- routing-wg - mailman.ripe.net

Weekly Routing Table Report
by Routing Analysis 23 Aug '01

23 Aug '01

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 24 Aug, 2001 Analysis Summary ---------------- BGP routing table entries examined: 106866 Origin ASes present in the Internet Routing Table: 11494 Origin ASes announcing only one prefix: 4222 Transit ASes present in the Internet Routing Table: 1480 Average AS path length visible in the Internet Routing Table: 5.3 Max AS path length visible: 16 Illegal AS announcements present in the Routing Table: 40 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from the IANA Reserved Address blocks: 15 Number of addresses announced to Internet: 1228285731 Equivalent to 73 /8s, 54 /16s and 39 /24s Percentage of available address space announced: 33.1 Percentage of allocated address space announced: 63.8 Percentage of available address space allocated: 51.9 Total number of prefixes smaller than registry allocations: 72884 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 15986 Prefixes being announced from the APNIC address blocks: 14353 APNIC Region origin ASes present in the Internet Routing Table: 1356 APNIC Region origin ASes announcing only one prefix: 463 APNIC Region transit ASes present in the Internet Routing Table: 223 Average APNIC Region AS path length visible: 5.1 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 76799457 Equivalent to 4 /8s, 147 /16s and 221 /24s Percentage of available APNIC address space announced: 75.5 APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239, 17408 - 18431 APNIC Address Blocks 61/8, 202/7, 210/7 and 218/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 73503 Prefixes being announced from the ARIN address blocks: 53311 ARIN Region origin ASes present in the Internet Routing Table: 6914 ARIN Region origin ASes announcing only one prefix: 2058 ARIN Region transit ASes present in the Internet Routing Table: 692 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 13 Number of ARIN addresses announced to Internet: 206246788 Equivalent to 12 /8s, 75 /16s and 19 /24s Percentage of available ARIN address space announced: 76.8 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 - 22527 ARIN Address Blocks 24/8, 63/8, 64/6, 68/8, 199/8, 200/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 17373 Prefixes being announced from the RIPE address blocks: 13566 RIPE Region origin ASes present in the Internet Routing Table: 3229 RIPE Region origin ASes announcing only one prefix: 1701 RIPE Region transit ASes present in the Internet Routing Table: 565 Average RIPE Region AS path length visible: 5.8 Max RIPE Region AS path length visible: 16 Number of RIPE addresses announced to Internet: 106133996 Equivalent to 6 /8s, 83 /16s and 121 /24s Percentage of available RIPE address space announced: 70.3 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 RIPE Address Blocks 62/8, 80/7, 193/8, 194/7, 212/7 and 217/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv Description 1221 1591 1315 Telstra Pty Ltd 2764 433 378 connect.com.au pty ltd 703 419 367 UUNET Technologies, Inc. 2907 368 1816 SINET Japan 4755 298 163 Videsh Sanchar Nigam Ltd. Aut 4134 240 1743 Data Communications Bureau 7474 232 289 Optus Communications Pty Ltd 7539 205 175 TANet2, sponsored by NSC, TAI 4740 203 25 OzEmail ISP 4766 188 1361 Korea Internet Exchange for " 7545 150 25 TPG Internet Pty Ltd 9443 145 39 Primus Telecommunications 4786 131 17 NetConnect Communications Pty 4763 120 69 Telstra New Zealand 17561 116 167 Internet service provision to 4713 114 869 NTT Communications Corporatio 9583 113 61 Satyam Infoway Ltd., 7586 110 17 Paradox Digital Pty Ltd 4812 109 278 China Telecom (Group) 7657 107 22 The Internet Group Limited RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv Description 702 707 1732 UUNET Technologies, Inc. 3301 431 917 TeliaNet Sweden 15870 377 12 Global Center Frankfurt 1257 278 521 SWIPnet Swedish IP Network 680 232 2261 DFN-IP service G-WiN 1270 220 845 UUNET Germany 3215 218 511 France Telecom / &Equant 5515 193 672 Sonera Finland Autonomous Sys 786 184 1890 The JANET IP Service 3320 182 1938 Deutsche Telekom AG 719 180 291 LANLINK autonomous system 8708 152 19 Romania Data Systems S.A. 15878 143 12 Global Center Paris 5400 136 66 Concert European Core Network 3303 132 576 Swisscom Ltd 2856 125 774 BTnet UK Regional network 5549 124 64 Nextra Deutschland GmbH + Co. 517 118 269 KPNQwest Germany GmbH 1267 103 1989 Infostrada S.p.A. 3269 103 784 TELECOM ITALIA ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv Description 701 2294 8141 UUNET Technologies, Inc. 7018 1017 7120 AT&T 3908 895 629 Supernet, Inc. 1 877 8662 BBN Planet 2551 854 660 ICG NetAhead, Inc 7046 772 1041 UUNET Technologies, Inc. 1239 715 3257 Sprint 3967 604 487 Exodus Communication 209 511 2151 Qwest 2914 508 2312 Verio, Inc. 690 499 93 Merit Network 4293 477 115 Cable & Wireless USA 3561 422 2399 Cable & Wireless USA 2548 387 1000 Business Internet, Inc. 2149 386 280 Performance Systems, Inc. 3549 369 820 Global Crossing 18994 356 10 Global Crossing 577 348 617 Bell Advanced Communications 6347 338 360 SAVVIS Communications Corpora 4323 337 316 Time Warner Communications, I Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv Description 701 2294 8141 UUNET Technologies, Inc. 1221 1591 1315 Telstra Pty Ltd 7018 1017 7120 AT&T 3908 895 629 Supernet, Inc. 1 877 8662 BBN Planet 2551 854 660 ICG NetAhead, Inc 7046 772 1041 UUNET Technologies, Inc. 1239 715 3257 Sprint 702 707 1732 UUNET Technologies, Inc. 3967 604 487 Exodus Communication 209 511 2151 Qwest 2914 508 2312 Verio, Inc. 690 499 93 Merit Network 4293 477 115 Cable & Wireless USA 2764 433 378 connect.com.au pty ltd 3301 431 917 TeliaNet Sweden 3561 422 2399 Cable & Wireless USA 703 419 367 UUNET Technologies, Inc. 2548 387 1000 Business Internet, Inc. 2149 386 280 Performance Systems, Inc. List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 65534 PRIVATE 62.23.176.0/24 6675 Colt Telecommunicati 65534 PRIVATE 62.23.177.0/24 6675 Colt Telecommunicati 6971 UNALLOCATED 64.42.0.0/18 2516 Kokusai Denshin Denw 6971 UNALLOCATED 64.42.0.0/17 2516 Kokusai Denshin Denw 6971 UNALLOCATED 64.42.40.0/21 2914 Verio, Inc. 6971 UNALLOCATED 64.42.48.0/21 2914 Verio, Inc. 6971 UNALLOCATED 64.42.60.0/22 2914 Verio, Inc. 6971 UNALLOCATED 64.42.72.0/21 2914 Verio, Inc. 6971 UNALLOCATED 64.42.108.0/22 2914 Verio, Inc. 6971 UNALLOCATED 64.42.112.0/20 2914 Verio, Inc. 6971 UNALLOCATED 64.87.64.0/19 2516 Kokusai Denshin Denw 578 UNALLOCATED 64.230.242.16/28 577 Bell Advanced Commun 2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp. 6971 UNALLOCATED 192.103.229.0/24 2516 Kokusai Denshin Denw 6971 UNALLOCATED 192.103.230.0/23 2516 Kokusai Denshin Denw 6971 UNALLOCATED 192.103.232.0/22 2516 Kokusai Denshin Denw 6971 UNALLOCATED 192.103.236.0/23 2516 Kokusai Denshin Denw 6971 UNALLOCATED 192.103.237.0/24 2516 Kokusai Denshin Denw 1877 UNALLOCATED 192.108.199.0/24 1755 Ebone Transit Core 65460 PRIVATE 192.231.11.0/24 7018 AT&T 6971 UNALLOCATED 199.249.223.0/24 2516 Kokusai Denshin Denw 6971 UNALLOCATED 206.58.248.0/22 2516 Kokusai Denshin Denw 6971 UNALLOCATED 206.58.248.0/21 2516 Kokusai Denshin Denw 6971 UNALLOCATED 206.58.252.0/23 2914 Verio, Inc. 6971 UNALLOCATED 206.58.254.0/23 2914 Verio, Inc. 5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies, 65515 PRIVATE 212.110.142.0/24 5593 CRIS-AS 6971 UNALLOCATED 216.105.192.0/20 2516 Kokusai Denshin Denw 6971 UNALLOCATED 216.121.224.0/19 2516 Kokusai Denshin Denw 6971 UNALLOCATED 216.174.192.0/21 2516 Kokusai Denshin Denw 6971 UNALLOCATED 216.174.192.0/18 2516 Kokusai Denshin Denw 6971 UNALLOCATED 216.174.200.0/23 2516 Kokusai Denshin Denw 6971 UNALLOCATED 216.174.202.0/23 2914 Verio, Inc. 6971 UNALLOCATED 216.174.204.0/22 2914 Verio, Inc. 6971 UNALLOCATED 216.174.208.0/20 2516 Kokusai Denshin Denw 6971 UNALLOCATED 216.174.232.0/21 2914 Verio, Inc. 6971 UNALLOCATED 216.174.240.0/22 2914 Verio, Inc. 6971 UNALLOCATED 216.210.128.0/18 2516 Kokusai Denshin Denw 6971 UNALLOCATED 216.210.128.0/17 2516 Kokusai Denshin Denw 6971 UNALLOCATED 216.229.96.0/20 2516 Kokusai Denshin Denw Advertised Unregistered Addresses --------------------------------- Network Origin AS Description 82.105.0.0/16 3269 TELECOM ITALIA 82.105.128.0/17 3269 TELECOM ITALIA 128.65.0.0/16 3463 ACES Research Inc 132.0.0.0/10 568 DISO-UNRRA 135.0.0.0/13 10455 Lucent Technologies 137.0.0.0/13 568 DISO-UNRRA 138.94.0.0/16 1 BBN Planet 144.7.0.0/16 701 UUNET Technologies, Inc. 153.34.0.0/15 701 UUNET Technologies, Inc. 153.36.0.0/14 701 UUNET Technologies, Inc. 154.150.0.0/16 6494 IDCI 158.0.0.0/13 568 DISO-UNRRA 164.233.0.0/16 6020 DISA NETWORK SERVICES 172.32.1.0/25 1221 Telstra Pty Ltd 201.115.100.0/24 7018 AT&T Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:18 /9:5 /10:6 /11:12 /12:32 /13:84 /14:224 /15:379 /16:6933 /17:1220 /18:2298 /19:6857 /20:5650 /21:4644 /22:6890 /23:8742 /24:60929 /25:341 /26:371 /27:341 /28:325 /29:259 /30:227 /31:0 /32:79 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 701 1447 2294 UUNET Technologies, Inc. 1221 1441 1591 Telstra Pty Ltd 2551 748 854 ICG NetAhead, Inc 3908 748 895 Supernet, Inc. 7046 597 772 UUNET Technologies, Inc. 7018 524 1017 AT&T 690 495 499 Merit Network 4293 460 477 Cable & Wireless USA 702 457 707 UUNET Technologies, Inc. 3967 424 604 Exodus Communication 1 411 877 BBN Planet 1239 396 715 Sprint 2764 386 433 connect.com.au pty ltd 15870 373 377 Global Center Frankfurt 209 362 511 Qwest 18994 354 356 Global Crossing 703 349 419 UUNET Technologies, Inc. 11371 309 322 Rhythms NetConnections 4323 288 337 Time Warner Communications, I 4151 285 327 USDA Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:3 9:1 12:403 13:10 15:1 17:6 20:1 24:698 26:1 32:32 38:8 43:3 44:2 53:2 55:1 57:15 61:69 62:137 63:1908 64:1346 65:611 66:424 80:36 128:44 129:115 130:19 131:44 132:12 133:1 134:138 135:9 136:22 137:93 138:199 139:46 140:139 141:160 142:64 143:40 144:144 145:11 146:143 147:129 148:214 149:89 150:37 151:212 152:404 153:31 154:23 155:77 156:84 157:122 158:72 159:65 160:45 161:58 162:67 163:158 164:107 165:92 166:185 167:142 168:119 169:36 170:282 171:2 192:5498 193:1932 194:2039 195:817 196:412 198:3717 199:3401 200:2432 201:1 202:2726 203:4595 204:3513 205:2367 206:3029 207:2762 208:3076 209:3217 210:528 211:124 212:799 213:465 214:9 215:14 216:3064 217:377 218:2 End of report

