134 309 2662 98 Data Communications Bureau
7474 306 275 207 Optus Communications Pty Ltd
4814 264 79 15 China Telecom (Group)
3786 249 772 211 DACOM Corporation
17676 232 3574 24 XTAGE CORPORATION
4755 230 133 74 Videsh Sanchar Nigam Ltd. Aut
9583 217 33 13 Satyam Infoway Ltd.,
4766 206 2074 155 Korea Internet Exchange for "
9443 179 57 77 Primus Telecommunications
9800 166 205 41 CHINA UNICOM
4765 152 10 14 World Net & Services Co., Ltd
9238 138 8 17 TATA ISP
4716 128 733 122 TTnet
4739 128 57 116 Commerical Internet eXchange
7539 127 164 120 TANet2, sponsored by NSC, TAI
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1571 8855 1128 UUNET Technologies, Inc.
7018 1374 7149 954 AT&T
3908 1263 1590 490 Supernet, Inc.
1239 980 3153 694 Sprint
1 663 8088 432 GENUITY
7843 603 413 190 Adelphia Corp.
4323 556 490 172 Time Warner Communications, I
852 553 1107 435 Telus Advanced Communications
4151 534 691 59 USDA
209 532 2091 340 Qwest
18566 518 119 10 Covad Communications
690 503 73 313 Merit Network
6197 493 559 115 BellSouth Network Solutions,
3561 492 2303 338 Cable & Wireless USA
7066 490 204 254 Virginia Polytechnic Institut
2386 480 479 242 AT&T Data Communications Serv
705 449 165 195 UUNET Technologies, Inc.
6198 449 196 196 BellSouth Network Solutions,
3549 405 695 309 Global Crossing
20115 393 166 262 Charter Communications
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 786 2234 650 UUNET - Commercial IP service
3301 314 1143 304 TeliaNet Sweden
3215 307 818 172 France Telecom Transpac
3320 266 1996 229 Deutsche Telekom AG
680 232 2054 229 DFN-IP service G-WiN
1257 219 370 196 SWIPnet Swedish IP Network
5400 219 78 102 BT Ignite European Backbone
719 202 307 125 LANLINK autonomous system
5515 186 779 160 Sonera Solution Autonomous Sy
786 179 1874 179 The JANET IP Service
8708 153 42 150 Romania Data Systems S.A.
20858 147 17 3 This AS will be used to conne
3303 145 517 144 Swisscom Ltd
8220 128 182 119 COLT Internet - International
12302 123 18 30 MobiFon S.A.
2856 118 1298 108 BTnet UK Regional network
3269 110 750 60 TELECOM ITALIA
3233 108 11 12 RNC - Romanian Natioanal R&D
3246 105 360 102 Song Networks
3352 101 670 31 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 292 98 105 ImpSat
7303 242 36 56 Telecom Argentina Stet-France
8151 215 341 117 UniNet S.A. de C.V.
11172 161 66 33 Servicios Alestra S.A de C.V
6503 158 191 110 AVANTEL, S.A.
16814 139 9 18 NSS, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
11340 110 3 38 Red Universitaria Nacional
10620 107 7 31 TVCABLE BOGOTA
6147 76 62 20 Telefonica Del Peru
1916 75 306 45 Fundacao de Amparo a Pesquisa
11992 74 8 35 Integrated Systems
8065 73 6 18 Empresas Publicas de Medellin
6535 72 5 23 Chilesat Servicios Empresari
15311 71 27 36 Telefonica Empresas
4270 69 18 10 Red de Interconexion Universi
7984 66 11 42 Global One Colombia
7080 64 4 1 Electronica y Comunicaciones
7927 64 5 39 Global One Venezuela
11830 61 5 20 Instituto Costarricense de El
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1263 773 Supernet, Inc.
18566 518 508 Covad Communications
4151 534 475 USDA
7018 1374 420 AT&T
7843 603 413 Adelphia Corp.
4323 556 384 Time Warner Communications, I
6197 493 378 BellSouth Network Solutions,
11492 321 317 Cable One
1221 1097 296 Telstra Pty Ltd
6347 371 291 SAVVIS Communications Corpora
1239 980 286 Sprint
22927 295 281 TELEFONICA DE ARGENTINA
4355 391 279 EarthLink, Inc.
705 449 254 UUNET Technologies, Inc.
6198 449 253 BellSouth Network Solutions,
4814 264 249 China Telecom (Group)
27364 258 240 Armstrong Cable Services
2386 480 238 AT&T Data Communications Serv
7066 490 236 Virginia Polytechnic Institut
1 663 231 GENUITY
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p
64521 PRIVATE 198.189.23.0/24 2151 California State Uni
64521 PRIVATE 198.189.24.0/24 2151 California State Uni
64524 PRIVATE 198.189.134.0/24 2151 California State Uni
64524 PRIVATE 198.189.135.0/24 2151 California State Uni
64524 PRIVATE 198.189.136.0/24 2151 California State Uni
64524 PRIVATE 198.189.137.0/24 2151 California State Uni
64524 PRIVATE 198.189.138.0/24 2151 California State Uni
64521 PRIVATE 198.189.158.0/24 2151 California State Uni
64521 PRIVATE 198.189.235.0/24 2151 California State Uni
64521 PRIVATE 198.189.236.0/24 2151 California State Uni
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
132.0.0.0/10 568 DISO-UNRRA
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
158.0.0.0/13 568 DISO-UNRRA
192.44.0.0/19 702 UUNET - Commercial IP service
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.136.79.0/24 719 LANLINK autonomous system
192.136.135.0/24 1239 Sprint
192.153.136.0/21 568 DISO-UNRRA
192.156.164.0/24 19548 Adelphia Business Solutions
192.158.249.0/24 27319 INTERNET SOFTWARE CONSORTIUM,
192.172.0.0/19 568 DISO-UNRRA
192.243.36.0/23 2044 AUSNet, Inc.
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:17 /9:3 /10:8 /11:13 /12:46
/13:89 /14:238 /15:448 /16:7343 /17:1609 /18:2908
/19:8230 /20:8163 /21:5852 /22:8860 /23:10607 /24:67496
/25:167 /26:193 /27:109 /28:87 /29:63 /30:78
/31:4 /32:60
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 832 1263 Supernet, Inc.
18566 513 518 Covad Communications
702 490 786 UUNET - Commercial IP service
7018 478 1374 AT&T
690 452 503 Merit Network
701 451 1571 UUNET Technologies, Inc.
7066 389 490 Virginia Polytechnic Institut
1239 369 980 Sprint
6197 362 493 BellSouth Network Solutions,
7843 361 603 Adelphia Corp.
