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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 Thu 27 Dec, 2001
Analysis Summary
----------------
BGP routing table entries examined: 107221
Prefixes after maximum aggregation: 71577
Unique aggregates announced to Internet: 52032
Total ASes present in the Internet Routing Table: 12269
Origin-only ASes present in the Internet Routing Table: 10661
Origin ASes announcing only one prefix: 4622
Transit ASes present in the Internet Routing Table: 1608
Transit-only ASes present in the Internet Routing Table: 55
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: 14
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: 1145703096
Equivalent to 68 /8s, 74 /16s and 10 /24s
Percentage of available address space announced: 30.9
Percentage of allocated address space announced: 58.5
Percentage of available address space allocated: 52.8
Total number of prefixes smaller than registry allocations: 72088
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 16669
Total APNIC prefixes after maximum aggregation: 10407
Prefixes being announced from the APNIC address blocks: 15238
Unique aggregates announced from the APNIC address blocks: 9774
APNIC Region origin ASes present in the Internet Routing Table: 1424
APNIC Region origin ASes announcing only one prefix: 464
APNIC Region transit ASes present in the Internet Routing Table: 238
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 77958000
Equivalent to 4 /8s, 165 /16s and 139 /24s
Percentage of available APNIC address space announced: 57.6
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 220/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 72672
Total ARIN prefixes after maximum aggregation: 47272
Prefixes being announced from the ARIN address blocks: 52445
Unique aggregates announced from the ARIN address blocks: 16974
ARIN Region origin ASes present in the Internet Routing Table: 7261
ARIN Region origin ASes announcing only one prefix: 2251
ARIN Region transit ASes present in the Internet Routing Table: 726
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 180973000
Equivalent to 10 /8s, 201 /16s and 109 /24s
Percentage of available ARIN address space announced: 67.4
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: 13898
Prefixes being announced from the RIPE address blocks: 14560
Unique aggregates announced from the RIPE address blocks: 9693
RIPE Region origin ASes present in the Internet Routing Table: 3530
RIPE Region origin ASes announcing only one prefix: 1907
RIPE Region transit ASes present in the Internet Routing Table: 627
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 105090048
Equivalent to 6 /8s, 67 /16s and 140 /24s
Percentage of available RIPE address space announced: 69.6
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
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 1486 1260 1030 Telstra Pty Ltd
2764 401 378 375 connect.com.au pty ltd
703 399 348 307 UUNET Technologies, Inc.
2907 371 1848 341 SINET Japan
7474 310 285 201 Optus Communications Pty Ltd
4755 297 117 82 Videsh Sanchar Nigam Ltd. Aut
4134 268 1874 98 Data Communications Bureau
4766 185 1395 135 Korea Internet Exchange for "
1659 175 924 34 Taiwan Academic Network (TANe
17557 174 13 83 Pakistan Telecom
9443 171 45 68 Primus Telecommunications
9583 151 32 3 Satyam Infoway Ltd.,
4740 150 34 124 OzEmail ISP
9768 141 381 87 Korea Telecom
4812 137 192 34 China Telecom (Group) - Shang
17676 121 1920 7 XTAGE CORPORATION
4713 120 942 107 NTT Communications Corporatio
7657 118 21 77 The Internet Group Limited
4780 117 186 42 Digital United Inc.
9800 112 194 21 CHINA UNICOM
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1091 2673 860 UUNET Technologies, Inc.
3301 419 925 354 TeliaNet Sweden
1257 252 473 249 SWIPnet Swedish IP Network
3215 237 562 153 France Telecom / &Equant
680 233 2149 231 DFN-IP service G-WiN
5515 217 721 177 Sonera Finland Autonomous Sys
3320 196 1960 165 Deutsche Telekom AG
786 178 1857 178 The JANET IP Service
719 164 289 118 LANLINK autonomous system
8708 149 20 141 Romania Data Systems S.A.
5400 147 59 84 Concert European Core Network
5549 141 78 62 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 112 7 36 MobiFon S.A.
517 110 232 108 KPNQwest Germany GmbH
8297 108 31 62 Teleglobe Autonomous System i
5511 98 192 79 France Telecom
1290 96 396 71 PSINet UK Ltd.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2155 8829 1524 UUNET Technologies, Inc.
