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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 11 Jul, 2002
Analysis Summary
----------------
BGP routing table entries examined: 113517
Prefixes after maximum aggregation: 73512
Unique aggregates announced to Internet: 54357
Total ASes present in the Internet Routing Table: 13316
Origin-only ASes present in the Internet Routing Table: 11534
Origin ASes announcing only one prefix: 5103
Transit ASes present in the Internet Routing Table: 1782
Transit-only ASes present in the Internet Routing Table: 45
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: 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: 1192804668
Equivalent to 71 /8s, 24 /16s and 193 /24s
Percentage of available address space announced: 32.2
Percentage of allocated address space announced: 59.5
Percentage of available address space allocated: 54.1
Total number of prefixes smaller than registry allocations: 45787
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18598
Total APNIC prefixes after maximum aggregation: 11056
Prefixes being announced from the APNIC address blocks: 17127
Unique aggregates announced from the APNIC address blocks: 10437
APNIC Region origin ASes present in the Internet Routing Table: 1555
APNIC Region origin ASes announcing only one prefix: 501
APNIC Region transit ASes present in the Internet Routing Table: 272
Average APNIC Region AS path length visible: 5.2
Max APNIC Region AS path length visible: 13
Number of APNIC addresses announced to Internet: 88472224
Equivalent to 5 /8s, 69 /16s and 250 /24s
Percentage of available APNIC address space announced: 58.2
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: 75635
Total ARIN prefixes after maximum aggregation: 47962
Prefixes being announced from the ARIN address blocks: 53890
Unique aggregates announced from the ARIN address blocks: 17947
ARIN Region origin ASes present in the Internet Routing Table: 7834
ARIN Region origin ASes announcing only one prefix: 2507
ARIN Region transit ASes present in the Internet Routing Table: 770
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 189308244
Equivalent to 11 /8s, 72 /16s and 157 /24s
Percentage of available ARIN address space announced: 70.5
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: 19283
Total RIPE prefixes after maximum aggregation: 14494
Prefixes being announced from the RIPE address blocks: 16016
Unique aggregates announced from the RIPE address blocks: 10445
RIPE Region origin ASes present in the Internet Routing Table: 3883
RIPE Region origin ASes announcing only one prefix: 2095
RIPE Region transit ASes present in the Internet Routing Table: 718
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 112415008
Equivalent to 6 /8s, 179 /16s and 81 /24s
Percentage of available RIPE address space announced: 74.4
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 1258 1207 901 Telstra Pty Ltd
4538 449 1258 18 China Education and Research
703 409 361 323 UUNET Technologies, Inc.
2907 372 1883 345 SINET Japan
2764 367 358 337 connect.com.au pty ltd
7474 316 292 211 Optus Communications Pty Ltd
17557 307 20 109 Pakistan Telecom
4755 300 116 82 Videsh Sanchar Nigam Ltd. Aut
4134 290 2112 106 Data Communications Bureau
9443 252 45 66 Primus Telecommunications
4766 217 1506 155 Korea Internet Exchange for "
4814 211 79 14 China Telecom (Group) - Beiji
9583 177 32 5 Satyam Infoway Ltd.,
17676 157 2434 26 XTAGE CORPORATION
9768 143 384 73 Korea Telecom
7657 129 22 87 The Internet Group Limited
9800 125 191 18 CHINA UNICOM
4780 123 186 39 Digital United Inc.
4713 115 1009 106 NTT Communications Corporatio
4621 111 11 60 UNINET-TH
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 945 2459 779 UUNET Technologies, Inc.
3301 396 924 346 TeliaNet Sweden
3352 277 535 29 Ibernet, Internet Access Netw
3215 266 628 166 France Telecom / &Equant
3320 253 1946 192 Deutsche Telekom AG
5515 245 783 172 Sonera Finland Autonomous Sys
680 233 2149 230 DFN-IP service G-WiN
1257 205 430 202 SWIPnet Swedish IP Network
5400 205 83 94 Concert European Core Network
719 189 306 128 LANLINK autonomous system
786 177 1873 177 The JANET IP Service
8708 140 23 137 Romania Data Systems S.A.
3303 137 547 136 Swisscom Ltd
2856 128 787 118 BTnet UK Regional network
12302 121 17 33 MobiFon S.A.
