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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 Sun 13 Jan, 2002
Analysis Summary
----------------
BGP routing table entries examined: 108451
Prefixes after maximum aggregation: 71974
Unique aggregates announced to Internet: 52222
Total ASes present in the Internet Routing Table: 12349
Origin-only ASes present in the Internet Routing Table: 10706
Origin ASes announcing only one prefix: 4637
Transit ASes present in the Internet Routing Table: 1643
Transit-only ASes present in the Internet Routing Table: 55
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 16
Illegal AS announcements present in the Routing Table: 3
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: 1160904684
Equivalent to 69 /8s, 49 /16s and 255 /24s
Percentage of available address space announced: 31.3
Percentage of allocated address space announced: 59.3
Percentage of available address space allocated: 52.8
Total number of prefixes smaller than registry allocations: 72692
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 17185
Total APNIC prefixes after maximum aggregation: 10569
Prefixes being announced from the APNIC address blocks: 15719
Unique aggregates announced from the APNIC address blocks: 9787
APNIC Region origin ASes present in the Internet Routing Table: 1427
APNIC Region origin ASes announcing only one prefix: 464
APNIC Region transit ASes present in the Internet Routing Table: 246
Average APNIC Region AS path length visible: 5.4
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 78456896
Equivalent to 4 /8s, 173 /16s and 40 /24s
Percentage of available APNIC address space announced: 58.0
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: 73361
Total ARIN prefixes after maximum aggregation: 47505
Prefixes being announced from the ARIN address blocks: 52656
Unique aggregates announced from the ARIN address blocks: 17098
ARIN Region origin ASes present in the Internet Routing Table: 7322
ARIN Region origin ASes announcing only one prefix: 2264
ARIN Region transit ASes present in the Internet Routing Table: 746
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 183290404
Equivalent to 10 /8s, 236 /16s and 202 /24s
Percentage of available ARIN address space announced: 68.3
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: 17903
Total RIPE prefixes after maximum aggregation: 13900
Prefixes being announced from the RIPE address blocks: 14624
Unique aggregates announced from the RIPE address blocks: 9742
RIPE Region origin ASes present in the Internet Routing Table: 3546
RIPE Region origin ASes announcing only one prefix: 1909
RIPE Region transit ASes present in the Internet Routing Table: 641
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 105528832
Equivalent to 6 /8s, 74 /16s and 62 /24s
Percentage of available RIPE address space announced: 69.9
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 1333 1241 985 Telstra Pty Ltd
4538 419 1064 13 China Education and Research
2764 400 378 374 connect.com.au pty ltd
703 396 337 303 UUNET Technologies, Inc.
2907 392 1907 362 SINET Japan
4755 320 115 97 Videsh Sanchar Nigam Ltd. Aut
7474 313 285 204 Optus Communications Pty Ltd
4134 268 1858 100 Data Communications Bureau
4766 198 1380 145 Korea Internet Exchange for "
17557 175 13 86 Pakistan Telecom
9443 172 45 68 Primus Telecommunications
9583 156 32 5 Satyam Infoway Ltd.,
4740 145 34 119 OzEmail ISP
9768 145 381 88 Korea Telecom
1659 144 924 34 Taiwan Academic Network (TANe
7657 121 21 84 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 113 193 22 CHINA UNICOM
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1084 2635 859 UUNET Technologies, Inc.
3301 400 924 353 TeliaNet Sweden
1257 255 489 249 SWIPnet Swedish IP Network
680 233 2149 231 DFN-IP service G-WiN
3215 233 562 152 France Telecom / &Equant
5515 218 705 176 Sonera Finland Autonomous Sys
3320 201 1961 169 Deutsche Telekom AG
786 182 1874 182 The JANET IP Service
719 164 289 118 LANLINK autonomous system
5400 147 60 86 Concert European Core Network
8708 146 20 136 Romania Data Systems S.A.
5549 143 78 65 Nextra Deutschland GmbH + Co.
2856 136 777 125 BTnet UK Regional network
3303 127 576 125 Swisscom Ltd
3269 115 663 70 TELECOM ITALIA
12302 112 7 36 MobiFon S.A.
