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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 Sun 04 Aug, 2002
Analysis Summary
----------------
BGP routing table entries examined: 114484
Prefixes after maximum aggregation: 74051
Unique aggregates announced to Internet: 54567
Total ASes present in the Internet Routing Table: 13486
Origin-only ASes present in the Internet Routing Table: 11665
Origin ASes announcing only one prefix: 5179
Transit ASes present in the Internet Routing Table: 1821
Transit-only ASes present in the Internet Routing Table: 53
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 23
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: 36
Number of addresses announced to Internet: 1190918741
Equivalent to 70 /8s, 251 /16s and 250 /24s
Percentage of available address space announced: 32.1
Percentage of allocated address space announced: 59.4
Percentage of available address space allocated: 54.1
Total number of prefixes smaller than registry allocations: 46469
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18862
Total APNIC prefixes after maximum aggregation: 11231
Prefixes being announced from the APNIC address blocks: 17407
Unique aggregates announced from the APNIC address blocks: 10607
APNIC Region origin ASes present in the Internet Routing Table: 1579
APNIC Region origin ASes announcing only one prefix: 516
APNIC Region transit ASes present in the Internet Routing Table: 278
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 90325472
Equivalent to 5 /8s, 98 /16s and 65 /24s
Percentage of available APNIC address space announced: 59.4
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: 76253
Total ARIN prefixes after maximum aggregation: 48207
Prefixes being announced from the ARIN address blocks: 54065
Unique aggregates announced from the ARIN address blocks: 17948
ARIN Region origin ASes present in the Internet Routing Table: 7938
ARIN Region origin ASes announcing only one prefix: 2551
ARIN Region transit ASes present in the Internet Routing Table: 786
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 194076496
Equivalent to 11 /8s, 145 /16s and 95 /24s
Percentage of available ARIN address space announced: 72.3
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: 19369
Total RIPE prefixes after maximum aggregation: 14613
Prefixes being announced from the RIPE address blocks: 16046
Unique aggregates announced from the RIPE address blocks: 10505
RIPE Region origin ASes present in the Internet Routing Table: 3916
RIPE Region origin ASes announcing only one prefix: 2112
RIPE Region transit ASes present in the Internet Routing Table: 742
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 112874016
Equivalent to 6 /8s, 186 /16s and 82 /24s
Percentage of available RIPE address space announced: 74.8
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 1250 1191 895 Telstra Pty Ltd
4538 562 1279 27 China Education and Research
703 414 376 326 UUNET
2907 364 1848 342 SINET Japan
2764 359 358 330 connect.com.au pty ltd
7474 320 296 213 Optus Communications Pty Ltd
17557 298 20 94 Pakistan Telecom
4134 293 2158 103 Data Communications Bureau
4755 288 112 77 Videsh Sanchar Nigam Ltd. Aut
4766 249 1506 156 Korea Internet Exchange for "
4814 220 79 14 China Telecom (Group)
9583 182 32 5 Satyam Infoway Ltd.,
17676 173 2690 33 XTAGE CORPORATION
9443 170 45 68 Primus Telecommunications
7539 148 189 143 TANet2, sponsored by NSC, TAI
9768 144 385 74 Korea Telecom
7657 133 22 91 The Internet Group Limited
9800 125 191 18 CHINA UNICOM
4621 115 11 62 UNINET-TH
4713 115 1009 106 NTT Communications Corporatio
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 911 2436 760 UUNET - Commercial IP service
3301 396 923 346 TeliaNet Sweden
5515 320 783 180 Sonera Solution Autonomous Sy
3215 289 641 178 France Telecom Transpac
3320 268 1963 207 Deutsche Telekom AG
680 235 2150 232 DFN-IP service G-WiN
5400 210 85 98 BT Ignite European Backbone
1257 208 446 203 SWIPnet Swedish IP Network
719 183 306 128 LANLINK autonomous system
786 177 1873 177 The JANET IP Service
8708 142 23 138 Romania Data Systems S.A.
3303 141 548 140 Swisscom Ltd
2856 128 787 118 BTnet UK Regional network
12302 124 18 31 MobiFon S.A.
