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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

1 0

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

1 0

Weekly Routing Table Report
by Routing Analysis 26 Jul '01

26 Jul '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 27 Jul, 2001 Analysis Summary ---------------- BGP routing table entries examined: 105607 Origin ASes present in the Internet Routing Table: 11377 Origin ASes announcing only one prefix: 4157 Transit ASes present in the Internet Routing Table: 1500 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: 55 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from the IANA Reserved Address blocks: 18 Number of addresses announced to Internet: 1246191288 Equivalent to 74 /8s, 71 /16s and 94 /24s Percentage of available address space announced: 33.6 Percentage of allocated address space announced: 65.3 Percentage of available address space allocated: 51.5 Total number of prefixes smaller than registry allocations: 71945 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 15682 Prefixes being announced from the APNIC address blocks: 14143 APNIC Region origin ASes present in the Internet Routing Table: 1330 APNIC Region origin ASes announcing only one prefix: 460 APNIC Region transit ASes present in the Internet Routing Table: 222 Average APNIC Region AS path length visible: 5.1 Max APNIC Region AS path length visible: 14 Number of APNIC addresses announced to Internet: 74489733 Equivalent to 4 /8s, 112 /16s and 159 /24s Percentage of available APNIC address space announced: 73.2 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: 72516 Prefixes being announced from the ARIN address blocks: 52358 ARIN Region origin ASes present in the Internet Routing Table: 6855 ARIN Region origin ASes announcing only one prefix: 2012 ARIN Region transit ASes present in the Internet Routing Table: 707 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 12 Number of ARIN addresses announced to Internet: 200791200 Equivalent to 11 /8s, 247 /16s and 212 /24s Percentage of available ARIN address space announced: 79.8 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, 199/8, 200/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 17406 Prefixes being announced from the RIPE address blocks: 13497 RIPE Region origin ASes present in the Internet Routing Table: 3208 RIPE Region origin ASes announcing only one prefix: 1685 RIPE Region transit ASes present in the Internet Routing Table: 573 Average RIPE Region AS path length visible: 5.8 Max RIPE Region AS path length visible: 17 Number of RIPE addresses announced to Internet: 102374143 Equivalent to 6 /8s, 26 /16s and 26 /24s Percentage of available RIPE address space announced: 67.8 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 1669 1330 Telstra 2764 442 362 connect.com.au pty ltd 703 402 367 UUNET Technologies, Inc. 2907 367 1784 SINET Japan 4755 298 163 VSNL India 7474 245 293 Optus Communications 4134 233 1618 Data Communications Bureau 7539 209 175 TANet2, sponsored by NSC, TAI 4766 176 1336 KORnet Powered BY Korea Telec 7545 145 21 TPG Internet Pty Ltd 9443 143 40 INTERNETPRIMUS-AS-A 4786 129 17 NetConnect Communications Pty 4763 119 69 Telstra New Zealand 17561 115 151 Internet service provision to 7586 114 17 Paradox Digital Pty. Ltd 4812 111 279 Shanghai Telecom Company 7657 111 22 The Internet Group Limited 4713 109 878 NTT-OCNET 4740 109 15 Ozemail 4732 108 358 DDI Corporation RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv