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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 01 Jan, 2002
Analysis Summary
----------------
BGP routing table entries examined: 106794
Prefixes after maximum aggregation: 71504
Unique aggregates announced to Internet: 52052
Total ASes present in the Internet Routing Table: 12273
Origin-only ASes present in the Internet Routing Table: 10667
Origin ASes announcing only one prefix: 4613
Transit ASes present in the Internet Routing Table: 1606
Transit-only ASes present in the Internet Routing Table: 54
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 22
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: 14
Number of addresses announced to Internet: 1146523400
Equivalent to 68 /8s, 86 /16s and 143 /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: 71623
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 16594
Total APNIC prefixes after maximum aggregation: 10393
Prefixes being announced from the APNIC address blocks: 15211
Unique aggregates announced from the APNIC address blocks: 9782
APNIC Region origin ASes present in the Internet Routing Table: 1415
APNIC Region origin ASes announcing only one prefix: 459
APNIC Region transit ASes present in the Internet Routing Table: 242
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 78217664
Equivalent to 4 /8s, 169 /16s and 129 /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: 72363
Total ARIN prefixes after maximum aggregation: 47222
Prefixes being announced from the ARIN address blocks: 52062
Unique aggregates announced from the ARIN address blocks: 16964
ARIN Region origin ASes present in the Internet Routing Table: 7275
ARIN Region origin ASes announcing only one prefix: 2256
ARIN Region transit ASes present in the Internet Routing Table: 729
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 181397960
Equivalent to 10 /8s, 207 /16s and 233 /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: 17830
Total RIPE prefixes after maximum aggregation: 13889
Prefixes being announced from the RIPE address blocks: 14547
Unique aggregates announced from the RIPE address blocks: 9712
RIPE Region origin ASes present in the Internet Routing Table: 3529
RIPE Region origin ASes announcing only one prefix: 1898
RIPE Region transit ASes present in the Internet Routing Table: 623
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 105218816
Equivalent to 6 /8s, 69 /16s and 131 /24s
Percentage of available RIPE address space announced: 69.7
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 1350 1259 996 Telstra Pty Ltd
703 401 344 308 UUNET Technologies, Inc.
2764 401 378 375 connect.com.au pty ltd
2907 395 1891 361 SINET Japan
7474 311 285 202 Optus Communications Pty Ltd
4755 295 115 87 Videsh Sanchar Nigam Ltd. Aut
4134 266 1874 97 Data Communications Bureau
4766 185 1395 135 Korea Internet Exchange for "
1659 175 924 34 Taiwan Academic Network (TANe
9443 173 45 69 Primus Telecommunications
17557 173 13 85 Pakistan Telecom
9583 151 32 3 Satyam Infoway Ltd.,
4740 148 34 122 OzEmail ISP
9768 143 381 87 Korea Telecom
4812 141 288 35 China Telecom (Group) - Shang
7657 125 22 84 The Internet Group Limited
17676 121 1920 7 XTAGE CORPORATION
4780 118 186 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 1089 2669 858 UUNET Technologies, Inc.
3301 401 925 353 TeliaNet Sweden
1257 252 473 249 SWIPnet Swedish IP Network
3215 236 562 152 France Telecom / &Equant
680 233 2149 231 DFN-IP service G-WiN
5515 217 721 177 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
8708 149 20 140 Romania Data Systems S.A.
5400 146 59 83 Concert European Core Network
5549 140 78 64 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.
517 109 230 107 KPNQwest Germany GmbH
8297 108 31 62 Teleglobe Autonomous System i
1290 95 396 70 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 2143 8777 1519 UUNET Technologies, Inc.
7018 1120 7404 875 AT&T
3967 920 360 442 Exodus Communication
1 872 8424 647 BBN Planet
3908 776 1638 478 Supernet, Inc.
1239 774 3154 603 Sprint
8010 715 62 11 PublicNet Communications, Inc
7046 696 822 442 UUNET Technologies, Inc.
209 622 1861 296 Qwest
4323 585 364 201 Time Warner Communications, I
852 578 978 382 Telus Advanced Communications
690 534 92 316 Merit Network
705 474 349 295 UUNET Technologies, Inc.
2914 458 2226 429 Verio, Inc.
3549 404 836 201 Global Crossing
7132 402 470 168 Southwestern Bell Internet Se
2149 398 230 335 Performance Systems, Inc.
3561 380 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
3967 478 Exodus Communication
4323 384 Time Warner Communications, I
1221 354 Telstra Pty Ltd
209 326 Qwest
4151 324 USDA
3908 298 Supernet, Inc.
11371 271 Rhythms NetConnections
7046 254 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
690 218 Merit Network
4755 208 Videsh Sanchar Nigam Ltd. Aut
3549 203 Global Crossing
4355 198 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
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
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 /15:391 /16:7064 /17:1364 /18:2468
/19:7181 /20:6290 /21:4726 /22:7152 /23:8890 /24:59947
/25:239 /26:239 /27:156 /28:107 /29:85 /30:78
/31:0 /32:19
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1370 2143 UUNET Technologies, Inc.
1221 1204 1350 Telstra Pty Ltd
3967 739 920 Exodus Communication
702 706 1089 UUNET Technologies, Inc.
8010 699 715 PublicNet Communications, Inc
7018 583 1120 AT&T
3908 534 776 Supernet, Inc.
690 530 534 Merit Network
7046 530 696 UUNET Technologies, Inc.
4323 495 585 Time Warner Communications, I
209 449 622 Qwest
1 446 872 BBN Planet
1239 444 774 Sprint
852 367 578 Telus Advanced Communications
705 358 474 UUNET Technologies, Inc.
2764 355 401 connect.com.au pty ltd
703 327 401 UUNET Technologies, Inc.
2149 300 398 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 12:443 13:10 15:2 17:5
20:1 24:792 25:1 32:73 38:13 40:4
43:1 44:2 52:1 53:2 57:13 61:203
62:152 63:1910 64:1489 65:1034 66:740 67:20
68:7 80:126 128:62 129:109 130:24 131:41
132:14 133:2 134:110 135:10 136:47 137:108
138:62 139:30 140:103 141:57 142:53 143:44
144:55 145:12 146:200 147:94 148:154 149:88
150:39 151:38 152:378 153:34 154:6 155:81
156:83 157:120 158:71 159:77 160:26 161:54
162:85 163:121 164:119 165:100 166:204 167:160
168:109 169:48 170:299 171:2 191:1 192:5289
193:2066 194:2067 195:835 196:430 198:3713 199:3299
200:2402 201:1 202:2843 203:4502 204:3264 205:2180
206:2545 207:2643 208:2616 209:2969 210:531 211:154
212:878 213:554 214:9 215:15 216:2949 217:399
218:12
End of report
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