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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 02 Dec, 2002
Analysis Summary
----------------
BGP routing table entries examined: 118916
Prefixes after maximum aggregation: 75460
Unique aggregates announced to Internet: 56516
Total ASes present in the Internet Routing Table: 14145
Origin-only ASes present in the Internet Routing Table: 12255
Origin ASes announcing only one prefix: 5530
Transit ASes present in the Internet Routing Table: 1890
Transit-only ASes present in the Internet Routing Table: 63
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 17
Illegal AS announcements present in the Routing Table: 2
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 36
Number of addresses announced to Internet: 1184807021
Equivalent to 70 /8s, 158 /16s and 184 /24s
Percentage of available address space announced: 32.0
Percentage of allocated address space announced: 58.6
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 54149
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19127
Total APNIC prefixes after maximum aggregation: 11351
Prefixes being announced from the APNIC address blocks: 17662
Unique aggregates announced from the APNIC address blocks: 11085
APNIC Region origin ASes present in the Internet Routing Table: 1646
APNIC Region origin ASes announcing only one prefix: 521
APNIC Region transit ASes present in the Internet Routing Table: 293
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 13
Number of APNIC addresses announced to Internet: 100754608
Equivalent to 6 /8s, 1 /16s and 100 /24s
Percentage of available APNIC address space announced: 66.3
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: 74763
Total ARIN prefixes after maximum aggregation: 46898
Prefixes being announced from the ARIN address blocks: 52201
Unique aggregates announced from the ARIN address blocks: 15696
ARIN Region origin ASes present in the Internet Routing Table: 7942
ARIN Region origin ASes announcing only one prefix: 2667
ARIN Region transit ASes present in the Internet Routing Table: 748
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 183752928
Equivalent to 10 /8s, 243 /16s and 216 /24s
Percentage of available ARIN address space announced: 68.5
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: 20101
Total RIPE prefixes after maximum aggregation: 15113
Prefixes being announced from the RIPE address blocks: 16739
Unique aggregates announced from the RIPE address blocks: 11218
RIPE Region origin ASes present in the Internet Routing Table: 4173
RIPE Region origin ASes announcing only one prefix: 2262
RIPE Region transit ASes present in the Internet Routing Table: 769
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 120308928
Equivalent to 7 /8s, 43 /16s and 196 /24s
Percentage of available RIPE address space announced: 79.7
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
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: 4925
Total LACNIC prefixes after maximum aggregation: 2098
Prefixes being announced from the LACNIC address blocks: 4299
Unique aggregates announced from the LACNIC address blocks: 2768
LACNIC Region origin ASes present in the Internet Routing Table: 321
LACNIC Region origin ASes announcing only one prefix: 80
LACNIC Region transit ASes present in the Internet Routing Table: 70
Average LACNIC Region AS path length visible: 5.8
Max LACNIC Region AS path length visible: 13
Number of LACNIC addresses announced to Internet: 11755776
Equivalent to 0 /8s, 179 /16s and 97 /24s
Percentage of available LACNIC address space announced: 70.1
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 1171 1184 848 Telstra Pty Ltd
703 397 364 311 UUNET
2907 353 1751 332 SINET Japan
2764 342 341 310 connect.com.au pty ltd
17557 314 23 123 Pakistan Telecom
7474 304 280 203 Optus Communications Pty Ltd
4134 299 2361 102 Data Communications Bureau
4755 265 135 67 Videsh Sanchar Nigam Ltd. Aut
4814 248 79 15 China Telecom (Group)
17676 230 3570 27 XTAGE CORPORATION
4766 226 1807 150 Korea Internet Exchange for "
9443 184 57 73 Primus Telecommunications
9583 184 33 12 Satyam Infoway Ltd.,
9768 135 386 64 Korea Telecom
4716 130 724 124 TTnet
9800 129 190 30 CHINA UNICOM
7657 126 25 91 The Internet Group Limited
4739 120 56 110 Commerical Internet eXchange
4515 112 102 47 Star Internet Services Ltd.
4713 112 1044 101 NTT Communications Corporatio
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3908 2387 1652 506 Supernet, Inc.
701 1743 9040 1245 UUNET Technologies, Inc.
7018 1400 7147 977 AT&T
1239 915 3188 656 Sprint
852 666 1147 465 Telus Advanced Communications
1 665 8090 437 GENUITY
7843 665 396 274 Adelphia Corp.
7046 587 862 285 UUNET Technologies, Inc.
4323 526 455 167 Time Warner Communications, I
209 522 2048 337 Qwest
690 506 74 319 Merit Network
7066 491 204 258 Virginia Polytechnic Institut
6197 444 236 202 BellSouth Network Solutions,
705 440 134 200 UUNET Technologies, Inc.
6198 414 177 198 BellSouth Network Solutions,
3561 411 2234 352 Cable & Wireless USA
3549 405 742 296 Global Crossing
4355 403 313 118 EarthLink, Inc.