Description 702 680 1831 UUNET Technologies, Inc. 3301 430 918 TeliaNet Sweden 15870 412 12 Global Center Frankfurt 1257 280 520 Swipnet AB 1270 244 869 UUNET Germany 680 229 2069 Deutschef Forschurgsnetz 3215 227 496 RAIN 15878 202 8 Global Center Paris 719 185 291 LANLINK 786 184 1890 JANET IP Service 5515 176 654 Sonera Finland 3320 175 1411 Deutsche Telekom AG 8708 153 15 Romania Data System 5400 139 66 Concert Internet Plus Europea 3303 131 576 Swisscom 517 125 272 Xlink 2856 123 776 BTnet UK Regional network 5549 117 66 Seicom Computer Gmb 8503 108 3 PCNET - PCNET DATA Network 1267 107 1989 IUnet S.p.A ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv Description 701 2309 8321 UUNET Technologies, Inc. 7018 980 7031 AT&T 1 902 8699 BBN Planet 7046 755 1072 UUNET Technologies, Inc. 1239 694 3296 Sprint ICM-Inria 2914 516 2319 Verio, Inc. 690 507 77 Merit Network 4293 484 98 Cable & Wireless USA 209 476 1868 Qwest 2551 452 651 NETCOM On-Line Communication 3561 430 2430 Cable & Wireless USA 3908 415 487 Supernet, Inc. 2548 413 1010 Digital Express Group, Inc. 2149 408 345 Performance Systems, Inc. 18994 392 10 Global Crossing 3549 357 815 Global Crossing 4323 339 314 Time Warner Communications, I 11371 337 100 Rhythms NetConnections 3967 334 454 Exodus Communication 15290 327 340 AT&T Canada IES Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv Description 701 2309 8321 UUNET Technologies, Inc. 1221 1669 1330 Telstra 7018 980 7031 AT&T 1 902 8699 BBN Planet 7046 755 1072 UUNET Technologies, Inc. 1239 694 3296 Sprint ICM-Inria 702 680 1831 UUNET Technologies, Inc. 2914 516 2319 Verio, Inc. 690 507 77 Merit Network 4293 484 98 Cable & Wireless USA 209 476 1868 Qwest 2551 452 651 NETCOM On-Line Communication 2764 442 362 connect.com.au pty ltd 3301 430 918 TeliaNet Sweden 3561 430 2430 Cable & Wireless USA 3908 415 487 Supernet, Inc. 2548 413 1010 Digital Express Group, Inc. 15870 412 12 Global Center Frankfurt 2149 408 345 Performance Systems, Inc. 703 402 367 UUNET Technologies, Inc. List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 17680 UNALLOCATED 61.213.48.0/20 10009 ARE Works,Inc. 18541 UNALLOCATED 63.166.66.0/24 1239 Sprint ICM-Inria 18541 UNALLOCATED 63.169.205.0/24 1239 Sprint ICM-Inria 19714 UNALLOCATED 64.166.88.0/24 701 UUNET Technologies, 65501 PRIVATE 64.243.116.0/24 16890 K&G Network Services 19714 UNALLOCATED 65.200.78.0/23 701 UUNET Technologies, 2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp. 1877 UNALLOCATED 192.108.196.0/24 1800 SPRINT 1877 UNALLOCATED 192.108.209.0/24 1880 Stupi, house man's 1877 UNALLOCATED 192.108.210.0/24 1880 Stupi, house man's 1877 UNALLOCATED 192.108.214.0/24 1800 SPRINT 19062 UNALLOCATED 192.197.96.0/20 1691 BCTEL Advanced Commu 65460 PRIVATE 192.231.11.0/24 7018 AT&T 5757 UNALLOCATED 192.239.13.0/24 701 UUNET Technologies, 20938 UNALLOCATED 195.13.38.0/23 8246 Internet Technologie 17803 UNALLOCATED 202.68.128.0/19 4755 VSNL India 17803 UNALLOCATED 202.68.134.0/24 4755 VSNL India 17803 UNALLOCATED 202.68.135.0/24 4755 VSNL India 17803 UNALLOCATED 202.68.136.0/24 4755 VSNL India 17803 UNALLOCATED 202.68.138.0/24 4755 VSNL India 17803 UNALLOCATED 202.68.139.0/24 4755 VSNL India 17803 UNALLOCATED 202.68.140.0/24 4755 VSNL India 17803 UNALLOCATED 202.68.145.0/24 4755 VSNL India 17803 UNALLOCATED 202.68.146.0/24 4755 VSNL India 17803 UNALLOCATED 202.68.147.0/24 4755 VSNL India 17803 UNALLOCATED 202.68.148.0/24 4755 VSNL India 17803 UNALLOCATED 202.68.150.0/24 4755 VSNL India 17803 UNALLOCATED 