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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sat 04 Jan, 2003
Analysis Summary
----------------
BGP routing table entries examined: 119071
Prefixes after maximum aggregation: 76197
Unique aggregates announced to Internet: 56891
Total ASes present in the Internet Routing Table: 14335
Origin-only ASes present in the Internet Routing Table: 12449
Origin ASes announcing only one prefix: 5619
Transit ASes present in the Internet Routing Table: 1886
Transit-only ASes present in the Internet Routing Table: 62
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 18
Illegal AS announcements present in the Routing Table: 4
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 33
Number of addresses announced to Internet: 1187784729
Equivalent to 70 /8s, 204 /16s and 40 /24s
Percentage of available address space announced: 32.0
Percentage of allocated address space announced: 58.7
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 55202
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19719
Total APNIC prefixes after maximum aggregation: 11748
Prefixes being announced from the APNIC address blocks: 18250
Unique aggregates announced from the APNIC address blocks: 11190
APNIC Region origin ASes present in the Internet Routing Table: 1697
APNIC Region origin ASes announcing only one prefix: 523
APNIC Region transit ASes present in the Internet Routing Table: 286
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 102528160
Equivalent to 6 /8s, 28 /16s and 116 /24s
Percentage of available APNIC address space announced: 67.4
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: 73789
Total ARIN prefixes after maximum aggregation: 47024
Prefixes being announced from the ARIN address blocks: 51539
Unique aggregates announced from the ARIN address blocks: 15791
ARIN Region origin ASes present in the Internet Routing Table: 8016
ARIN Region origin ASes announcing only one prefix: 2716
ARIN Region transit ASes present in the Internet Routing Table: 754
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 184894448
Equivalent to 11 /8s, 5 /16s and 67 /24s
Percentage of available ARIN address space announced: 68.9
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 - 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: 20476
Total RIPE prefixes after maximum aggregation: 15238
Prefixes being announced from the RIPE address blocks: 17071
Unique aggregates announced from the RIPE address blocks: 11368
RIPE Region origin ASes present in the Internet Routing Table: 4238
RIPE Region origin ASes announcing only one prefix: 2301
RIPE Region transit ASes present in the Internet Routing Table: 771
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 121834624
Equivalent to 7 /8s, 67 /16s and 12 /24s
Percentage of available RIPE address space announced: 80.7
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: 5086
Total LACNIC prefixes after maximum aggregation: 2187
Prefixes being announced from the LACNIC address blocks: 4442
Unique aggregates announced from the LACNIC address blocks: 2881
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: 67
Average LACNIC Region AS path length visible: 5.7
Max LACNIC Region AS path length visible: 10
Number of LACNIC addresses announced to Internet: 11788544
Equivalent to 0 /8s, 179 /16s and 225 /24s
Percentage of available LACNIC address space announced: 70.3
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 1136 1166 821 Telstra Pty Ltd
703 397 364 313 UUNET
2907 359 1785 335 SINET Japan
2764 341 341 310 connect.com.au pty ltd
17557 324 23 129 Pakistan Telecom
7474 312 281 205 Optus Communications Pty Ltd
4134 290 2408 91 Data Communications Bureau
4755 259 134 75 Videsh Sanchar Nigam Ltd. Aut
4814 246 79 15 China Telecom (Group)
3786 234 771 205 DACOM Corporation
17676 231 3618 24 XTAGE CORPORATION
9583 191 33 12 Satyam Infoway Ltd.,
4766 188 1787 144 Korea Internet Exchange for "
9443 186 57 76 Primus Telecommunications
9800 165 203 42 CHINA UNICOM
4716 130 724 124 TTnet
9768 129 384 64 Korea Telecom
7657 124 26 87 The Internet Group Limited
4739 121 56 111 Commerical Internet eXchange
9498 117 9 24 BHARTI BT INTERNET LTD.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1625 8999 1197 UUNET Technologies, Inc.
7018 1427 7682 954 AT&T
3908 1187 1635 497 Supernet, Inc.
1239 978 3149 686 Sprint
1 665 8091 438 GENUITY
852 625 1140 444 Telus Advanced Communications
7843 624 404 279 Adelphia Corp.
7046 552 857 259 UUNET Technologies, Inc.
4323 526 487 167 Time Warner Communications, I
209 524 2048 334 Qwest
690 513 75 319 Merit Network
7066 488 204 256 Virginia Polytechnic Institut
6197 455 561 104 BellSouth Network Solutions,
705 426 133 188 UUNET Technologies, Inc.
6198 421 182 196 BellSouth Network Solutions,
18566 414 96 5 Covad Communications
3561 409 2212 340 Cable & Wireless USA
4355 407 313 118 EarthLink, Inc.
