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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 02 Jan, 2003
Analysis Summary
----------------
BGP routing table entries examined: 118944
Prefixes after maximum aggregation: 76114
Unique aggregates announced to Internet: 56799
Total ASes present in the Internet Routing Table: 14314
Origin-only ASes present in the Internet Routing Table: 12429
Origin ASes announcing only one prefix: 5607
Transit ASes present in the Internet Routing Table: 1885
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: 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: 1187601369
Equivalent to 70 /8s, 201 /16s and 91 /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: 55067
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19696
Total APNIC prefixes after maximum aggregation: 11729
Prefixes being announced from the APNIC address blocks: 18233
Unique aggregates announced from the APNIC address blocks: 11166
APNIC Region origin ASes present in the Internet Routing Table: 1693
APNIC Region origin ASes announcing only one prefix: 525
APNIC Region transit ASes present in the Internet Routing Table: 288
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 102373536
Equivalent to 6 /8s, 26 /16s and 24 /24s
Percentage of available APNIC address space announced: 67.3
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: 73766
Total ARIN prefixes after maximum aggregation: 47007
Prefixes being announced from the ARIN address blocks: 51503
Unique aggregates announced from the ARIN address blocks: 15764
ARIN Region origin ASes present in the Internet Routing Table: 8017
ARIN Region origin ASes announcing only one prefix: 2711
ARIN Region transit ASes present in the Internet Routing Table: 753
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 184809456
Equivalent to 11 /8s, 3 /16s and 247 /24s
Percentage of available ARIN address space announced: 68.8
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 - 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: 20420
Total RIPE prefixes after maximum aggregation: 15193
Prefixes being announced from the RIPE address blocks: 17024
Unique aggregates announced from the RIPE address blocks: 11344
RIPE Region origin ASes present in the Internet Routing Table: 4223
RIPE Region origin ASes announcing only one prefix: 2291
RIPE Region transit ASes present in the Internet Routing Table: 770
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 121891072
Equivalent to 7 /8s, 67 /16s and 233 /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: 5061
Total LACNIC prefixes after maximum aggregation: 2185
Prefixes being announced from the LACNIC address blocks: 4430
Unique aggregates announced from the LACNIC address blocks: 2863
LACNIC Region origin ASes present in the Internet Routing Table: 323
LACNIC Region origin ASes announcing only one prefix: 80
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: 11782656
Equivalent to 0 /8s, 179 /16s and 202 /24s
Percentage of available LACNIC address space announced: 70.2
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 820 Telstra Pty Ltd
703 397 364 313 UUNET
2907 359 1785 335 SINET Japan
2764 342 341 311 connect.com.au pty ltd
17557 324 23 129 Pakistan Telecom
7474 311 281 205 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 233 771 205 DACOM Corporation
17676 231 3618 24 XTAGE CORPORATION
4766 190 1793 146 Korea Internet Exchange for "
9583 190 33 12 Satyam Infoway Ltd.,
9443 186 57 76 Primus Telecommunications
9800 165 203 42 CHINA UNICOM
4716 130 724 124 TTnet
9768 128 384 63 Korea Telecom
7657 122 26 87 The Internet Group Limited
4739 120 56 110 Commerical Internet eXchange
4621 119 11 64 UNINET-TH
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1634 9020 1204 UUNET Technologies, Inc.
7018 1424 7682 955 AT&T
3908 1183 1635 497 Supernet, Inc.
1239 949 3151 678 Sprint
1 665 8091 438 GENUITY
852 625 1140 445 Telus Advanced Communications
7843 624 404 278 Adelphia Corp.
7046 550 857 257 UUNET Technologies, Inc.