202.157.190.0/23 4755 VSNL India 17657 UNALLOCATED 202.161.160.0/20 9653 AGNS HongKong NET 4831 UNALLOCATED 202.172.32.0/20 9740 Cable & Wireless Net 21637 UNALLOCATED 204.1.98.0/24 2914 Verio, Inc. 21637 UNALLOCATED 204.1.106.0/24 2914 Verio, Inc. 21637 UNALLOCATED 204.1.107.0/24 2914 Verio, Inc. 21637 UNALLOCATED 204.1.108.0/24 2914 Verio, Inc. 21637 UNALLOCATED 204.1.109.0/24 2914 Verio, Inc. 21637 UNALLOCATED 204.27.68.0/24 2914 Verio, Inc. 21637 UNALLOCATED 204.27.76.0/24 2914 Verio, Inc. 21637 UNALLOCATED 204.27.94.0/24 2914 Verio, Inc. 21637 UNALLOCATED 204.27.95.0/24 2914 Verio, Inc. 21637 UNALLOCATED 204.27.96.0/24 2914 Verio, Inc. 21637 UNALLOCATED 204.27.100.0/24 2914 Verio, Inc. 21637 UNALLOCATED 204.27.104.0/24 2914 Verio, Inc. 21637 UNALLOCATED 204.27.106.0/24 2914 Verio, Inc. 21637 UNALLOCATED 204.27.107.0/24 2914 Verio, Inc. 21637 UNALLOCATED 204.27.109.0/24 2914 Verio, Inc. 21637 UNALLOCATED 204.27.115.0/24 2914 Verio, Inc. 20413 UNALLOCATED 204.108.128.0/17 6347 SAVVIS Communication 19551 UNALLOCATED 204.229.224.0/22 6226 US West Communicatio 20413 UNALLOCATED 207.8.234.0/24 6347 SAVVIS Communication 5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies, 20413 UNALLOCATED 207.106.119.0/24 6347 SAVVIS Communication 19322 UNALLOCATED 208.44.17.0/24 209 Qwest 21879 UNALLOCATED 208.253.207.96/27 16467 NextWeb, Inc. 21879 UNALLOCATED 209.81.62.0/24 701 UUNET Technologies, 65515 PRIVATE 212.110.142.0/24 5593 CRIS-AS Advertised Unregistered Addresses --------------------------------- Network Origin AS Description 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 US DOD NIC Unregistered 172.32.1.0/25 1221 Telstra 172.122.0.0/16 701 UUNET Technologies, Inc. 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 /8:20 /9:5 /10:6 /11:9 /12:32 /13:82 /14:218 /15:362 /16:6921 /17:1189 /18:2252 /19:6762 /20:5492 /21:4560 /22:6837 /23:8663 /24:59919 /25:291 /26:363 /27:430 /28:435 /29:352 /30:336 /31:1 /32:70 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 1221 1516 1669 Telstra 701 1444 2309 UUNET Technologies, Inc. 7046 589 755 UUNET Technologies, Inc. 690 504 507 Merit Network 7018 500 980 AT&T 4293 468 484 Cable & Wireless USA 702 429 680 UUNET Technologies, Inc. 1 423 902 BBN Planet 15870 408 412 Global Center Frankfurt 2764 397 442 connect.com.au pty ltd 18994 390 392 Global Crossing 1239 380 694 Sprint ICM-Inria 209 356 476 Qwest 2551 342 452 NETCOM On-Line Communication 703 333 402 UUNET Technologies, Inc. 11371 324 337 Rhythms NetConnections 3908 320 415 Supernet, Inc. 18993 305 309 Global Crossing 2548 303 413 Digital Express Group, Inc. 4323 290 339 Time Warner Communications, I Advertised prefixes smaller than registry allocations (per /8 block) -------------------------------------------------------------------- 4:1 6:12 9:6 12:585 13:13 15:11 17:13 20:7 24:850 26:1 32:43 35:3 38:20 40:2 43:4 44:10 45:1 47:40 52:2 53:4 55:1 56:5 57:15 61:137 62:196 63:2520 64:2753 65:1036 66:773 80:44 128:61 129:182 130:54 131:67 132:42 133:1 134:240 135:13 136:37 137:180 138:233 139:86 140:259 141:225 142:118 143:98 144:209 145:32 146:195 147:179 148:250 149:124 150:63 151:264 152:965 153:40 154:16 155:141 156:92 157:156 158:114 159:83 160:93 161:146 162:157 163:248 164:206 165:252 166:262 167:173 168:208 169:54 170:449 171:20 172:1 192:32 193:2624 194:2768 195:1046 196:3 198:6 199:3942 200:2751 202:3775 203:5804 204:4404 205:2948 206:4144 207:3688 208:5215 209:4415 210:795 211:335 212:1121 213:711 216:4760 217:461 218:3 End of report

