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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 10 Jan, 2003
Analysis Summary
----------------
BGP routing table entries examined: 119499
Prefixes after maximum aggregation: 76354
Unique aggregates announced to Internet: 57087
Total ASes present in the Internet Routing Table: 14370
Origin-only ASes present in the Internet Routing Table: 12486
Origin ASes announcing only one prefix: 5640
Transit ASes present in the Internet Routing Table: 1884
Transit-only ASes present in the Internet Routing Table: 59
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: 3
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 30
Number of addresses announced to Internet: 1190295577
Equivalent to 70 /8s, 242 /16s and 120 /24s
Percentage of available address space announced: 32.1
Percentage of allocated address space announced: 58.8
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 55525
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19825
Total APNIC prefixes after maximum aggregation: 11873
Prefixes being announced from the APNIC address blocks: 18310
Unique aggregates announced from the APNIC address blocks: 11304
APNIC Region origin ASes present in the Internet Routing Table: 1704
APNIC Region origin ASes announcing only one prefix: 525
APNIC Region transit ASes present in the Internet Routing Table: 285
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 103693728
Equivalent to 6 /8s, 46 /16s and 61 /24s
Percentage of available APNIC address space announced: 68.2
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: 74016
Total ARIN prefixes after maximum aggregation: 47035
Prefixes being announced from the ARIN address blocks: 51756
Unique aggregates announced from the ARIN address blocks: 15848
ARIN Region origin ASes present in the Internet Routing Table: 8041
ARIN Region origin ASes announcing only one prefix: 2729
ARIN Region transit ASes present in the Internet Routing Table: 757
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 185319408
Equivalent to 11 /8s, 11 /16s and 191 /24s
Percentage of available ARIN address space announced: 69.0
ARIN AS Blocks 1 - 1876, 1902 - 2042, 2044 - 2046, 2048 - 2106
2138 - 2584, 2615 - 2772, 2823 - 2829, 2880 - 3153
3354 - 4607, 4865 - 5119, 5632 - 6655, 6912 - 7466
7723 - 8191, 10240 - 12287, 13312 - 15359
16384 - 17407, 18432 - 20479, 21504 - 23551
25600 - 26591, 26624 - 27647
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 199/8, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 20520
Total RIPE prefixes after maximum aggregation: 15242
Prefixes being announced from the RIPE address blocks: 17106
Unique aggregates announced from the RIPE address blocks: 11378
RIPE Region origin ASes present in the Internet Routing Table: 4244
RIPE Region origin ASes announcing only one prefix: 2307
RIPE Region transit ASes present in the Internet Routing Table: 767
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 14
Number of RIPE addresses announced to Internet: 122081920
Equivalent to 7 /8s, 70 /16s and 210 /24s
Percentage of available RIPE address space announced: 80.9
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: 5137
Total LACNIC prefixes after maximum aggregation: 2204
Prefixes being announced from the LACNIC address blocks: 4467
Unique aggregates announced from the LACNIC address blocks: 2933
LACNIC Region origin ASes present in the Internet Routing Table: 323
LACNIC Region origin ASes announcing only one prefix: 79
LACNIC Region transit ASes present in the Internet Routing Table: 68
Average LACNIC Region AS path length visible: 5.7
Max LACNIC Region AS path length visible: 11
Number of LACNIC addresses announced to Internet: 11853312
Equivalent to 0 /8s, 180 /16s and 222 /24s
Percentage of available LACNIC address space announced: 70.7
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 1137 1185 838 Telstra Pty Ltd
703 396 364 313 UUNET
2907 356 1768 333 SINET Japan
2764 339 341 308 connect.com.au pty ltd
17557 324 23 127 Pakistan Telecom
7474 313 281 205 Optus Communications Pty Ltd
4134 290 2408 90 Data Communications Bureau
4755 252 133 73 Videsh Sanchar Nigam Ltd. Aut
4814 251 79 15 China Telecom (Group)
3786 235 772 204 DACOM Corporation
17676 231 3618 24 XTAGE CORPORATION
4766 200 2075 149 Korea Internet Exchange for "
9583 190 33 12 Satyam Infoway Ltd.,
9443 187 57 77 Primus Telecommunications
9800 165 203 42 CHINA UNICOM
4716 129 722 123 TTnet
7657 124 26 87 The Internet Group Limited
9768 124 384 63 Korea Telecom
4739 121 56 111 Commerical Internet eXchange
9238 116 7 17 TATA ISP
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1629 9047 1200 UUNET Technologies, Inc.
7018 1478 7855 972 AT&T
3908 1187 1635 498 Supernet, Inc.
1239 972 3145 680 Sprint
1 664 8076 437 GENUITY
852 629 1140 446 Telus Advanced Communications
7843 628 407 268 Adelphia Corp.
7046 552 841 262 UUNET Technologies, Inc.
4323 528 488 168 Time Warner Communications, I
209 521 2118 329 Qwest
690 513 75 319 Merit Network
7066 490 204 252 Virginia Polytechnic Institut
6197 458 561 104 BellSouth Network Solutions,
705 427 133 186 UUNET Technologies, Inc.
6198 423 182 196 BellSouth Network Solutions,
18566 421 96 5 Covad Communications
4355 407 313 118 EarthLink, Inc.
