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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 16 Jul, 2002
Analysis Summary
----------------
BGP routing table entries examined: 114238
Prefixes after maximum aggregation: 73604
Unique aggregates announced to Internet: 54564
Total ASes present in the Internet Routing Table: 13339
Origin-only ASes present in the Internet Routing Table: 11543
Origin ASes announcing only one prefix: 5108
Transit ASes present in the Internet Routing Table: 1796
Transit-only ASes present in the Internet Routing Table: 50
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: 12
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 37
Number of addresses announced to Internet: 1177170488
Equivalent to 70 /8s, 42 /16s and 50 /24s
Percentage of available address space announced: 31.8
Percentage of allocated address space announced: 58.7
Percentage of available address space allocated: 54.1
Total number of prefixes smaller than registry allocations: 46333
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18788
Total APNIC prefixes after maximum aggregation: 11127
Prefixes being announced from the APNIC address blocks: 17303
Unique aggregates announced from the APNIC address blocks: 10510
APNIC Region origin ASes present in the Internet Routing Table: 1561
APNIC Region origin ASes announcing only one prefix: 506
APNIC Region transit ASes present in the Internet Routing Table: 278
Average APNIC Region AS path length visible: 5.2
Max APNIC Region AS path length visible: 13
Number of APNIC addresses announced to Internet: 89050016
Equivalent to 5 /8s, 78 /16s and 203 /24s
Percentage of available APNIC address space announced: 58.6
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: 75747
Total ARIN prefixes after maximum aggregation: 47963
Prefixes being announced from the ARIN address blocks: 53817
Unique aggregates announced from the ARIN address blocks: 18031
ARIN Region origin ASes present in the Internet Routing Table: 7853
ARIN Region origin ASes announcing only one prefix: 2512
ARIN Region transit ASes present in the Internet Routing Table: 775
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 189462864
Equivalent to 11 /8s, 74 /16s and 249 /24s
Percentage of available ARIN address space announced: 70.6
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, 68/8, 199/8, 200/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 19692
Total RIPE prefixes after maximum aggregation: 14514
Prefixes being announced from the RIPE address blocks: 16252
Unique aggregates announced from the RIPE address blocks: 10478
RIPE Region origin ASes present in the Internet Routing Table: 3877
RIPE Region origin ASes announcing only one prefix: 2090
RIPE Region transit ASes present in the Internet Routing Table: 724
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 112630816
Equivalent to 6 /8s, 182 /16s and 156 /24s
Percentage of available RIPE address space announced: 74.6
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 1256 1207 897 Telstra Pty Ltd
4538 557 1290 19 China Education and Research
703 409 359 325 UUNET Technologies, Inc.
2907 366 1865 341 SINET Japan
2764 360 358 331 connect.com.au pty ltd
7474 315 292 210 Optus Communications Pty Ltd
4755 295 114 77 Videsh Sanchar Nigam Ltd. Aut
17557 295 20 106 Pakistan Telecom
4134 292 2118 106 Data Communications Bureau
9443 253 45 67 Primus Telecommunications
4766 248 1506 155 Korea Internet Exchange for "
4814 215 79 14 China Telecom (Group) - Beiji
9583 180 32 5 Satyam Infoway Ltd.,
17676 160 2482 27 XTAGE CORPORATION
9768 143 384 73 Korea Telecom
7657 129 22 87 The Internet Group Limited
7539 125 184 124 TANet2, sponsored by NSC, TAI
9800 125 191 18 CHINA UNICOM
4780 123 186 39 Digital United Inc.
4713 115 1009 106 NTT Communications Corporatio
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 932 2442 773 UUNET Technologies, Inc.
5515 649 785 188 Sonera Finland Autonomous Sys
3301 396 924 346 TeliaNet Sweden
3352 277 535 29 Ibernet, Internet Access Netw
3215 269 629 168 France Telecom / &Equant
3320 258 1960 197 Deutsche Telekom AG
680 233 2149 230 DFN-IP service G-WiN
1257 206 430 203 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 141 23 137 Romania Data Systems S.A.
3303 137 547 136 Swisscom Ltd
2856 128 787 118 BTnet UK Regional network
12302 122 17 34 MobiFon S.A.
3269 113 690 68 TELECOM ITALIA
3246 112 317 107 Song Networks / Clinet
5511 109 192 87 France Telecom
3233 104 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 1836 9224 1381 UUNET Technologies, Inc.
7018 1295 7397 940 AT&T
3908 926 1643 501 Supernet, Inc.
1239 817 3257 640 Sprint
852 758 1175 452 Telus Advanced Communications
1 686 8057 435 GENUITY
7843 647 360 238 Adelphia Corp.
