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[bgp-stats] Routing Table Report - Japan view
* BGP Statistics focusing on the Asia Pacific Region *
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Routing Table Report 04:00 +10GMT Tue 18 Jun, 2002
Analysis Summary
----------------
BGP routing table entries examined: 116857
Prefixes after maximum aggregation: 75545
Unique aggregates announced to Internet: 52620
Total ASes present in the Internet Routing Table: 13247
Origin-only ASes present in the Internet Routing Table: 11483
Origin ASes announcing only one prefix: 5049
Transit ASes present in the Internet Routing Table: 1764
Transit-only ASes present in the Internet Routing Table: 51
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: 2
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: 1196950492
Equivalent to 71 /8s, 88 /16s and 3 /24s
Percentage of available address space announced: 32.3
Percentage of allocated address space announced: 60.2
Percentage of available address space allocated: 53.7
Total number of prefixes smaller than registry allocations: 49071
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18443
Total APNIC prefixes after maximum aggregation: 11019
Prefixes being announced from the APNIC address blocks: 16947
Unique aggregates announced from the APNIC address blocks: 9869
APNIC Region origin ASes present in the Internet Routing Table: 1540
APNIC Region origin ASes announcing only one prefix: 501
APNIC Region transit ASes present in the Internet Routing Table: 276
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 90240352
Equivalent to 5 /8s, 96 /16s and 245 /24s
Percentage of available APNIC address space announced: 66.7
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 220/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 79226
Total ARIN prefixes after maximum aggregation: 50006
Prefixes being announced from the ARIN address blocks: 54637
Unique aggregates announced from the ARIN address blocks: 16652
ARIN Region origin ASes present in the Internet Routing Table: 7811
ARIN Region origin ASes announcing only one prefix: 2491
ARIN Region transit ASes present in the Internet Routing Table: 766
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 193642836
Equivalent to 11 /8s, 138 /16s and 193 /24s
Percentage of available ARIN address space announced: 72.1
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 - 26623
ARIN Address Blocks 24/8, 63/8, 64/6, 68/8, 199/8, 200/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 19188
Total RIPE prefixes after maximum aggregation: 14520
Prefixes being announced from the RIPE address blocks: 15886
Unique aggregates announced from the RIPE address blocks: 10543
RIPE Region origin ASes present in the Internet Routing Table: 3845
RIPE Region origin ASes announcing only one prefix: 2057
RIPE Region transit ASes present in the Internet Routing Table: 705
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 110506528
Equivalent to 6 /8s, 150 /16s and 50 /24s
Percentage of available RIPE address space announced: 73.2
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, 193/8, 194/7, 212/7 and 217/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1262 1222 908 Telstra Pty Ltd
4538 418 1194 16 China Education and Research
703 414 350 331 UUNET Technologies, Inc.
2907 385 1876 358 SINET Japan
2764 373 359 341 connect.com.au pty ltd
7474 309 291 207 Optus Communications Pty Ltd
17557 309 21 118 Pakistan Telecom
4755 293 115 80 Videsh Sanchar Nigam Ltd. Aut
4134 290 2132 102 Data Communications Bureau
9443 250 45 65 Primus Telecommunications
4766 216 1504 154 Korea Internet Exchange for "
4814 197 79 14 China Telecom (Group) - Beiji
4713 183 1009 106 NTT Communications Corporatio
9583 174 32 5 Satyam Infoway Ltd.,
17676 149 2306 22 XTAGE CORPORATION
9768 146 386 75 Korea Telecom
7657 140 22 88 The Internet Group Limited
9800 115 187 23 CHINA UNICOM
4780 112 186 39 Digital United Inc.
4621 110 11 59 UNINET-TH
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1022 2618 846 UUNET Technologies, Inc.
3301 397 908 348 TeliaNet Sweden
3352 281 537 27 Ibernet, Internet Access Netw
3215 264 598 162 France Telecom / &Equant
680 233 2149 230 DFN-IP service G-WiN
3320 231 1946 184 Deutsche Telekom AG
5515 205 783 171 Sonera Finland Autonomous Sys
5400 204 83 94 Concert European Core Network
1257 203 430 200 SWIPnet Swedish IP Network
719 191 306 129 LANLINK autonomous system
786 178 1873 177 The JANET IP Service
8708 140 23 137 Romania Data Systems S.A.
3303 132 547 131 Swisscom Ltd
2856 125 789 115 BTnet UK Regional network
12302 123 10 30 MobiFon S.A.
3269 113 692 70 TELECOM ITALIA
8297 112 57 65 Teleglobe Autonomous System i
3246 107 284 102 Song Networks / Clinet
3233 101 6 58 RNC - Romanian Natioanal R&D
2874 98 85 38 Global One Services AB
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2149 3068 361 2486 Performance Systems, Inc.
701 2006 8989 1403 UUNET Technologies, Inc.
7018 1282 7452 932 AT&T
3908 908 1642 495 Supernet, Inc.