6198 359 449 BellSouth Network Solutions,
11492 320 321 Cable One
22927 294 295 TELEFONICA DE ARGENTINA
2386 280 480 AT&T Data Communications Serv
6140 279 292 ImpSat
20115 269 393 Charter Communications
27364 250 258 Armstrong Cable Services
7303 241 242 Telecom Argentina Stet-France
3215 232 307 France Telecom Transpac
209 220 532 Qwest
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:659 13:1 15:4 17:2 20:10 24:911
25:1 32:90 34:1 38:60 40:18 44:2
55:1 57:15 61:452 62:497 63:1927 64:1440
65:1918 66:1551 67:218 68:294 69:56 80:330
81:98 128:98 129:224 130:42 131:83 132:11
133:11 134:146 135:4 136:114 137:116 138:106
139:65 140:145 141:124 142:94 143:47 144:93
145:18 146:264 147:86 148:272 149:73 150:43
151:113 152:253 153:51 154:2 155:108 156:43
157:45 158:123 159:139 160:35 161:60 162:126
163:86 164:304 165:136 166:74 167:319 168:394
169:55 170:308 171:9 192:5301 193:2393 194:2004
195:983 196:475 198:3606 199:3223 200:2896 202:3670
203:5100 204:3075 205:2020 206:2405 207:2419 208:2677
209:2797 210:739 211:327 212:974 213:768 214:21
215:21 216:3235 217:605 218:83 219:9 220:52
End of report
1
0
This report has been generated at Fri Mar 7 21:46:45 2003 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
28-02-03 119708 85685
01-03-03 119794 85736
02-03-03 119902 85774
03-03-03 119905 85881
04-03-03 120066 86042
05-03-03 120121 86071
06-03-03 120244 86209
07-03-03 120289 86173
AS Summary
14703 Number of ASes in routing system
5787 Number of ASes announcing only one prefix
1586 Largest number of prefixes announced by an AS
AS701 : ALTERNET-AS UUNET Technologies, Inc.
72916992 Largest address span announced by an AS (/32s)
AS568 : SUMNET-AS DISO-UNRRA
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').
--- 07Mar03 ---
ASnum NetsNow NetsAggr NetGain % Gain Description
Table 120335 86155 34180 28.4% All ASes
AS3908 1085 567 518 47.7% SUPERNETASBLK SuperNet, Inc.
AS18566 507 9 498 98.2% COVAD Covad Communications
AS701 1586 1146 440 27.7% ALTERNET-AS UUNET
Technologies, Inc.
AS4151 532 106 426 80.1% USDA-1 USDA
AS4323 537 170 367 68.3% TW-COMM Time Warner
Communications, Inc.
AS7843 590 232 358 60.7% ADELPHIA-AS Adelphia Corp.
AS7018 1380 1024 356 25.8% ATT-INTERNET4 AT&T WorldNet
Services
AS6197 498 157 341 68.5% BATI-ATL BellSouth Network
Solutions, Inc
AS1221 1113 809 304 27.3% ASN-TELSTRA Telstra Pty Ltd
AS1239 973 691 282 29.0% SPRINTLINK Sprint
AS4355 401 120 281 70.1% ERMS-EARTHLNK EARTHLINK, INC
AS22927 295 14 281 95.3% AR-TEAR2-LACNIC TELEFONICA DE
ARGENTINA
AS705 450 196 254 56.4% ASN-ALTERNET UUNET
Technologies, Inc.
AS4814 263 15 248 94.3% CHINANET-BEIJING-AP China
Telecom (Group)
AS6198 450 203 247 54.9% BATI-MIA BellSouth Network
Solutions, Inc
AS1 662 436 226 34.1% GNTY-1 Genuity
AS22291 243 31 212 87.2% CHARTER-LA Charter
Communications
AS27364 240 29 211 87.9% ACS-INTERNET Armstrong Cable
Services
AS17676 230 26 204 88.7% GIGAINFRA XTAGE CORPORATION
AS2386 483 282 201 41.6% INS-AS AT&T Data
Communications Services
AS4134 304 113 191 62.8% CHINANET-BACKBONE
No.31,Jin-rong Street
AS209 532 342 190 35.7% ASN-QWEST Qwest
AS690 500 310 190 38.0% MERIT-AS-27 Merit Network Inc.
AS6347 370 190 180 48.6% DIAMOND SAVVIS Communications
Corporation
AS2048 259 87 172 66.4% LANET-1 State of Louisiana
AS17557 359 206 153 42.6% PKTELECOM-AS-AP Pakistan
Telecom
AS7303 240 90 150 62.5% AR-TAST-LACNIC Telecom
Argentina Stet-France Telecom
S.A.
AS22773 182 32 150 82.4% CCINET-2 Cox Communications
Inc. Atlanta
AS6140 284 136 148 52.1% IMPSAT-USA ImpSat
AS11492 322 174 148 46.0% CABLEONE CABLE ONE
Total 15870 7943 7927 49.9% Top 30 total
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
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
For a graphical representation, please see http://www.apnic.net/stats/bgp.
If you have any comments please contact Philip Smith <pfs(a)cisco.com>.
Routing Table Report 20:00 +10GMT Fri 07 Mar, 2003
Analysis Summary
----------------
BGP routing table entries examined: 122334
Prefixes after maximum aggregation: 77814
Unique aggregates announced to Internet: 58981
Total ASes present in the Internet Routing Table: 14766
Origin-only ASes present in the Internet Routing Table: 12811
Origin ASes announcing only one prefix: 5791
Transit ASes present in the Internet Routing Table: 1955
Transit-only ASes present in the Internet Routing Table: 66
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 17
Illegal AS announcements present in the Routing Table: 11
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 17
Number of addresses announced to Internet: 1199996293
Equivalent to 71 /8s, 134 /16s and 125 /24s
Percentage of available address space announced: 32.4
Percentage of allocated address space announced: 58.3
Percentage of available address space allocated: 55.5
Total number of prefixes smaller than registry allocations: 57285
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20595
Total APNIC prefixes after maximum aggregation: 12127
Prefixes being announced from the APNIC address blocks: 19075
Unique aggregates announced from the APNIC address blocks: 11688
APNIC Region origin ASes present in the Internet Routing Table: 1747
APNIC Region origin ASes announcing only one prefix: 523
APNIC Region transit ASes present in the Internet Routing Table: 293
Average APNIC Region AS path length visible: 5.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 106802592
Equivalent to 6 /8s, 93 /16s and 173 /24s
Percentage of available APNIC address space announced: 56.6
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 61/8, 202/7, 210/7, 218/7 and 220/6
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 75239
Total ARIN prefixes after maximum aggregation: 47925
Prefixes being announced from the ARIN address blocks: 53478
Unique aggregates announced from the ARIN address blocks: 16726
ARIN Region origin ASes present in the Internet Routing Table: 8213
ARIN Region origin ASes announcing only one prefix: 2776
ARIN Region transit ASes present in the Internet Routing Table: 782
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 187715776
Equivalent to 11 /8s, 48 /16s and 80 /24s
Percentage of available ARIN address space announced: 69.9
ARIN AS Blocks 1 - 1876, 1902 - 2042, 2044 - 2046, 2048 - 2106
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
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 199/8, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 21209
Total RIPE prefixes after maximum aggregation: 15553
Prefixes being announced from the RIPE address blocks: 17705
Unique aggregates announced from the RIPE address blocks: 11827
RIPE Region origin ASes present in the Internet Routing Table: 4412
RIPE Region origin ASes announcing only one prefix: 2407
RIPE Region transit ASes present in the Internet Routing Table: 803
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 127701760
Equivalent to 7 /8s, 156 /16s and 147 /24s
Percentage of available RIPE address space announced: 76.1
RIPE AS Blocks 1877 - 1901, 2043, 2047, 2107 - 2136, 2585 - 2614
2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631
6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383
20480 - 21503, 24576 - 25599, 28672 - 29695
RIPE Address Blocks 62/8, 80/7, 82/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5281
Total LACNIC prefixes after maximum aggregation: 2209
Prefixes being announced from the LACNIC address blocks: 4661
Unique aggregates announced from the LACNIC address blocks: 3034
LACNIC Region origin ASes present in the Internet Routing Table: 330
LACNIC Region origin ASes announcing only one prefix: 85
LACNIC Region transit ASes present in the Internet Routing Table: 67
Average LACNIC Region AS path length visible: 5.8
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 12217856
Equivalent to 0 /8s, 186 /16s and 110 /24s
Percentage of available LACNIC address space announced: 72.8
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1108 1119 804 Telstra Pty Ltd
703 402 369 313 UUNET
2907 387 1960 366 SINET Japan
17557 359 26 133 Pakistan Telecom
2764 326 341 293 connect.com.au pty ltd
4134 304 2637 96 Data Communications Bureau
7474 303 275 206 Optus Communications Pty Ltd
4814 263 79 15 China Telecom (Group)
3786 242 773 207 DACOM Corporation
4755 234 133 73 Videsh Sanchar Nigam Ltd. Aut
17676 232 3574 24 XTAGE CORPORATION
9583 217 33 13 Satyam Infoway Ltd.,
4766 208 2074 155 Korea Internet Exchange for "
9443 178 57 76 Primus Telecommunications
9800 166 205 41 CHINA UNICOM
4765 152 10 14 World Net & Services Co., Ltd
9238 138 8 17 TATA ISP
4739 128 57 116 Commerical Internet eXchange
4716 127 733 121 TTnet
9768 125 384 64 Korea Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1598 8874 1148 UUNET Technologies, Inc.
