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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 12 Jan, 2003
Analysis Summary
----------------
BGP routing table entries examined: 119529
Prefixes after maximum aggregation: 76358
Unique aggregates announced to Internet: 56635
Total ASes present in the Internet Routing Table: 14377
Origin-only ASes present in the Internet Routing Table: 12494
Origin ASes announcing only one prefix: 5642
Transit ASes present in the Internet Routing Table: 1883
Transit-only ASes present in the Internet Routing Table: 60
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: 5
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 29
Number of addresses announced to Internet: 1192324121
Equivalent to 71 /8s, 17 /16s and 108 /24s
Percentage of available address space announced: 32.2
Percentage of allocated address space announced: 58.9
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 55554
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19872
Total APNIC prefixes after maximum aggregation: 11849
Prefixes being announced from the APNIC address blocks: 18367
Unique aggregates announced from the APNIC address blocks: 11300
APNIC Region origin ASes present in the Internet Routing Table: 1705
APNIC Region origin ASes announcing only one prefix: 524
APNIC Region transit ASes present in the Internet Routing Table: 287
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 103697056
Equivalent to 6 /8s, 46 /16s and 74 /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: 74023
Total ARIN prefixes after maximum aggregation: 47084
Prefixes being announced from the ARIN address blocks: 51790
Unique aggregates announced from the ARIN address blocks: 16010
ARIN Region origin ASes present in the Internet Routing Table: 8048
ARIN Region origin ASes announcing only one prefix: 2728
ARIN Region transit ASes present in the Internet Routing Table: 752
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 185390064
Equivalent to 11 /8s, 12 /16s and 211 /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: 20504
Total RIPE prefixes after maximum aggregation: 15239
Prefixes being announced from the RIPE address blocks: 17087
Unique aggregates announced from the RIPE address blocks: 10729
RIPE Region origin ASes present in the Internet Routing Table: 4243
RIPE Region origin ASes announcing only one prefix: 2311
RIPE Region transit ASes present in the Internet Routing Table: 766
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 14
Number of RIPE addresses announced to Internet: 124366976
Equivalent to 7 /8s, 105 /16s and 176 /24s
Percentage of available RIPE address space announced: 82.4
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: 5127
Total LACNIC prefixes after maximum aggregation: 2186
Prefixes being announced from the LACNIC address blocks: 4463
Unique aggregates announced from the LACNIC address blocks: 2934
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: 69
Average LACNIC Region AS path length visible: 5.7
Max LACNIC Region AS path length visible: 17
Number of LACNIC addresses announced to Internet: 11815680
Equivalent to 0 /8s, 180 /16s and 75 /24s
Percentage of available LACNIC address space announced: 70.4
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 1131 1184 833 Telstra Pty Ltd
703 397 364 313 UUNET
2907 356 1767 333 SINET Japan
2764 339 341 308 connect.com.au pty ltd
17557 325 24 127 Pakistan Telecom
7474 315 281 205 Optus Communications Pty Ltd
4134 290 2408 90 Data Communications Bureau
4814 251 79 15 China Telecom (Group)
4755 241 134 75 Videsh Sanchar Nigam Ltd. Aut
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
7713 132 46 14 PT TELEKOMUNIKASI INDONESIA
4716 130 738 124 TTnet
9768 129 384 64 Korea Telecom
7657 124 26 87 The Internet Group Limited
9238 124 7 16 TATA ISP
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1620 9031 1193 UUNET Technologies, Inc.
7018 1464 7280 981 AT&T
3908 1186 1618 499 Supernet, Inc.
1239 970 3145 678 Sprint
1 659 8060 432 GENUITY
7843 630 408 268 Adelphia Corp.
852 628 1140 445 Telus Advanced Communications
7046 553 841 262 UUNET Technologies, Inc.
4323 527 488 168 Time Warner Communications, I
209 519 2102 328 Qwest
690 513 75 319 Merit Network
7066 491 204 252 Virginia Polytechnic Institut
6197 458 561 104 BellSouth Network Solutions,
705 428 133 187 UUNET Technologies, Inc.
18566 422 96 5 Covad Communications
6198 420 182 196 BellSouth Network Solutions,
4355 406 313 118 EarthLink, Inc.