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Call for Papers -- Passive & Active Measurement 2002
by rick_whitner＠agilent.com 22 Aug '01

22 Aug '01

[Our apologies if you receive multiple copies of this CFP. A more detailed version of this CFP can be found on the conference web site at http://www.labs.agilent.com/pam2002/papers/index.htm ] Passive & Active Measurement: PAM 2002 Call for Papers Fort Collins, Colorado, USA March 25-27, 2002 PAM 2002 is a two-and-a-half day event focusing on research and practical applications of passive and active measurement and analysis techniques for high speed computer networks and the Internet. This third PAM workshop follows successful PAM workshops in Hamilton, New Zealand, in 2000 and Amsterdam, in 2001. Papers are invited from the research, provider and any other communities on topics related to network traffic measurement. Areas of interest include, but are not limited to: 1. 'Experience' papers, which describe practical uses of measurements, especially in large networks. 2. Papers on modelling network traffic, in particular if they are backed up by measurements of real traffic. 3. Papers describing network research that can be applied to existing networks. IMPORTANT DATES * 28 October 2001: Deadline for abstracts * 3 December 2001: Notification of acceptance * 4 February 2002: Final papers due * 25-27 March 2002: Conference CONTACT INFORMATION * PAM 2002 c/o Agilent Laboratories 4800 Wheaton Dr Fort Collins, CO 80525 USA * Phone: +1-970-288-3821 * Fax: +1-970-288-4234 * Email: pam2002(a)labs.agilent.com * Webpage: http://www.labs.agilent.com/pam2002

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The Cidr Report
by CIDR Report 18 Aug '01

18 Aug '01

This is an auto-generated mail on Fri Aug 17 23:00:00 PDT 2001 It is not checked before it leaves my workstation. However, hopefully you will find this report interesting and will take the time to look through this to see if you can improve the amount of aggregation you perform. Check http://www.employees.org/~tbates/cidr-report.html for a daily update of this report. NEW: Check http://www.employees.org/~tbates/cidr-report-region.html for the regional version of this report. NEW: Check http://www.employees.org/~tbates/autnums.html for a complete list of autonomous system number to name mappings as used by the CIDR-Report. The report is split into sections: 0) General Status List the route table history for the last week, list any possibly bogus routes seen and give some status on ASes. 1) Gains by aggregating at the origin AS level This lists the "Top 30" players who if they decided to aggregate their announced classful prefixes at the origin AS level could make a significant difference in the reduction of the current size of the Internet routing table. This calculation does not take into account the inclusion of holes when forming an aggregate so it is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes. Please note that this is only a snapshot but does give some indication of ASes participating in CIDR. Clearly, it is generally a good thing to see a large amont of withdrawls. 3) Interesting aggregates Interesting here means not an aggregate made as a set of classful routes. Thanks to GX Networks for giving me access to their routing tables once a day. Please send any comments about this report directly to CIDR Report <cidr-report(a)cisco.com>. ------------------------------------------------------------------------------ CIDR REPORT for 17Aug01 0) General Status Table History ------------- Date Prefixes 100801 102845 110801 102706 120801 102533 130801 102657 140801 102662 150801 102621 160801 102577 170801 102866 Check http://www.employees.org/~tbates/cidr.plot.html for a plot of the table history. Possible Bogus Routes --------------------- *** Bogus 82.105.0.0/16 from AS3269 *** Bogus 82.105.128.0/17 from AS3269 AS Summary ---------- Number of ASes in routing system: 11408 Number of ASes announcing only one prefix: 6792 (3875 cidr, 2917 classful) Largest number of cidr routes: 852 announced by AS701 Largest number of classful routes: 1406 announced by AS701 1) Gains by aggregating at the origin AS level --- 17Aug01 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS1221 1258 970 288 22.9% Telstra Pty Ltd AS701 1406 1188 218 15.5% UUNET Technologies, Inc. AS2551 798 637 161 20.2% ICG NetAhead, Inc AS4151 289 165 124 42.9% USDA AS4293 379 270 109 28.8% Cable & Wireless USA AS6595 164 58 106 64.6% DoD Education Activity Network As AS577 294 188 106 36.1% Bell Advanced Communications Inc. AS16473 173 70 103 59.5% Bell South AS13999 113 11 102 90.3% Mega Cable S.A. de C.V. AS705 245 145 100 40.8% UUNET Technologies, Inc. AS6429 200 103 97 48.5% AT&T Chile Internet S.A. AS7018 741 652 89 12.0% AT&T AS4755 210 123 87 41.4% Videsh Sanchar Nigam Ltd. Autonom AS7046 324 254 70 21.6% UUNET Technologies, Inc. AS724 231 164 67 29.0% DLA Systems Automation Center AS6471 123 60 63 51.2% ENTEL CHILE S.A. AS12302 94 33 61 64.9% MobiFon S.A. AS1239 457 398 59 12.9% Sprint AS4200 126 68 58 46.0% Apex Global Information Services, AS3464 148 91 57 38.5% Alabama SuperComputer Network AS16758 63 6 57 90.5% IKON Office Solutions AS703 309 254 55 17.8% UUNET Technologies, Inc. AS3908 320 266 54 16.9% Supernet, Inc. AS226 147 94 53 36.1% Los Nettos AS1 543 490 53 9.8% BBN Planet AS6413 65 13 52 80.0% Southern Online Systems, Inc. AS209 284 232 52 18.3% Qwest AS4323 240 189 51 21.2% Time Warner Communications, Inc. AS17561 113 62 51 45.1% Internet service provision to Wes AS855 145 95 50 34.5% Canadian Research Network For the rest of the previous weeks gain information please see http://www.employees.org:80/~tbates/cidr-report.html 2) Weekly Delta Please see http://www.employees.org:80/~tbates/cidr-report.html for this part of the report 3) Interesting aggregates Please see http://www.employees.org:80/~tbates/cidr-report.html for this part of the report