3549 402 709 295 Global Crossing
15290 394 215 175 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 806 2290 670 UUNET - Commercial IP service
3301 340 1141 296 TeliaNet Sweden
3215 314 819 175 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
719 200 306 129 LANLINK autonomous system
786 176 1873 176 The JANET IP Service
5400 162 70 98 BT Ignite European Backbone
8708 155 42 147 Romania Data Systems S.A.
20858 148 17 4 This AS will be used to conne
3303 143 517 142 Swisscom Ltd
2856 129 1300 117 BTnet UK Regional network
8220 124 174 114 COLT Internet - International
12302 124 18 31 MobiFon S.A.
3246 118 378 115 Song Networks
3269 111 754 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 315 98 104 ImpSat USA, Inc.
7303 225 36 51 Telecom Argentina Stet-France
8151 207 331 112 UniNet S.A. de C.V.
11172 173 87 33 Servicios Alestra S.A de C.V
6503 157 191 109 AVANTEL, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
16814 108 7 13 NSS, S.A.
10620 98 6 32 TVCABLE BOGOTA
11340 82 2 33 Red Universitaria Nacional
6147 77 58 24 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
4926 59 4 49 Telintar S.A.
15034 58 5 33 TIBA SA
7927 57 5 40 Global One Venezuela
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1187 690 Supernet, Inc.
7018 1427 473 AT&T
18566 414 409 Covad Communications
4323 526 359 Time Warner Communications, I
6197 455 351 BellSouth Network Solutions,
7843 624 345 Adelphia Corp.
1221 1136 315 Telstra Pty Ltd
1580 316 302 ANOSCEUR
7046 552 293 UUNET Technologies, Inc.
1239 978 292 Sprint
6347 369 290 SAVVIS Communications Corpora
4355 407 289 EarthLink, Inc.
11492 280 279 Cable One
4151 327 269 USDA
22927 289 267 TELEFONICA DE ARGENTINA
376 344 241 Reseau Interordinateurs Scien
705 426 238 UUNET Technologies, Inc.
7066 488 232 Virginia Polytechnic Institut
4814 246 231 China Telecom (Group)
1 665 227 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
1877 UNALLOCATED 192.108.201.0/24 1880 Stupi, house man's p
65000 PRIVATE 203.21.203.0/24 1221 Telstra Pty Ltd
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
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 GENUITY
158.0.0.0/13 568 DISO-UNRRA
158.255.3.0/24 702 UUNET - Commercial IP service
164.236.0.0/16 568 DISO-UNRRA
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
192.156.0.0/19 568 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 /11:12 /12:46
/13:92 /14:238 /15:440 /16:7319 /17:1551 /18:2814
/19:7996 /20:7765 /21:5593 /22:8476 /23:10188 /24:65828
/25:138 /26:174 /27:89 /28:77 /29:61 /30:107
/31:0 /32:39
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 755 1187 Supernet, Inc.
702 494 806 UUNET - Commercial IP service
7018 489 1427 AT&T
690 462 513 Merit Network
701 439 1625 UUNET Technologies, Inc.
18566 409 414 Covad Communications
7843 402 624 Adelphia Corp.
7066 385 488 Virginia Polytechnic Institut
1239 363 978 Sprint
6198 337 421 BellSouth Network Solutions,
6197 332 455 BellSouth Network Solutions,
6140 303 315 ImpSat USA, Inc.
1580 301 316 ANOSCEUR
22927 288 289 TELEFONICA DE ARGENTINA
11492 279 280 Cable One
7046 246 552 UUNET Technologies, Inc.
3215 240 314 France Telecom Transpac
20115 234 346 Charter Communications
4355 225 407 EarthLink, Inc.
7303 224 225 Telecom Argentina Stet-France
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:614 13:1 15:6 17:3 20:7 24:802
25:1 32:45 38:30 40:17 44:1 55:1
57:16 61:414 62:439 63:1860 64:1328 65:1760
66:1340 67:194 68:213 69:44 80:315 81:81
128:124 129:184 130:23 131:70 132:9 133:2
134:154 135:6 136:486 137:108 138:213 139:84
140:157 141:100 142:93 143:44 144:148 145:18
146:252 147:248 148:276 149:78 150:43 151:89
152:291 153:36 154:7 155:103 156:44 157:59
158:120 159:138 160:22 161:64 162:142 163:84
164:259 165:133 166:83 167:297 168:385 169:57
170:292 171:8 192:5421 193:2412 194:2015 195:901
196:455 198:3614 199:3056 200:2753 202:3591 203:4852
204:3005 205:2123 206:2336 207:2401 208:2605 209:2686
210:660 211:304 212:887 213:760 214:12 215:21
216:3126 217:553 218:71 219:14 220:29
End of report