7018 1382 7166 957 AT&T
3908 1247 1590 485 Supernet, Inc.
1239 979 3153 692 Sprint
1 670 8088 438 GENUITY
7843 593 408 207 Adelphia Corp.
852 576 1107 443 Telus Advanced Communications
4323 538 473 169 Time Warner Communications, I
209 534 2092 341 Qwest
4151 532 691 59 USDA
690 508 74 317 Merit Network
18566 507 116 9 Covad Communications
3561 498 2304 344 Cable & Wireless USA
6197 498 555 114 BellSouth Network Solutions,
7066 484 204 254 Virginia Polytechnic Institut
2386 483 479 244 AT&T Data Communications Serv
705 450 165 196 UUNET Technologies, Inc.
6198 448 196 199 BellSouth Network Solutions,
3549 401 694 307 Global Crossing
4355 401 308 112 EarthLink, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 789 2233 652 UUNET - Commercial IP service
3301 315 1142 303 TeliaNet Sweden
3215 314 818 172 France Telecom Transpac
3320 265 1996 228 Deutsche Telekom AG
680 232 2054 229 DFN-IP service G-WiN
1257 219 370 196 SWIPnet Swedish IP Network
719 203 307 127 LANLINK autonomous system
5400 198 70 98 BT Ignite European Backbone
5515 186 779 160 Sonera Solution Autonomous Sy
786 179 1874 179 The JANET IP Service
8708 153 42 150 Romania Data Systems S.A.
20858 148 17 3 This AS will be used to conne
3303 145 517 144 Swisscom Ltd
8220 126 182 117 COLT Internet - International
12302 122 17 29 MobiFon S.A.
2856 117 1298 107 BTnet UK Regional network
3269 111 751 61 TELECOM ITALIA
3233 106 10 19 RNC - Romanian Natioanal R&D
3246 105 360 102 Song Networks
5511 104 175 80 France Telecom
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 284 98 104 ImpSat
7303 240 36 49 Telecom Argentina Stet-France
8151 214 341 116 UniNet S.A. de C.V.
11172 161 66 33 Servicios Alestra S.A de C.V
6503 157 191 110 AVANTEL, S.A.
16814 139 9 18 NSS, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
11340 110 3 38 Red Universitaria Nacional
10620 107 7 31 TVCABLE BOGOTA
6147 74 62 20 Telefonica Del Peru
1916 73 306 44 Fundacao de Amparo a Pesquisa
6535 72 5 23 Chilesat Servicios Empresari
8065 72 6 21 Empresas Publicas de Medellin
11992 71 7 32 Integrated Systems
15311 71 27 36 Telefonica Empresas
4270 69 18 10 Red de Interconexion Universi
7984 66 11 42 Global One Colombia
7080 64 4 1 Electronica y Comunicaciones
7927 64 5 39 Global One Venezuela
11830 61 4 20 Instituto Costarricense de El
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1247 762 Supernet, Inc.
18566 507 498 Covad Communications
4151 532 473 USDA
7018 1382 425 AT&T
7843 593 386 Adelphia Corp.
6197 498 384 BellSouth Network Solutions,
4323 538 369 Time Warner Communications, I
11492 322 319 Cable One
1221 1108 304 Telstra Pty Ltd
6347 371 292 SAVVIS Communications Corpora
4355 401 289 EarthLink, Inc.
1239 979 287 Sprint
22927 295 281 TELEFONICA DE ARGENTINA
705 450 254 UUNET Technologies, Inc.
6198 448 249 BellSouth Network Solutions,
4814 263 248 China Telecom (Group)
2386 483 239 AT&T Data Communications Serv
1 670 232 GENUITY
7066 484 230 Virginia Polytechnic Institut
17557 359 226 Pakistan Telecom
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p
64521 PRIVATE 198.189.23.0/24 2151 California State Uni
64521 PRIVATE 198.189.24.0/24 2151 California State Uni
64524 PRIVATE 198.189.134.0/24 2151 California State Uni
64524 PRIVATE 198.189.135.0/24 2151 California State Uni
64524 PRIVATE 198.189.136.0/24 2151 California State Uni
64524 PRIVATE 198.189.137.0/24 2151 California State Uni
64524 PRIVATE 198.189.138.0/24 2151 California State Uni
64521 PRIVATE 198.189.158.0/24 2151 California State Uni
64521 PRIVATE 198.189.235.0/24 2151 California State Uni
64521 PRIVATE 198.189.236.0/24 2151 California State Uni
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
132.0.0.0/10 568 DISO-UNRRA
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
158.0.0.0/13 568 DISO-UNRRA
192.44.0.0/19 702 UUNET - Commercial IP service
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.136.79.0/24 719 LANLINK autonomous system
192.153.136.0/21 568 DISO-UNRRA
192.156.164.0/24 19548 Adelphia Business Solutions
192.172.0.0/19 568 DISO-UNRRA
192.243.36.0/23 2044 AUSNet, Inc.
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:17 /9:3 /10:8 /11:13 /12:46
/13:89 /14:240 /15:445 /16:7347 /17:1605 /18:2906
/19:8197 /20:8120 /21:5828 /22:8841 /23:10593 /24:67303
/25:166 /26:188 /27:104 /28:80 /29:59 /30:72
/31:4 /32:60
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 818 1247 Supernet, Inc.
18566 502 507 Covad Communications
702 494 789 UUNET - Commercial IP service
7018 485 1382 AT&T
701 465 1598 UUNET Technologies, Inc.
690 457 508 Merit Network
7066 383 484 Virginia Polytechnic Institut
6197 366 498 BellSouth Network Solutions,
1239 365 979 Sprint
6198 358 448 BellSouth Network Solutions,
7843 355 593 Adelphia Corp.
