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Weekly Routing Table Report
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 at 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 at cisco.com>.
Routing Table Report 20:00 +10GMT Fri 24 Jan, 2003
Analysis Summary
----------------
BGP routing table entries examined: 119940
Prefixes after maximum aggregation: 76698
Unique aggregates announced to Internet: 57761
Total ASes present in the Internet Routing Table: 14467
Origin-only ASes present in the Internet Routing Table: 12563
Origin ASes announcing only one prefix: 5651
Transit ASes present in the Internet Routing Table: 1904
Transit-only ASes present in the Internet Routing Table: 63
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: 12
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 27
Number of addresses announced to Internet: 1191268813
Equivalent to 71 /8s, 1 /16s and 81 /24s
Percentage of available address space announced: 32.1
Percentage of allocated address space announced: 58.9
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 55600
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20272
Total APNIC prefixes after maximum aggregation: 11943
Prefixes being announced from the APNIC address blocks: 18766
Unique aggregates announced from the APNIC address blocks: 11486
APNIC Region origin ASes present in the Internet Routing Table: 1716
APNIC Region origin ASes announcing only one prefix: 521
APNIC Region transit ASes present in the Internet Routing Table: 289
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 104757920
Equivalent to 6 /8s, 62 /16s and 122 /24s
Percentage of available APNIC address space announced: 68.9
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 61/8, 202/7, 210/7, 218/7 and 220/7
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 73977
Total ARIN prefixes after maximum aggregation: 47237
Prefixes being announced from the ARIN address blocks: 52209
Unique aggregates announced from the ARIN address blocks: 16139
ARIN Region origin ASes present in the Internet Routing Table: 8073
ARIN Region origin ASes announcing only one prefix: 2707
ARIN Region transit ASes present in the Internet Routing Table: 760
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 185415616
Equivalent to 11 /8s, 13 /16s and 55 /24s
Percentage of available ARIN address space announced: 69.1
ARIN AS Blocks 1 - 1876, 1902 - 2042, 2044 - 2046, 2048 - 2106
2138 - 2584, 2615 - 2772, 2823 - 2829, 2880 - 3153
3354 - 4607, 4865 - 5119, 5632 - 6655, 6912 - 7466
7723 - 8191, 10240 - 12287, 13312 - 15359
16384 - 17407, 18432 - 20479, 21504 - 23551
25600 - 26591, 26624 - 27647
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 199/8, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 20573
Total RIPE prefixes after maximum aggregation: 15307
Prefixes being announced from the RIPE address blocks: 17170
Unique aggregates announced from the RIPE address blocks: 11522
RIPE Region origin ASes present in the Internet Routing Table: 4293
RIPE Region origin ASes announcing only one prefix: 2340
RIPE Region transit ASes present in the Internet Routing Table: 775
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 14
Number of RIPE addresses announced to Internet: 122589508
Equivalent to 7 /8s, 78 /16s and 145 /24s
Percentage of available RIPE address space announced: 81.2
RIPE AS Blocks 1877 - 1901, 2043, 2047, 2107 - 2136, 2585 - 2614
2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631
6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383
20480 - 21503, 24576 - 25599, 28672 - 29695
RIPE Address Blocks 62/8, 80/7, 82/8, 193/8, 194/7, 212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5108
Total LACNIC prefixes after maximum aggregation: 2211
Prefixes being announced from the LACNIC address blocks: 4464
Unique aggregates announced from the LACNIC address blocks: 2936
LACNIC Region origin ASes present in the Internet Routing Table: 324
LACNIC Region origin ASes announcing only one prefix: 83
LACNIC Region transit ASes present in the Internet Routing Table: 69
Average LACNIC Region AS path length visible: 5.7
Max LACNIC Region AS path length visible: 10
Number of LACNIC addresses announced to Internet: 11842304
Equivalent to 0 /8s, 180 /16s and 179 /24s
Percentage of available LACNIC address space announced: 70.6
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1130 1185 832 Telstra Pty Ltd
703 404 368 316 UUNET
2907 392 1976 368 SINET Japan
2764 336 340 305 connect.com.au pty ltd
17557 329 24 129 Pakistan Telecom
4134 298 2505 97 Data Communications Bureau
7474 298 276 206 Optus Communications Pty Ltd
4814 261 79 15 China Telecom (Group)
4755 247 134 75 Videsh Sanchar Nigam Ltd. Aut
3786 237 772 204 DACOM Corporation
17676 229 3557 28 XTAGE CORPORATION
9583 204 33 12 Satyam Infoway Ltd.,
4766 197 2074 146 Korea Internet Exchange for "
9443 182 57 77 Primus Telecommunications
9800 167 205 41 CHINA UNICOM
4765 147 9 13 World Net & Services Co., Ltd
4716 129 737 123 TTnet
7713 129 46 15 PT TELEKOMUNIKASI INDONESIA
9768 129 384 64 Korea Telecom
9238 126 7 17 TATA ISP
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1613 9031 1188 UUNET Technologies, Inc.
