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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 Mon 07 Jan, 2002
Analysis Summary
----------------
BGP routing table entries examined: 106691
Prefixes after maximum aggregation: 71424
Unique aggregates announced to Internet: 52063
Total ASes present in the Internet Routing Table: 12290
Origin-only ASes present in the Internet Routing Table: 10684
Origin ASes announcing only one prefix: 4630
Transit ASes present in the Internet Routing Table: 1606
Transit-only ASes present in the Internet Routing Table: 50
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: 13
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: 1159313160
Equivalent to 69 /8s, 25 /16s and 183 /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: 71486
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 16559
Total APNIC prefixes after maximum aggregation: 10370
Prefixes being announced from the APNIC address blocks: 15191
Unique aggregates announced from the APNIC address blocks: 9757
APNIC Region origin ASes present in the Internet Routing Table: 1417
APNIC Region origin ASes announcing only one prefix: 459
APNIC Region transit ASes present in the Internet Routing Table: 245
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 78136256
Equivalent to 4 /8s, 168 /16s and 67 /24s
Percentage of available APNIC address space announced: 57.8
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: 72241
Total ARIN prefixes after maximum aggregation: 47139
Prefixes being announced from the ARIN address blocks: 51950
Unique aggregates announced from the ARIN address blocks: 16974
ARIN Region origin ASes present in the Internet Routing Table: 7282
ARIN Region origin ASes announcing only one prefix: 2262
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: 182128072
Equivalent to 10 /8s, 219 /16s and 13 /24s
Percentage of available ARIN address space announced: 67.8
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: 17880
Total RIPE prefixes after maximum aggregation: 13915
Prefixes being announced from the RIPE address blocks: 14598
Unique aggregates announced from the RIPE address blocks: 9751
RIPE Region origin ASes present in the Internet Routing Table: 3542
RIPE Region origin ASes announcing only one prefix: 1909
RIPE Region transit ASes present in the Internet Routing Table: 632
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 105328640
Equivalent to 6 /8s, 71 /16s and 48 /24s
Percentage of available RIPE address space announced: 69.8
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
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 1342 1259 984 Telstra Pty Ltd
2764 401 378 375 connect.com.au pty ltd
703 400 345 307 UUNET Technologies, Inc.
2907 390 1891 360 SINET Japan
7474 310 285 202 Optus Communications Pty Ltd
4755 299 115 80 Videsh Sanchar Nigam Ltd. Aut
4134 268 1874 98 Data Communications Bureau
4766 193 1396 143 Korea Internet Exchange for "
17557 177 14 86 Pakistan Telecom
9443 173 45 69 Primus Telecommunications
1659 165 924 34 Taiwan Academic Network (TANe
9583 157 32 5 Satyam Infoway Ltd.,
4740 148 18 122 OzEmail ISP
9768 145 381 88 Korea Telecom
4812 143 288 36 China Telecom (Group) - Shang
7657 126 22 85 The Internet Group Limited
17676 121 1920 7 XTAGE CORPORATION
4780 117 186 40 Digital United Inc.
4713 116 910 103 NTT Communications Corporatio
9800 112 194 21 CHINA UNICOM
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1090 2653 857 UUNET Technologies, Inc.
3301 398 924 350 TeliaNet Sweden
1257 253 489 250 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 202 1961 170 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 146 20 138 Romania Data Systems S.A.
5549 141 78 63 Nextra Deutschland GmbH + Co.
2856 136 777 125 BTnet UK Regional network
3303 134 575 124 Swisscom Ltd
3269 115 663 70 TELECOM ITALIA
12302 111 7 35 MobiFon S.A.
517 108 230 106 KPNQwest Germany GmbH
8297 108 31 62 Teleglobe Autonomous System i
1290 97 412 72 PSINet UK Ltd.
5511 95 192 79 France Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2137 8789 1530 UUNET Technologies, Inc.