3549 402 709 295 Global Crossing
3561 395 2211 324 Cable & Wireless USA
15290 393 215 175 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 806 2290 669 UUNET - Commercial IP service
3301 341 1141 297 TeliaNet Sweden
3215 315 819 175 France Telecom Transpac
3320 258 1996 230 Deutsche Telekom AG
680 237 2150 234 DFN-IP service G-WiN
5515 213 783 174 Sonera Solution Autonomous Sy
1257 212 416 201 SWIPnet Swedish IP Network
719 200 306 129 LANLINK autonomous system
786 176 1873 176 The JANET IP Service
5400 160 68 97 BT Ignite European Backbone
8708 155 42 146 Romania Data Systems S.A.
20858 148 17 4 This AS will be used to conne
3303 144 517 143 Swisscom Ltd
2856 131 1302 118 BTnet UK Regional network
8220 124 174 114 COLT Internet - International
12302 123 18 30 MobiFon S.A.
3246 118 378 115 Song Networks
3269 112 754 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 316 98 104 ImpSat USA, Inc.
7303 226 36 52 Telecom Argentina Stet-France
8151 208 332 113 UniNet S.A. de C.V.
11172 175 87 34 Servicios Alestra S.A de C.V
6503 156 191 108 AVANTEL, S.A.
16814 140 9 14 NSS, S.A.
13999 121 35 29 Mega Cable S.A. de C.V.
10620 98 6 32 TVCABLE BOGOTA
11340 80 2 31 Red Universitaria Nacional
6147 77 58 20 Telefonica Del Peru
1916 74 306 44 Fundacao de Amparo a Pesquisa
6535 72 5 16 Chilesat Servicios Empresari
15311 72 27 37 Telefonica Empresas
11992 68 7 31 Integrated Systems
4270 67 18 10 Red de Interconexion Universi
8065 67 6 14 Empresas Publicas de Medellin
7984 62 11 40 Global One Colombia
15034 58 5 33 TIBA SA
4926 57 4 47 Telintar S.A.
7927 57 5 40 Global One Venezuela
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1187 689 Supernet, Inc.
7018 1478 506 AT&T
18566 421 416 Covad Communications
7843 628 360 Adelphia Corp.
4323 528 360 Time Warner Communications, I
6197 458 354 BellSouth Network Solutions,
1580 315 302 ANOSCEUR
1221 1137 299 Telstra Pty Ltd
1239 972 292 Sprint
6347 370 291 SAVVIS Communications Corpora
7046 552 290 UUNET Technologies, Inc.
4355 407 289 EarthLink, Inc.
11492 284 283 Cable One
4151 329 271 USDA
22927 289 267 TELEFONICA DE ARGENTINA
705 427 241 UUNET Technologies, Inc.
376 346 241 Reseau Interordinateurs Scien
7066 490 238 Virginia Polytechnic Institut
4814 251 236 China Telecom (Group)
1 664 227 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
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
64513 PRIVATE 207.212.206.0/23 2151 California State Uni
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
132.0.0.0/10 568 DISO-UNRRA
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
158.0.0.0/13 568 DISO-UNRRA
158.255.3.0/24 702 UUNET - Commercial IP service
178.54.59.0/24 7018 AT&T
192.31.242.0/24 771 NASA Ames Research Center
192.44.0.0/19 702 UUNET - Commercial IP service
192.68.128.0/22 1239 Sprint
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
192.208.29.0/24 3908 Supernet, Inc.
192.208.30.0/23 3908 Supernet, Inc.
192.243.36.0/23 2044 AUSNet, Inc.
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:17 /9:3 /10:8 /11:13 /12:45
/13:92 /14:241 /15:441 /16:7324 /17:1557 /18:2821
/19:8018 /20:7782 /21:5608 /22:8520 /23:10243 /24:66075
/25:139 /26:173 /27:89 /28:80 /29:62 /30:109
/31:0 /32:39
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 755 1187 Supernet, Inc.
7018 503 1478 AT&T
702 494 806 UUNET - Commercial IP service
690 462 513 Merit Network
701 440 1629 UUNET Technologies, Inc.
18566 416 421 Covad Communications
7843 404 628 Adelphia Corp.
7066 389 490 Virginia Polytechnic Institut
1239 359 972 Sprint
6198 339 423 BellSouth Network Solutions,
6197 335 458 BellSouth Network Solutions,
6140 304 316 ImpSat USA, Inc.
1580 301 315 ANOSCEUR
22927 288 289 TELEFONICA DE ARGENTINA
11492 283 284 Cable One
7046 243 552 UUNET Technologies, Inc.
3215 241 315 France Telecom Transpac
20115 230 343 Charter Communications
4355 225 407 EarthLink, Inc.
7303 225 226 Telecom Argentina Stet-France
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:620 13:1 15:6 17:3 20:5 24:783
25:1 32:43 38:33 40:18 44:1 55:1
57:16 61:424 62:441 63:1861 64:1367 65:1767
66:1349 67:197 68:221 69:43 80:324 81:79
128:123 129:185 130:23 131:70 132:9 133:4
134:153 135:6 136:492 137:110 138:210 139:84
140:182 141:100 142:93 143:44 144:147 145:18
146:252 147:249 148:278 149:77 150:43 151:90
152:291 153:37 154:7 155:103 156:47 157:60
158:120 159:138 160:24 161:64 162:143 163:85
164:259 165:136 166:82 167:302 168:389 169:57
170:288 171:8 178:1 192:5406 193:2394 194:2016
195:916 196:456 198:3619 199:3063 200:2776 202:3573
203:4892 204:3003 205:2116 206:2363 207:2421 208:2622
209:2684 210:662 211:310 212:889 213:742 214:12
215:22 216:3153 217:563 218:71 219:14 220:30
End of report