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Weekly Routing Table Report
by Routing Analysis 16 Aug '01

16 Aug '01

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 17 Aug, 2001 Analysis Summary ---------------- BGP routing table entries examined: 106552 Origin ASes present in the Internet Routing Table: 11449 Origin ASes announcing only one prefix: 4195 Transit ASes present in the Internet Routing Table: 1475 Average AS path length visible in the Internet Routing Table: 5.3 Max AS path length visible: 16 Illegal AS announcements present in the Routing Table: 39 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from the IANA Reserved Address blocks: 16 Number of addresses announced to Internet: 1224071201 Equivalent to 72 /8s, 245 /16s and 216 /24s Percentage of available address space announced: 33.0 Percentage of allocated address space announced: 63.6 Percentage of available address space allocated: 51.9 Total number of prefixes smaller than registry allocations: 72715 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 15947 Prefixes being announced from the APNIC address blocks: 14293 APNIC Region origin ASes present in the Internet Routing Table: 1348 APNIC Region origin ASes announcing only one prefix: 458 APNIC Region transit ASes present in the Internet Routing Table: 217 Average APNIC Region AS path length visible: 5.1 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 76337609 Equivalent to 4 /8s, 140 /16s and 209 /24s Percentage of available APNIC address space announced: 75.1 APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239, 17408 - 18431 APNIC Address Blocks 61/8, 202/7, 210/7 and 218/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 73087 Prefixes being announced from the ARIN address blocks: 52878 ARIN Region origin ASes present in the Internet Routing Table: 6877 ARIN Region origin ASes announcing only one prefix: 2036 ARIN Region transit ASes present in the Internet Routing Table: 679 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 203405397 Equivalent to 12 /8s, 31 /16s and 184 /24s Percentage of available ARIN address space announced: 75.8 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 - 22527 ARIN Address Blocks 24/8, 63/8, 64/6, 68/8, 199/8, 200/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 17514 Prefixes being announced from the RIPE address blocks: 13651 RIPE Region origin ASes present in the Internet Routing Table: 3228 RIPE Region origin ASes announcing only one prefix: 1701 RIPE Region transit ASes present in the Internet Routing Table: 579 Average RIPE Region AS path length visible: 5.8 Max RIPE Region AS path length visible: 15 Number of RIPE addresses announced to Internet: 105576897 Equivalent to 6 /8s, 74 /16s and 249 /24s Percentage of available RIPE address space announced: 69.9 RIPE AS Blocks 1877 - 1901, 2042, 2047, 2107 - 2136, 2585 - 2614 2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631 6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383 20480 - 21503 RIPE Address Blocks 62/8, 80/7, 193/8, 194/7, 212/7 and 217/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv Description 1221 1594 1316 Telstra Pty Ltd 2764 436 378 connect.com.au pty ltd 703 420 368 UUNET Technologies, Inc. 2907 376 1818 SINET Japan 4755 291 162 Videsh Sanchar Nigam Ltd. Aut 4134 236 1743 Data Communications Bureau 7474 233 289 Optus Communications Pty Ltd 4740 208 26 OzEmail ISP 7539 208 175 TANet2, sponsored by NSC, TAI 4766 179 1336 Korea Internet Exchange for " 7545 155 25 TPG Internet Pty Ltd 9443 143 39 Primus Telecommunications 4786 131 17 NetConnect Communications Pty 4763 120 69 Telstra New Zealand 9583 116 61 Satyam Infoway Ltd., 17561 116 167 Internet service provision to 4713 114 885 NTT Communications Corporatio 4812 109 278 China Telecom (Group) 7586 109 17 Paradox Digital Pty Ltd 4732 105 372 DDI CORPORATION RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv Description 702 704 1735 UUNET Technologies, Inc. 3301 432 918 TeliaNet Sweden 15870 388 12 Global Center Frankfurt 1257 277 520 SWIPnet Swedish IP Network 680 229 2069 DFN-IP service G-WiN 1270 226 861 UUNET Germany 3215 222 496 France Telecom / &Equant 15878 201 8 Global Center Paris 786 184 1890 The JANET IP Service 3320 182 1939 Deutsche Telekom AG 719 181 291 LANLINK autonomous system 5515 175 654 Sonera Finland Autonomous Sys 8708 153 19 Romania Data Systems S.A. 5400 137 66 Concert European Core Network 3303 132 576 Swisscom Ltd 2856 125 774 BTnet UK Regional network 5549 124 66 Nextra Deutschland GmbH + Co. 517 118 269 KPNQwest Germany GmbH 8503 112 3 PCNET - PCNET DATA Network 5511 109 170 France Telecom ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv Description 701 2313 8140 UUNET Technologies, Inc. 7018 1002 7119 AT&T 3908 891 628 Supernet, Inc. 1 885 8714 BBN Planet 2551 782 655 ICG NetAhead, Inc 7046 775 1041 UUNET Technologies, Inc. 1239 692 3234 Sprint 2914 506 2311 Verio, Inc. 690 505 78 Merit Network 209 492 2135 Qwest 4293 480 98 Cable & Wireless USA 3561 427 2414 Cable & Wireless USA 2548 390 1000 Business Internet, Inc. 2149 389 312 Performance Systems, Inc. 3549 363 818 Global Crossing 18994 360 10 Global Crossing 577 348 617 Bell Advanced Communications 3967 346 457 Exodus Communication 4323 346 318 Time Warner Communications, I 6347 335 360 SAVVIS Communications Corpora Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv Description 701 2313 8140 UUNET Technologies, Inc. 1221 1594 1316 Telstra Pty Ltd 7018 1002 7119 AT&T 3908 891 628 Supernet, Inc. 1 885 8714 BBN Planet 2551 782 655 ICG NetAhead, Inc 7046 775 1041 UUNET Technologies, Inc. 702 704 1735 UUNET Technologies, Inc. 1239 692 3234 Sprint 2914 506 2311 Verio, Inc. 690 505 78 Merit Network 209 492 2135 Qwest 4293 480 98 Cable & Wireless USA 2764 436 378 connect.com.au pty ltd 3301 432 918 TeliaNet Sweden 3561 427 2414 Cable & Wireless USA 703 420 368 UUNET Technologies, Inc. 2548 390 1000 Business Internet, Inc. 2149 389 312 Performance Systems, Inc. 15870 388 12 Global Center Frankfurt List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 6971 UNALLOCATED 64.42.0.0/18 2516 Kokusai Denshin Denw 6971 UNALLOCATED 64.42.0.0/17 2516 Kokusai Denshin Denw 6971 UNALLOCATED 64.42.40.0/21 2914 Verio, Inc. 6971 UNALLOCATED 64.42.48.0/21 2914 Verio, Inc. 6971 UNALLOCATED 64.42.60.0/22 2914 Verio, Inc. 6971 UNALLOCATED 64.42.72.0/21 2914 Verio, Inc. 6971 UNALLOCATED 64.42.108.0/22 2914 Verio, Inc. 6971 UNALLOCATED 64.42.112.0/20 2914 Verio, Inc. 6971 UNALLOCATED 64.87.64.0/19 2516 Kokusai Denshin Denw 2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp. 64842 PRIVATE 161.217.144.0/24 7046 UUNET Technologies, 64842 PRIVATE 161.217.145.0/24 7046 UUNET Technologies, 6971 UNALLOCATED 192.103.229.0/24 2516 Kokusai Denshin Denw 6971 UNALLOCATED 192.103.230.0/23 2516 Kokusai Denshin Denw 6971 UNALLOCATED 192.103.232.0/22 2516 Kokusai Denshin Denw 6971 UNALLOCATED 192.103.236.0/23 2516 Kokusai Denshin Denw 6971 UNALLOCATED 192.103.237.0/24 2516 Kokusai Denshin Denw 1877 UNALLOCATED 192.108.199.0/24 1755 Ebone Transit Core 65460 PRIVATE 192.231.11.0/24 7018 AT&T 6971 UNALLOCATED 199.249.223.0/24 2516 Kokusai Denshin Denw 6971 UNALLOCATED 206.58.248.0/22 2516 Kokusai Denshin Denw 6971 UNALLOCATED 206.58.248.0/21 2516 Kokusai Denshin Denw 6971 UNALLOCATED 206.58.252.0/23 2914 Verio, Inc. 6971 UNALLOCATED 206.58.254.0/23 2914 Verio, Inc. 5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies, 65515 PRIVATE 212.110.142.0/24 5593 CRIS-AS 6971 UNALLOCATED 216.105.192.0/20 2516 Kokusai Denshin Denw 6971 UNALLOCATED 216.121.224.0/19 2516 Kokusai Denshin Denw 6971 UNALLOCATED 216.174.192.0/21 2516 Kokusai Denshin Denw 6971 UNALLOCATED 216.174.192.0/18 2516 Kokusai Denshin Denw 6971 UNALLOCATED 216.174.200.0/23 2516 Kokusai Denshin Denw 6971 UNALLOCATED 216.174.202.0/23 2914 Verio, Inc. 6971 UNALLOCATED 216.174.204.0/22 2914 Verio, Inc. 6971 UNALLOCATED 216.174.208.0/20 2516 Kokusai Denshin Denw 6971 UNALLOCATED 216.174.232.0/21 2914 Verio, Inc. 6971 UNALLOCATED 216.174.240.0/22 2914 Verio, Inc. 6971 UNALLOCATED 216.210.128.0/18 2516 Kokusai Denshin Denw 6971 UNALLOCATED 216.210.128.0/17 2516 Kokusai Denshin Denw 6971 UNALLOCATED 216.229.96.0/20 2516 Kokusai Denshin Denw Advertised Unregistered Addresses --------------------------------- Network Origin AS Description 82.105.0.0/16 3269 TELECOM ITALIA 82.105.128.0/17 3269 TELECOM ITALIA 128.65.0.0/16 3463 ACES Research Inc 132.0.0.0/10 568 DISO-UNRRA 134.137.0.0/16 400 Headquarters Standard Systems 135.0.0.0/13 10455 Lucent Technologies 137.0.0.0/13 568 DISO-UNRRA 138.94.0.0/16 1 BBN Planet 144.7.0.0/16 701 UUNET Technologies, Inc. 153.34.0.0/15 701 UUNET Technologies, Inc. 153.36.0.0/14 701 UUNET Technologies, Inc. 154.150.0.0/16 6494 IDCI 158.0.0.0/13 568 DISO-UNRRA 164.233.0.0/16 6020 DISA NETWORK SERVICES 172.32.1.0/25 1221 Telstra Pty Ltd 201.115.100.0/24 7018 AT&T Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:18 /9:5 /10:6 /11:11 /12:32 /13:83 /14:224 /15:374 /16:6936 /17:1210 /18:2293 /19:6828 /20:5586 /21:4619 /22:6843 /23:8638 /24:60633 /25:336 /26:385 /27:381 /28:385 /29:317 /30:314 /31:2 /32:93 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 701 1451 2313 UUNET Technologies, Inc. 1221 1445 1594 Telstra Pty Ltd 3908 744 891 Supernet, Inc. 2551 679 782 ICG NetAhead, Inc 7046 602 775 UUNET Technologies, Inc. 7018 509 1002 AT&T 690 502 505 Merit Network 4293 463 480 Cable & Wireless USA 702 455 704 UUNET Technologies, Inc. 1 417 885 BBN Planet 2764 389 436 connect.com.au pty ltd 15870 384 388 Global Center Frankfurt 1239 377 692 Sprint 18994 358 360 Global Crossing 703 350 420 UUNET Technologies, Inc. 209 342 492 Qwest 11371 309 322 Rhythms NetConnections 4323 297 346 Time Warner Communications, I 18993 287 291 Global Crossing 4151 284 325 USDA Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:1 9:1 12:395 13:10 15:1 17:6 20:1 24:672 26:1 32:32 38:7 43:5 44:2 53:2 55:1 57:12 61:65 62:138 63:1897 64:1321 65:576 66:417 80:32 128:43 129:108 130:19 131:44 132:12 133:1 134:171 135:9 136:22 137:127 138:204 139:46 140:141 141:161 142:63 143:41 144:143 145:11 146:146 147:136 148:212 149:95 150:46 151:212 152:424 153:31 154:25 155:77 156:82 157:115 158:73 159:65 160:42 161:60 162:72 163:160 164:122 165:91 166:185 167:140 168:120 169:34 170:276 171:2 192:5440 193:1920 194:2048 195:812 196:396 198:3758 199:3395 200:2382 201:1 202:2739 203:4580 204:3514 205:2376 206:2958 207:2737 208:3085 209:3119 210:525 211:126 212:792 213:460 214:9 215:13 216:3050 217:392 218:2 End of report