11492 321 322 Cable One
22927 294 295 TELEFONICA DE ARGENTINA
2386 283 483 AT&T Data Communications Serv
6140 271 284 ImpSat
20115 269 397 Charter Communications
3215 239 314 France Telecom Transpac
7303 239 240 Telecom Argentina Stet-France
27364 232 240 Armstrong Cable Services
4355 229 401 EarthLink, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:658 13:1 15:4 17:2 20:9 24:879
25:1 32:90 34:1 38:60 40:18 44:2
55:1 57:15 61:452 62:509 63:1929 64:1390
65:1898 66:1471 67:214 68:296 69:54 80:330
81:97 128:148 129:223 130:40 131:82 132:11
133:11 134:146 135:4 136:114 137:117 138:101
139:74 140:138 141:123 142:94 143:47 144:89
145:18 146:264 147:86 148:272 149:73 150:43
151:110 152:258 153:51 154:2 155:107 156:42
157:41 158:124 159:140 160:34 161:60 162:136
163:86 164:297 165:142 166:80 167:321 168:393
169:54 170:312 171:8 192:5287 193:2392 194:2009
195:958 196:473 198:3597 199:3213 200:2888 202:3643
203:5092 204:3040 205:2029 206:2414 207:2427 208:2703
209:2802 210:738 211:334 212:969 213:756 214:21
215:21 216:3256 217:598 218:80 219:14 220:52
End of report
1
0
GEANT implementing "BGP Guard Time" on their Junipers (was: Route update stats)
by Christian Panigl, ACOnet/VIX/UniVie 06 Mar '03
by Christian Panigl, ACOnet/VIX/UniVie 06 Mar '03
06 Mar '03
Dear all,
remembering the thread on "Route update stats" in December ?
Specifically:
http://www.ripe.net/ripe/mail-archives/routing-wg/2002/msg00050.html
Now Christophe Belmont, GEANT-NOC, together with Juniper found a
solution and we successfully tested it:
They implemented "BGP Guard Time" (Cisco like 30 seconds) and the
result was impressive:
The number of BGP update messages received from GEANT dropped by ~85%
and the number of "flaps" seen from GEANT by ~75% !
BGP guard time (30sec) means that updates are only sent to neighbors for
prefixes which have stayed in the routing table for 30 seconds. I'm
sure you know the specific problem, that when a prefix is withdrawn in a
meshed environment, lots of updates are sent from BGP entities which do
think that they still have a (longer) path. It may take quite some time
until all these false updates are dying down. Without this guard time a
BGP speaker immediately forwards all those false updates to all peers.
I guess that if you would globally disable BGP guard time (which
fortunately is default ON=30seconds for Ciscos but apparently not for
Junipers) quite some routers would collapse on these withdrawal
aftermaths.
So my suggestion would be for all ISPs using Juniper routers: turn on
"BGP Guard Time" (Cisco like 30 seconds).
Christophe, probably you can post the details to the list !?
Kind regards
CP
--- ---------------------------------------------------------------------- ---
--- Christian Panigl : Vienna University Computer Center - ACOnet ---
--- VUCC - ACOnet - VIX : -------------------------------------------- ---
--- Universitaetsstrasse 7 : Mail: Panigl(a)CC.UniVie.ac.at (CP8-RIPE) ---
--- A-1010 Vienna / Austria : Tel: +43 1 4277-14032 (Fax: -9140) ---
--- ---------------------------------------------------------------------- ---
3
2
RE: GEANT implementing "BGP Guard Time" on their Junipers (was: R oute update stats)
by Guy Davies 04 Mar '03
by Guy Davies 04 Mar '03
04 Mar '03
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Hi All,
If I'm understanding Christian correctly, he's referring to "out-delay
<seconds>". This can be configured for all groups [edit protocols bgp], all
neighbours in a group [edit protocols bgp group <foo>] or for an individual
neighbour [edit protocols bgp group <foo> neighbour <bar>].
Regards,
Guy
> -----Original Message-----
> From: Christian Panigl, ACOnet/VIX/UniVie
> [mailto:panigl@cc.univie.ac.at]
> Sent: Tuesday, March 04, 2003 4:46 PM
> To: routing-wg(a)ripe.net
> Cc: christophe.belmont(a)c-s.fr; panigl(a)cc.univie.ac.at
> Subject: GEANT implementing "BGP Guard Time" on their Junipers (was:
> Route update stats)
>
>
> Dear all,
>
> remembering the thread on "Route update stats" in December ?
>
> Specifically:
>
> http://www.ripe.net/ripe/mail-archives/routing-wg/2002/msg00050.html
>
> Now Christophe Belmont, GEANT-NOC, together with Juniper found a
> solution and we successfully tested it:
>
> They implemented "BGP Guard Time" (Cisco like 30 seconds) and the
> result was impressive:
>
> The number of BGP update messages received from GEANT
> dropped by ~85%
> and the number of "flaps" seen from GEANT by ~75% !
>
> BGP guard time (30sec) means that updates are only sent
> to neighbors for
> prefixes which have stayed in the routing table for 30
> seconds. I'm
> sure you know the specific problem, that when a prefix is
> withdrawn in a
> meshed environment, lots of updates are sent from BGP
> entities which do
> think that they still have a (longer) path. It may take
> quite some time
> until all these false updates are dying down. Without
> this guard time a
> BGP speaker immediately forwards all those false updates
> to all peers.
> I guess that if you would globally disable BGP guard time (which
> fortunately is default ON=30seconds for Ciscos but
> apparently not for
> Junipers) quite some routers would collapse on these withdrawal
> aftermaths.
>
> So my suggestion would be for all ISPs using Juniper
> routers: turn on
> "BGP Guard Time" (Cisco like 30 seconds).
>
> Christophe, probably you can post the details to the list !?
>
> Kind regards
> CP
>
> ---
> --------------------------------------------------------------
> -------- ---
> --- Christian Panigl : Vienna University Computer
> Center - ACOnet ---
> --- VUCC - ACOnet - VIX :
> -------------------------------------------- ---
> --- Universitaetsstrasse 7 : Mail: Panigl(a)CC.UniVie.ac.at
> (CP8-RIPE) ---
> --- A-1010 Vienna / Austria : Tel: +43 1 4277-14032
> (Fax: -9140) ---
> ---
> --------------------------------------------------------------
> -------- ---
>
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Version: PGP 8.0
iQA/AwUBPmThJ43dwu/Ss2PCEQLPNQCgjYgcomnM4xZ9MD/5Ia2IETGIApkAnivl
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=jyoz
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This report has been generated at Fri Feb 28 21:46:34 2003 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
21-02-03 119400 85542
22-02-03 119615 85397
23-02-03 119379 85455
24-02-03 119479 85425
25-02-03 119470 85630
26-02-03 119690 85676
27-02-03 119740 85694
28-02-03 119708 85768
AS Summary
14678 Number of ASes in routing system
5782 Number of ASes announcing only one prefix
1604 Largest number of prefixes announced by an AS
AS701 : ALTERNET-AS UUNET Technologies, Inc.
73080832 Largest address span announced by an AS (/32s)
AS568 : SUMNET-AS DISO-UNRRA
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').
--- 28Feb03 ---
ASnum NetsNow NetsAggr NetGain % Gain Description
Table 119861 85734 34127 28.5% All ASes
AS3908 1084 568 516 47.6% SUPERNETASBLK SuperNet, Inc.
AS18566 491 8 483 98.4% COVAD Covad Communications
AS701 1604 1151 453 28.2% ALTERNET-AS UUNET
Technologies, Inc.
AS4151 532 105 427 80.3% USDA-1 USDA
AS4323 533 169 364 68.3% TW-COMM Time Warner
Communications, Inc.
AS7018 1385 1025 360 26.0% ATT-INTERNET4 AT&T WorldNet
Services
AS7843 556 224 332 59.7% ADELPHIA-AS Adelphia Corp.
AS6197 485 157 328 67.6% BATI-ATL BellSouth Network
Solutions, Inc
AS7046 559 244 315 56.4% UUNET-CUSTOMER UUNET
Technologies, Inc.