7018 1107 7401 865 AT&T
3967 935 363 461 Exodus Communication
705 908 376 399 UUNET Technologies, Inc.
1 875 8410 650 BBN Planet
1239 785 3169 608 Sprint
3908 764 1639 479 Supernet, Inc.
8010 715 62 11 PublicNet Communications, Inc
7046 700 823 451 UUNET Technologies, Inc.
209 619 1863 298 Qwest
4323 584 364 201 Time Warner Communications, I
852 578 978 382 Telus Advanced Communications
690 530 91 314 Merit Network
2914 459 2226 430 Verio, Inc.
7132 404 470 168 Southwestern Bell Internet Se
2149 403 230 340 Performance Systems, Inc.
3549 400 828 199 Global Crossing
3561 383 2253 330 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 704 PublicNet Communications, Inc
705 509 UUNET Technologies, Inc.
3967 474 Exodus Communication
1221 456 Telstra Pty Ltd
4323 383 Time Warner Communications, I
4151 325 USDA
209 321 Qwest
3908 285 Supernet, Inc.
11371 271 Rhythms NetConnections
7046 249 UUNET Technologies, Inc.
7018 242 AT&T
6347 238 SAVVIS Communications Corpora
7132 236 Southwestern Bell Internet Se
702 231 UUNET Technologies, Inc.
1 225 BBN Planet
690 216 Merit Network
4755 215 Videsh Sanchar Nigam Ltd. Aut
3549 201 Global Crossing
4355 198 EarthLink, Inc.
852 196 Telus Advanced Communications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65500 PRIVATE 62.40.11.0/24 8469 PIRONET NDH AG
2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp.
65500 PRIVATE 195.227.39.0/24 8469 PIRONET NDH AG
65500 PRIVATE 195.227.73.0/24 8469 PIRONET NDH AG
65500 PRIVATE 195.227.79.0/24 8469 PIRONET NDH AG
65500 PRIVATE 195.227.88.0/24 8469 PIRONET NDH AG
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 /8:18 /9:5 /10:7 /11:11 /12:37
/13:91 /14:229 /15:390 /16:7058 /17:1364 /18:2464
/19:7182 /20:6255 /21:4709 /22:7137 /23:8864 /24:60328
/25:274 /26:270 /27:186 /28:145 /29:101 /30:77
/31:0 /32:19
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1380 2155 UUNET Technologies, Inc.
1221 1340 1486 Telstra Pty Ltd
705 792 908 UUNET Technologies, Inc.
3967 753 935 Exodus Communication
702 707 1091 UUNET Technologies, Inc.
8010 699 715 PublicNet Communications, Inc
7018 574 1107 AT&T
7046 535 700 UUNET Technologies, Inc.
3908 527 764 Supernet, Inc.
690 526 530 Merit Network
4323 494 584 Time Warner Communications, I
1239 451 785 Sprint
1 449 875 BBN Planet
209 446 619 Qwest
852 367 578 Telus Advanced Communications
2764 355 401 connect.com.au pty ltd
703 323 399 UUNET Technologies, Inc.
2149 305 403 Performance Systems, Inc.
4151 295 341 USDA
7474 275 310 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 24:807 25:1 32:73 38:14 40:4
43:1 44:2 52:1 53:2 57:13 61:172
62:155 63:2358 64:1490 65:1027 66:741 67:17
68:6 80:135 128:61 129:110 130:24 131:41
132:14 133:2 134:107 135:10 136:45 137:107
138:63 139:30 140:68 141:58 142:52 143:44
144:55 145:12 146:201 147:93 148:154 149:88
150:39 151:38 152:376 153:34 154:6 155:81
156:85 157:122 158:71 159:77 160:43 161:54
162:83 163:123 164:119 165:99 166:204 167:162
168:115 169:48 170:300 171:2 191:1 192:5288
193:2059 194:2063 195:848 196:429 198:3711 199:3310
200:2410 201:1 202:2811 203:4506 204:3269 205:2180
206:2538 207:2640 208:2615 209:2936 210:513 211:152
212:889 213:558 214:9 215:15 216:2961 217:398
218:11
End of report
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