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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 Thu 04 Jul, 2002
Analysis Summary
----------------
BGP routing table entries examined: 113000
Prefixes after maximum aggregation: 73403
Unique aggregates announced to Internet: 54018
Total ASes present in the Internet Routing Table: 13295
Origin-only ASes present in the Internet Routing Table: 11515
Origin ASes announcing only one prefix: 5107
Transit ASes present in the Internet Routing Table: 1780
Transit-only ASes present in the Internet Routing Table: 47
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 16
Illegal AS announcements present in the Routing Table: 3
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: 1194856924
Equivalent to 71 /8s, 56 /16s and 17 /24s
Percentage of available address space announced: 32.2
Percentage of allocated address space announced: 60.1
Percentage of available address space allocated: 53.7
Total number of prefixes smaller than registry allocations: 45554
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18507
Total APNIC prefixes after maximum aggregation: 11063
Prefixes being announced from the APNIC address blocks: 16995
Unique aggregates announced from the APNIC address blocks: 10463
APNIC Region origin ASes present in the Internet Routing Table: 1552
APNIC Region origin ASes announcing only one prefix: 507
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: 87971168
Equivalent to 5 /8s, 62 /16s and 85 /24s
Percentage of available APNIC address space announced: 65.0
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: 75374
Total ARIN prefixes after maximum aggregation: 47859
Prefixes being announced from the ARIN address blocks: 53743
Unique aggregates announced from the ARIN address blocks: 17619
ARIN Region origin ASes present in the Internet Routing Table: 7823
ARIN Region origin ASes announcing only one prefix: 2510
ARIN Region transit ASes present in the Internet Routing Table: 769
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 192563540
Equivalent to 11 /8s, 122 /16s and 73 /24s
Percentage of available ARIN address space announced: 71.7
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: 19118
Total RIPE prefixes after maximum aggregation: 14481
Prefixes being announced from the RIPE address blocks: 15855
Unique aggregates announced from the RIPE address blocks: 10459
RIPE Region origin ASes present in the Internet Routing Table: 3873
RIPE Region origin ASes announcing only one prefix: 2090
RIPE Region transit ASes present in the Internet Routing Table: 716
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 111935008
Equivalent to 6 /8s, 171 /16s and 254 /24s
Percentage of available RIPE address space announced: 74.1
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 1266 1223 906 Telstra Pty Ltd
4538 445 1258 18 China Education and Research
703 400 357 318 UUNET Technologies, Inc.
2907 371 1902 346 SINET Japan
2764 368 358 337 connect.com.au pty ltd
7474 310 291 207 Optus Communications Pty Ltd
17557 306 20 109 Pakistan Telecom
4755 301 119 80 Videsh Sanchar Nigam Ltd. Aut
4134 291 2114 107 Data Communications Bureau
9443 261 45 66 Primus Telecommunications
4766 217 1506 155 Korea Internet Exchange for "
4814 206 79 14 China Telecom (Group) - Beiji
9583 175 32 5 Satyam Infoway Ltd.,
7539 155 203 150 TANet2, sponsored by NSC, TAI
17676 152 2354 23 XTAGE CORPORATION
9768 144 385 74 Korea Telecom
7657 130 22 88 The Internet Group Limited
9800 125 191 18 CHINA UNICOM
4621 111 11 61 UNINET-TH
4739 111 56 102 Commerical Internet eXchange
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 951 2462 784 UUNET Technologies, Inc.
3301 396 924 346 TeliaNet Sweden
3352 280 536 30 Ibernet, Internet Access Netw
3215 267 630 166 France Telecom / &Equant
3320 244 1947 196 Deutsche Telekom AG
680 233 2149 230 DFN-IP service G-WiN
5515 206 783 172 Sonera Finland Autonomous Sys
1257 205 430 202 SWIPnet Swedish IP Network
5400 205 83 94 Concert European Core Network
719 190 306 128 LANLINK autonomous system
786 177 1873 176 The JANET IP Service
8708 141 23 138 Romania Data Systems S.A.
3303 134 546 133 Swisscom Ltd
2856 126 786 116 BTnet UK Regional network
12302 123 18 36 MobiFon S.A.