3269 113 690 68 TELECOM ITALIA
3246 112 317 107 Song Networks / Clinet
5511 109 192 87 France Telecom
3233 103 10 9 RNC - Romanian Natioanal R&D
2874 102 85 39 Global One Services AB
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1852 9256 1378 UUNET Technologies, Inc.
7018 1290 7421 936 AT&T
3908 925 1643 501 Supernet, Inc.
1239 842 3339 659 Sprint
852 755 1173 449 Telus Advanced Communications
1 699 8075 448 GENUITY
4323 637 439 259 Time Warner Communications, I
7843 617 360 229 Adelphia Corp.
7132 579 659 133 Southwestern Bell Internet Se
7046 562 889 359 UUNET Technologies, Inc.
209 542 2010 347 Qwest
690 511 74 324 Merit Network
7066 482 203 252 Virginia Polytechnic Institut
7029 462 165 56 Alltel Information Services,
2149 438 180 332 Performance Systems, Inc.
3549 436 839 314 Global Crossing
2914 409 2100 386 Verio, Inc.
15290 379 297 194 AT&T Canada IES
6197 368 547 36 BellSouth Network Solutions,
6347 338 370 77 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7132 579 446 Southwestern Bell Internet Se
4538 449 431 China Education and Research
3908 925 424 Supernet, Inc.
7029 462 406 Alltel Information Services,
7843 617 388 Adelphia Corp.
4323 637 378 Time Warner Communications, I
1221 1258 357 Telstra Pty Ltd
7018 1290 354 AT&T
6197 368 332 BellSouth Network Solutions,
852 755 306 Telus Advanced Communications
11371 292 286 Rhythms NetConnections
4151 286 270 USDA
6347 338 261 SAVVIS Communications Corpora
1 699 251 GENUITY
4355 302 250 EarthLink, Inc.
3352 277 248 Ibernet, Internet Access Netw
7066 482 230 Virginia Polytechnic Institut
18566 229 225 Covad Communications
4755 300 218 Videsh Sanchar Nigam Ltd. Aut
7303 268 207 Telecom Argentina Stet-France
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
55000 RESERVED 81.5.64.0/20 5467 MIPT-NET
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 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 /8:19 /9:6 /10:7 /11:12 /12:36
/13:87 /14:233 /15:419 /16:7245 /17:1460 /18:2652
/19:7689 /20:7359 /21:5154 /22:7922 /23:9638 /24:62912
/25:202 /26:171 /27:86 /28:65 /29:47 /30:75
/31:0 /32:21
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 584 945 UUNET Technologies, Inc.
3908 512 925 Supernet, Inc.
701 505 1852 UUNET Technologies, Inc.
690 453 511 Merit Network
7843 422 617 Adelphia Corp.
7066 387 482 Virginia Polytechnic Institut
7029 365 462 Alltel Information Services,
7018 347 1290 AT&T
6197 254 368 BellSouth Network Solutions,
11371 245 292 Rhythms NetConnections
6198 237 309 BellSouth Network Solutions,
3301 234 396 TeliaNet Sweden
18566 225 229 Covad Communications
1239 216 842 Sprint
7046 216 562 UUNET Technologies, Inc.
209 213 542 Qwest
3352 201 277 Ibernet, Internet Access Netw
3215 199 266 France Telecom / &Equant
1580 195 208 HQ, 5th Signal Command
1 192 699 GENUITY
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:502 13:10 15:2 17:6
20:3 24:793 25:1 32:41 38:9 40:6
44:1 57:13 61:275 62:218 63:1897 64:1261
65:1377 66:1010 67:89 68:46 80:245 81:33
128:63 129:133 130:22 131:52 132:11 133:2
134:124 135:8 136:242 137:92 138:142 139:70
140:143 141:123 142:78 143:41 144:151 145:14
146:188 147:138 148:219 149:86 150:43 151:67
152:262 153:34 154:14 155:107 156:77 157:126
158:70 159:135 160:18 161:70 162:214 163:94
164:265 165:131 166:219 167:170 168:126 169:61
170:281 171:3 192:5457 193:2368 194:2100 195:899
196:396 198:3641 199:3187 200:2600 202:3297 203:4668
204:3266 205:2181 206:2685 207:2539 208:2651 209:2668
210:588 211:231 212:905 213:658 214:9 215:19
216:2834 217:466 218:28
End of report
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