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The Cidr Report
by CIDR Report 21 Jul '01

21 Jul '01

This is an auto-generated mail on Fri Jul 20 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. ------------------------------------------------------------------------------ CIDR REPORT for 20Jul01 0) General Status Table History ------------- Date Prefixes 130701 100848 140701 100609 150701 101337 160701 100485 170701 100311 180701 100565 190701 100739 200701 100950 Check http://www.employees.org/~tbates/cidr.plot.html for a plot of the table history. Possible Bogus Routes --------------------- AS Summary ---------- Number of ASes in routing system: 11241 Number of ASes announcing only one prefix: 6694 (3840 cidr, 2854 classful) Largest number of cidr routes: 865 announced by AS701 Largest number of classful routes: 1414 announced by AS701 1) Gains by aggregating at the origin AS level --- 20Jul01 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS1221 1347 1001 346 25.7% Telstra Pty Ltd AS701 1414 1199 215 15.2% UUNET Technologies, Inc. AS4293 391 280 111 28.4% Cable & Wireless USA AS6595 169 59 110 65.1% DoD Education Activity Networ AS6429 199 102 97 48.7% RdC Internet AS13999 104 8 96 92.3% Mega Cable S.A. de C.V. AS705 232 137 95 40.9% UUNET Technologies, Inc. AS7018 726 634 92 12.7% AT&T AS4755 211 121 90 42.7% VSNL India AS4151 161 79 82 50.9% USDA AS8013 298 217 81 27.2% PSINet Ltd. Canada AS577 246 173 73 29.7% Bell Canada AS724 230 158 72 31.3% DLA Systems Automation Center AS7046 313 249 64 20.4% UUNET Technologies, Inc. AS6471 122 58 64 52.5% ENTEL CHILE S.A. AS16473 121 58 63 52.1% Bell South AS4200 131 70 61 46.6% Apex Global Information Servi AS3464 148 91 57 38.5% Alabama SuperComputer Network AS16758 63 6 57 90.5% IKON Office Solutions AS1 569 513 56 9.8% BBN Planet AS1239 447 392 55 12.3% Sprint ICM-Inria AS6413 65 13 52 80.0% Southern Online Systems, Inc. AS3908 203 152 51 25.1% Supernet, Inc. AS17561 112 61 51 45.5% Internet Service West Austral AS852 213 163 50 23.5% Telus Advanced Communications AS4323 235 185 50 21.3% Time Warner Communications, I AS2149 320 270 50 15.6% Performance Systems, Inc. AS12302 83 33 50 60.2% MobiFon S.A. AS703 268 220 48 17.9% UUNET Technologies, Inc. AS5106 81 33 48 59.3% Ameritech Advanced Data Servi 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 19 Jul '01

19 Jul '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 20 Jul, 2001 Analysis Summary ---------------- BGP routing table entries examined: 104573 Origin ASes present in the Internet Routing Table: 11312 Origin ASes announcing only one prefix: 4160 Transit ASes present in the Internet Routing Table: 1514 Average AS path length visible in the Internet Routing Table: 5.3 Max AS path length visible: 15 Illegal AS announcements present in the Routing Table: 19 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: 1240384498 Equivalent to 73 /8s, 238 /16s and 195 /24s Percentage of available address space announced: 33.5 Percentage of allocated address space announced: 65.0 Percentage of available address space allocated: 51.5 Total number of prefixes smaller than registry allocations: 71049 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 15502 Prefixes being announced from the APNIC address blocks: 13946 APNIC Region origin ASes present in the Internet Routing Table: 1329 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: 14 Number of APNIC addresses announced to Internet: 74027962 Equivalent to 4 /8s, 105 /16s and 147 /24s Percentage