AS1221 1121 816 305 27.2% ASN-TELSTRA Telstra Pty Ltd
AS1239 969 686 283 29.2% SPRINTLINK Sprint
AS4355 402 119 283 70.4% ERMS-EARTHLNK EARTHLINK, INC
AS22927 295 14 281 95.3% AR-TEAR2-LACNIC TELEFONICA DE
ARGENTINA
AS705 450 196 254 56.4% ASN-ALTERNET UUNET
Technologies, Inc.
AS4814 264 15 249 94.3% CHINANET-BEIJING-AP China
Telecom (Group)
AS6198 439 205 234 53.3% BATI-MIA BellSouth Network
Solutions, Inc
AS1 662 435 227 34.3% GNTY-1 Genuity
AS22291 243 31 212 87.2% CHARTER-LA Charter
Communications
AS17676 230 26 204 88.7% GIGAINFRA XTAGE CORPORATION
AS6347 369 168 201 54.5% DIAMOND SAVVIS Communications
Corporation
AS2386 478 283 195 40.8% INS-AS AT&T Data
Communications Services
AS209 528 337 191 36.2% ASN-QWEST Qwest
AS4134 304 113 191 62.8% CHINANET-BACKBONE
No.31,Jin-rong Street
AS690 498 308 190 38.2% MERIT-AS-27 Merit Network Inc.
AS2048 258 87 171 66.3% LANET-1 State of Louisiana
AS852 599 444 155 25.9% ASN852 Telus Advanced
Communications
AS7303 240 90 150 62.5% AR-TAST-LACNIC Telecom
Argentina Stet-France Telecom
S.A.
AS22773 182 32 150 82.4% CCINET-2 Cox Communications
Inc. Atlanta
AS6140 285 136 149 52.3% IMPSAT-USA ImpSat
AS6327 187 41 146 78.1% SHAWFIBER Shaw Fiberlink
Limited
Total 16232 8233 7999 49.3% Top 30 total
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
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
For a graphical representation, please see http://www.apnic.net/stats/bgp.
If you have any comments please contact Philip Smith <pfs(a)cisco.com>.
Routing Table Report 20:00 +10GMT Fri 28 Feb, 2003
Analysis Summary
----------------
BGP routing table entries examined: 121927
Prefixes after maximum aggregation: 77477
Unique aggregates announced to Internet: 58082
Total ASes present in the Internet Routing Table: 14730
Origin-only ASes present in the Internet Routing Table: 12801
Origin ASes announcing only one prefix: 5774
Transit ASes present in the Internet Routing Table: 1929
Transit-only ASes present in the Internet Routing Table: 66
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 17
Illegal AS announcements present in the Routing Table: 11
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 20
Number of addresses announced to Internet: 1200020621
Equivalent to 71 /8s, 134 /16s and 220 /24s
Percentage of available address space announced: 32.4
Percentage of allocated address space announced: 58.3
Percentage of available address space allocated: 55.5
Total number of prefixes smaller than registry allocations: 57021
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20463
Total APNIC prefixes after maximum aggregation: 12056
Prefixes being announced from the APNIC address blocks: 18982
Unique aggregates announced from the APNIC address blocks: 11657
APNIC Region origin ASes present in the Internet Routing Table: 1743
APNIC Region origin ASes announcing only one prefix: 522
APNIC Region transit ASes present in the Internet Routing Table: 287
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 106683880
Equivalent to 6 /8s, 91 /16s and 221 /24s
Percentage of available APNIC address space announced: 56.6
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 61/8, 202/7, 210/7, 218/7 and 220/6
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 75025
Total ARIN prefixes after maximum aggregation: 47680
Prefixes being announced from the ARIN address blocks: 53234
Unique aggregates announced from the ARIN address blocks: 16611
ARIN Region origin ASes present in the Internet Routing Table: 8196
ARIN Region origin ASes announcing only one prefix: 2768
ARIN Region transit ASes present in the Internet Routing Table: 782
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 187856256
Equivalent to 11 /8s, 50 /16s and 117 /24s
Percentage of available ARIN address space announced: 70.0
ARIN AS Blocks 1 - 1876, 1902 - 2042, 2044 - 2046, 2048 - 2106
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
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 199/8, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 21126
Total RIPE prefixes after maximum aggregation: 15545
Prefixes being announced from the RIPE address blocks: 17658
Unique aggregates announced from the RIPE address blocks: 11063
RIPE Region origin ASes present in the Internet Routing Table: 4397
RIPE Region origin ASes announcing only one prefix: 2397
RIPE Region transit ASes present in the Internet Routing Table: 785
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 127445504
Equivalent to 7 /8s, 152 /16s and 170 /24s
Percentage of available RIPE address space announced: 76.0
RIPE AS Blocks 1877 - 1901, 2043, 2047, 2107 - 2136, 2585 - 2614
2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631
6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383
20480 - 21503, 24576 - 25599, 28672 - 29695
RIPE Address Blocks 62/8, 80/7, 82/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5303
Total LACNIC prefixes after maximum aggregation: 2196
Prefixes being announced from the LACNIC address blocks: 4671
Unique aggregates announced from the LACNIC address blocks: 3035
LACNIC Region origin ASes present in the Internet Routing Table: 330
LACNIC Region origin ASes announcing only one prefix: 87
LACNIC Region transit ASes present in the Internet Routing Table: 66
Average LACNIC Region AS path length visible: 5.8
Max LACNIC Region AS path length visible: 10
Number of LACNIC addresses announced to Internet: 12088064
Equivalent to 0 /8s, 184 /16s and 115 /24s
Percentage of available LACNIC address space announced: 72.1
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1113 1119 808 Telstra Pty Ltd
703 410 368 316 UUNET
2907 388 1960 367 SINET Japan
17557 346 25 138 Pakistan Telecom
2764 325 341 293 connect.com.au pty ltd
7474 306 276 208 Optus Communications Pty Ltd
4134 304 2637 96 Data Communications Bureau
4814 264 79 15 China Telecom (Group)
3786 241 773 207 DACOM Corporation
4755 235 134 75 Videsh Sanchar Nigam Ltd. Aut
17676 232 3574 24 XTAGE CORPORATION
9583 223 33 13 Satyam Infoway Ltd.,
4766 208 2074 155 Korea Internet Exchange for "
9443 178 57 76 Primus Telecommunications
9800 166 205 41 CHINA UNICOM
4765 152 10 14 World Net & Services Co., Ltd
9238 136 8 17 TATA ISP
4716 128 735 122 TTnet
4739 128 57 116 Commerical Internet eXchange
9768 128 384 64 Korea Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1613 8888 1149 UUNET Technologies, Inc.
7018 1387 7151 958 AT&T
3908 1244 1590 485 Supernet, Inc.
1239 979 3138 692 Sprint
1 669 8087 435 GENUITY
852 600 1107 444 Telus Advanced Communications
7046 559 826 243 UUNET Technologies, Inc.
7843 554 405 197 Adelphia Corp.
4323 534 473 168 Time Warner Communications, I
4151 531 691 58 USDA
209 529 2092 335 Qwest
690 498 73 308 Merit Network
3561 498 2327 339 Cable & Wireless USA
18566 491 114 7 Covad Communications
7066 490 204 254 Virginia Polytechnic Institut
6197 483 554 110 BellSouth Network Solutions,
2386 478 477 249 AT&T Data Communications Serv
376 460 375 111 Reseau Interordinateurs Scien
705 450 165 196 UUNET Technologies, Inc.
