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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 30 Dec, 2002
Analysis Summary
----------------
BGP routing table entries examined: 118519
Prefixes after maximum aggregation: 75920
Unique aggregates announced to Internet: 56775
Total ASes present in the Internet Routing Table: 14286
Origin-only ASes present in the Internet Routing Table: 12402
Origin ASes announcing only one prefix: 5605
Transit ASes present in the Internet Routing Table: 1884
Transit-only ASes present in the Internet Routing Table: 62
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 18
Illegal AS announcements present in the Routing Table: 9
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 35
Number of addresses announced to Internet: 1186956121
Equivalent to 70 /8s, 191 /16s and 131 /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: 54864
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19518
Total APNIC prefixes after maximum aggregation: 11604
Prefixes being announced from the APNIC address blocks: 18065
Unique aggregates announced from the APNIC address blocks: 11185
APNIC Region origin ASes present in the Internet Routing Table: 1671
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: 102386848
Equivalent to 6 /8s, 26 /16s and 76 /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: 73531
Total ARIN prefixes after maximum aggregation: 46942
Prefixes being announced from the ARIN address blocks: 51362
Unique aggregates announced from the ARIN address blocks: 15752
ARIN Region origin ASes present in the Internet Routing Table: 8011
ARIN Region origin ASes announcing only one prefix: 2707
ARIN Region transit ASes present in the Internet Routing Table: 750
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 184535536
Equivalent to 10 /8s, 255 /16s and 201 /24s
Percentage of available ARIN address space announced: 68.7
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: 20411
Total RIPE prefixes after maximum aggregation: 15196
Prefixes being announced from the RIPE address blocks: 17021
Unique aggregates announced from the RIPE address blocks: 11322
RIPE Region origin ASes present in the Internet Routing Table: 4223
RIPE Region origin ASes announcing only one prefix: 2296
RIPE Region transit ASes present in the Internet Routing Table: 769
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 121741696
Equivalent to 7 /8s, 65 /16s and 161 /24s
Percentage of available RIPE address space announced: 80.6
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: 5053
Total LACNIC prefixes after maximum aggregation: 2178
Prefixes being announced from the LACNIC address blocks: 4418
Unique aggregates announced from the LACNIC address blocks: 2856
LACNIC Region origin ASes present in the Internet Routing Table: 322
LACNIC Region origin ASes announcing only one prefix: 81
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: 11743744
Equivalent to 0 /8s, 179 /16s and 50 /24s
Percentage of available LACNIC address space announced: 70.0
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 342 341 311 connect.com.au pty ltd
17557 324 23 129 Pakistan Telecom
7474 311 281 205 Optus Communications Pty Ltd
4134 289 2408 91 Data Communications Bureau
4755 265 134 75 Videsh Sanchar Nigam Ltd. Aut
4814 249 79 15 China Telecom (Group)
17676 231 3618 24 XTAGE CORPORATION
4766 198 1800 152 Korea Internet Exchange for "
9583 192 33 12 Satyam Infoway Ltd.,
9443 186 57 76 Primus Telecommunications
3786 179 762 155 DACOM Corporation
9800 165 203 42 CHINA UNICOM
4716 130 724 124 TTnet
9768 128 384 63 Korea Telecom
7657 124 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 1642 9040 1211 UUNET Technologies, Inc.
7018 1424 7680 955 AT&T
3908 1187 1635 499 Supernet, Inc.
1239 949 3151 678 Sprint
1 666 8107 439 GENUITY
7843 627 404 278 Adelphia Corp.
852 624 1140 443 Telus Advanced Communications
7046 575 861 278 UUNET Technologies, Inc.
4323 532 487 168 Time Warner Communications, I
209 522 2048 336 Qwest
690 513 75 319 Merit Network
7066 489 204 257 Virginia Polytechnic Institut
6197 452 560 103 BellSouth Network Solutions,
705 423 133 188 UUNET Technologies, Inc.
6198 421 182 196 BellSouth Network Solutions,
3561 414 2228 346 Cable & Wireless USA
18566 414 96 5 Covad Communications
4355 407 313 118 EarthLink, Inc.