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The Cidr Report
by CIDR Report 11 Aug '01

11 Aug '01

This is an auto-generated mail on Fri Aug 10 23:00:00 PDT 2001 It is not checked before it leaves my workstation. However, hopefully you will find this report interesting and will take the time to look through this to see if you can improve the amount of aggregation you perform. Check http://www.employees.org/~tbates/cidr-report.html for a daily update of this report. NEW: Check http://www.employees.org/~tbates/cidr-report-region.html for the regional version of this report. NEW: Check http://www.employees.org/~tbates/autnums.html for a complete list of autonomous system number to name mappings as used by the CIDR-Report. The report is split into sections: 0) General Status List the route table history for the last week, list any possibly bogus routes seen and give some status on ASes. 1) Gains by aggregating at the origin AS level This lists the "Top 30" players who if they decided to aggregate their announced classful prefixes at the origin AS level could make a significant difference in the reduction of the current size of the Internet routing table. This calculation does not take into account the inclusion of holes when forming an aggregate so it is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes. Please note that this is only a snapshot but does give some indication of ASes participating in CIDR. Clearly, it is generally a good thing to see a large amont of withdrawls. 3) Interesting aggregates Interesting here means not an aggregate made as a set of classful routes. Thanks to GX Networks for giving me access to their routing tables once a day. Please send any comments about this report directly to CIDR Report <cidr-report(a)cisco.com>. ------------------------------------------------------------------------------ CIDR REPORT for 10Aug01 0) General Status Table History ------------- Date Prefixes 030801 102236 040801 102194 050801 102268 060801 102340 070801 102456 080801 102930 090801 103092 100801 102845 Check http://www.employees.org/~tbates/cidr.plot.html for a plot of the table history. Possible Bogus Routes --------------------- *** Bogus 82.105.0.0/16 from AS3269 *** Bogus 82.105.128.0/17 from AS3269 AS Summary ---------- Number of ASes in routing system: 11345 Number of ASes announcing only one prefix: 6735 (3850 cidr, 2885 classful) Largest number of cidr routes: 862 announced by AS701 Largest number of classful routes: 1396 announced by AS701 1) Gains by aggregating at the origin AS level --- 10Aug01 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS1221 1251 962 289 23.1% Telstra Pty Ltd AS701 1396 1186 210 15.0% UUNET Technologies, Inc. AS2551 748 601 147 19.7% ICG NetAhead, Inc AS4151 288 164 124 43.1% USDA AS4293 391 279 112 28.6% Cable & Wireless USA AS4755 257 147 110 42.8% Videsh Sanchar Nigam Ltd. Autonom AS6595 163 57 106 65.0% DoD Education Activity Network As AS577 294 188 106 36.1% Bell Advanced Communications Inc. AS6429 203 102 101 49.8% AT&T Chile Internet S.A. AS13999 108 12 96 88.9% Mega Cable S.A. de C.V. AS705 233 141 92 39.5% UUNET Technologies, Inc. AS7018 735 646 89 12.1% AT&T AS16473 151 65 86 57.0% Bell South AS7046 325 253 72 22.2% UUNET Technologies, Inc. AS724 222 156 66 29.7% DLA Systems Automation Center AS6471 122 60 62 50.8% ENTEL CHILE S.A. AS12302 93 32 61 65.6% MobiFon S.A. AS4200 126 66 60 47.6% Apex Global Information Services, AS1239 455 396 59 13.0% Sprint AS3464 149 91 58 38.9% Alabama SuperComputer Network AS16758 63 6 57 90.5% IKON Office Solutions AS703 301 246 55 18.3% UUNET Technologies, Inc. AS3908 325 270 55 16.9% Supernet, Inc. AS1 547 492 55 10.1% BBN Planet AS226 147 94 53 36.1% Los Nettos AS6413 65 13 52 80.0% Southern Online Systems, Inc. AS4323 242 190 52 21.5% Time Warner Communications, Inc. AS17561 113 62 51 45.1% Internet service provision to Wes AS852 214 164 50 23.4% Telus Advanced Communications AS9842 54 5 49 90.7% Lotte Data Communication Company For the rest of the previous weeks gain information please see http://www.employees.org:80/~tbates/cidr-report.html 2) Weekly Delta Please see http://www.employees.org:80/~tbates/cidr-report.html for this part of the report 3) Interesting aggregates Please see http://www.employees.org:80/~tbates/cidr-report.html for this part of the report

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Weekly Routing Table Report
by Routing Analysis 09 Aug '01

