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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 27 Aug, 2002
Analysis Summary
----------------
BGP routing table entries examined: 114857
Prefixes after maximum aggregation: 74430
Unique aggregates announced to Internet: 53952
Total ASes present in the Internet Routing Table: 13612
Origin-only ASes present in the Internet Routing Table: 11777
Origin ASes announcing only one prefix: 5254
Transit ASes present in the Internet Routing Table: 1835
Transit-only ASes present in the Internet Routing Table: 60
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: 1
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 34
Number of addresses announced to Internet: 1189015716
Equivalent to 70 /8s, 222 /16s and 240 /24s
Percentage of available address space announced: 32.1
Percentage of allocated address space announced: 58.8
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 46767
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19028
Total APNIC prefixes after maximum aggregation: 11361
Prefixes being announced from the APNIC address blocks: 17546
Unique aggregates announced from the APNIC address blocks: 10761
APNIC Region origin ASes present in the Internet Routing Table: 1596
APNIC Region origin ASes announcing only one prefix: 524
APNIC Region transit ASes present in the Internet Routing Table: 275
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 93415776
Equivalent to 5 /8s, 145 /16s and 105 /24s
Percentage of available APNIC address space announced: 61.4
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: 76429
Total ARIN prefixes after maximum aggregation: 48377
Prefixes being announced from the ARIN address blocks: 54312
Unique aggregates announced from the ARIN address blocks: 16921
ARIN Region origin ASes present in the Internet Routing Table: 7994
ARIN Region origin ASes announcing only one prefix: 2583
ARIN Region transit ASes present in the Internet Routing Table: 801
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 195748976
Equivalent to 11 /8s, 170 /16s and 228 /24s
Percentage of available ARIN address space announced: 68.6
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, 68/7, 199/8, 200/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 19400
Total RIPE prefixes after maximum aggregation: 14692
Prefixes being announced from the RIPE address blocks: 16113
Unique aggregates announced from the RIPE address blocks: 10609
RIPE Region origin ASes present in the Internet Routing Table: 3962
RIPE Region origin ASes announcing only one prefix: 2147
RIPE Region transit ASes present in the Internet Routing Table: 743
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 113494528
Equivalent to 6 /8s, 195 /16s and 202 /24s
Percentage of available RIPE address space announced: 75.2
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 1209 1189 887 Telstra Pty Ltd
4538 579 1330 18 China Education and Research
703 411 376 320 UUNET
2907 362 1816 341 SINET Japan
2764 358 358 329 connect.com.au pty ltd
7474 317 292 212 Optus Communications Pty Ltd
4134 301 2222 96 Data Communications Bureau
4755 285 142 74 Videsh Sanchar Nigam Ltd. Aut
17557 273 20 97 Pakistan Telecom
4766 250 1507 157 Korea Internet Exchange for "
4814 231 79 14 China Telecom (Group)
17676 191 2978 34 XTAGE CORPORATION
9443 178 57 66 Primus Telecommunications
9583 171 32 5 Satyam Infoway Ltd.,
7539 148 205 142 TANet2, sponsored by NSC, TAI
9768 144 385 74 Korea Telecom
4515 140 102 81 Star Internet Services Ltd.
7657 130 22 90 The Internet Group Limited
9800 121 187 23 CHINA UNICOM
4621 115 11 63 UNINET-TH
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 886 2428 743 UUNET - Commercial IP service
3301 400 924 347 TeliaNet Sweden
5515 319 783 179 Sonera Solution Autonomous Sy
3215 291 641 180 France Telecom Transpac
3320 246 1964 212 Deutsche Telekom AG
680 237 2150 234 DFN-IP service G-WiN
5400 213 85 101 BT Ignite European Backbone
1257 210 444 205 SWIPnet Swedish IP Network
719 190 306 130 LANLINK autonomous system
786 177 1873 177 The JANET IP Service
8708 146 41 142 Romania Data Systems S.A.
3303 143 546 142 Swisscom Ltd
2856 126 786 116 BTnet UK Regional network
12302 124 18 31 MobiFon S.A.
3246 119 372 112 Song Networks
5511 110 192 88 France Telecom
3233 108 10 9 RNC - Romanian Natioanal R&D
3269 106 658 63 TELECOM ITALIA
8220 100 166 96 COLT Internet - International
2874 99 85 38 Global One Services AB
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1786 9126 1359 UUNET Technologies, Inc.