3549 402 709 295 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
702 807 2291 671 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
719 199 306 129 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 110 738 62 TELECOM ITALIA
5511 108 193 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 224 36 50 Telecom Argentina Stet-France
8151 208 331 113 UniNet S.A. de C.V.
11172 171 87 34 Servicios Alestra S.A de C.V
6503 157 191 110 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 76 58 24 Telefonica Del Peru
1916 74 306 44 Fundacao de Amparo a Pesquisa
15311 73 27 37 Telefonica Empresas
6535 72 5 16 Chilesat Servicios Empresari
4270 68 18 10 Red de Interconexion Universi
11992 68 7 31 Integrated Systems
8065 67 6 14 Empresas Publicas de Medellin
7984 60 11 38 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 1187 688 Supernet, Inc.
7018 1424 469 AT&T
18566 414 409 Covad Communications
4323 532 364 Time Warner Communications, I
7843 627 349 Adelphia Corp.
6197 452 349 BellSouth Network Solutions,
1221 1136 315 Telstra Pty Ltd
1580 315 301 ANOSCEUR
7046 575 297 UUNET Technologies, Inc.
4355 407 289 EarthLink, Inc.
6347 362 283 SAVVIS Communications Corpora
11492 280 279 Cable One
1239 949 271 Sprint
4151 325 267 USDA
22927 289 267 TELEFONICA DE ARGENTINA
376 344 241 Reseau Interordinateurs Scien
705 423 235 UUNET Technologies, Inc.
4814 249 234 China Telecom (Group)
7066 489 232 Virginia Polytechnic Institut
1 666 227 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
1877 UNALLOCATED 192.108.201.0/24 1880 Stupi, house man's p
64586 PRIVATE 202.165.140.0/24 4845 Chung Hsiao East Roa
64586 PRIVATE 202.165.141.0/24 4845 Chung Hsiao East Roa
64586 PRIVATE 202.165.143.0/24 4845 Chung Hsiao East Roa
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
178.54.59.0/24 7018 AT&T
188.1.48.0/24 12732 Logivision GmbH
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 /15:439 /16:7309 /17:1543 /18:2808
/19:7983 /20:7706 /21:5560 /22:8389 /23:10121 /24:65564
/25:135 /26:173 /27:90 /28:78 /29:59 /30:107
/31:0 /32:39
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 754 1187 Supernet, Inc.
702 496 807 UUNET - Commercial IP service
7018 485 1424 AT&T
690 462 513 Merit Network
701 444 1642 UUNET Technologies, Inc.
18566 409 414 Covad Communications
7843 406 627 Adelphia Corp.
7066 386 489 Virginia Polytechnic Institut
6198 337 421 BellSouth Network Solutions,
1239 334 949 Sprint
6197 331 452 BellSouth Network Solutions,
6140 303 315 ImpSat USA, Inc.
1580 300 315 ANOSCEUR
22927 288 289 TELEFONICA DE ARGENTINA
11492 279 280 Cable One
7046 268 575 UUNET Technologies, Inc.
3215 239 313 France Telecom Transpac
4355 225 407 EarthLink, Inc.
7303 223 224 Telecom Argentina Stet-France
209 213 522 Qwest
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:617 13:1 15:6 17:3 20:7 24:805
25:1 32:45 38:32 40:17 44:1 55:1
57:16 61:398 62:429 63:1866 64:1331 65:1750
66:1329 67:193 68:212 69:46 80:319 81:87
128:124 129:162 130:20 131:72 132:9 133:2
134:151 135:6 136:489 137:109 138:213 139:83
140:153 141:99 142:93 143:44 144:146 145:18
146:248 147:249 148:278 149:78 150:43 151:89
152:291 153:36 154:7 155:102 156:44 157:58
158:120 159:138 160:23 161:64 162:143 163:83
164:256 165:133 166:83 167:296 168:382 169:58
170:291 171:8 178:1 188:1 192:5417 193:2402
194:2017 195:897 196:456 198:3571 199:3053 200:2736
202:3608 203:4845 204:2982 205:2117 206:2293 207:2421
208:2581 209:2682 210:653 211:302 212:881 213:766
214:12 215:21 216:3100 217:541 218:70 219:14
220:18
End of report
