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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 01 Jan, 2003
Analysis Summary
----------------
BGP routing table entries examined: 118883
Prefixes after maximum aggregation: 76126
Unique aggregates announced to Internet: 56813
Total ASes present in the Internet Routing Table: 14319
Origin-only ASes present in the Internet Routing Table: 12431
Origin ASes announcing only one prefix: 5607
Transit ASes present in the Internet Routing Table: 1888
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: 6
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: 1187743449
Equivalent to 70 /8s, 203 /16s and 134 /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: 55055
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19707
Total APNIC prefixes after maximum aggregation: 11730
Prefixes being announced from the APNIC address blocks: 18244
Unique aggregates announced from the APNIC address blocks: 11173
APNIC Region origin ASes present in the Internet Routing Table: 1694
APNIC Region origin ASes announcing only one prefix: 526
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: 102452384
Equivalent to 6 /8s, 27 /16s and 76 /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: 73698
Total ARIN prefixes after maximum aggregation: 47005
Prefixes being announced from the ARIN address blocks: 51476
Unique aggregates announced from the ARIN address blocks: 15768
ARIN Region origin ASes present in the Internet Routing Table: 8014
ARIN Region origin ASes announcing only one prefix: 2706
ARIN Region transit ASes present in the Internet Routing Table: 756
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 184803056
Equivalent to 11 /8s, 3 /16s and 222 /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: 20418
Total RIPE prefixes after maximum aggregation: 15203
Prefixes being announced from the RIPE address blocks: 17020
Unique aggregates announced from the RIPE address blocks: 11347
RIPE Region origin ASes present in the Internet Routing Table: 4230
RIPE Region origin ASes announcing only one prefix: 2296
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: 16
Number of RIPE addresses announced to Internet: 121889024
Equivalent to 7 /8s, 67 /16s and 225 /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: 5057
Total LACNIC prefixes after maximum aggregation: 2188
Prefixes being announced from the LACNIC address blocks: 4424
Unique aggregates announced from the LACNIC address blocks: 2864
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: 11783680
Equivalent to 0 /8s, 179 /16s and 206 /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 1137 1167 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 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
9583 195 33 12 Satyam Infoway Ltd.,
4766 190 1793 146 Korea Internet Exchange for "
9443 186 57 76 Primus Telecommunications
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 1637 9020 1207 UUNET Technologies, Inc.
7018 1423 7682 954 AT&T
3908 1184 1635 498 Supernet, Inc.
1239 950 3151 679 Sprint
1 665 8091 438 GENUITY
852 626 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 454 561 104 BellSouth Network Solutions,
705 423 133 188 UUNET Technologies, Inc.
6198 421 182 196 BellSouth Network Solutions,
18566 414 96 5 Covad Communications
3561 412 2212 343 Cable & Wireless USA
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
702 806 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
719 197 306 128 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 224 36 50 Telecom Argentina Stet-France
8151 208 331 113 UniNet S.A. de C.V.
11172 172 87 34 Servicios Alestra S.A de C.V
6503 156 191 109 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 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 1184 686 Supernet, Inc.
7018 1423 469 AT&T
18566 414 409 Covad Communications
4323 533 365 Time Warner Communications, I
6197 454 350 BellSouth Network Solutions,
7843 624 346 Adelphia Corp.
1221 1137 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 950 271 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
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
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 /16:7320 /17:1546 /18:2806
/19:7993 /20:7721 /21:5586 /22:8455 /23:10184 /24:65747
/25:131 /26:168 /27:89 /28:77 /29:58 /30:107
/31:0 /32:39
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 751 1184 Supernet, Inc.
702 494 806 UUNET - Commercial IP service
7018 485 1423 AT&T
690 462 513 Merit Network
701 443 1637 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 335 950 Sprint
6197 331 454 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 223 224 Telecom Argentina Stet-France
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:616 13:1 15:6 17:3 20:7 24:802
25:1 32:45 38:32 40:17 44:1 55:1
57:16 61:413 62:428 63:1862 64:1333 65:1751
66:1332 67:192 68:213 69:45 80:317 81:79
128:124 129:182 130:22 131:70 132:9 133:2
134:152 135:6 136:486 137:108 138:220 139:84
140:156 141:99 142:93 143:45 144:145 145:18
146:248 147:248 148:278 149:78 150:43 151:89
152:291 153:36 154:7 155:103 156:44 157:58
158:120 159:138 160:23 161:64 162:142 163:83
164:256 165:133 166:83 167:296 168:382 169:57
170:291 171:8 192:5428 193:2399 194:2018 195:902
196:454 198:3574 199:3049 200:2738 202:3624 203:4853
204:3004 205:2121 206:2322 207:2427 208:2592 209:2688
210:671 211:304 212:887 213:764 214:12 215:21
216:3105 217:543 218:73 219:14 220:27
End of report