of available APNIC address space announced: 72.8 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: 71715 Prefixes being announced from the ARIN address blocks: 51695 ARIN Region origin ASes present in the Internet Routing Table: 6798 ARIN Region origin ASes announcing only one prefix: 2013 ARIN Region transit ASes present in the Internet Routing Table: 710 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 13 Number of ARIN addresses announced to Internet: 201112880 Equivalent to 11 /8s, 252 /16s and 189 /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: 17353 Prefixes being announced from the RIPE address blocks: 13448 RIPE Region origin ASes present in the Internet Routing Table: 3195 RIPE Region origin ASes announcing only one prefix: 1684 RIPE Region transit ASes present in the Internet Routing Table: 582 Average RIPE Region AS path length visible: 5.8 Max RIPE Region AS path length visible: 15 Number of RIPE addresses announced to Internet: 101605394 Equivalent to 6 /8s, 14 /16s and 96 /24s Percentage of available RIPE address space announced: 67.3 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 1673 1346 Telstra 2764 433 345 connect.com.au pty ltd 703 401 383 UUNET Technologies, Inc. 2907 367 1784 SINET Japan 4755 283 158 VSNL India 7474 242 292 Optus Communications 4134 232 1610 Data Communications Bureau 7539 207 165 TANet2, sponsored by NSC, TAI 4766 176 1336 KORnet Powered BY Korea Telec 7545 145 21 TPG Internet Pty Ltd 9443 134 38 INTERNETPRIMUS-AS-A 4786 130 17 NetConnect Communications Pty 4763 118 69 Telstra New Zealand 17561 115 151 Internet service provision to 7657 113 22 The Internet Group Limited 7586 112 17 Paradox Digital Pty. Ltd 4812 111 279 Shanghai Telecom Company 4740 110 15 Ozemail 4713 109 878 NTT-OCNET 9583 108 60 Satyam Infoway Ltd., RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv Description 702 679 1846 UUNET Technologies, Inc. 3301 430 918 TeliaNet Sweden 15870 417 12 Global Center Frankfurt 1257 280 504 Swipnet AB 1270 245 868 UUNET Germany 680 232 2069 Deutschef Forschurgsnetz 3215 220 495 RAIN 15878 202 8 Global Center Paris 719 187 291 LANLINK 786 184 1890 JANET IP Service 5515 174 654 Sonera Finland 3320 170 1410 Deutsche Telekom AG 8708 151 15 Romania Data System 5400 139 66 Concert Internet Plus Europea 3303 130 575 Swisscom 517 124 272 Xlink 2856 123 776 BTnet UK Regional network 5549 117 66 Seicom Computer Gmb 1267 107 1989 IUnet S.p.A 8503 106 3 PCNET - PCNET DATA Network ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv Description 701 2318 8313 UUNET Technologies, Inc. 7018 971 6988 AT&T 1 906 8715 BBN Planet 7046 744 1055 UUNET Technologies, Inc. 1239 686 3295 Sprint ICM-Inria 690 525 94 Merit Network 2914 518 2317 Verio, Inc. 4293 491 99 Cable & Wireless USA 209 473 1883 Qwest 3561 433 2450 Cable & Wireless USA 3908 420 583 Supernet, Inc. 2548 415 1012 Digital Express Group, Inc. 2149 414 377 Performance Systems, Inc. 18994 397 10 Global Crossing 4323 361 300 Time Warner Communications, I 3549 351 809 Global Crossing 11371 337 100 Rhythms NetConnections 3967 331 450 Exodus Communication 15290 321 340 AT&T Canada IES 6347 315 353 SAVVIS Communications Corpora Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv Description 701 2318 8313 UUNET Technologies, Inc. 1221 1673 1346 Telstra 7018 971 6988 AT&T 1 906 8715 BBN Planet 7046 744 1055 UUNET Technologies, Inc. 1239 686 3295 Sprint ICM-Inria 702 679 1846 UUNET Technologies, Inc. 690 525 94 Merit Network 2914 518 2317 Verio, Inc. 