1239 809 3406 646 Sprint
705 808 209 276 UUNET Technologies, Inc.
852 721 1191 447 Telus Advanced Communications
1 700 8148 449 GENUITY
4323 629 436 258 Time Warner Communications, I
7843 615 375 60 Adelphia Corp.
209 607 1972 338 Qwest
7046 598 851 393 UUNET Technologies, Inc.
690 588 81 376 Merit Network
7132 576 659 134 Southwestern Bell Internet Se
3549 481 857 322 Global Crossing
7066 475 202 249 Virginia Polytechnic Institut
174 456 4607 29 PSINet Inc.
2914 395 2109 387 Verio, Inc.
15290 384 299 198 AT&T Canada IES
6197 346 246 170 BellSouth Network Solutions,
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
701 2006 603 UUNET Technologies, Inc.
7843 615 555 Adelphia Corp.
705 808 532 UUNET Technologies, Inc.
7132 576 442 Southwestern Bell Internet Se
174 456 427 PSINet Inc.
3908 908 413 Supernet, Inc.
4538 418 402 China Education and Research
4323 629 371 Time Warner Communications, I
1221 1262 354 Telstra Pty Ltd
7018 1282 350 AT&T
11371 292 286 Rhythms NetConnections
852 721 274 Telus Advanced Communications
4151 286 270 USDA
209 607 269 Qwest
6347 337 259 SAVVIS Communications Corpora
3352 281 254 Ibernet, Internet Access Netw
1 700 251 GENUITY
7029 263 248 Alltel Information Services,
4355 297 244 EarthLink, Inc.
7066 475 226 Virginia Polytechnic Institut
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
1877 UNALLOCATED 192.108.201.0/24 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
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
192.26.98.0/24 1239 Sprint
192.44.0.0/19 702 UUNET Technologies, Inc.
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 Finland Autonomous Sys
192.83.32.0/19 5515 Sonera Finland Autonomous Sys
192.83.96.0/22 5515 Sonera Finland Autonomous Sys
192.83.100.0/24 5515 Sonera Finland Autonomous Sys
192.91.198.0/24 2568 CTS Network Services
192.92.167.0/24 297 NASA Science Network
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.135.248.0/23 109 Cisco Systems, Inc.
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
192.152.213.0/24 1239 Sprint
192.153.136.0/21 568 DISO-UNRRA
192.156.0.0/19 568 DISO-UNRRA
192.172.0.0/19 568 DISO-UNRRA
192.195.253.0/24 237 Merit Network
192.208.29.0/24 3908 Supernet, Inc.
192.208.30.0/23 3908 Supernet, Inc.
192.243.36.0/23 7168 Northwest Link
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:21 /9:6 /10:7 /11:12 /12:34
/13:90 /14:234 /15:418 /16:7249 /17:1457 /18:2630
/19:7656 /20:7256 /21:5086 /22:7836 /23:9527 /24:66627
/25:201 /26:184 /27:80 /28:75 /29:50 /30:81
/31:1 /32:39
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
2149 2523 3068 Performance Systems, Inc.
702 629 1022 UUNET Technologies, Inc.
705 595 808 UUNET Technologies, Inc.
701 570 2006 UUNET Technologies, Inc.
3908 496 908 Supernet, Inc.
690 466 588 Merit Network
7843 398 615 Adelphia Corp.
174 380 456 PSINet Inc.
7066 380 475 Virginia Polytechnic Institut
7018 336 1282 AT&T
209 276 607 Qwest
6197 249 346 BellSouth Network Solutions,
7029 248 263 Alltel Information Services,
11371 245 292 Rhythms NetConnections
7046 244 598 UUNET Technologies, Inc.
3301 238 397 TeliaNet Sweden
6198 232 319 BellSouth Network Solutions,
18566 219 223 Covad Communications
6517 217 239 Yipes Communications, Inc.
1239 209 809 Sprint
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:507 13:10 15:2 17:6
20:2 24:805 25:1 32:41 38:2750 40:6
44:1 57:13 61:267 62:203 63:1938 64:1235
65:1655 66:964 67:84 68:176 80:251 81:29
128:60 129:140 130:24 131:49 132:11 133:3
134:120 135:8 136:246 137:93 138:148 139:57
140:142 141:121 142:83 143:37 144:151 145:15
146:174 147:138 148:212 149:93 150:40 151:127
152:264 153:33 154:26 155:100 156:77 157:126
158:69 159:127 160:18 161:67 162:154 163:102
164:276 165:131 166:229 167:172 168:130 169:59
170:347 171:3 192:5464 193:2364 194:2077 195:960
196:399 198:3680 199:3235 200:2535 202:3261 203:4646
204:3411 205:2186 206:2746 207:2633 208:2676 209:2691
210:580 211:224 212:901 213:639 214:9 215:19
216:3003 217:455 218:40 219:41
End of report
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