6198 437 195 201 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 790 2250 653 UUNET - Commercial IP service
3215 315 818 173 France Telecom Transpac
3301 315 1142 303 TeliaNet Sweden
3320 263 1996 227 Deutsche Telekom AG
680 232 2054 229 DFN-IP service G-WiN
1257 219 370 196 SWIPnet Swedish IP Network
719 202 307 129 LANLINK autonomous system
5400 197 70 97 BT Ignite European Backbone
5515 186 779 160 Sonera Solution Autonomous Sy
786 179 1874 179 The JANET IP Service
8708 152 42 149 Romania Data Systems S.A.
20858 148 17 3 This AS will be used to conne
3303 144 517 143 Swisscom Ltd
8220 125 182 116 COLT Internet - International
12302 123 18 30 MobiFon S.A.
2856 118 1299 108 BTnet UK Regional network
3269 111 751 61 TELECOM ITALIA
3233 108 11 12 RNC - Romanian Natioanal R&D
3246 104 360 101 Song Networks
3352 99 652 29 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 285 98 104 ImpSat
7303 240 36 49 Telecom Argentina Stet-France
8151 213 325 115 UniNet S.A. de C.V.
11172 160 66 32 Servicios Alestra S.A de C.V
6503 157 207 109 AVANTEL, S.A.
16814 139 9 18 NSS, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
11340 110 3 38 Red Universitaria Nacional
10620 107 7 31 TVCABLE BOGOTA
6147 75 62 21 Telefonica Del Peru
1916 73 306 44 Fundacao de Amparo a Pesquisa
6535 72 5 23 Chilesat Servicios Empresari
8065 72 6 18 Empresas Publicas de Medellin
15311 71 27 36 Telefonica Empresas
11992 69 7 30 Integrated Systems
4270 67 18 10 Red de Interconexion Universi
7984 66 11 42 Global One Colombia
7080 64 4 1 Electronica y Comunicaciones
7927 64 5 39 Global One Venezuela
11830 62 5 20 Instituto Costarricense de El
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1244 759 Supernet, Inc.
18566 491 484 Covad Communications
4151 531 473 USDA
7018 1387 429 AT&T
6197 483 373 BellSouth Network Solutions,
4323 534 366 Time Warner Communications, I
7843 554 357 Adelphia Corp.
376 460 349 Reseau Interordinateurs Scien
7046 559 316 UUNET Technologies, Inc.
11492 309 308 Cable One
1221 1113 305 Telstra Pty Ltd
6347 370 292 SAVVIS Communications Corpora
4355 402 290 EarthLink, Inc.
1239 979 287 Sprint
22927 295 281 TELEFONICA DE ARGENTINA
705 450 254 UUNET Technologies, Inc.
4814 264 249 China Telecom (Group)
7066 490 236 Virginia Polytechnic Institut
6198 437 236 BellSouth Network Solutions,
1 669 234 GENUITY
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p
64521 PRIVATE 198.189.23.0/24 2151 California State Uni
64521 PRIVATE 198.189.24.0/24 2151 California State Uni
64524 PRIVATE 198.189.134.0/24 2151 California State Uni
64524 PRIVATE 198.189.135.0/24 2151 California State Uni
64524 PRIVATE 198.189.136.0/24 2151 California State Uni
64524 PRIVATE 198.189.137.0/24 2151 California State Uni
64524 PRIVATE 198.189.138.0/24 2151 California State Uni
64521 PRIVATE 198.189.158.0/24 2151 California State Uni
64521 PRIVATE 198.189.235.0/24 2151 California State Uni
64521 PRIVATE 198.189.236.0/24 2151 California State Uni
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
132.0.0.0/10 568 DISO-UNRRA
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
158.0.0.0/13 568 DISO-UNRRA
192.44.0.0/19 702 UUNET - Commercial IP service
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.136.79.0/24 719 LANLINK autonomous system
192.136.86.0/24 719 LANLINK autonomous system
192.136.87.0/24 719 LANLINK autonomous system
192.136.88.0/24 719 LANLINK autonomous system
192.153.136.0/21 568 DISO-UNRRA
192.156.164.0/24 19548 Adelphia Business Solutions
192.172.0.0/19 568 DISO-UNRRA
192.243.36.0/23 2044 AUSNet, Inc.
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:18 /9:3 /10:8 /11:12 /12:46
/13:93 /14:238 /15:445 /16:7353 /17:1598 /18:2900
/19:8169 /20:8092 /21:5812 /22:8818 /23:10536 /24:66934
/25:170 /26:185 /27:113 /28:88 /29:63 /30:133
/31:4 /32:96
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 815 1244 Supernet, Inc.
702 493 790 UUNET - Commercial IP service
7018 491 1387 AT&T
18566 486 491 Covad Communications
701 476 1613 UUNET Technologies, Inc.
690 447 498 Merit Network
7066 389 490 Virginia Polytechnic Institut
1239 365 979 Sprint
6197 356 483 BellSouth Network Solutions,
6198 347 437 BellSouth Network Solutions,
7843 320 554 Adelphia Corp.
11492 308 309 Cable One
22927 294 295 TELEFONICA DE ARGENTINA
2386 274 478 AT&T Data Communications Serv
6140 272 285 ImpSat
7046 263 559 UUNET Technologies, Inc.
20115 257 383 Charter Communications
3215 240 315 France Telecom Transpac
7303 239 240 Telecom Argentina Stet-France
4355 229 402 EarthLink, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:653 13:1 15:4 17:2 20:9 24:837
25:1 32:83 34:1 38:57 40:18 44:2
55:1 57:16 61:453 62:508 63:1904 64:1391
65:1904 66:1463 67:214 68:280 69:52 80:319
81:99 128:144 129:189 130:40 131:81 132:13
133:2 134:145 135:4 136:121 137:117 138:106
139:74 140:132 141:123 142:94 143:46 144:111
145:18 146:264 147:85 148:267 149:73 150:44
151:110 152:252 153:51 154:3 155:107 156:42
157:41 158:124 159:142 160:34 161:58 162:135
163:84 164:269 165:140 166:80 167:317 168:387
169:54 170:306 171:8 192:5288 193:2422 194:1998
195:946 196:469 198:3598 199:3209 200:2895 202:3600
203:5097 204:3049 205:2027 206:2407 207:2386 208:2691
209:2761 210:737 211:336 212:958 213:745 214:21
215:21 216:3220 217:598 218:80 219:14 220:52
End of report
1
0
This report has been generated at Fri Feb 21 21:46:27 2003 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
14-02-03 119071 85433
15-02-03 119072 85385
16-02-03 118946 85348
17-02-03 118884 85299
18-02-03 118939 85352
19-02-03 119053 85338
20-02-03 119156 85478
21-02-03 119400 85502
AS Summary
14614 Number of ASes in routing system
5749 Number of ASes announcing only one prefix
1577 Largest number of prefixes announced by an AS
AS701 : ALTERNET-AS UUNET Technologies, Inc.
73048064 Largest address span announced by an AS (/32s)
AS568 : SUMNET-AS DISO-UNRRA
Possible Bogus Routes
10.0.0.0/8 AS4637 REACH Reach Network Border AS
192.168.0.0/16 AS4637 REACH Reach Network Border AS
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').
--- 21Feb03 ---
ASnum NetsNow NetsAggr NetGain % Gain Description
Table 119491 85471 34020 28.5% All ASes
AS3908 1062 565 497 46.8% SUPERNETASBLK SuperNet, Inc.