09 Aug '01

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 10 Aug, 2001 Analysis Summary ---------------- BGP routing table entries examined: 106745 Origin ASes present in the Internet Routing Table: 11395 Origin ASes announcing only one prefix: 4165 Transit ASes present in the Internet Routing Table: 1480 Average AS path length visible in the Internet Routing Table: 5.3 Max AS path length visible: 17 Illegal AS announcements present in the Routing Table: 50 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from the IANA Reserved Address blocks: 16 Number of addresses announced to Internet: 1221779990 Equivalent to 72 /8s, 210 /16s and 226 /24s Percentage of available address space announced: 33.0 Percentage of allocated address space announced: 63.5 Percentage of available address space allocated: 51.9 Total number of prefixes smaller than registry allocations: 72999 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 15952 Prefixes being announced from the APNIC address blocks: 14320 APNIC Region origin ASes present in the Internet Routing Table: 1341 APNIC Region origin ASes announcing only one prefix: 449 APNIC Region transit ASes present in the Internet Routing Table: 216 Average APNIC Region AS path length visible: 5.1 Max APNIC Region AS path length visible: 14 Number of APNIC addresses announced to Internet: 75951605 Equivalent to 4 /8s, 134 /16s and 237 /24s Percentage of available APNIC address space announced: 74.7 APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239, 17408 - 18431 APNIC Address Blocks 61/8, 202/7, 210/7 and 218/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 73296 Prefixes being announced from the ARIN address blocks: 53107 ARIN Region origin ASes present in the Internet Routing Table: 6855 ARIN Region origin ASes announcing only one prefix: 2031 ARIN Region transit ASes present in the Internet Routing Table: 695 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 17 Number of ARIN addresses announced to Internet: 202813450 Equivalent to 12 /8s, 22 /16s and 176 /24s Percentage of available ARIN address space announced: 75.6 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 - 22527 ARIN Address Blocks 24/8, 63/8, 64/6, 68/8, 199/8, 200/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 17492 Prefixes being announced from the RIPE address blocks: 13639 RIPE Region origin ASes present in the Internet Routing Table: 3206 RIPE Region origin ASes announcing only one prefix: 1685 RIPE Region transit ASes present in the Internet Routing Table: 570 Average RIPE Region AS path length visible: 5.8 Max RIPE Region AS path length visible: 15 Number of RIPE addresses announced to Internet: 104893563 Equivalent to 6 /8s, 64 /16s and 140 /24s Percentage of available RIPE address space announced: 69.5 RIPE AS Blocks 1877 - 1901, 2042, 2047, 2107 - 2136, 2585 - 2614 2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631 6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383 20480 - 21503 RIPE Address Blocks 62/8, 80/7, 193/8, 194/7, 212/7 and 217/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv Description 1221 1595 1315 Telstra Pty Ltd 2764 437 361 connect.com.au pty ltd 703 405 365 UUNET Technologies, Inc. 2907 365 1783 SINET Japan 4755 297 163 Videsh Sanchar Nigam Ltd. Aut 4134 238 1698 Data Communications Bureau 7474 238 292 Optus Communications Pty Ltd 4740 210 26 OzEmail ISP 7539 200 160 TANet2, sponsored by NSC, TAI 4766 177 1336 Korea Internet Exchange for " 7545 150 25 TPG Internet Pty Ltd 9443 143 39 Primus Telecommunications 4786 132 17 NetConnect Communications Pty 4763 120 69 Telstra New Zealand 17561 116 167 Internet service provision to 4713 115 886 NTT Communications Corporatio 9583 114 61 Satyam Infoway Ltd., 7586 112 17 Paradox Digital Pty Ltd 4812 110 278 China Telecom (Group) 7657 110 22 The Internet Group Limited RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv Description 702 692 1746 UUNET Technologies, Inc. 3301 431 918 TeliaNet Sweden 15870 406 12 Global Center Frankfurt 1257 280 521 SWIPnet Swedish IP Network 1270 236 865 UUNET Germany 3215 233 497 France Telecom / &Equant 680 229 2069 DFN-IP service G-WiN 15878 201 8 Global Center Paris 786 184 1890 The JANET IP Service 3320 183 1940 Deutsche Telekom AG 719 180 291 LANLINK autonomous system 5515 175 654 Sonera Finland Autonomous Sys 8708 152 15 Romania Data Systems S.A. 5400 137 66 Concert European Core Network 3303 132 576 Swisscom Ltd 2856 126 776 BTnet UK Regional network 8503 124 3 PCNET - PCNET DATA Network 5549 122 66 Nextra Deutschland GmbH + Co. 517 119 271 KPNQwest Germany GmbH 5511 111 170 France Telecom ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv Description 701 2301 8103 UUNET Technologies, Inc. 7018 993 7069 AT&T 1 884 8688 BBN Planet 3908 883 627 Supernet, Inc. 7046 863 1005 UUNET Technologies, Inc. 2551 798 656 ICG NetAhead, Inc 1239 683 3217 Sprint 2914 509 2296 Verio, Inc. 690 491 76 Merit Network 4293 489 99 Cable & Wireless USA 209 468 2136 Qwest 3561 411 2381 Cable & Wireless USA 2548 392 1009 Business Internet, Inc. 2149 383 296 Performance Systems, Inc. 18994 370 10 Global Crossing 3549 361 818 Global Crossing 577 349 617 Bell Advanced Communications 4323 348 318 Time Warner Communications, I 11371 340 100 Rhythms NetConnections 3967 337 456 Exodus Communication Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv Description 701 2301 8103 UUNET Technologies, Inc. 1221 1595 1315 Telstra Pty Ltd 7018 993 7069 AT&T 1 884 8688 BBN Planet 3908 883 627 Supernet, Inc. 7046 863 1005 UUNET Technologies, Inc. 2551 798 656 ICG NetAhead, Inc 702 692 1746 UUNET Technologies, Inc. 1239 683 3217 Sprint 2914 509 2296 Verio, Inc. 690 491 76 Merit Network 4293 489 99 Cable & Wireless USA 209 468 2136 Qwest 2764 437 361 connect.com.au pty ltd 3301 431 918 TeliaNet Sweden 3561 411 2381 Cable & Wireless USA 15870 406 12 Global Center Frankfurt 703 405 365 UUNET Technologies, Inc. 2548 392 1009 Business Internet, Inc. 2149 383 296 Performance Systems, Inc. List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 6971 UNALLOCATED 64.42.0.0/18 2516 Kokusai Denshin Denw 6971 UNALLOCATED 64.42.0.0/17 2516 Kokusai Denshin Denw 6971 UNALLOCATED 64.42.40.0/21 2516 Kokusai Denshin Denw 6971 UNALLOCATED 64.42.48.0/21 2914 Verio, Inc. 6971 UNALLOCATED 64.42.60.0/22 2914 Verio, Inc. 6971 UNALLOCATED 64.42.72.0/21 2914 Verio, Inc. 6971 UNALLOCATED 64.42.108.0/22 2914 Verio, Inc. 6971 UNALLOCATED 64.42.112.0/20 2914 Verio, Inc. 6971 UNALLOCATED 64.87.64.0/19 2516 Kokusai Denshin Denw 65501 PRIVATE 64.243.116.0/24 16890 K&G Network Services 2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp. 64842 PRIVATE 161.217.144.0/24 7046 UUNET Technologies, 64842 PRIVATE 161.217.145.0/24 7046 UUNET Technologies, 6971 UNALLOCATED 192.103.229.0/24 2516 Kokusai Denshin Denw 6971 UNALLOCATED 192.103.230.0/23 2516 Kokusai Denshin Denw 6971 UNALLOCATED 192.103.232.0/22 2516 Kokusai Denshin Denw 6971 UNALLOCATED 192.103.236.0/23 2516 Kokusai Denshin Denw 6971 UNALLOCATED 192.103.237.0/24 2516 Kokusai Denshin Denw 65460 PRIVATE 192.231.11.0/24 7018 AT&T 6971 UNALLOCATED 199.249.223.0/24 2516 Kokusai Denshin Denw 9501 UNALLOCATED 202.53.96.0/24 17443 International Intern 9501 UNALLOCATED 202.53.96.0/20 17443 International Intern 9501 UNALLOCATED 202.53.97.0/24 17443 International Intern 9501 UNALLOCATED 202.53.98.0/24 17443 International Intern 9501 UNALLOCATED 202.53.99.0/24 17443 International Intern 9501 UNALLOCATED 202.53.100.0/24 17443 International Intern 9501 UNALLOCATED 202.53.101.0/24 17443 International Intern 9501 UNALLOCATED 202.53.102.0/24 17443 International Intern 4834 UNALLOCATED 202.74.192.0/20 4648 Netgate 17657 UNALLOCATED 202.161.160.0/20 9653 Transit link for Hon 4831 UNALLOCATED 202.172.32.0/20 9740 Cable & Wireless Net 6971 UNALLOCATED 206.58.248.0/22 2516 Kokusai Denshin Denw 6971 UNALLOCATED 206.58.248.0/21 2516 Kokusai Denshin Denw 6971 UNALLOCATED 206.58.252.0/23 2914 Verio, Inc. 6971 UNALLOCATED 206.58.254.0/23 2914 Verio, Inc. 5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies, 65515 PRIVATE 212.110.142.0/24 5593 CRIS-AS 6971 UNALLOCATED 216.105.192.0/20 2516 Kokusai Denshin Denw 6971 UNALLOCATED 216.121.224.0/19 2516 Kokusai Denshin Denw 6971 UNALLOCATED 216.174.192.0/21 2516 Kokusai Denshin Denw 6971 UNALLOCATED 216.174.192.0/18 2516 Kokusai Denshin Denw 6971 UNALLOCATED 216.174.200.0/23 2516 Kokusai Denshin Denw 6971 UNALLOCATED 216.174.202.0/23 2914 Verio, Inc. 6971 UNALLOCATED 216.174.204.0/22 2914 Verio, Inc. 6971 UNALLOCATED 216.174.208.0/20 2516 Kokusai Denshin Denw 6971 UNALLOCATED 216.174.232.0/21 2914 Verio, Inc. 6971 UNALLOCATED 216.174.240.0/22 2914 Verio, Inc. 6971 UNALLOCATED 216.210.128.0/18 2516 Kokusai Denshin Denw 6971 UNALLOCATED 216.210.128.0/17 2516 Kokusai Denshin Denw 6971 UNALLOCATED 216.229.96.0/20 2516 Kokusai Denshin Denw Advertised Unregistered Addresses --------------------------------- Network Origin AS Description 82.105.0.0/16 3269 TELECOM ITALIA 82.105.128.0/17 3269 TELECOM ITALIA 128.65.0.0/16 3463 ACES Research Inc 132.0.0.0/10 568 DISO-UNRRA 134.137.0.0/16 400 Headquarters Standard Systems 135.0.0.0/13 10455 Lucent Technologies 137.0.0.0/13 568 DISO-UNRRA 138.94.0.0/16 1 BBN Planet 144.7.0.0/16 701 UUNET Technologies, Inc. 153.34.0.0/15 701 UUNET Technologies, Inc. 153.36.0.0/14 701 UUNET Technologies, Inc. 154.150.0.0/16 6494 IDCI 158.0.0.0/13 568 DISO-UNRRA 164.233.0.0/16 6020 DISA NETWORK SERVICES 172.32.1.0/25 1221 Telstra Pty Ltd 201.115.100.0/24 7018 AT&T Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:18 /9:5 /10:6 /11:11 /12:32 /13:84 /14:221 /15:367 /16:6930 /17:1198 /18:2277 /19:6805 /20:5606 /21:4606 /22:6870 /23:8705 /24:60660 /25:328 /26:389 /27:417 /28:416 /29:353 /30:337 /31:2 /32:102 Number of /24s announced per /8 block (Global) ---------------------------------------------- 9:3 12:396 13:10 15:1 17:6 20:2 24:661 26:1 32:35 38:7 43:1 44:2 53:2 55:1 57:13 61:63 62:138 63:1895 64:1328 65:552 66:404 80:33 128:42 129:102 130:21 131:45 132:12 133:1 134:169 135:10 136:22 137:127 138:218 139:49 140:133 141:158 142:65 143:41 144:141 145:11 146:147 147:137 148:202 149:93 150:35 151:212 152:418 153:31 154:24 155:77 156:80 157:114 158:72 159:65 160:47 161:148 162:64 163:153 164:145 165:91 166:185 167:136 168:116 169:34 170:275 171:2 192:5389 193:1913 194:2055 195:832 196:408 198:3708 199:3382 200:2365 201:1 202:2738 203:4611 204:3527 205:2373 206:2953 207:2891 208:3085 209:3057 210:520 211:126 212:791 213:453 214:8 215:13 216:3047 217:388 218:2 End of report

