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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 Fri 04 Jan, 2002
Analysis Summary
----------------
BGP routing table entries examined: 106707
Prefixes after maximum aggregation: 71499
Unique aggregates announced to Internet: 52059
Total ASes present in the Internet Routing Table: 12282
Origin-only ASes present in the Internet Routing Table: 10673
Origin ASes announcing only one prefix: 4622
Transit ASes present in the Internet Routing Table: 1609
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: 18
Illegal AS announcements present in the Routing Table: 10
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: 1163600648
Equivalent to 69 /8s, 91 /16s and 35 /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: 71507
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 16526
Total APNIC prefixes after maximum aggregation: 10377
Prefixes being announced from the APNIC address blocks: 15162
Unique aggregates announced from the APNIC address blocks: 9768
APNIC Region origin ASes present in the Internet Routing Table: 1416
APNIC Region origin ASes announcing only one prefix: 459
APNIC Region transit ASes present in the Internet Routing Table: 241
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 78257344
Equivalent to 4 /8s, 170 /16s and 28 /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: 72314
Total ARIN prefixes after maximum aggregation: 47229
Prefixes being announced from the ARIN address blocks: 51997
Unique aggregates announced from the ARIN address blocks: 16956
ARIN Region origin ASes present in the Internet Routing Table: 7281
ARIN Region origin ASes announcing only one prefix: 2259
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: 18
Number of ARIN addresses announced to Internet: 181660616
Equivalent to 10 /8s, 211 /16s and 235 /24s
Percentage of available ARIN address space announced: 67.7
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: 17859
Total RIPE prefixes after maximum aggregation: 13893
Prefixes being announced from the RIPE address blocks: 14575
Unique aggregates announced from the RIPE address blocks: 9721
RIPE Region origin ASes present in the Internet Routing Table: 3535
RIPE Region origin ASes announcing only one prefix: 1904
RIPE Region transit ASes present in the Internet Routing Table: 631
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 105388800
Equivalent to 6 /8s, 72 /16s and 27 /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 1347 1259 989 Telstra Pty Ltd
703 401 346 308 UUNET Technologies, Inc.
2764 399 378 373 connect.com.au pty ltd
2907 390 1891 360 SINET Japan
7474 310 285 202 Optus Communications Pty Ltd
4755 294 115 86 Videsh Sanchar Nigam Ltd. Aut
4134 268 1874 98 Data Communications Bureau
4766 189 1396 138 Korea Internet Exchange for "
17557 174 13 85 Pakistan Telecom
9443 173 45 69 Primus Telecommunications
1659 165 924 34 Taiwan Academic Network (TANe
9583 158 32 5 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 117 186 40 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 1090 2669 859 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 148 60 85 Concert European Core Network
8708 144 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 2143 8787 1523 UUNET Technologies, Inc.
7018 1119 7396 874 AT&T
3967 902 359 428 Exodus Communication
1 871 8424 646 BBN Planet
1239 779 3218 608 Sprint
3908 775 1639 479 Supernet, Inc.
8010 714 62 11 PublicNet Communications, Inc
7046 685 822 436 UUNET Technologies, Inc.
4323 585 364 201 Time Warner Communications, I
852 578 978 382 Telus Advanced Communications
690 533 76 318 Merit Network
209 510 1861 295 Qwest
705 473 349 297 UUNET Technologies, Inc.
2914 458 2210 429 Verio, Inc.
3549 403 836 201 Global Crossing
7132 402 470 168 Southwestern Bell Internet Se
2149 398 230 335 Performance Systems, Inc.
3561 379 2253 329 Cable & Wireless USA
4151 363 704 16 USDA
577 353 588 221 Bell Advanced Communications
Global Per AS Maximum Aggr summary
----------------------------------
ASN Net Savings Description
8010 703 PublicNet Communications, Inc
3967 474 Exodus Communication
4323 384 Time Warner Communications, I
1221 358 Telstra Pty Ltd
4151 347 USDA
3908 296 Supernet, Inc.
11371 271 Rhythms NetConnections
7046 249 UUNET Technologies, Inc.
7018 245 AT&T
6347 237 SAVVIS Communications Corpora
7132 234 Southwestern Bell Internet Se
702 231 UUNET Technologies, Inc.
1 225 BBN Planet
690 215 Merit Network
209 215 Qwest
4755 208 Videsh Sanchar Nigam Ltd. Aut
3549 202 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
65533 PRIVATE 65.120.119.0/24 22132 Sockeye Networks, In
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 /17:1364 /18:2468
/19:7187 /20:6309 /21:4738 /22:7139 /23:8866 /24:59904
/25:233 /26:239 /27:149 /28:96 /29:79 /30:72
/31:0 /32:14
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1369 2143 UUNET Technologies, Inc.
1221 1201 1347 Telstra Pty Ltd
3967 719 902 Exodus Communication
702 707 1090 UUNET Technologies, Inc.
8010 698 714 PublicNet Communications, Inc
7018 583 1119 AT&T
3908 533 775 Supernet, Inc.
690 530 533 Merit Network
7046 520 685 UUNET Technologies, Inc.
4323 495 585 Time Warner Communications, I
1239 448 779 Sprint
1 444 871 BBN Planet
852 367 578 Telus Advanced Communications
705 357 473 UUNET Technologies, Inc.
2764 353 399 connect.com.au pty ltd
209 336 510 Qwest
703 326 401 UUNET Technologies, Inc.
4151 316 363 USDA
2149 300 398 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 24:777 25:1 32:73 38:13 40:4
43:1 44:2 52:1 53:2 57:13 61:209
62:156 63:1906 64:1483 65:960 66:752 67:22
68:9 80:132 128:62 129:109 130:24 131:41
132:13 133:2 134:107 135:10 136:47 137:110
138:62 139:30 140:103 141:57 142:53 143:44
144:57 145:12 146:200 147:94 148:154 149:87
150:39 151:37 152:378 153:34 154:8 155:81
156:83 157:121 158:70 159:78 160:26 161:54
162:85 163:122 164:118 165:102 166:204 167:161
168:114 169:47 170:299 171:2 191:1 192:5291
193:2060 194:2063 195:854 196:430 198:3715 199:3308
200:2408 201:1 202:2829 203:4488 204:3260 205:2177
206:2569 207:2643 208:2613 209:2973 210:536 211:152
212:882 213:549 214:9 215:17 216:2943 217:398
218:12
End of report
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