4323 533 487 168 Time Warner Communications, I
209 522 2048 335 Qwest
690 513 75 319 Merit Network
7066 488 204 256 Virginia Polytechnic Institut
6197 455 561 104 BellSouth Network Solutions,
705 423 133 188 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 392 215 175 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 344 1142 300 TeliaNet Sweden
3215 313 819 174 France Telecom Transpac
3320 253 1979 226 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
719 198 306 128 LANLINK autonomous system
786 176 1873 176 The JANET IP Service
5400 162 70 98 BT Ignite European Backbone
8708 156 42 147 Romania Data Systems S.A.
20858 148 17 4 This AS will be used to conne
3303 145 517 144 Swisscom Ltd
2856 130 1300 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 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 223 36 50 Telecom Argentina Stet-France
8151 208 331 113 UniNet S.A. de C.V.
11172 173 87 33 Servicios Alestra S.A de C.V
6503 155 191 108 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 80 2 32 Red Universitaria Nacional
6147 76 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
8065 67 6 14 Empresas Publicas de Medellin
11992 67 7 31 Integrated Systems
7984 62 11 40 Global One Colombia
4926 59 4 49 Telintar S.A.
7927 57 5 40 Global One Venezuela
15034 57 5 33 TIBA SA
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1183 686 Supernet, Inc.
7018 1424 469 AT&T
18566 414 409 Covad Communications
4323 533 365 Time Warner Communications, I
6197 455 351 BellSouth Network Solutions,
7843 624 346 Adelphia Corp.
1221 1136 316 Telstra Pty Ltd
1580 313 299 ANOSCEUR
7046 550 293 UUNET Technologies, Inc.
6347 369 290 SAVVIS Communications Corpora
4355 407 289 EarthLink, Inc.
11492 280 279 Cable One
1239 949 271 Sprint
4151 324 267 USDA
22927 289 267 TELEFONICA DE ARGENTINA
376 344 241 Reseau Interordinateurs Scien
705 423 235 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 /16:7318 /17:1545 /18:2807
/19:7994 /20:7722 /21:5587 /22:8460 /23:10182 /24:65809
/25:130 /26:167 /27:89 /28:75 /29:57 /30:107
/31:0 /32:39
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 750 1183 Supernet, Inc.
702 494 806 UUNET - Commercial IP service
7018 486 1424 AT&T
690 462 513 Merit Network
701 444 1634 UUNET Technologies, Inc.
18566 409 414 Covad Communications
7843 403 624 Adelphia Corp.
7066 385 488 Virginia Polytechnic Institut
6198 337 421 BellSouth Network Solutions,
1239 333 949 Sprint
6197 332 455 BellSouth Network Solutions,
6140 303 315 ImpSat USA, Inc.
1580 298 313 ANOSCEUR
22927 288 289 TELEFONICA DE ARGENTINA
11492 279 280 Cable One
7046 245 550 UUNET Technologies, Inc.
3215 239 313 France Telecom Transpac
20115 234 344 Charter Communications
4355 225 407 EarthLink, Inc.
7303 222 223 Telecom Argentina Stet-France
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:617 13:1 15:6 17:3 20:7 24:802
25:1 32:45 38:31 40:17 44:1 55:1
57:16 61:413 62:428 63:1859 64:1334 65:1752
66:1335 67:192 68:213 69:45 80:316 81:79
128:124 129:182 130:22 131:70 132:9 133:2
134:151 135:6 136:482 137:107 138:220 139:84
140:156 141:99 142:93 143:45 144:145 145:18
146:248 147:248 148:278 149:78 150:43 151:89
152:291 153:36 154:7 155:102 156:44 157:59
158:120 159:138 160:23 161:64 162:142 163:83
164:256 165:133 166:83 167:296 168:383 169:57
170:291 171:8 192:5426 193:2415 194:2017 195:900
196:455 198:3616 199:3049 200:2745 202:3622 203:4850
204:3003 205:2123 206:2333 207:2426 208:2595 209:2694
210:669 211:303 212:886 213:760 214:12 215:21
216:3101 217:545 218:73 219:14 220:27
End of report