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Routing questions
by Genti Daci 06 Aug '01

06 Aug '01

I'd like to clarify and kindly share with you some issues coming to my network. I'm connected now with an upstream provider via fibre which has no ASno because they are single-connected. Also I'm getting the Downlink via the satellite from two providers. One of them has injected the route to internet so at this moment as the default route for outgoing requests I use the Fibre provider and the response comes from one of these Downlink only providers. At this moment I need to activate the second provider. I see that I colud not apply for ASno since my uplink provider has no ASno because it's singel-homed, while I'm multihomed on the incoming way. How should I resolve this issue? I need that both Downstream links from these providers to work as an agregate or on a load-sharing/balancing way. It came to my mind if I put 2 route objects on RIPE for the same net-num and arange with both providers to inject it on internet mesh with different or the same priority, practically this would do BGB too if I had an ASno and announce this fact of 2 Export routes via fibre provider which has no ASno at this moment. Is there any advice on this particular case you can provide to me to resolve the issue properly? Thank you in advance for your kind help, Rgds Genti

2 1

The Cidr Report
by CIDR Report 04 Aug '01

04 Aug '01

This is an auto-generated mail on Fri Aug 3 23:00:00 PDT 2001 It is not checked before it leaves my workstation. However, hopefully you will find this report interesting and will take the time to look through this to see if you can improve the amount of aggregation you perform. Check http://www.employees.org/~tbates/cidr-report.html for a daily update of this report. NEW: Check http://www.employees.org/~tbates/cidr-report-region.html for the regional version of this report. NEW: Check http://www.employees.org/~tbates/autnums.html for a complete list of autonomous system number to name mappings as used by the CIDR-Report. The report is split into sections: 0) General Status List the route table history for the last week, list any possibly bogus routes seen and give some status on ASes. 1) Gains by aggregating at the origin AS level This lists the "Top 30" players who if they decided to aggregate their announced classful prefixes at the origin AS level could make a significant difference in the reduction of the current size of the Internet routing table. This calculation does not take into account the inclusion of holes when forming an aggregate so it is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes. Please note that this is only a snapshot but does give some indication of ASes participating in CIDR. Clearly, it is generally a good thing to see a large amont of withdrawls. 3) Interesting aggregates Interesting here means not an aggregate made as a set of classful routes. Thanks to GX Networks for giving me access to their routing tables once a day. Please send any comments about this report directly to CIDR Report <cidr-report(a)cisco.com>. ------------------------------------------------------------------------------ CIDR REPORT for 03Aug01 0) General Status Table History ------------- Date Prefixes 270701 101541 280701 101451 290701 101356 300701 101504 310701 101910 010801 102050 020801 101595 030801 102236 Check http://www.employees.org/~tbates/cidr.plot.html for a plot of the table history. Possible Bogus Routes --------------------- *** Bogus 67.0.0.0/16 from AS209 *** Bogus 82.104.0.0/16 from AS3269 *** Bogus 82.104.128.0/17 from AS3269 *** Bogus 82.105.0.0/16 from AS3269 *** Bogus 82.105.128.0/17 from AS3269 AS Summary ---------- Number of ASes in routing system: 11335 Number of ASes announcing only one prefix: 6741 (3853 cidr, 2888 classful) Largest number of cidr routes: 865 announced by AS701 Largest number of classful routes: 1411 announced by AS701 1) Gains by aggregating at the origin AS level --- 03Aug01 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS1221 1321 983 338 25.6% Telstra Pty Ltd AS701 1411 1196 215 15.2% UUNET Technologies, Inc. AS2551 639 515 124 19.4% ICG NetAhead, Inc AS4151 273 152 121 44.3% USDA AS4293 386 277 109 28.2% Cable & Wireless USA AS6595 161 57 104 64.6% DoD Education Activity Network As AS6429 204 103 101 49.5% AT&T Chile Internet S.A. AS13999 104 8 96 92.3% Mega Cable S.A. de C.V. AS705 228 136 92 40.4% UUNET Technologies, Inc. AS4755 209 118 91 43.5% Videsh Sanchar Nigam Ltd. Autonom AS7018 719 630 89 12.4% AT&T AS19632 95 10 85 89.5% Metropolis Intercom S.A. AS8013 301 219 82 27.2% PSINet Ltd. Canada AS577 248 175 73 29.4% Bell Advanced Communications Inc. AS724 230 158 72 31.3% DLA Systems Automation Center AS16473 135 63 72 53.3% Bell South AS7046 313 246 67 21.4% UUNET Technologies, Inc. AS6471 123 59 64 52.0% ENTEL CHILE S.A. AS3464 152 91 61 40.1% Alabama SuperComputer Network AS4200 122 62 60 49.2% Apex Global Information Services, AS1239 457 399 58 12.7% Sprint AS12302 90 32 58 64.4% MobiFon S.A. AS16758 63 6 57 90.5% IKON Office Solutions AS1 557 502 55 9.9% BBN Planet AS3908 207 153 54 26.1% Supernet, Inc. AS226 145 92 53 36.6% Los Nettos AS6413 65 13 52 80.0% Southern Online Systems, Inc. AS703 301 250 51 16.9% UUNET Technologies, Inc. AS17561 112 61 51 45.5% Internet service provision to Wes AS852 215 165 50 23.3% Telus Advanced Communications For the rest of the previous weeks gain information please see http://www.employees.org:80/~tbates/cidr-report.html 2) Weekly Delta Please see http://www.employees.org:80/~tbates/cidr-report.html for this part of the report 3) Interesting aggregates Please see http://www.employees.org:80/~tbates/cidr-report.html for this part of the report

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Weekly Routing Table Report
by Routing Analysis 02 Aug '01