3246 112 301 107 Song Networks / Clinet
3269 111 690 68 TELECOM ITALIA
5511 108 192 87 France Telecom
3233 104 10 9 RNC - Romanian Natioanal R&D
2874 101 85 39 Global One Services AB
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1847 9256 1377 UUNET Technologies, Inc.
7018 1284 7422 930 AT&T
3908 921 1643 497 Supernet, Inc.
1239 825 3343 648 Sprint
1 695 8075 446 GENUITY
852 681 1173 447 Telus Advanced Communications
4323 632 438 259 Time Warner Communications, I
209 609 2011 349 Qwest
7843 606 356 227 Adelphia Corp.
7132 579 659 133 Southwestern Bell Internet Se
7046 567 889 364 UUNET Technologies, Inc.
690 513 75 315 Merit Network
7066 479 202 251 Virginia Polytechnic Institut
7029 475 167 58 Alltel Information Services,
2149 444 180 337 Performance Systems, Inc.
3549 441 839 317 Global Crossing
2914 407 2100 384 Verio, Inc.
15290 381 297 196 AT&T Canada IES
6197 347 248 169 BellSouth Network Solutions,
6347 337 370 78 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7132 579 446 Southwestern Bell Internet Se
4538 445 427 China Education and Research
3908 921 424 Supernet, Inc.
7029 475 417 Alltel Information Services,
7843 606 379 Adelphia Corp.
4323 632 373 Time Warner Communications, I
1221 1266 360 Telstra Pty Ltd
7018 1284 354 AT&T
11371 292 286 Rhythms NetConnections
4151 289 273 USDA
209 609 260 Qwest
6347 337 259 SAVVIS Communications Corpora
3352 280 250 Ibernet, Internet Access Netw
1 695 249 GENUITY
4355 300 248 EarthLink, Inc.
852 681 234 Telus Advanced Communications
7066 479 228 Virginia Polytechnic Institut
18566 228 224 Covad Communications
4755 301 221 Videsh Sanchar Nigam Ltd. Aut
6198 324 219 BellSouth Network Solutions,
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
26078 UNALLOCATED 65.242.21.0/24 701 UUNET Technologies,
65000 PRIVATE 145.8.176.0/24 12469 Infonet Netherlands
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
192.26.98.0/24 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 /8:20 /9:6 /10:7 /11:12 /12:36
/13:87 /14:233 /15:418 /16:7226 /17:1451 /18:2630
/19:7684 /20:7329 /21:5141 /22:7892 /23:9583 /24:62611
/25:196 /26:162 /27:72 /28:64 /29:44 /30:73
/31:0 /32:23
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 589 951 UUNET Technologies, Inc.
3908 510 921 Supernet, Inc.
701 507 1847 UUNET Technologies, Inc.
690 454 513 Merit Network
7843 414 606 Adelphia Corp.
7066 384 479 Virginia Polytechnic Institut
7029 373 475 Alltel Information Services,
7018 347 1284 AT&T
209 273 609 Qwest
6197 249 347 BellSouth Network Solutions,
11371 245 292 Rhythms NetConnections
6198 237 324 BellSouth Network Solutions,
3301 234 396 TeliaNet Sweden
18566 224 228 Covad Communications
7046 218 567 UUNET Technologies, Inc.
1239 210 825 Sprint
3352 204 280 Ibernet, Internet Access Netw
1580 203 233 HQ, 5th Signal Command
3215 199 267 France Telecom / &Equant
1 193 695 GENUITY
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:498 13:10 15:2 17:6
20:2 24:787 25:1 32:41 38:9 40:6
44:1 57:13 61:264 62:208 63:1896 64:1249
65:1415 66:977 67:89 68:44 80:254 81:33
128:63 129:135 130:22 131:48 132:11 133:2
134:121 135:8 136:243 137:91 138:149 139:69
140:175 141:123 142:81 143:39 144:153 145:14
146:183 147:136 148:221 149:90 150:40 151:67
152:260 153:34 154:14 155:106 156:77 157:128
158:70 159:128 160:18 161:68 162:212 163:99
164:269 165:133 166:220 167:170 168:126 169:61
170:249 171:3 192:5431 193:2335 194:2059 195:916
196:395 198:3611 199:3182 200:2575 202:3254 203:4652
204:3257 205:2176 206:2676 207:2547 208:2662 209:2645
210:585 211:228 212:886 213:635 214:9 215:19
216:2841 217:470 218:27
End of report
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