3269 113 690 68 TELECOM ITALIA
3246 112 317 107 Song Networks
5511 110 192 88 France Telecom
3233 105 10 9 RNC - Romanian Natioanal R&D
2874 102 85 39 Global One Services AB
8297 96 47 52 BCE Teleglobe Canada Inc.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1806 9226 1363 UUNET Technologies, Inc.
7018 1303 7435 943 AT&T
3908 1030 1656 488 Supernet, Inc.
1239 829 3249 649 Sprint
852 754 1175 451 Telus Advanced Communications
1 697 8051 446 GENUITY
4323 637 442 261 Time Warner Communications, I
7843 611 366 231 Adelphia Corp.
7132 588 663 135 Southwestern Bell Internet Se
209 541 2025 341 Qwest
7046 520 886 324 UUNET Technologies, Inc.
690 518 75 329 Merit Network
7066 486 203 254 Virginia Polytechnic Institut
7029 452 164 54 Alltel Information Services,
3549 433 822 309 Global Crossing
6197 378 599 48 BellSouth Network Solutions,
15290 377 297 193 AT&T Canada IES
2149 367 166 270 Performance Systems, Inc.
2914 363 2081 363 Verio, Inc.
6347 346 370 76 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1030 542 Supernet, Inc.
4538 562 535 China Education and Research
7132 588 453 Southwestern Bell Internet Se
7029 452 398 Alltel Information Services,
7843 611 380 Adelphia Corp.
4323 637 376 Time Warner Communications, I
7018 1303 360 AT&T
1221 1250 355 Telstra Pty Ltd
6197 378 330 BellSouth Network Solutions,
852 754 303 Telus Advanced Communications
1657 279 277 University of Louisville
4151 289 273 USDA
6347 346 270 SAVVIS Communications Corpora
4355 323 257 EarthLink, Inc.
1 697 251 GENUITY
18566 237 233 Covad Communications
7066 486 232 Virginia Polytechnic Institut
4755 288 211 Videsh Sanchar Nigam Ltd. Aut
7303 271 211 Telecom Argentina Stet-France
4814 220 206 China Telecom (Group)
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
192.5.154.0/24 16588 Spider Web Hosting Solutions
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
192.92.167.0/24 297 NASA Science Network
192.108.46.0/23 680 DFN-IP service G-WiN
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
192.195.253.0/24 237 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 /8:19 /9:7 /10:7 /11:12 /12:36
/13:86 /14:232 /15:416 /16:7283 /17:1471 /18:2669
/19:7715 /20:7509 /21:5277 /22:7994 /23:9663 /24:63270
/25:200 /26:176 /27:98 /28:88 /29:67 /30:114
/31:0 /32:75
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 608 1030 Supernet, Inc.
702 554 911 UUNET - Commercial IP service
701 493 1806 UUNET Technologies, Inc.
690 464 518 Merit Network
7843 410 611 Adelphia Corp.
7066 389 486 Virginia Polytechnic Institut
7018 357 1303 AT&T
7029 357 452 Alltel Information Services,
1657 278 279 University of Louisville
6197 264 378 BellSouth Network Solutions,
6198 243 316 BellSouth Network Solutions,
3301 234 396 TeliaNet Sweden
18566 233 237 Covad Communications
209 221 541 Qwest
3215 221 289 France Telecom Transpac
1239 213 829 Sprint
1580 200 213 ANOSCEUR
3320 200 268 Deutsche Telekom AG
1 195 697 GENUITY
7046 190 520 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:527 13:10 15:2 17:6 20:3
24:700 25:1 32:41 38:9 40:6 44:1
57:13 61:326 62:240 63:1868 64:1222 65:1416
66:972 67:95 68:71 80:257 81:37 128:64
129:131 130:22 131:55 132:11 133:2 134:122
135:9 136:344 137:95 138:151 139:55 140:175
141:43 142:70 143:50 144:143 145:17 146:189
147:142 148:241 149:79 150:40 151:67 152:270
153:36 154:12 155:114 156:69 157:127 158:69
159:134 160:19 161:75 162:214 163:86 164:264
165:129 166:218 167:259 168:293 169:60 170:230
171:3 192:5466 193:2370 194:2088 195:800 196:414
198:3614 199:3155 200:2731 202:3307 203:4743 204:3252
205:2184 206:2660 207:2502 208:2600 209:2713 210:596
211:238 212:900 213:727 214:9 215:20 216:2850
217:476 218:31
End of report
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