02 Aug '01

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 03 Aug, 2001 Analysis Summary ---------------- BGP routing table entries examined: 106454 Origin ASes present in the Internet Routing Table: 11411 Origin ASes announcing only one prefix: 4172 Transit ASes present in the Internet Routing Table: 1501 Average AS path length visible in the Internet Routing Table: 5.3 Max AS path length visible: 17 Illegal AS announcements present in the Routing Table: 49 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from the IANA Reserved Address blocks: 21 Number of addresses announced to Internet: 1256502062 Equivalent to 74 /8s, 228 /16s and 179 /24s Percentage of available address space announced: 33.9 Percentage of allocated address space announced: 65.8 Percentage of available address space allocated: 51.5 Total number of prefixes smaller than registry allocations: 72717 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 15901 Prefixes being announced from the APNIC address blocks: 14321 APNIC Region origin ASes present in the Internet Routing Table: 1335 APNIC Region origin ASes announcing only one prefix: 453 APNIC Region transit ASes present in the Internet Routing Table: 223 Average APNIC Region AS path length visible: 5.1 Max APNIC Region AS path length visible: 14 Number of APNIC addresses announced to Internet: 75340213 Equivalent to 4 /8s, 125 /16s and 153 /24s Percentage of available APNIC address space announced: 74.1 APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239, 17408 - 18431 APNIC Address Blocks 61/8, 202/7, 210/7 and 218/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 73008 Prefixes being announced from the ARIN address blocks: 52892 ARIN Region origin ASes present in the Internet Routing Table: 6873 ARIN Region origin ASes announcing only one prefix: 2030 ARIN Region transit ASes present in the Internet Routing Table: 700 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 17 Number of ARIN addresses announced to Internet: 201006598 Equivalent to 11 /8s, 251 /16s and 30 /24s Percentage of available ARIN address space announced: 79.9 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 - 22527 ARIN Address Blocks 24/8, 63/8, 64/6, 199/8, 200/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 17542 Prefixes being announced from the RIPE address blocks: 13622 RIPE Region origin ASes present in the Internet Routing Table: 3210 RIPE Region origin ASes announcing only one prefix: 1689 RIPE Region transit ASes present in the Internet Routing Table: 579 Average RIPE Region AS path length visible: 5.8 Max RIPE Region AS path length visible: 15 Number of RIPE addresses announced to Internet: 102604495 Equivalent to 6 /8s, 29 /16s and 158 /24s Percentage of available RIPE address space announced: 68.0 RIPE AS Blocks 1877 - 1901, 2042, 2047, 2107 - 2136, 2585 - 2614 2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631 6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383 20480 - 21503 RIPE Address Blocks 62/8, 80/7, 193/8, 194/7, 212/7 and 217/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv Description 1221 1670 1330 Telstra Pty Ltd 2764 440 362 connect.com.au pty ltd 703 406 367 UUNET Technologies, Inc. 2907 366 1768 SINET Japan 4755 289 162 Videsh Sanchar Nigam Ltd. Aut 7474 243 292 Optus Communications Pty Ltd 4134 239 1714 Data Communications Bureau 4740 216 27 OzEmail ISP 7539 209 175 TANet2, sponsored by NSC, TAI 4766 176 1336 Korea Internet Exchange for " 7545 149 27 TPG Internet Pty Ltd 9443 145 40 Primus Telecommunications 4786 130 17 NetConnect Communications Pty 4763 121 69 Telstra New Zealand 4713 115 886 NTT Communications Corporatio 17561 115 151 Internet service provision to 7586 112 17 Paradox Digital Pty Ltd 4812 111 279 China Telecom (Group) 7657 110 22 The Internet Group Limited 9583 110 61 Satyam Infoway Ltd., RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv Description 702 691 1794 UUNET Technologies, Inc. 3301 429 917 TeliaNet Sweden 15870 412 12 Global Center Frankfurt 1257 280 521 SWIPnet Swedish IP Network 1270 241 868 UUNET Germany 3215 232 497 France Telecom / &Equant 680 229 2069 DFN-IP service G-WiN 15878 205 8 Global Center Paris 719 185 291 LANLINK autonomous system 786 180 1858 The JANET IP Service 3320 179 1428 Deutsche Telekom AG 5515 175 654 Sonera Finland Autonomous Sys 8708 155 15 Romania Data Systems S.A. 5400 140 67 Concert European Core Network 3303 131 576 Swisscom Ltd 2856 126 776 BTnet UK Regional network 5549 121 66 Nextra Deutschland GmbH + Co. 517 119 271 KPNQwest Germany GmbH 8503 110 3 PCNET - PCNET DATA Network 1267 107 1989 Infostrada S.p.A. ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv Description 701 2312 8113 UUNET Technologies, Inc. 7018 969 7014 AT&T 1 894 8683 BBN Planet 7046 764 1040 UUNET Technologies, Inc. 1239 695 3248 Sprint 2551 674 648 ICG NetAhead, Inc 2914 512 2299 Verio, Inc. 690 502 93 Merit Network 4293 486 98 Cable & Wireless USA 209 470 1899 Qwest 3561 423 2397 Cable & Wireless USA 3908 422 488 Supernet, Inc. 2548 403 1010 Business Internet, Inc. 2149 399 329 Performance Systems, Inc. 18994 390 10 Global Crossing 3549 358 818 Global Crossing 4323 344 318 Time Warner Communications, I 11371 338 100 Rhythms NetConnections 15290 337 357 AT&T Canada IES 3967 334 454 Exodus Communication Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv Description 701 2312 8113 UUNET Technologies, Inc. 1221 1670 1330 Telstra Pty Ltd 7018 969 7014 AT&T 1 894 8683 BBN Planet 7046 764 1040 UUNET Technologies, Inc. 1239 695 3248 Sprint 702 691 1794 UUNET Technologies, Inc. 2551 674 648 ICG NetAhead, Inc 2914 512 2299 Verio, Inc. 690 502 93 Merit Network 4293 486 98 Cable & Wireless USA 209 470 1899 Qwest 2764 440 362 connect.com.au pty ltd 3301 429 917 TeliaNet Sweden 3561 423 2397 Cable & Wireless USA 3908 422 488 Supernet, Inc. 15870 412 12 Global Center Frankfurt 703 406 367 UUNET Technologies, Inc. 2548 403 1010 Business Internet, Inc. 2149 399 329 Performance Systems, Inc. List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 6971 UNALLOCATED 64.42.0.0/18 2516 Kokusai Denshin Denw 6971 UNALLOCATED 64.42.0.0/17 2516 Kokusai Denshin Denw 6971 UNALLOCATED 64.42.40.0/21 2516 Kokusai Denshin Denw 6971 UNALLOCATED 64.42.48.0/21 2914 Verio, Inc. 6971 UNALLOCATED 64.42.60.0/22 2914 Verio, Inc. 6971 UNALLOCATED 64.42.72.0/21 2914 Verio, Inc. 6971 UNALLOCATED 64.42.108.0/22 2914 Verio, Inc. 6971 UNALLOCATED 64.42.112.0/20 2914 Verio, Inc. 6971 UNALLOCATED 64.87.64.0/19 2516 Kokusai Denshin Denw 65501 PRIVATE 64.243.116.0/24 16890 K&G Network Services 6971 UNALLOCATED 192.103.229.0/24 2516 Kokusai Denshin Denw 6971 UNALLOCATED 192.103.230.0/23 2516 Kokusai Denshin Denw 6971 UNALLOCATED 192.103.232.0/22 2516 Kokusai Denshin Denw 6971 UNALLOCATED 192.103.236.0/23 2516 Kokusai Denshin Denw 6971 UNALLOCATED 192.103.237.0/24 2516 Kokusai Denshin Denw 1877 UNALLOCATED 192.108.196.0/24 1800 SPRINT 1877 UNALLOCATED 192.108.213.16/28 1880 Stupi, house man's p 1877 UNALLOCATED 192.108.214.0/24 1800 SPRINT 65460 PRIVATE 192.231.11.0/24 7018 AT&T 6971 UNALLOCATED 199.249.223.0/24 2516 Kokusai Denshin Denw 9501 UNALLOCATED 202.53.96.0/24 17443 International Intern 9501 UNALLOCATED 202.53.96.0/20 17443 International Intern 9501 UNALLOCATED 202.53.97.0/24 17443 International Intern 9501 UNALLOCATED 202.53.98.0/24 17443 International Intern 9501 UNALLOCATED 202.53.99.0/24 17443 International Intern 9501 UNALLOCATED 202.53.100.0/24 17443 International Intern 9501 UNALLOCATED 202.53.101.0/24 17443 International Intern 9501 UNALLOCATED 202.53.102.0/24 17443 International Intern 4834 UNALLOCATED 202.74.192.0/20 4648 Netgate 17657 UNALLOCATED 202.161.160.0/20 9653 Transit link for Hon 4831 UNALLOCATED 202.172.32.0/20 9740 Cable & Wireless Net 6971 UNALLOCATED 206.58.248.0/22 2516 Kokusai Denshin Denw 6971 UNALLOCATED 206.58.248.0/21 2516 Kokusai Denshin Denw 6971 UNALLOCATED 206.58.254.0/23 2914 Verio, Inc. 5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies, 65515 PRIVATE 212.110.142.0/24 5593 CRIS-AS 6971 UNALLOCATED 216.105.192.0/20 2516 Kokusai Denshin Denw 6971 UNALLOCATED 216.121.224.0/19 2516 Kokusai Denshin Denw 6971 UNALLOCATED 216.174.192.0/21 2516 Kokusai Denshin Denw 6971 UNALLOCATED 216.174.192.0/18 2516 Kokusai Denshin Denw 6971 UNALLOCATED 216.174.200.0/23 2516 Kokusai Denshin Denw 6971 UNALLOCATED 216.174.202.0/23 2914 Verio, Inc. 6971 UNALLOCATED 216.174.204.0/22 2914 Verio, Inc. 6971 UNALLOCATED 216.174.208.0/20 2516 Kokusai Denshin Denw 6971 UNALLOCATED 216.174.232.0/21 2914 Verio, Inc. 6971 UNALLOCATED 216.174.240.0/22 2914 Verio, Inc. 6971 UNALLOCATED 216.210.128.0/18 2516 Kokusai Denshin Denw 6971 UNALLOCATED 216.210.128.0/17 2516 Kokusai Denshin Denw 6971 UNALLOCATED 216.229.96.0/20 2516 Kokusai Denshin Denw Advertised Unregistered Addresses --------------------------------- Network Origin AS Description 82.104.0.0/16 3269 TELECOM ITALIA 82.104.128.0/17 3269 TELECOM ITALIA 82.105.0.0/16 3269 TELECOM ITALIA 82.105.128.0/17 3269 TELECOM ITALIA 99.0.0.0/8 9638 National Agricultural Coopera 128.65.0.0/16 3463 ACES Research Inc 132.0.0.0/10 568 DISO-UNRRA 134.137.0.0/16 7170 AT&T Government Markets 135.0.0.0/13 10455 Lucent Technologies 137.0.0.0/13 568 DISO-UNRRA 138.94.0.0/16 1 BBN Planet 144.7.0.0/16 701 UUNET Technologies, Inc. 153.34.0.0/15 701 UUNET Technologies, Inc. 153.36.0.0/14 701 UUNET Technologies, Inc. 154.150.0.0/16 6494 IDCI 158.0.0.0/13 568 DISO-UNRRA 164.233.0.0/16 6020 DISA NETWORK SERVICES 172.32.1.0/25 1221 Telstra Pty Ltd 172.122.0.0/16 701 UUNET Technologies, Inc. 201.115.100.0/24 7018 AT&T 220.2.228.0/24 3758 SingNet Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:20 /9:6 /10:6 /11:9 /12:32 /13:82 /14:217 /15:366 /16:6932 /17:1195 /18:2264 /19:6784 /20:5529 /21:4590 /22:6825 /23:8604 /24:60659 /25:321 /26:401 /27:419 /28:428 /29:349 /30:322 /31:0 /32:94 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 1221 1518 1670 Telstra Pty Ltd 701 1448 2312 UUNET Technologies, Inc. 7046 601 764 UUNET Technologies, Inc. 2551 567 674 ICG NetAhead, Inc 690 498 502 Merit Network 7018 489 969 AT&T 4293 469 486 Cable & Wireless USA 702 439 691 UUNET Technologies, Inc. 1 421 894 BBN Planet 15870 408 412 Global Center Frankfurt 2764 395 440 connect.com.au pty ltd 18994 388 390 Global Crossing 1239 379 695 Sprint 209 345 470 Qwest 703 336 406 UUNET Technologies, Inc. 3908 327 422 Supernet, Inc. 11371 325 338 Rhythms NetConnections 18993 305 309 Global Crossing 4323 295 344 Time Warner Communications, I 2548 293 403 Business Internet, Inc. Advertised prefixes smaller than registry allocations (per /8 block) -------------------------------------------------------------------- 4:2 6:12 9:6 12:589 13:13 15:11 17:13 20:7 24:861 25:2 26:1 32:43 35:2 38:20 40:3 43:6 44:10 45:2 47:40 52:2 53:4 55:1 56:5 57:15 61:155 62:199 63:2511 64:2746 65:999 66:818 80:50 128:64 129:178 130:54 131:68 132:41 133:1 134:246 135:11 136:37 137:182 138:233 139:92 140:259 141:224 142:119 143:86 144:210 145:33 146:202 147:178 148:255 149:127 150:62 151:262 152:941 153:38 154:26 155:142 156:93 157:164 158:115 159:83 160:101 161:145 162:150 163:254 164:212 165:256 166:261 167:171 168:209 169:55 170:425 171:20 172:1 192:38 193:2635 194:2755 195:1114 196:4 198:8 199:4079 200:2908 202:3833 203:5857 204:4447 205:2988 206:4218 207:3746 208:5205 209:4435 210:804 211:342 212:1132 213:733 216:4728 217:473 218:3 End of report