7018 1438 7092 967 AT&T
3908 1198 1620 509 Supernet, Inc.
1239 965 3158 678 Sprint
852 680 1124 445 Telus Advanced Communications
1 660 8076 432 GENUITY
7843 593 399 225 Adelphia Corp.
7046 556 825 257 UUNET Technologies, Inc.
4323 527 472 167 Time Warner Communications, I
209 522 2103 331 Qwest
690 521 76 326 Merit Network
7066 492 204 253 Virginia Polytechnic Institut
6197 468 560 106 BellSouth Network Solutions,
18566 443 112 5 Covad Communications
705 431 133 187 UUNET Technologies, Inc.
2386 425 467 230 AT&T Data Communications Serv
6198 421 185 198 BellSouth Network Solutions,
4355 408 313 116 EarthLink, Inc.
3549 397 709 295 Global Crossing
15290 393 215 176 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 809 2306 672 UUNET - Commercial IP service
3215 313 803 174 France Telecom Transpac
3301 313 1141 299 TeliaNet Sweden
3320 255 1995 228 Deutsche Telekom AG
680 240 2166 237 DFN-IP service G-WiN
5515 214 783 175 Sonera Solution Autonomous Sy
1257 207 400 196 SWIPnet Swedish IP Network
786 177 1873 177 The JANET IP Service
719 170 306 130 LANLINK autonomous system
5400 160 70 97 BT Ignite European Backbone
8708 157 42 147 Romania Data Systems S.A.
20858 145 17 3 This AS will be used to conne
3303 144 517 143 Swisscom Ltd
2856 130 1302 117 BTnet UK Regional network
8220 123 174 114 COLT Internet - International
12302 123 18 30 MobiFon S.A.
3246 119 378 116 Song Networks
3269 113 754 63 TELECOM ITALIA
5511 106 193 83 France Telecom
3233 104 10 8 RNC - Romanian Natioanal R&D
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 317 98 105 ImpSat
7303 227 36 52 Telecom Argentina Stet-France
8151 207 317 113 UniNet S.A. de C.V.
6503 158 207 108 AVANTEL, S.A.
11172 158 81 32 Servicios Alestra S.A de C.V
16814 140 9 14 NSS, S.A.
13999 113 32 33 Mega Cable S.A. de C.V.
10620 102 6 31 TVCABLE BOGOTA
11340 90 2 36 Red Universitaria Nacional
6147 78 58 20 Telefonica Del Peru
1916 74 306 44 Fundacao de Amparo a Pesquisa
15311 73 27 38 Telefonica Empresas
6535 70 4 21 Chilesat Servicios Empresari
4270 68 18 10 Red de Interconexion Universi
11992 68 7 32 Integrated Systems
8065 67 6 14 Empresas Publicas de Medellin
7984 61 11 39 Global One Colombia
11830 60 4 21 Instituto Costarricense de El
15034 59 5 31 TIBA SA
4926 57 4 47 Telintar S.A.
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1198 689 Supernet, Inc.
7018 1438 471 AT&T
18566 443 438 Covad Communications
7843 593 368 Adelphia Corp.
6197 468 362 BellSouth Network Solutions,
4323 527 360 Time Warner Communications, I
7046 556 299 UUNET Technologies, Inc.
1221 1130 298 Telstra Pty Ltd
11492 299 298 Cable One
6347 373 294 SAVVIS Communications Corpora
4355 408 292 EarthLink, Inc.
1239 965 287 Sprint
4151 329 271 USDA
22927 289 267 TELEFONICA DE ARGENTINA
4814 261 246 China Telecom (Group)
705 431 244 UUNET Technologies, Inc.