7018 1283 7197 919 AT&T
3908 1023 1661 499 Supernet, Inc.
1239 833 3208 647 Sprint
852 730 1175 451 Telus Advanced Communications
1 667 8039 431 GENUITY
7843 651 371 274 Adelphia Corp.
7046 614 882 315 UUNET Technologies, Inc.
7132 594 664 137 Southwestern Bell Internet Se
4323 557 450 176 Time Warner Communications, I
209 521 2074 346 Qwest
690 518 75 325 Merit Network
7066 489 203 256 Virginia Polytechnic Institut
2548 461 1145 273 Business Internet, Inc.
3549 419 726 302 Global Crossing
15290 374 249 188 AT&T Canada IES
6197 362 254 182 BellSouth Network Solutions,
2914 358 2042 358 Verio, Inc.
6347 349 370 76 SAVVIS Communications Corpora
376 339 391 106 Reseau Interordinateurs Scien
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 579 561 China Education and Research
3908 1023 524 Supernet, Inc.
7132 594 457 Southwestern Bell Internet Se
4323 557 381 Time Warner Communications, I
7843 651 377 Adelphia Corp.
7018 1283 364 AT&T
1221 1209 322 Telstra Pty Ltd
7046 614 299 UUNET Technologies, Inc.
4151 304 288 USDA
852 730 279 Telus Advanced Communications
6347 349 273 SAVVIS Communications Corpora
4355 338 266 EarthLink, Inc.
18566 263 259 Covad Communications
1 667 236 GENUITY
7066 489 233 Virginia Polytechnic Institut
376 339 233 Reseau Interordinateurs Scien
4814 231 217 China Telecom (Group)
4755 285 211 Videsh Sanchar Nigam Ltd. Aut
4134 301 205 Data Communications Bureau
1580 211 200 ANOSCEUR
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
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
192.44.0.0/19 702 UUNET - Commercial IP service
192.58.92.0/24 19548 Adelphia Business Solutions
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 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 /8:20 /9:6 /10:7 /11:12 /12:37
/13:86 /14:235 /15:424 /16:7312 /17:1482 /18:2678
/19:7808 /20:7597 /21:5305 /22:8018 /23:9697 /24:63276
/25:225 /26:232 /27:138 /28:86 /29:46 /30:85
/31:1 /32:44
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 603 1023 Supernet, Inc.
702 540 886 UUNET - Commercial IP service
701 494 1786 UUNET Technologies, Inc.
690 464 518 Merit Network
7843 451 651 Adelphia Corp.
7066 388 489 Virginia Polytechnic Institut
7018 379 1283 AT&T
7046 291 614 UUNET Technologies, Inc.
6197 263 362 BellSouth Network Solutions,
18566 259 263 Covad Communications
6198 242 318 BellSouth Network Solutions,
3301 237 400 TeliaNet Sweden
1239 225 833 Sprint
3215 223 291 France Telecom Transpac
1580 199 211 ANOSCEUR
209 196 521 Qwest
4355 195 338 EarthLink, Inc.
4323 191 557 Time Warner Communications, I
5400 187 213 BT Ignite European Backbone
4538 186 579 China Education and Research
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:1 4:1 12:545 13:10 15:2 17:6
20:4 24:815 25:1 32:41 38:9 40:6
44:1 55:1 57:14 61:315 62:235 63:1846
64:1229 65:1467 66:1063 67:97 68:92 80:263
81:46 128:65 129:158 130:21 131:55 132:11
133:2 134:124 135:9 136:502 137:95 138:148
139:67 140:188 141:73 142:68 143:50 144:140
145:17 146:258 147:142 148:248 149:80 150:41
151:57 152:265 153:36 154:11 155:116 156:71
157:113 158:67 159:140 160:20 161:77 162:123
163:87 164:264 165:128 166:104 167:266 168:121
169:61 170:191 171:3 192:5487 193:2375 194:2078
195:806 196:413 198:3678 199:3130 200:2633 202:3339
203:4757 204:3259 205:2141 206:2510 207:2515 208:2601
209:2699 210:608 211:239 212:880 213:718 214:8
215:20 216:2854 217:500 218:34 219:1
End of report
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