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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 02 Jan, 2002
Analysis Summary
----------------
BGP routing table entries examined: 106635
Prefixes after maximum aggregation: 71501
Unique aggregates announced to Internet: 52057
Total ASes present in the Internet Routing Table: 12267
Origin-only ASes present in the Internet Routing Table: 10666
Origin ASes announcing only one prefix: 4612
Transit ASes present in the Internet Routing Table: 1601
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: 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: 15
Number of addresses announced to Internet: 1163309832
Equivalent to 69 /8s, 86 /16s and 179 /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: 71490
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 16481
Total APNIC prefixes after maximum aggregation: 10407
Prefixes being announced from the APNIC address blocks: 15144
Unique aggregates announced from the APNIC address blocks: 9790
APNIC Region origin ASes present in the Internet Routing Table: 1416
APNIC Region origin ASes announcing only one prefix: 458
APNIC Region transit ASes present in the Internet Routing Table: 240
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 78261440
Equivalent to 4 /8s, 170 /16s and 44 /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: 72349
Total ARIN prefixes after maximum aggregation: 47228
Prefixes being announced from the ARIN address blocks: 52048
Unique aggregates announced from the ARIN address blocks: 16962
ARIN Region origin ASes present in the Internet Routing Table: 7276
ARIN Region origin ASes announcing only one prefix: 2259
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: 181385928
Equivalent to 10 /8s, 207 /16s and 186 /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: 17798
Total RIPE prefixes after maximum aggregation: 13866
Prefixes being announced from the RIPE address blocks: 14520
Unique aggregates announced from the RIPE address blocks: 9711
RIPE Region origin ASes present in the Internet Routing Table: 3524
RIPE Region origin ASes announcing only one prefix: 1895
RIPE Region transit ASes present in the Internet Routing Table: 622
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 105155840
Equivalent to 6 /8s, 68 /16s and 141 /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 1351 1259 997 Telstra Pty Ltd
703 402 346 309 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 299 115 86 Videsh Sanchar Nigam Ltd. Aut
4134 266 1874 97 Data Communications Bureau
4766 185 1395 135 Korea Internet Exchange for "
9443 173 45 69 Primus Telecommunications
17557 173 13 87 Pakistan Telecom
9583 152 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 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
4736 109 22 83 Magnadata Australia Pty Ltd
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1089 2669 858 UUNET Technologies, Inc.
3301 398 924 350 TeliaNet Sweden
1257 252 473 249 SWIPnet Swedish IP Network
680 233 2149 231 DFN-IP service G-WiN
3215 233 562 152 France Telecom / &Equant
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
5400 146 59 83 Concert European Core Network
8708 146 20 140 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 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 2138 8787 1519 UUNET Technologies, Inc.
7018 1120 7404 875 AT&T
3967 914 360 436 Exodus Communication
1 872 8424 647 BBN Planet
3908 777 1639 479 Supernet, Inc.
1239 775 3154 604 Sprint
8010 715 62 11 PublicNet Communications, Inc
7046 696 822 442 UUNET Technologies, Inc.
209 624 1861 296 Qwest
4323 585 364 201 Time Warner Communications, I
852 578 978 382 Telus Advanced Communications
690 533 76 318 Merit Network
705 474 349 295 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 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
209 328 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
690 215 Merit Network
4755 213 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
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 /15:391 /16:7050 /17:1366 /18:2469
/19:7181 /20:6281 /21:4714 /22:7138 /23:8860 /24:59865
/25:239 /26:237 /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 1366 2138 UUNET Technologies, Inc.
1221 1205 1351 Telstra Pty Ltd
3967 733 914 Exodus Communication
702 706 1089 UUNET Technologies, Inc.
8010 699 715 PublicNet Communications, Inc
7018 583 1120 AT&T
3908 535 777 Supernet, Inc.
690 530 533 Merit Network
7046 530 696 UUNET Technologies, Inc.
4323 495 585 Time Warner Communications, I
209 451 624 Qwest
1 446 872 BBN Planet
1239 445 775 Sprint
852 367 578 Telus Advanced Communications
705 357 474 UUNET Technologies, Inc.
2764 355 401 connect.com.au pty ltd
703 327 402 UUNET Technologies, Inc.
2149 298 396 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 12:443 13:10 15:2 17:5
20:1 24:788 25:1 32:73 38:13 40:4
43:1 44:2 52:1 53:2 57:13 61:204
62:153 63:1904 64:1487 65:1034 66:741 67:20
68:7 80:128 128:62 129:109 130:24 131:41
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
150:39 151:37 152:378 153:34 154:6 155:81
156:82 157:121 158:71 159:77 160:26 161:54
162:85 163:109 164:119 165:100 166:204 167:160
168:114 169:48 170:299 171:2 191:1 192:5282
193:2060 194:2062 195:834 196:429 198:3720 199:3298
200:2401 201:1 202:2849 203:4492 204:3263 205:2178
206:2544 207:2640 208:2608 209:2976 210:506 211:154
212:880 213:536 214:9 215:15 216:2950 217:399
218:12
End of report
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