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The Cidr Report
by CIDR Report 28 Jul '01

28 Jul '01

This is an auto-generated mail on Fri Jul 27 23:00:00 PDT 2001 It is not checked before it leaves my workstation. However, hopefully you will find this report interesting and will take the time to look through this to see if you can improve the amount of aggregation you perform. The report is split into sections: 0) General Status List the route table history for the last week, list any possibly bogus routes seen and give some status on ASes. 1) Gains by aggregating at the origin AS level This lists the "Top 30" players who if they decided to aggregate their announced classful prefixes at the origin AS level could make a significant difference in the reduction of the current size of the Internet routing table. This calculation does not take into account the inclusion of holes when forming an aggregate so it is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes. Please note that this is only a snapshot but does give some indication of ASes participating in CIDR. Clearly, it is generally a good thing to see a large amont of withdrawls. 3) Interesting aggregates Interesting here means not an aggregate made as a set of classful routes. Thanks to GX Networks for giving me access to their routing tables once a day. Please send any comments about this report directly to CIDR Report <cidr-report(a)cisco.com>. Check http://www.employees.org/~tbates/cidr-report.html for a daily update of this report. NEW: Check http://www.employees.org/~tbates/cidr-report-region.html for the regional version of this report. ------------------------------------------------------------------------------ CIDR REPORT for 27Jul01 0) General Status Table History ------------- Date Prefixes 200701 100950 210701 101113 220701 101068 230701 101044 240701 101039 250701 101495 260701 101472 270701 101541 Check http://www.employees.org/~tbates/cidr.plot.html for a plot of the table history. Possible Bogus Routes --------------------- *** Bogus 82.105.0.0/16 from AS3269 *** Bogus 82.105.128.0/17 from AS3269 AS Summary ---------- Number of ASes in routing system: 11297 Number of ASes announcing only one prefix: 6733 (3865 cidr, 2868 classful) Largest number of cidr routes: 869 announced by AS701 Largest number of classful routes: 1414 announced by AS701 1) Gains by aggregating at the origin AS level --- 27Jul01 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS1221 1330 989 341 25.6% Telstra Pty Ltd AS701 1414 1199 215 15.2% UUNET Technologies, Inc. AS4293 385 276 109 28.3% Cable & Wireless USA AS6595 167 60 107 64.1% DoD Education Activity Networ AS6429 200 101 99 49.5% RdC Internet AS13999 104 8 96 92.3% Mega Cable S.A. de C.V. AS705 237 142 95 40.1% UUNET Technologies, Inc. AS4755 215 121 94 43.7% VSNL India AS7018 723 633 90 12.4% AT&T AS2551 429 342 87 20.3% NETCOM On-Line Communication AS4151 164 80 84 51.2% USDA AS8013 295 216 79 26.8% PSINet Ltd. Canada AS724 232 159 73 31.5% DLA Systems Automation Center AS577 247 174 73 29.6% Bell Canada AS7046 314 247 67 21.3% UUNET Technologies, Inc. AS16473 127 60 67 52.8% Bell South AS6471 124 60 64 51.6% ENTEL CHILE S.A. AS3464 152 90 62 40.8% Alabama SuperComputer Network AS4200 120 60 60 50.0% Apex Global Information Servi AS1239 461 402 59 12.8% Sprint ICM-Inria AS16758 63 6 57 90.5% IKON Office Solutions AS12302 89 33 56 62.9% MobiFon S.A. AS1 567 511 56 9.9% BBN Planet AS226 143 90 53 37.1% Los Nettos AS6413 65 13 52 80.0% Southern Online Systems, Inc. AS3908 200 149 51 25.5% Supernet, Inc. AS17561 112 61 51 45.5% Internet Service West Austral AS852 214 164 50 23.4% Telus Advanced Communications AS9842 54 5 49 90.7% Lotte Data Communication Comp AS4323 235 186 49 20.9% Time Warner Communications, I For the rest of the previous weeks gain information please see http://www.employees.org:80/~tbates/cidr-report.html 2) Weekly Delta Please see http://www.employees.org:80/~tbates/cidr-report.html for this part of the report 3) Interesting aggregates Please see http://www.employees.org:80/~tbates/cidr-report.html for this part of the report

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