4323 626 438 257 Time Warner Communications, I
7132 582 659 133 Southwestern Bell Internet Se
7046 556 888 353 UUNET Technologies, Inc.
209 537 2010 350 Qwest
690 515 74 327 Merit Network
7066 483 203 253 Virginia Polytechnic Institut
7029 463 165 56 Alltel Information Services,
3549 440 839 317 Global Crossing
2914 407 2100 384 Verio, Inc.
2149 393 177 293 Performance Systems, Inc.
15290 379 297 194 AT&T Canada IES
6197 371 547 36 BellSouth Network Solutions,
6347 343 370 77 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 557 538 China Education and Research
5515 649 461 Sonera Finland Autonomous Sys
7132 582 449 Southwestern Bell Internet Se
3908 926 425 Supernet, Inc.
7843 647 409 Adelphia Corp.
7029 463 407 Alltel Information Services,
4323 626 369 Time Warner Communications, I
1221 1256 359 Telstra Pty Ltd
7018 1295 355 AT&T
6197 371 335 BellSouth Network Solutions,
852 758 306 Telus Advanced Communications
11371 292 286 Rhythms NetConnections
4151 288 272 USDA
6347 343 266 SAVVIS Communications Corpora
4355 308 256 EarthLink, Inc.
1 686 251 GENUITY
3352 277 248 Ibernet, Internet Access Netw
7066 483 230 Virginia Polytechnic Institut
18566 229 225 Covad Communications
4755 295 218 Videsh Sanchar Nigam Ltd. Aut
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
55000 RESERVED 81.5.64.0/20 5467 MIPT-NET
65501 PRIVATE 200.73.24.0/24 18747 IFX Communication Ve
65501 PRIVATE 200.73.25.0/24 18747 IFX Communication Ve
65501 PRIVATE 200.73.26.0/24 18747 IFX Communication Ve
65501 PRIVATE 200.73.27.0/24 18747 IFX Communication Ve
65003 PRIVATE 202.92.84.0/24 9837 Powertel Ltd
65003 PRIVATE 202.92.84.0/22 9837 Powertel Ltd
65003 PRIVATE 202.92.85.0/24 9837 Powertel Ltd
65003 PRIVATE 202.92.119.0/24 9837 Powertel Ltd
65003 PRIVATE 203.56.32.0/24 9837 Powertel Ltd
65003 PRIVATE 203.56.33.0/24 9837 Powertel Ltd
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
192.83.69.0/24 5515 Sonera Finland Autonomous Sys
192.83.72.0/21 5515 Sonera Finland Autonomous Sys
192.83.80.0/20 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
192.153.136.0/21 568 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 /8:18 /9:6 /10:7 /11:12 /12:36
/13:87 /14:235 /15:415 /16:7264 /17:1455 /18:2654
/19:7683 /20:7408 /21:5210 /22:7948 /23:9716 /24:63411
/25:197 /26:175 /27:84 /28:68 /29:47 /30:74
/31:0 /32:28
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 575 932 UUNET Technologies, Inc.
3908 515 926 Supernet, Inc.
701 508 1836 UUNET Technologies, Inc.
690 457 515 Merit Network
7843 453 647 Adelphia Corp.
5515 407 649 Sonera Finland Autonomous Sys
7066 387 483 Virginia Polytechnic Institut
7029 366 463 Alltel Information Services,
7018 351 1295 AT&T
6197 256 371 BellSouth Network Solutions,
11371 245 292 Rhythms NetConnections
6198 238 310 BellSouth Network Solutions,
3301 234 396 TeliaNet Sweden
18566 225 229 Covad Communications
1239 213 817 Sprint
209 210 537 Qwest
7046 210 556 UUNET Technologies, Inc.
1580 202 215 HQ, 5th Signal Command
3215 202 269 France Telecom / &Equant
3352 201 277 Ibernet, Internet Access Netw
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:502 13:10 15:2 17:6 20:3
24:753 25:1 32:41 38:9 40:6 44:1
57:13 61:284 62:222 63:1882 64:1267 65:1387
66:990 67:91 68:64 80:249 81:34 128:63
129:133 130:22 131:95 132:11 133:2 134:125
135:8 136:244 137:95 138:153 139:70 140:164
141:124 142:78 143:42 144:151 145:14 146:186
147:136 148:242 149:84 150:41 151:67 152:264
153:34 154:14 155:113 156:69 157:127 158:71
159:135 160:18 161:70 162:214 163:95 164:263
165:133 166:222 167:174 168:291 169:60 170:243
171:3 192:5522 193:2421 194:2169 195:911 196:410
198:3624 199:3199 200:2613 202:3298 203:4715 204:3268
205:2177 206:2683 207:2524 208:2627 209:2660 210:601
211:231 212:918 213:680 214:9 215:19 216:2849
217:472 218:28
End of report
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