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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 Wed 09 Jan, 2002
Analysis Summary
----------------
BGP routing table entries examined: 107084
Prefixes after maximum aggregation: 71340
Unique aggregates announced to Internet: 52084
Total ASes present in the Internet Routing Table: 12278
Origin-only ASes present in the Internet Routing Table: 10672
Origin ASes announcing only one prefix: 4615
Transit ASes present in the Internet Routing Table: 1606
Transit-only ASes present in the Internet Routing Table: 47
Average AS path length visible in the Internet Routing Table: 5.3
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: 15
Number of addresses announced to Internet: 1160095200
Equivalent to 69 /8s, 37 /16s and 165 /24s
Percentage of available address space announced: 31.3
Percentage of allocated address space announced: 59.2
Percentage of available address space allocated: 52.8
Total number of prefixes smaller than registry allocations: 71606
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 16893
Total APNIC prefixes after maximum aggregation: 10383
Prefixes being announced from the APNIC address blocks: 15525
Unique aggregates announced from the APNIC address blocks: 9743
APNIC Region origin ASes present in the Internet Routing Table: 1414
APNIC Region origin ASes announcing only one prefix: 459
APNIC Region transit ASes present in the Internet Routing Table: 246
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 78330432
Equivalent to 4 /8s, 171 /16s and 58 /24s
Percentage of available APNIC address space announced: 57.9
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: 72312
Total ARIN prefixes after maximum aggregation: 47050
Prefixes being announced from the ARIN address blocks: 51941
Unique aggregates announced from the ARIN address blocks: 17049
ARIN Region origin ASes present in the Internet Routing Table: 7280
ARIN Region origin ASes announcing only one prefix: 2252
ARIN Region transit ASes present in the Internet Routing Table: 721
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 182442784
Equivalent to 10 /8s, 223 /16s and 219 /24s
Percentage of available ARIN address space announced: 68.0
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
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: 17868
Total RIPE prefixes after maximum aggregation: 13907
Prefixes being announced from the RIPE address blocks: 14595
Unique aggregates announced from the RIPE address blocks: 9711
RIPE Region origin ASes present in the Internet Routing Table: 3538
RIPE Region origin ASes announcing only one prefix: 1904
RIPE Region transit ASes present in the Internet Routing Table: 630
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 105494784
Equivalent to 6 /8s, 73 /16s and 185 /24s
Percentage of available RIPE address space announced: 69.9
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
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 1341 1259 989 Telstra Pty Ltd
4538 420 1082 14 China Education and Research
2764 401 378 375 connect.com.au pty ltd
703 396 339 304 UUNET Technologies, Inc.
2907 392 1907 362 SINET Japan
4755 328 116 92 Videsh Sanchar Nigam Ltd. Aut
7474 309 285 202 Optus Communications Pty Ltd
4134 267 1874 97 Data Communications Bureau
4766 193 1396 143 Korea Internet Exchange for "
17557 175 14 86 Pakistan Telecom
9443 172 45 68 Primus Telecommunications
1659 165 924 34 Taiwan Academic Network (TANe
9583 156 32 5 Satyam Infoway Ltd.,
4740 149 34 123 OzEmail ISP
9768 145 381 88 Korea Telecom
7657 123 21 84 The Internet Group Limited
17676 121 1920 7 XTAGE CORPORATION
4780 116 186 40 Digital United Inc.
4713 115 894 102 NTT Communications Corporatio
9800 111 194 20 CHINA UNICOM
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1090 2653 859 UUNET Technologies, Inc.
3301 401 925 353 TeliaNet Sweden
1257 253 489 247 SWIPnet Swedish IP Network
680 233 2149 231 DFN-IP service G-WiN
3215 232 562 151 France Telecom / &Equant
5515 216 705 176 Sonera Finland Autonomous Sys
3320 201 1961 169 Deutsche Telekom AG
786 182 1874 182 The JANET IP Service
719 164 289 118 LANLINK autonomous system
5400 148 60 85 Concert European Core Network
8708 147 20 138 Romania Data Systems S.A.
5549 143 78 65 Nextra Deutschland GmbH + Co.
2856 136 777 125 BTnet UK Regional network
3303 127 591 125 Swisscom Ltd
3269 115 663 70 TELECOM ITALIA
12302 112 7 36 MobiFon S.A.
8297 109 37 61 Teleglobe Autonomous System i
517 108 230 106 KPNQwest Germany GmbH
1290 97 412 72 PSINet UK Ltd.
1267 92 1471 42 Infostrada S.p.A.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2133 8808 1522 UUNET Technologies, Inc.
7018 1138 7462 887 AT&T
1 878 8409 648 BBN Planet
3967 804 359 369 Exodus Communication
3908 797 1638 474 Supernet, Inc.
1239 783 3172 608 Sprint
8010 714 62 11 PublicNet Communications, Inc
7046 687 822 440 UUNET Technologies, Inc.
