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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 03 Jan, 2002
Analysis Summary
----------------
BGP routing table entries examined: 106702
Prefixes after maximum aggregation: 71487
Unique aggregates announced to Internet: 52017
Total ASes present in the Internet Routing Table: 12275
Origin-only ASes present in the Internet Routing Table: 10675
Origin ASes announcing only one prefix: 4620
Transit ASes present in the Internet Routing Table: 1600
Transit-only ASes present in the Internet Routing Table: 51
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: 9
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: 1163587592
Equivalent to 69 /8s, 90 /16s and 240 /24s
Percentage of available address space announced: 31.4
Percentage of allocated address space announced: 59.4
Percentage of available address space allocated: 52.8
Total number of prefixes smaller than registry allocations: 71549
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 16527
Total APNIC prefixes after maximum aggregation: 10375
Prefixes being announced from the APNIC address blocks: 15154
Unique aggregates announced from the APNIC address blocks: 9757
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: 239
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 78238912
Equivalent to 4 /8s, 169 /16s and 212 /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: 72347
Total ARIN prefixes after maximum aggregation: 47226
Prefixes being announced from the ARIN address blocks: 52055
Unique aggregates announced from the ARIN address blocks: 16956
ARIN Region origin ASes present in the Internet Routing Table: 7282
ARIN Region origin ASes announcing only one prefix: 2264
ARIN Region transit ASes present in the Internet Routing Table: 725
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 181564360
Equivalent to 10 /8s, 210 /16s and 115 /24s
Percentage of available ARIN address space announced: 67.6
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
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: 17821
Total RIPE prefixes after maximum aggregation: 13886
Prefixes being announced from the RIPE address blocks: 14533
Unique aggregates announced from the RIPE address blocks: 9711
RIPE Region origin ASes present in the Internet Routing Table: 3528
RIPE Region origin ASes announcing only one prefix: 1897
RIPE Region transit ASes present in the Internet Routing Table: 626
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 105338624
Equivalent to 6 /8s, 71 /16s and 87 /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 1348 1259 990 Telstra Pty Ltd
703 402 346 309 UUNET Technologies, Inc.
2764 400 378 374 connect.com.au pty ltd
2907 390 1891 360 SINET Japan
7474 311 285 202 Optus Communications Pty Ltd
4755 297 115 91 Videsh Sanchar Nigam Ltd. Aut
4134 268 1874 98 Data Communications Bureau
4766 186 1395 136 Korea Internet Exchange for "
1659 175 924 34 Taiwan Academic Network (TANe
9443 173 45 69 Primus Telecommunications
17557 173 13 87 Pakistan Telecom
9583 154 32 3 Satyam Infoway Ltd.,
4740 148 34 122 OzEmail ISP
4812 143 288 36 China Telecom (Group) - Shang
9768 143 381 87 Korea Telecom
7657 126 22 85 The Internet Group Limited
17676 121 1920 7 XTAGE CORPORATION
4780 119 186 42 Digital United Inc.
4713 115 894 102 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 1088 2669 857 UUNET Technologies, Inc.
3301 401 925 353 TeliaNet Sweden
1257 253 489 250 SWIPnet Swedish IP Network
680 233 2149 231 DFN-IP service G-WiN
3215 233 562 152 France Telecom / &Equant
5515 216 705 176 Sonera Finland Autonomous Sys
3320 197 1962 166 Deutsche Telekom AG
786 182 1874 182 The JANET IP Service
719 164 289 118 LANLINK autonomous system
5400 146 59 83 Concert European Core Network
8708 145 20 139 Romania Data Systems S.A.
5549 140 78 64 Nextra Deutschland GmbH + Co.
2856 136 777 125 BTnet UK Regional network
3303 134 575 124 Swisscom Ltd
3269 114 661 69 TELECOM ITALIA
12302 111 7 35 MobiFon S.A.
517 109 230 107 KPNQwest Germany GmbH
8297 108 31 62 Teleglobe Autonomous System i
1290 96 396 71 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 8787 1518 UUNET Technologies, Inc.