4293 491 99 Cable & Wireless USA 209 473 1883 Qwest 2764 433 345 connect.com.au pty ltd 3561 433 2450 Cable & Wireless USA 3301 430 918 TeliaNet Sweden 3908 420 583 Supernet, Inc. 15870 417 12 Global Center Frankfurt 2548 415 1012 Digital Express Group, Inc. 2149 414 377 Performance Systems, Inc. 703 401 383 UUNET Technologies, Inc. 18994 397 10 Global Crossing List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 18541 UNALLOCATED 63.166.66.0/24 1239 Sprint ICM-Inria 18541 UNALLOCATED 63.169.205.0/24 1239 Sprint ICM-Inria 578 UNALLOCATED 64.230.242.0/28 577 Bell Canada 578 UNALLOCATED 64.230.242.16/28 577 Bell Canada 65501 PRIVATE 64.243.116.0/24 16890 K&G Network Services 2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp. 1877 UNALLOCATED 192.108.196.0/24 1800 SPRINT 1877 UNALLOCATED 192.108.209.0/24 1880 Stupi, house man's 1877 UNALLOCATED 192.108.210.0/24 1880 Stupi, house man's 1877 UNALLOCATED 192.108.214.0/24 1800 SPRINT 19062 UNALLOCATED 192.197.96.0/20 1691 BCTEL Advanced Commu 65460 PRIVATE 192.231.11.0/24 7018 AT&T 5757 UNALLOCATED 192.239.13.0/24 701 UUNET Technologies, 17657 UNALLOCATED 202.161.160.0/20 9653 AGNS HongKong NET 4831 UNALLOCATED 202.172.32.0/20 9740 Cable & Wireless Net 19551 UNALLOCATED 204.229.224.0/22 6226 US West Communicatio 5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies, 19322 UNALLOCATED 208.44.17.0/24 209 Qwest 65515 PRIVATE 212.110.142.0/24 5593 CRIS-AS Advertised Unregistered Addresses --------------------------------- Network Origin AS Description 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 US DOD NIC Unregistered 172.32.1.0/25 1221 Telstra 172.122.0.0/16 701 UUNET Technologies, Inc. 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 /8:20 /9:5 /10:6 /11:8 /12:32 /13:82 /14:215 /15:353 /16:6914 /17:1177 /18:2244 /19:6753 /20:5408 /21:4515 /22:6806 /23:8631 /24:59130 /25:289 /26:361 /27:429 /28:431 /29:355 /30:336 /31:1 /32:72 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 1221 1518 1673 Telstra 701 1454 2318 UUNET Technologies, Inc. 7046 577 744 UUNET Technologies, Inc. 690 521 525 Merit Network 7018 490 971 AT&T 4293 475 491 Cable & Wireless USA 702 428 679 UUNET Technologies, Inc. 1 426 906 BBN Planet 15870 413 417 Global Center Frankfurt 18994 395 397 Global Crossing 2764 389 433 connect.com.au pty ltd 1239 369 686 Sprint ICM-Inria 209 351 473 Qwest 703 331 401 UUNET Technologies, Inc. 11371 324 337 Rhythms NetConnections 3908 319 420 Supernet, Inc. 4323 314 361 Time Warner Communications, I 18993 308 312 Global Crossing 2548 304 415 Digital Express Group, Inc. 8013 278 308 PSINet Ltd. Canada Advertised prefixes smaller than registry allocations (per /8 block) -------------------------------------------------------------------- 4:1 9:6 12:579 13:13 15:11 17:11 20:7 24:846 26:1 32:42 35:4 38:30 40:2 43:4 44:5 45:1 47:40 52:2 53:4 55:1 56:5 57:15 61:117 62:197 63:2512 64:2746 65:1001 66:758 80:47 128:61 129:188 130:54 131:67 132:41 133:1 134:231 135:11 136:36 137:178 138:233 139:86 140:257 141:225 142:113 143:98 144:198 145:32 146:199 147:180 148:239 149:124 150:63 151:261 152:984 153:40 154:21 155:144 156:92 157:156 158:113 159:82 160:85 161:146 162:160 163:237 164:167 165:250 166:260 167:158 168:215 169:54 170:446 171:20 172:1 192:32 193:2607 194:2750 195:1078 196:3 198:4 199:3881 200:2756 202:3739 203:5755 204:4372 205:2926 206:4110 207:3637 208:5200 209:4100 210:777 211:293 212:1124 213:697 216:4751 217:441 218:3 End of report

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