8297 110 37 62 Teleglobe Autonomous System i
517 108 230 106 KPNQwest Germany GmbH
1290 97 412 72 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 2144 8810 1534 UUNET Technologies, Inc.
7018 1165 7508 905 AT&T
1 872 8383 644 BBN Planet
3908 802 1639 473 Supernet, Inc.
1239 779 3158 601 Sprint
3967 771 361 332 Exodus Communication
8010 715 62 11 PublicNet Communications, Inc
7046 670 837 433 UUNET Technologies, Inc.
4323 614 412 216 Time Warner Communications, I
852 582 979 384 Telus Advanced Communications
690 546 77 322 Merit Network
209 511 1876 297 Qwest
705 488 437 302 UUNET Technologies, Inc.
2914 459 2210 428 Verio, Inc.
4293 419 90 311 Cable & Wireless USA
3549 415 831 210 Global Crossing
7132 414 471 159 Southwestern Bell Internet Se
2149 392 214 328 Performance Systems, Inc.
3561 371 2204 323 Cable & Wireless USA
4151 360 704 16 USDA
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
8010 715 704 PublicNet Communications, Inc
3967 771 439 Exodus Communication
4538 419 406 China Education and Research
4323 614 398 Time Warner Communications, I
1221 1333 348 Telstra Pty Ltd
4151 360 344 USDA
3908 802 329 Supernet, Inc.
11371 278 271 Rhythms NetConnections
7018 1165 260 AT&T
7132 414 255 Southwestern Bell Internet Se
6347 325 242 SAVVIS Communications Corpora
7046 670 237 UUNET Technologies, Inc.
1 872 228 BBN Planet
702 1084 225 UUNET Technologies, Inc.
690 546 224 Merit Network
4755 320 223 Videsh Sanchar Nigam Ltd. Aut
209 511 214 Qwest
3549 415 205 Global Crossing
4355 229 199 EarthLink, Inc.
852 582 198 Telus Advanced Communications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65003 PRIVATE 64.80.126.0/23 15270 PaeTec.net -a divisi
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
24583 UNALLOCATED 212.104.84.0/24 702 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 /9:6 /10:7 /11:12 /12:38
/13:92 /14:230 /15:394 /16:7145 /17:1407 /18:2473
/19:7248 /20:6588 /21:4851 /22:7272 /23:9022 /24:60735
/25:226 /26:230 /27:123 /28:81 /29:75 /30:126
/31:0 /32:52
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1371 2144 UUNET Technologies, Inc.
1221 1186 1333 Telstra Pty Ltd
702 702 1084 UUNET Technologies, Inc.
8010 699 715 PublicNet Communications, Inc
7018 610 1165 AT&T
3967 585 771 Exodus Communication
3908 560 802 Supernet, Inc.
690 542 546 Merit Network
4323 508 614 Time Warner Communications, I
7046 503 670 UUNET Technologies, Inc.
1 450 872 BBN Planet
1239 450 779 Sprint
4293 406 419 Cable & Wireless USA
852 368 582 Telus Advanced Communications
705 359 488 UUNET Technologies, Inc.
2764 355 400 connect.com.au pty ltd
209 337 511 Qwest
703 323 396 UUNET Technologies, Inc.
4151 313 360 USDA
2149 296 392 Performance Systems, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 7:1 9:1 12:455 13:10 15:2
17:5 20:1 24:761 25:1 32:74 38:13
40:4 43:1 44:2 57:14 61:226 62:161
63:1911 64:1496 65:994 66:775 67:25 68:15
80:140 128:63 129:119 130:23 131:44 132:13
133:2 134:121 135:10 136:121 137:98 138:61
139:30 140:72 141:57 142:64 143:42 144:54
145:12 146:214 147:60 148:163 149:87 150:39
151:43 152:385 153:34 154:7 155:85 156:81
157:117 158:72 159:79 160:27 161:55 162:96
163:128 164:131 165:112 166:218 167:160 168:113
169:48 170:281 171:2 191:1 192:5394 193:2062
194:2049 195:840 196:429 198:3735 199:3261 200:2382
201:1 202:2914 203:4506 204:3300 205:2196 206:2743
207:2735 208:2814 209:2916 210:538 211:149 212:883
213:558 214:7 215:16 216:2951 217:410 218:12
End of report
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