376 345 241 Reseau Interordinateurs Scien
7066 492 239 Virginia Polytechnic Institut
852 680 235 Telus Advanced Communications
1 660 228 GENUITY
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p
64521 PRIVATE 198.189.23.0/24 2151 California State Uni
64521 PRIVATE 198.189.24.0/24 2151 California State Uni
64524 PRIVATE 198.189.134.0/24 2151 California State Uni
64524 PRIVATE 198.189.135.0/24 2151 California State Uni
64524 PRIVATE 198.189.136.0/24 2151 California State Uni
64524 PRIVATE 198.189.137.0/24 2151 California State Uni
64524 PRIVATE 198.189.138.0/24 2151 California State Uni
64521 PRIVATE 198.189.158.0/24 2151 California State Uni
64521 PRIVATE 198.189.235.0/24 2151 California State Uni
64521 PRIVATE 198.189.236.0/24 2151 California State Uni
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
132.0.0.0/10 568 DISO-UNRRA
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
158.0.0.0/13 568 DISO-UNRRA
178.54.59.0/24 7018 AT&T
188.1.0.0/16 680 DFN-IP service G-WiN
192.31.242.0/24 771 NASA Ames Research Center
192.44.0.0/19 702 UUNET - Commercial IP service
192.72.0.0/18 4780 Digital United Inc.
192.72.0.0/16 4780 Digital United Inc.
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.136.79.0/24 719 LANLINK autonomous system
192.136.86.0/24 719 LANLINK autonomous system
192.136.87.0/24 719 LANLINK autonomous system
192.136.88.0/24 719 LANLINK autonomous system
192.139.62.0/24 6539 GT Group Telecom Services Cor
192.140.0.0/16 5511 France Telecom
192.153.136.0/21 568 DISO-UNRRA
192.156.164.0/24 19548 Adelphia Business Solutions
192.172.0.0/19 568 DISO-UNRRA
192.243.36.0/23 2044 AUSNet, Inc.
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:17 /9:3 /10:8 /11:12 /12:44
/13:91 /14:240 /15:441 /16:7333 /17:1563 /18:2839
/19:8046 /20:7874 /21:5664 /22:8589 /23:10273 /24:66212
/25:140 /26:173 /27:94 /28:78 /29:64 /30:98
/31:0 /32:44
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 774 1198 Supernet, Inc.
7018 521 1438 AT&T
702 497 809 UUNET - Commercial IP service
690 470 521 Merit Network
18566 438 443 Covad Communications
701 424 1613 UUNET Technologies, Inc.
7066 391 492 Virginia Polytechnic Institut
7843 364 593 Adelphia Corp.
1239 354 965 Sprint
6197 344 468 BellSouth Network Solutions,
6198 335 421 BellSouth Network Solutions,
6140 305 317 ImpSat
11492 298 299 Cable One
22927 288 289 TELEFONICA DE ARGENTINA
7046 253 556 UUNET Technologies, Inc.
3215 240 313 France Telecom Transpac
20115 230 351 Charter Communications
2386 228 425 AT&T Data Communications Serv
4355 227 408 EarthLink, Inc.
7303 226 227 Telecom Argentina Stet-France
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:637 13:1 15:6 17:3 20:7 24:790
25:1 32:82 34:1 38:39 40:19 44:1
55:1 57:16 61:470 62:481 63:1895 64:1364
65:1823 66:1397 67:203 68:230 69:37 80:322
81:82 128:124 129:188 130:22 131:73 132:11
133:4 134:144 135:7 136:204 137:113 138:205
139:60 140:123 141:103 142:96 143:44 144:153
145:16 146:255 147:123 148:265 149:77 150:42
151:94 152:259 153:41 154:7 155:105 156:50
157:62 158:119 159:136 160:29 161:57 162:133
163:81 164:276 165:136 166:85 167:303 168:398
169:57 170:291 171:8 178:1 192:5361 193:2401
194:1969 195:906 196:454 198:3589 199:3033 200:2781
202:3659 203:5041 204:3026 205:2126 206:2357 207:2432
208:2670 209:2723 210:700 211:328 212:936 213:705
214:15 215:23 216:3199 217:559 218:71 219:16
220:44
End of report
-----
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