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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 12 Feb, 2002
Analysis Summary
----------------
BGP routing table entries examined: 108016
Prefixes after maximum aggregation: 72017
Unique aggregates announced to Internet: 52723
Total ASes present in the Internet Routing Table: 12527
Origin-only ASes present in the Internet Routing Table: 10842
Origin ASes announcing only one prefix: 4727
Transit ASes present in the Internet Routing Table: 1685
Transit-only ASes present in the Internet Routing Table: 61
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 20
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: 15
Number of addresses announced to Internet: 1164320520
Equivalent to 69 /8s, 102 /16s and 31 /24s
Percentage of available address space announced: 31.4
Percentage of allocated address space announced: 59.5
Percentage of available address space allocated: 52.8
Total number of prefixes smaller than registry allocations: 71996
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 17575
Total APNIC prefixes after maximum aggregation: 10663
Prefixes being announced from the APNIC address blocks: 16078
Unique aggregates announced from the APNIC address blocks: 9877
APNIC Region origin ASes present in the Internet Routing Table: 1447
APNIC Region origin ASes announcing only one prefix: 481
APNIC Region transit ASes present in the Internet Routing Table: 251
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 79474752
Equivalent to 4 /8s, 188 /16s and 176 /24s
Percentage of available APNIC address space announced: 58.8
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: 72460
Total ARIN prefixes after maximum aggregation: 47287
Prefixes being announced from the ARIN address blocks: 51104
Unique aggregates announced from the ARIN address blocks: 17250
ARIN Region origin ASes present in the Internet Routing Table: 7417
ARIN Region origin ASes announcing only one prefix: 2294
ARIN Region transit ASes present in the Internet Routing Table: 763
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 20
Number of ARIN addresses announced to Internet: 185848900
Equivalent to 11 /8s, 19 /16s and 212 /24s
Percentage of available ARIN address space announced: 69.2
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
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: 17981
Total RIPE prefixes after maximum aggregation: 14067
Prefixes being announced from the RIPE address blocks: 14791
Unique aggregates announced from the RIPE address blocks: 9942
RIPE Region origin ASes present in the Internet Routing Table: 3601
RIPE Region origin ASes announcing only one prefix: 1952
RIPE Region transit ASes present in the Internet Routing Table: 655
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 106566656
Equivalent to 6 /8s, 90 /16s and 20 /24s
Percentage of available RIPE address space announced: 70.6
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
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 1313 1258 960 Telstra Pty Ltd
4538 454 1162 16 China Education and Research
703 403 359 306 UUNET Technologies, Inc.
2907 398 1942 365 SINET Japan
2764 387 361 363 connect.com.au pty ltd
7474 300 290 204 Optus Communications Pty Ltd
4755 294 111 86 Videsh Sanchar Nigam Ltd. Aut
4134 270 1874 98 Data Communications Bureau
9394 244 112 3 CHINA RAILWAY Internet(CRNET)
17557 212 16 92 Pakistan Telecom
4766 206 1393 145 Korea Internet Exchange for "
7539 162 220 155 TANet2, sponsored by NSC, TAI
9443 161 44 59 Primus Telecommunications
9768 146 385 88 Korea Telecom
9583 140 32 5 Satyam Infoway Ltd.,
7657 121 22 84 The Internet Group Limited
4197 120 13 5 Global OnLine Japan K.K.
4740 119 16 99 OzEmail ISP
4713 117 914 103 NTT Communications Corporatio
4780 115 186 40 Digital United Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1106 2617 860 UUNET Technologies, Inc.
3301 400 924 353 TeliaNet Sweden
1257 252 487 248 SWIPnet Swedish IP Network
3215 242 570 156 France Telecom / &Equant
680 233 2148 231 DFN-IP service G-WiN
5515 217 705 174 Sonera Finland Autonomous Sys
5400 199 82 96 Concert European Core Network
3320 196 1964 172 Deutsche Telekom AG
786 182 1874 182 The JANET IP Service
719 166 289 120 LANLINK autonomous system
8708 156 21 143 Romania Data Systems S.A.
2856 131 790 120 BTnet UK Regional network
3303 124 577 123 Swisscom Ltd
3269 117 693 71 TELECOM ITALIA
8297 114 40 65 Teleglobe Autonomous System i
12302 113 7 34 MobiFon S.A.
517 100 226 98 KPNQwest Germany GmbH
5511 94 193 83 France Telecom
5603 92 12 59 SiOL Internet d.o.o.