3549 402 709 296 Global Crossing
3561 392 2210 321 Cable & Wireless USA
15290 392 215 175 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 807 2290 670 UUNET - Commercial IP service
3301 342 1141 298 TeliaNet Sweden
3215 315 819 175 France Telecom Transpac
3320 257 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
719 201 306 130 LANLINK autonomous system
786 175 1873 175 The JANET IP Service
5400 160 68 97 BT Ignite European Backbone
8708 157 42 145 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 207 332 112 UniNet S.A. de C.V.
11172 172 83 33 Servicios Alestra S.A de C.V
6503 155 191 107 AVANTEL, S.A.
16814 140 9 14 NSS, S.A.
13999 127 36 8 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
4270 68 18 10 Red de Interconexion Universi
11992 68 7 31 Integrated Systems
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 1186 687 Supernet, Inc.
7018 1464 483 AT&T
18566 422 417 Covad Communications
7843 630 362 Adelphia Corp.
4323 527 359 Time Warner Communications, I
6197 458 354 BellSouth Network Solutions,
1580 315 302 ANOSCEUR
1221 1131 298 Telstra Pty Ltd
11492 294 293 Cable One
1239 970 292 Sprint
7046 553 291 UUNET Technologies, Inc.
6347 370 291 SAVVIS Communications Corpora
4355 406 288 EarthLink, Inc.
4151 329 271 USDA
22927 289 267 TELEFONICA DE ARGENTINA
705 428 241 UUNET Technologies, Inc.
376 346 241 Reseau Interordinateurs Scien
7066 491 239 Virginia Polytechnic Institut
4814 251 236 China Telecom (Group)
1 659 227 GENUITY
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64516 PRIVATE 137.164.227.0/24 2150 California State Uni
64516 PRIVATE 137.164.228.0/22 2150 California State Uni
1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p
65535 PRIVATE 202.57.188.0/24 7654 Siam Global Access C
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
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
192.72.0.0/18 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 /8:18 /9:3 /10:8 /11:12 /12:45
/13:91 /14:241 /15:441 /16:7338 /17:1556 /18:2820
/19:8018 /20:7788 /21:5610 /22:8521 /23:10247 /24:66079
/25:139 /26:174 /27:90 /28:80 /29:63 /30:107
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 757 1186 Supernet, Inc.
7018 507 1464 AT&T
702 495 807 UUNET - Commercial IP service
690 462 513 Merit Network
701 435 1620 UUNET Technologies, Inc.
18566 417 422 Covad Communications
7843 405 630 Adelphia Corp.
7066 390 491 Virginia Polytechnic Institut
1239 359 970 Sprint
6198 336 420 BellSouth Network Solutions,
6197 335 458 BellSouth Network Solutions,
6140 304 316 ImpSat USA, Inc.
1580 301 315 ANOSCEUR
11492 293 294 Cable One
22927 288 289 TELEFONICA DE ARGENTINA
7046 243 553 UUNET Technologies, Inc.
3215 241 315 France Telecom Transpac
20115 231 348 Charter Communications
7303 225 226 Telecom Argentina Stet-France
4355 224 406 EarthLink, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:627 13:1 15:6 17:3 20:7 24:788
25:1 32:43 38:36 40:18 44:1 55:1
57:15 61:422 62:437 63:1848 64:1367 65:1783
66:1361 67:199 68:222 69:43 80:322 81:79
128:123 129:184 130:23 131:70 132:9 133:4
134:153 135:6 136:489 137:110 138:209 139:84
140:182 141:102 142:95 143:44 144:149 145:18
146:253 147:250 148:278 149:77 150:42 151:90
152:291 153:37 154:7 155:103 156:47 157:60
158:120 159:139 160:24 161:64 162:146 163:85
164:258 165:136 166:82 167:302 168:390 169:57
170:289 171:8 178:1 192:5394 193:2388 194:2010
195:919 196:456 198:3574 199:3072 200:2775 202:3592
203:4933 204:3007 205:2111 206:2358 207:2401 208:2628
209:2677 210:651 211:318 212:893 213:737 214:12
215:22 216:3158 217:560 218:68 219:14 220:31
End of report