4323 586 380 202 Time Warner Communications, I
852 579 978 383 Telus Advanced Communications
690 534 77 314 Merit Network
209 508 1859 294 Qwest
705 476 349 297 UUNET Technologies, Inc.
2914 461 2211 432 Verio, Inc.
7132 402 470 168 Southwestern Bell Internet Se
3549 398 831 197 Global Crossing
2149 396 230 332 Performance Systems, Inc.
3561 371 2204 323 Cable & Wireless USA
4151 363 704 16 USDA
577 352 588 220 Bell Advanced Communications
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
8010 714 703 PublicNet Communications, Inc
3967 804 435 Exodus Communication
4538 420 406 China Education and Research
4323 586 384 Time Warner Communications, I
1221 1341 352 Telstra Pty Ltd
4151 363 347 USDA
3908 797 323 Supernet, Inc.
11371 278 271 Rhythms NetConnections
7018 1138 251 AT&T
7046 687 247 UUNET Technologies, Inc.
6347 319 238 SAVVIS Communications Corpora
4755 328 236 Videsh Sanchar Nigam Ltd. Aut
7132 402 234 Southwestern Bell Internet Se
702 1090 231 UUNET Technologies, Inc.
1 878 230 BBN Planet
7029 244 223 Alltel Information Services,
690 534 220 Merit Network
209 508 214 Qwest
3549 398 201 Global Crossing
4355 229 199 EarthLink, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65021 PRIVATE 203.75.135.0/27 3462 Data Communication B
65022 PRIVATE 203.75.135.32/27 3462 Data Communication B
65021 PRIVATE 203.75.210.129/32 3462 Data Communication B
65021 PRIVATE 203.75.210.130/32 3462 Data Communication B
65021 PRIVATE 203.75.210.131/32 3462 Data Communication B
65021 PRIVATE 203.75.210.132/32 3462 Data Communication B
65022 PRIVATE 203.75.210.137/32 3462 Data Communication B
65022 PRIVATE 203.75.210.138/32 3462 Data Communication B
65021 PRIVATE 203.75.232.0/27 3462 Data Communication B
65022 PRIVATE 203.75.232.32/27 3462 Data Communication B
65021 PRIVATE 203.75.232.160/27 3462 Data Communication B
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
134.137.0.0/16 400 Headquarters Standard Systems
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
138.94.0.0/16 1 BBN Planet
144.7.0.0/16 701 UUNET Technologies, Inc.
153.34.0.0/15 701 UUNET Technologies, Inc.
153.36.0.0/14 701 UUNET Technologies, Inc.
154.150.0.0/16 6494 IDCI
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
164.235.0.0/16 6025 US DOD NIC Unregistered
191.9.200.0/24 1290 PSINet UK Ltd.
201.115.100.0/24 7018 AT&T
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 /12:38
/13:92 /14:230 /15:393 /16:7124 /17:1383 /18:2464
/19:7205 /20:6494 /21:4803 /22:7174 /23:8899 /24:59936
/25:211 /26:219 /27:130 /28:81 /29:71 /30:66
/31:0 /32:28
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1364 2133 UUNET Technologies, Inc.
1221 1195 1341 Telstra Pty Ltd
702 707 1090 UUNET Technologies, Inc.
8010 698 714 PublicNet Communications, Inc
3967 619 804 Exodus Communication
7018 596 1138 AT&T
3908 555 797 Supernet, Inc.
690 531 534 Merit Network
7046 521 687 UUNET Technologies, Inc.
4323 496 586 Time Warner Communications, I
1239 457 783 Sprint
1 452 878 BBN Planet
852 368 579 Telus Advanced Communications
705 359 476 UUNET Technologies, Inc.
2764 355 401 connect.com.au pty ltd
209 335 508 Qwest
703 323 396 UUNET Technologies, Inc.
4151 316 363 USDA
2149 298 396 Performance Systems, Inc.
4755 283 328 Videsh Sanchar Nigam Ltd. Aut
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:443 13:10 15:2 17:5
20:1 24:776 25:1 32:73 38:13 40:4
43:1 44:2 52:1 57:14 61:217 62:169
63:1901 64:1484 65:973 66:747 67:22 68:15
80:125 128:64 129:117 130:23 131:41 132:14
133:2 134:107 135:10 136:46 137:102 138:62
139:30 140:100 141:57 142:53 143:43 144:57
145:12 146:201 147:94 148:158 149:88 150:38
151:43 152:378 153:34 154:3 155:82 156:83
157:119 158:72 159:77 160:26 161:54 162:119
163:120 164:118 165:102 166:217 167:160 168:113
169:47 170:280 171:2 191:1 192:5327 193:2059
194:2054 195:860 196:430 198:3678 199:3309 200:2396
201:1 202:2824 203:4481 204:3251 205:2164 206:2583
207:2680 208:2603 209:2975 210:523 211:152 212:880
213:539 214:9 215:17 216:2946 217:411 218:12
End of report
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