1267 91 1471 41 Infostrada S.p.A.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2085 8286 1512 UUNET Technologies, Inc.
7018 1228 7490 922 AT&T
1 829 8103 604 BBN Planet
3908 811 1662 470 Supernet, Inc.
1239 802 3340 622 Sprint
4323 641 433 242 Time Warner Communications, I
7046 626 850 421 UUNET Technologies, Inc.
852 615 1125 408 Telus Advanced Communications
209 533 1909 304 Qwest
690 487 71 302 Merit Network
7132 455 508 163 Southwestern Bell Internet Se
2914 453 2193 421 Verio, Inc.
3549 439 837 222 Global Crossing
705 407 128 291 UUNET Technologies, Inc.
2149 391 226 327 Performance Systems, Inc.
3561 369 2236 324 Cable & Wireless USA
577 352 588 219 Bell Advanced Communications
3741 348 731 239 The Internet Solution
6197 327 227 161 BellSouth Network Solutions,
2386 324 354 187 AT&T Data Communications Serv
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 454 438 China Education and Research
4323 641 399 Time Warner Communications, I
1221 1313 353 Telstra Pty Ltd
3908 811 341 Supernet, Inc.
7018 1228 306 AT&T
4151 312 296 USDA
7132 455 292 Southwestern Bell Internet Se
11371 278 271 Rhythms NetConnections
702 1106 246 UUNET Technologies, Inc.
9394 244 241 CHINA RAILWAY Internet(CRNET)
6347 317 238 SAVVIS Communications Corpora
209 533 229 Qwest
1 829 225 BBN Planet
7843 261 222 Adelphia Corp.
3549 439 217 Global Crossing
4755 294 208 Videsh Sanchar Nigam Ltd. Aut
852 615 207 Telus Advanced Communications
7046 626 205 UUNET Technologies, Inc.
4355 232 203 EarthLink, Inc.
1580 212 201 HQ, 5th Signal Command
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
96.0.0.0/20 3549 Global Crossing
126.0.0.0/8 7336 Compass Communications
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 BBN Planet
144.7.0.0/16 701 UUNET Technologies, Inc.
153.36.0.0/14 701 UUNET Technologies, Inc.
154.150.0.0/16 6494 IDCI
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
164.235.0.0/16 6025 US DOD NIC Unregistered
201.115.100.0/24 7018 AT&T
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:18 /9:6 /10:7 /11:12 /12:37
/13:91 /14:231 /15:391 /16:7139 /17:1427 /18:2503
/19:7353 /20:6718 /21:4802 /22:7276 /23:8917 /24:60061
/25:220 /26:277 /27:131 /28:98 /29:101 /30:160
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1339 2085 UUNET Technologies, Inc.
1221 1167 1313 Telstra Pty Ltd
702 731 1106 UUNET Technologies, Inc.
7018 644 1228 AT&T
3908 566 811 Supernet, Inc.
4323 523 641 Time Warner Communications, I
690 483 487 Merit Network
1239 469 802 Sprint
7046 452 626 UUNET Technologies, Inc.
1 429 829 BBN Planet
852 375 615 Telus Advanced Communications
209 355 533 Qwest
705 344 407 UUNET Technologies, Inc.
2764 343 387 connect.com.au pty ltd
703 327 403 UUNET Technologies, Inc.
3549 306 439 Global Crossing
2149 297 391 Performance Systems, Inc.
7066 275 304 Virginia Polytechnic Institut
6197 274 327 BellSouth Network Solutions,
11371 272 278 Rhythms NetConnections
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:1 9:1 12:474 13:10 15:1 17:5
20:5 24:666 25:1 32:68 38:9 40:6
44:1 57:14 61:222 62:165 63:1877 64:1102
65:1038 66:674 67:32 68:5 80:178 81:4
128:60 129:120 130:24 131:52 132:11 133:3
134:127 135:10 136:244 137:105 138:148 139:47
140:163 141:61 142:67 143:39 144:154 145:12
146:217 147:151 148:146 149:86 150:40 151:43
152:321 153:32 154:8 155:81 156:77 157:117
158:81 159:88 160:24 161:55 162:101 163:115
164:93 165:126 166:222 167:167 168:117 169:48
170:291 171:2 192:5435 193:2227 194:2032 195:790
196:443 198:3730 199:3249 200:2297 201:1 202:2990
203:4496 204:3282 205:2158 206:2516 207:2628 208:2581
209:2829 210:519 211:146 212:884 213:551 214:9
215:18 216:2949 217:436 218:10
End of report
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