7018 1134 7428 882 AT&T
1 878 8409 648 BBN Planet
3967 831 359 381 Exodus Communication
3908 775 1638 475 Supernet, Inc.
1239 774 3181 601 Sprint
8010 714 62 11 PublicNet Communications, Inc
7046 685 822 439 UUNET Technologies, Inc.
4323 587 380 202 Time Warner Communications, I
852 580 978 384 Telus Advanced Communications
690 534 92 316 Merit Network
209 513 1861 296 Qwest
705 475 349 296 UUNET Technologies, Inc.
2914 459 2210 430 Verio, Inc.
7132 402 470 168 Southwestern Bell Internet Se
3549 401 835 200 Global Crossing
2149 396 230 332 Performance Systems, Inc.
3561 378 2253 328 Cable & Wireless USA
4151 363 704 16 USDA
577 352 588 220 Bell Advanced Communications
Global Per AS Maximum Aggr summary
----------------------------------
ASN Net Savings Description
8010 703 PublicNet Communications, Inc
3967 450 Exodus Communication
4323 385 Time Warner Communications, I
1221 358 Telstra Pty Ltd
4151 347 USDA
3908 300 Supernet, Inc.
11371 271 Rhythms NetConnections
7018 252 AT&T
7046 246 UUNET Technologies, Inc.
6347 238 SAVVIS Communications Corpora
7132 234 Southwestern Bell Internet Se
702 233 UUNET Technologies, Inc.
1 230 BBN Planet
4755 219 Videsh Sanchar Nigam Ltd. Aut
690 218 Merit Network
209 217 Qwest
3549 201 Global Crossing
4355 199 EarthLink, Inc.
852 196 Telus Advanced Communications
6517 196 Yipes Communications, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp.
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 /14:231 /15:392 /16:7055 /17:1367 /18:2471
/19:7190 /20:6307 /21:4737 /22:7136 /23:8852 /24:59942
/25:221 /26:222 /27:135 /28:87 /29:74 /30:71
/31:0 /32:28
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1364 2137 UUNET Technologies, Inc.
1221 1196 1342 Telstra Pty Ltd
702 708 1090 UUNET Technologies, Inc.
8010 698 714 PublicNet Communications, Inc
3967 648 831 Exodus Communication
7018 593 1134 AT&T
3908 533 775 Supernet, Inc.
690 530 534 Merit Network
7046 519 685 UUNET Technologies, Inc.
4323 496 587 Time Warner Communications, I
1 452 878 BBN Planet
1239 451 774 Sprint
852 369 580 Telus Advanced Communications
705 358 475 UUNET Technologies, Inc.
2764 355 401 connect.com.au pty ltd
209 339 513 Qwest
703 326 400 UUNET Technologies, Inc.
4151 316 363 USDA
2149 298 396 Performance Systems, Inc.
7474 275 310 Optus Communications Pty Ltd
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:444 13:10 15:2 17:5
20:1 24:775 25:1 32:73 38:13 40:4
43:1 44:2 52:1 53:2 57:13 61:209
62:162 63:1901 64:1481 65:969 66:757 67:21
68:13 80:144 128:62 129:111 130:24 131:41
132:14 133:2 134:107 135:10 136:46 137:102
138:62 139:30 140:101 141:57 142:53 143:43
144:57 145:12 146:200 147:94 148:158 149:88
150:39 151:37 152:379 153:34 154:6 155:82
156:82 157:121 158:71 159:78 160:26 161:54
162:85 163:120 164:119 165:103 166:204 167:160
168:114 169:47 170:280 171:2 191:1 192:5327
193:2054 194:2061 195:853 196:429 198:3681 199:3309
200:2391 201:1 202:2844 203:4486 204:3260 205:2181
206:2587 207:2655 208:2608 209:2972 210:537 211:155
212:881 213:552 214:9 215:17 216:2946 217:408
218:12
End of report
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