AS18566 482 6 476 98.8% COVAD Covad Communications
AS701 1577 1145 432 27.4% ALTERNET-AS UUNET
Technologies, Inc.
AS4151 524 92 432 82.4% USDA-1 USDA
AS7018 1427 1034 393 27.5% ATT-INTERNET4 AT&T WorldNet
Services
AS4323 529 170 359 67.9% TW-COMM Time Warner
Communications, Inc.
AS7843 569 234 335 58.9% ADELPHIA-AS Adelphia Corp.
AS7046 578 246 332 57.4% UUNET-CUSTOMER UUNET
Technologies, Inc.
AS6197 478 158 320 66.9% BATI-ATL BellSouth Network
Solutions, Inc
AS1221 1119 821 298 26.6% ASN-TELSTRA Telstra Pty Ltd
AS4355 402 120 282 70.1% ERMS-EARTHLNK EARTHLINK, INC
AS22927 295 14 281 95.3% AR-TEAR2-LACNIC TELEFONICA DE
ARGENTINA
AS1239 960 680 280 29.2% SPRINTLINK Sprint
AS705 447 194 253 56.6% ASN-ALTERNET UUNET
Technologies, Inc.
AS4814 261 15 246 94.3% CHINANET-BEIJING-AP China
Telecom (Group)
AS1 666 435 231 34.7% GNTY-1 Genuity
AS6347 330 101 229 69.4% DIAMOND SAVVIS Communications
Corporation
AS6198 433 204 229 52.9% BATI-MIA BellSouth Network
Solutions, Inc
AS22291 243 32 211 86.8% CHARTER-LA Charter
Communications
AS17676 227 26 201 88.5% GIGAINFRA XTAGE CORPORATION
AS690 498 308 190 38.2% MERIT-AS-27 Merit Network Inc.
AS209 523 335 188 35.9% ASN-QWEST Qwest
AS4134 304 117 187 61.5% CHINANET-BACKBONE
No.31,Jin-rong Street
AS2386 443 263 180 40.6% INS-AS AT&T Data
Communications Services
AS2048 260 87 173 66.5% LANET-1 State of Louisiana
AS852 604 445 159 26.3% ASN852 Telus Advanced
Communications
AS7303 240 90 150 62.5% AR-TAST-LACNIC Telecom
Argentina Stet-France Telecom
S.A.
AS17557 340 190 150 44.1% PKTELECOM-AS-AP Pakistan
Telecom
AS22773 181 31 150 82.9% CCINET-2 Cox Communications
Inc. Atlanta
AS6140 283 137 146 51.6% IMPSAT-USA ImpSat
Total 16285 8295 7990 49.1% Top 30 total
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
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
For a graphical representation, please see http://www.apnic.net/stats/bgp.
If you have any comments please contact Philip Smith <pfs(a)cisco.com>.
Routing Table Report 20:00 +10GMT Fri 21 Feb, 2003
Analysis Summary
----------------
BGP routing table entries examined: 121899
Prefixes after maximum aggregation: 77243
Unique aggregates announced to Internet: 57876
Total ASes present in the Internet Routing Table: 14677
Origin-only ASes present in the Internet Routing Table: 12744
Origin ASes announcing only one prefix: 5744
Transit ASes present in the Internet Routing Table: 1933
Transit-only ASes present in the Internet Routing Table: 68
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 17
Illegal AS announcements present in the Routing Table: 15
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 22
Number of addresses announced to Internet: 1180750605
Equivalent to 70 /8s, 96 /16s and 211 /24s
Percentage of available address space announced: 31.9
Percentage of allocated address space announced: 57.4
Percentage of available address space allocated: 55.5
Total number of prefixes smaller than registry allocations: 57147
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20864
Total APNIC prefixes after maximum aggregation: 11953
Prefixes being announced from the APNIC address blocks: 19439
Unique aggregates announced from the APNIC address blocks: 11648
APNIC Region origin ASes present in the Internet Routing Table: 1733
APNIC Region origin ASes announcing only one prefix: 514
APNIC Region transit ASes present in the Internet Routing Table: 297
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 106346656
Equivalent to 6 /8s, 86 /16s and 184 /24s
Percentage of available APNIC address space announced: 56.4
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 61/8, 202/7, 210/7, 218/7 and 220/6
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 74699
Total ARIN prefixes after maximum aggregation: 47581
Prefixes being announced from the ARIN address blocks: 52941
Unique aggregates announced from the ARIN address blocks: 16499
ARIN Region origin ASes present in the Internet Routing Table: 8175
ARIN Region origin ASes announcing only one prefix: 2763
ARIN Region transit ASes present in the Internet Routing Table: 772
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 187330496
Equivalent to 11 /8s, 42 /16s and 111 /24s
Percentage of available ARIN address space announced: 69.8
ARIN AS Blocks 1 - 1876, 1902 - 2042, 2044 - 2046, 2048 - 2106
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
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 199/8, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 21019
Total RIPE prefixes after maximum aggregation: 15497
Prefixes being announced from the RIPE address blocks: 17563
Unique aggregates announced from the RIPE address blocks: 11011
RIPE Region origin ASes present in the Internet Routing Table: 4376
RIPE Region origin ASes announcing only one prefix: 2383
RIPE Region transit ASes present in the Internet Routing Table: 781
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 126153344
Equivalent to 7 /8s, 132 /16s and 242 /24s
Percentage of available RIPE address space announced: 75.2
RIPE AS Blocks 1877 - 1901, 2043, 2047, 2107 - 2136, 2585 - 2614
2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631
6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383
20480 - 21503, 24576 - 25599, 28672 - 29695
RIPE Address Blocks 62/8, 80/7, 82/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5303
Total LACNIC prefixes after maximum aggregation: 2212
Prefixes being announced from the LACNIC address blocks: 4647
Unique aggregates announced from the LACNIC address blocks: 3028
LACNIC Region origin ASes present in the Internet Routing Table: 329
LACNIC Region origin ASes announcing only one prefix: 84
LACNIC Region transit ASes present in the Internet Routing Table: 68
Average LACNIC Region AS path length visible: 5.8
Max LACNIC Region AS path length visible: 10
Number of LACNIC addresses announced to Internet: 12042752
Equivalent to 0 /8s, 183 /16s and 194 /24s
Percentage of available LACNIC address space announced: 71.8
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1113 1135 815 Telstra Pty Ltd
4663 526 82 24 ELIMNET, INC
703 410 368 320 UUNET
2907 394 1994 372 SINET Japan
17557 340 24 128 Pakistan Telecom
2764 326 340 293 connect.com.au pty ltd
7474 305 276 208 Optus Communications Pty Ltd
4134 304 2651 100 Data Communications Bureau
4814 261 79 15 China Telecom (Group)
3786 241 773 207 DACOM Corporation
4755 232 133 74 Videsh Sanchar Nigam Ltd. Aut
17676 229 3526 24 XTAGE CORPORATION
9583 218 33 13 Satyam Infoway Ltd.,
4766 202 2073 149 Korea Internet Exchange for "
9443 180 57 76 Primus Telecommunications
9800 166 205 41 CHINA UNICOM
4765 150 9 14 World Net & Services Co., Ltd
9238 132 8 19 TATA ISP
4716 129 737 123 TTnet
4739 128 57 116 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1595 8889 1153 UUNET Technologies, Inc.
7018 1427 7151 965 AT&T
3908 1207 1587 473 Supernet, Inc.
1239 967 3118 682 Sprint
1 668 8084 432 GENUITY
852 605 1107 445 Telus Advanced Communications
7046 578 828 245 UUNET Technologies, Inc.