7018 1120 7404 875 AT&T
3967 909 360 433 Exodus Communication
1 873 8424 648 BBN Planet
1239 776 3218 605 Sprint
3908 774 1639 479 Supernet, Inc.
8010 714 62 11 PublicNet Communications, Inc
7046 684 822 436 UUNET Technologies, Inc.
209 624 1861 295 Qwest
4323 585 364 201 Time Warner Communications, I
852 563 978 382 Telus Advanced Communications
690 533 76 318 Merit Network
705 476 349 297 UUNET Technologies, Inc.
2914 460 2226 431 Verio, Inc.
3549 404 836 201 Global Crossing
7132 402 470 168 Southwestern Bell Internet Se
2149 396 230 333 Performance Systems, Inc.
3561 379 2253 329 Cable & Wireless USA
577 353 588 221 Bell Advanced Communications
3741 350 730 239 The Internet Solution
Global Per AS Maximum Aggr summary
----------------------------------
ASN Net Savings Description
8010 703 PublicNet Communications, Inc
3967 476 Exodus Communication
4323 384 Time Warner Communications, I
1221 358 Telstra Pty Ltd
209 329 Qwest
4151 324 USDA
3908 295 Supernet, Inc.
11371 271 Rhythms NetConnections
7046 248 UUNET Technologies, Inc.
7018 245 AT&T
6347 238 SAVVIS Communications Corpora
7132 234 Southwestern Bell Internet Se
702 231 UUNET Technologies, Inc.
1 225 BBN Planet
690 215 Merit Network
4755 206 Videsh Sanchar Nigam Ltd. Aut
3549 203 Global Crossing
4355 198 EarthLink, Inc.
6517 196 Yipes Communications, Inc.
7843 189 Adelphia Corp.
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
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
65021 PRIVATE 203.75.232.0/27 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 /8:19 /9:5 /10:7 /11:11 /12:37
/13:91 /14:229 /15:392 /16:7059 /17:1363 /18:2467
/19:7176 /20:6282 /21:4738 /22:7153 /23:8880 /24:59906
/25:235 /26:239 /27:150 /28:98 /29:80 /30:71
/31:0 /32:14
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1365 2137 UUNET Technologies, Inc.
1221 1202 1348 Telstra Pty Ltd
3967 728 909 Exodus Communication
702 706 1088 UUNET Technologies, Inc.
8010 698 714 PublicNet Communications, Inc
7018 583 1120 AT&T
3908 532 774 Supernet, Inc.
690 530 533 Merit Network
7046 519 684 UUNET Technologies, Inc.
4323 495 585 Time Warner Communications, I
209 451 624 Qwest
1 446 873 BBN Planet
1239 445 776 Sprint
705 358 476 UUNET Technologies, Inc.
2764 354 400 connect.com.au pty ltd
852 352 563 Telus Advanced Communications
703 327 402 UUNET Technologies, Inc.
2149 299 396 Performance Systems, Inc.
4151 294 340 USDA
7474 276 311 Optus Communications Pty Ltd
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:446 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 61:206
62:154 63:1910 64:1480 65:1040 66:743 67:20
68:7 80:129 128:62 129:109 130:24 131:41
132:14 133:2 134:110 135:10 136:47 137:108
138:62 139:30 140:103 141:57 142:53 143:44
144:57 145:12 146:200 147:94 148:154 149:88
150:39 151:37 152:378 153:34 154:6 155:81
156:82 157:121 158:71 159:78 160:26 161:54
162:85 163:122 164:119 165:101 166:204 167:160
168:114 169:48 170:299 171:2 191:1 192:5291
193:2055 194:2064 195:834 196:429 198:3711 199:3289
200:2421 201:1 202:2831 203:4483 204:3263 205:2178
206:2543 207:2644 208:2620 209:2969 210:533 211:151
212:879 213:552 214:9 215:15 216:2945 217:399
218:12
End of report
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