15290 389 214 174 AT&T Canada IES
18566 378 96 5 Covad Communications
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 818 2331 682 UUNET - Commercial IP service
3301 380 1163 335 TeliaNet Sweden
3215 308 805 171 France Telecom Transpac
3320 247 1964 224 Deutsche Telekom AG
680 237 2150 234 DFN-IP service G-WiN
1257 213 416 203 SWIPnet Swedish IP Network
5515 210 783 175 Sonera Solution Autonomous Sy
719 190 306 129 LANLINK autonomous system
786 176 1873 176 The JANET IP Service
5400 169 74 104 BT Ignite European Backbone
8708 152 41 145 Romania Data Systems S.A.
3303 145 517 144 Swisscom Ltd
2856 143 1302 131 BTnet UK Regional network
20858 141 17 4 This AS will be used to conne
12302 123 18 30 MobiFon S.A.
3246 119 379 116 Song Networks
8220 119 174 111 COLT Internet - International
3269 111 752 63 TELECOM ITALIA
2874 102 85 39 Global One Services AB
3233 102 6 54 RNC - Romanian Natioanal R&D
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 269 114 58 ImpSat USA, Inc.
8151 207 332 112 UniNet S.A. de C.V.
7303 182 28 46 Telecom Argentina Stet-France
11172 167 88 34 Servicios Alestra S.A de C.V
6503 156 191 108 AVANTEL, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
16814 106 7 12 NSS, S.A.
10620 98 6 32 TVCABLE BOGOTA
6147 79 57 23 Telefonica Del Peru
11340 78 2 29 Red Universitaria Nacional
1916 73 409 40 Fundacao de Amparo a Pesquisa
15311 73 27 37 Telefonica Empresas
6535 71 4 19 Chilesat Servicios Empresari
4270 68 18 10 Red de Interconexion Universi
11992 68 7 28 Integrated Systems
8065 67 6 14 Empresas Publicas de Medellin
7984 65 12 41 Global One Colombia
4926 63 4 51 Telintar S.A.
15034 61 6 33 TIBA SA
7927 56 5 39 Global One Venezuela
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
701 1743 498 UUNET Technologies, Inc.
7018 1400 423 AT&T
7843 665 391 Adelphia Corp.
18566 378 373 Covad Communications
4323 526 359 Time Warner Communications, I
1221 1171 323 Telstra Pty Ltd
7046 587 302 UUNET Technologies, Inc.
1580 313 300 ANOSCEUR
4151 353 295 USDA
6347 364 289 SAVVIS Communications Corpora
4355 403 285 EarthLink, Inc.
11492 272 260 Cable One
1239 915 259 Sprint
22927 275 255 TELEFONICA DE ARGENTINA
6197 444 242 BellSouth Network Solutions,
705 440 240 UUNET Technologies, Inc.
376 343 239 Reseau Interordinateurs Scien
7066 491 233 Virginia Polytechnic Institut
4814 248 233 China Telecom (Group)
1 665 228 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
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
156.108.0.0/16 14041 Colorado State University / A
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
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
192.72.0.0/18 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
192.91.198.0/24 2568 CTS Network Services
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
192.136.136.0/24 7046 UUNET Technologies, Inc.
192.136.136.0/22 568 DISO-UNRRA
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 /11:11 /12:46
/13:91 /14:237 /15:439 /16:7311 /17:1523 /18:2769
/19:7977 /20:7654 /21:5463 /22:8332 /23:10040 /24:66110
/25:145 /26:177 /27:89 /28:96 /29:70 /30:241
/31:19 /32:48
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 969 2387 Supernet, Inc.
701 509 1743 UUNET Technologies, Inc.
702 500 818 UUNET - Commercial IP service
7018 463 1400 AT&T
7843 457 665 Adelphia Corp.
690 455 506 Merit Network
7066 388 491 Virginia Polytechnic Institut
18566 371 378 Covad Communications
6197 334 444 BellSouth Network Solutions,
6198 332 414 BellSouth Network Solutions,
1239 306 915 Sprint
1580 299 313 ANOSCEUR
7046 278 587 UUNET Technologies, Inc.
22927 274 275 TELEFONICA DE ARGENTINA
11492 270 272 Cable One
6140 257 269 ImpSat USA, Inc.
3215 235 308 France Telecom Transpac
3301 227 380 TeliaNet Sweden
4355 223 403 EarthLink, Inc.
11537 220 226 University Corporation for Ad
Number of /24s announced per /8 block (Global)
----------------------------------------------
8:1 12:609 13:10 15:4 17:3 20:5
24:854 25:1 32:46 38:28 40:15 44:1
55:1 57:15 61:396 62:406 63:1930 64:1297
65:1680 66:1226 67:190 68:182 69:23 80:315
81:73 128:119 129:170 130:19 131:67 132:9
133:2 134:157 135:7 136:494 137:107 138:216
139:80 140:155 141:92 142:90 143:44 144:147
145:18 146:250 147:241 148:269 149:76 150:43
151:86 152:289 153:36 154:7 155:100 156:106
157:55 158:111 159:156 160:21 161:71 162:139
163:87 164:256 165:127 166:94 167:295 168:376
169:56 170:272 171:6 192:5409 193:2370 194:2007
195:842 196:459 198:3694 199:3126 200:2640 202:3466
203:4831 204:3565 205:2427 206:2373 207:2516 208:2584
209:2651 210:621 211:278 212:879 213:766 214:12
215:21 216:3038 217:527 218:64 219:14 220:1
End of report