7843 570 402 209 Adelphia Corp.
4323 530 473 169 Time Warner Communications, I
209 525 2106 334 Qwest
4151 524 691 57 USDA
690 498 73 308 Merit Network
7066 493 204 254 Virginia Polytechnic Institut
18566 482 113 6 Covad Communications
6197 478 555 114 BellSouth Network Solutions,
3561 466 2322 326 Cable & Wireless USA
376 462 375 111 Reseau Interordinateurs Scien
705 448 165 195 UUNET Technologies, Inc.
2386 443 471 236 AT&T Data Communications Serv
6198 431 193 200 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 790 2247 652 UUNET - Commercial IP service
3301 315 1143 303 TeliaNet Sweden
3215 312 818 171 France Telecom Transpac
3320 263 1996 227 Deutsche Telekom AG
680 232 2054 229 DFN-IP service G-WiN
1257 218 369 199 SWIPnet Swedish IP Network
719 201 306 128 LANLINK autonomous system
5515 187 779 161 Sonera Solution Autonomous Sy
786 179 1874 179 The JANET IP Service
5400 160 69 95 BT Ignite European Backbone
8708 149 42 147 Romania Data Systems S.A.
20858 147 17 3 This AS will be used to conne
3303 144 517 143 Swisscom Ltd
12302 124 18 31 MobiFon S.A.
8220 122 174 113 COLT Internet - International
2856 120 1299 110 BTnet UK Regional network
3269 111 751 61 TELECOM ITALIA
3233 108 11 12 RNC - Romanian Natioanal R&D
3246 105 358 102 Song Networks
3352 100 652 29 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 283 98 104 ImpSat
7303 240 36 49 Telecom Argentina Stet-France
8151 210 332 115 UniNet S.A. de C.V.
11172 161 82 33 Servicios Alestra S.A de C.V
6503 157 191 110 AVANTEL, S.A.
16814 139 9 18 NSS, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
11340 110 3 38 Red Universitaria Nacional
10620 107 7 31 TVCABLE BOGOTA
6147 74 62 21 Telefonica Del Peru
8065 74 6 19 Empresas Publicas de Medellin
1916 73 306 44 Fundacao de Amparo a Pesquisa
6535 72 5 23 Chilesat Servicios Empresari
15311 71 27 36 Telefonica Empresas
4270 69 18 10 Red de Interconexion Universi
11992 69 7 30 Integrated Systems
7927 65 5 40 Global One Venezuela
7080 64 4 1 Electronica y Comunicaciones
7984 61 11 40 Global One Colombia
11830 60 4 21 Instituto Costarricense de El
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1207 734 Supernet, Inc.
4663 526 502 ELIMNET, INC
18566 482 476 Covad Communications
4151 524 467 USDA
7018 1427 462 AT&T
6197 478 364 BellSouth Network Solutions,
7843 570 361 Adelphia Corp.
4323 530 361 Time Warner Communications, I
376 462 351 Reseau Interordinateurs Scien
7046 578 333 UUNET Technologies, Inc.
11492 308 307 Cable One
1221 1113 298 Telstra Pty Ltd
6347 370 291 SAVVIS Communications Corpora
4355 402 290 EarthLink, Inc.
1239 967 285 Sprint
22927 295 281 TELEFONICA DE ARGENTINA
705 448 253 UUNET Technologies, Inc.
4814 261 246 China Telecom (Group)
7066 493 239 Virginia Polytechnic Institut
1 668 236 GENUITY
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64512 PRIVATE 66.205.199.0/24 25752 Neopolitan Networks
64520 PRIVATE 158.15.0.0/16 721 DLA Systems Automati
1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p
64521 PRIVATE 198.189.23.0/24 2151 California State Uni
64521 PRIVATE 198.189.24.0/24 2151 California State Uni
64524 PRIVATE 198.189.134.0/24 2151 California State Uni
64524 PRIVATE 198.189.135.0/24 2151 California State Uni
64524 PRIVATE 198.189.136.0/24 2151 California State Uni
64524 PRIVATE 198.189.137.0/24 2151 California State Uni
64524 PRIVATE 198.189.138.0/24 2151 California State Uni
64521 PRIVATE 198.189.158.0/24 2151 California State Uni
64521 PRIVATE 198.189.235.0/24 2151 California State Uni
64521 PRIVATE 198.189.236.0/24 2151 California State Uni
65520 PRIVATE 202.36.16.0/21 9889 Web InterNet, ISP
65520 PRIVATE 202.36.24.0/22 9889 Web InterNet, ISP
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
132.0.0.0/10 568 DISO-UNRRA
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
158.0.0.0/13 568 DISO-UNRRA
192.31.242.0/24 771 NASA Ames Research Center
192.44.0.0/19 702 UUNET - Commercial IP service
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.136.79.0/24 719 LANLINK autonomous system
192.136.86.0/24 719 LANLINK autonomous system
192.136.87.0/24 719 LANLINK autonomous system
192.136.88.0/24 719 LANLINK autonomous system
192.139.62.0/24 6539 GT Group Telecom Services Cor
192.153.136.0/21 568 DISO-UNRRA
192.156.164.0/24 19548 Adelphia Business Solutions
192.172.0.0/19 568 DISO-UNRRA
192.243.36.0/23 2044 AUSNet, Inc.
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:17 /9:3 /10:8 /11:12 /12:44
/13:93 /14:238 /15:445 /16:7340 /17:1585 /18:2885
/19:8142 /20:8032 /21:5770 /22:8749 /23:10481 /24:66824
/25:286 /26:415 /27:101 /28:97 /29:61 /30:174
/31:2 /32:95
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 779 1207 Supernet, Inc.
7018 525 1427 AT&T
702 494 790 UUNET - Commercial IP service
4663 482 526 ELIMNET, INC
18566 477 482 Covad Communications
701 453 1595 UUNET Technologies, Inc.
690 447 498 Merit Network
7066 392 493 Virginia Polytechnic Institut
1239 361 967 Sprint
6197 353 478 BellSouth Network Solutions,
7843 340 570 Adelphia Corp.
6198 339 431 BellSouth Network Solutions,
11492 307 308 Cable One
22927 294 295 TELEFONICA DE ARGENTINA
7046 280 578 UUNET Technologies, Inc.
6140 271 283 ImpSat
20115 271 396 Charter Communications
2386 240 443 AT&T Data Communications Serv
7303 239 240 Telecom Argentina Stet-France
3215 238 312 France Telecom Transpac
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:644 13:1 15:4 17:2 20:9 24:834
25:1 32:83 34:1 38:42 40:18 44:2
55:1 57:15 61:452 62:505 63:1903 64:1384
65:1864 66:1419 67:213 68:288 69:51 80:324
81:88 128:146 129:187 130:40 131:81 132:13
133:2 134:144 135:4 136:193 137:117 138:104
139:72 140:102 141:110 142:94 143:46 144:107
145:18 146:262 147:85 148:267 149:74 150:44
151:95 152:252 153:51 154:3 155:106 156:41
157:39 158:123 159:141 160:34 161:55 162:135
163:83 164:269 165:138 166:81 167:305 168:393
169:54 170:304 171:8 192:5289 193:2427 194:2006
195:958 196:458 198:3593 199:3199 200:2879 202:3636
203:5094 204:3019 205:2030 206:2396 207:2390 208:2697
209:2791 210:781 211:373 212:952 213:723 214:21
215:21 216:3184 217:595 218:78 219:14 220:50
End of report
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