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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 Mon 14 Jan, 2002
Analysis Summary
----------------
BGP routing table entries examined: 108471
Prefixes after maximum aggregation: 71985
Unique aggregates announced to Internet: 52251
Total ASes present in the Internet Routing Table: 12352
Origin-only ASes present in the Internet Routing Table: 10704
Origin ASes announcing only one prefix: 4636
Transit ASes present in the Internet Routing Table: 1648
Transit-only ASes present in the Internet Routing Table: 54
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: 1161572556
Equivalent to 69 /8s, 60 /16s and 48 /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: 72704
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 17239
Total APNIC prefixes after maximum aggregation: 10588
Prefixes being announced from the APNIC address blocks: 15770
Unique aggregates announced from the APNIC address blocks: 9800
APNIC Region origin ASes present in the Internet Routing Table: 1429
APNIC Region origin ASes announcing only one prefix: 464
APNIC Region transit ASes present in the Internet Routing Table: 247
Average APNIC Region AS path length visible: 5.4
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 78599744
Equivalent to 4 /8s, 175 /16s and 86 /24s
Percentage of available APNIC address space announced: 58.1
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: 73337
Total ARIN prefixes after maximum aggregation: 47479
Prefixes being announced from the ARIN address blocks: 52629
Unique aggregates announced from the ARIN address blocks: 17094
ARIN Region origin ASes present in the Internet Routing Table: 7325
ARIN Region origin ASes announcing only one prefix: 2264
ARIN Region transit ASes present in the Internet Routing Table: 747
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 183343108
Equivalent to 10 /8s, 237 /16s and 152 /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: 17893
Total RIPE prefixes after maximum aggregation: 13918
Prefixes being announced from the RIPE address blocks: 14612
Unique aggregates announced from the RIPE address blocks: 9755
RIPE Region origin ASes present in the Internet Routing Table: 3545
RIPE Region origin ASes announcing only one prefix: 1908
RIPE Region transit ASes present in the Internet Routing Table: 643
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 105804032
Equivalent to 6 /8s, 78 /16s and 113 /24s
Percentage of available RIPE address space announced: 70.1
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 1331 1240 983 Telstra Pty Ltd
4538 448 1098 14 China Education and Research
2764 400 378 374 connect.com.au pty ltd
703 395 337 302 UUNET Technologies, Inc.
2907 393 1908 363 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 176 14 87 Pakistan Telecom
9443 172 45 68 Primus Telecommunications
9583 145 32 5 Satyam Infoway Ltd.,
9768 145 381 88 Korea Telecom
1659 144 924 34 Taiwan Academic Network (TANe
4740 144 34 118 OzEmail ISP
7657 123 21 83 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 1083 2635 858 UUNET Technologies, Inc.
3301 399 924 352 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 219 705 176 Sonera Finland Autonomous Sys
3320 191 1961 169 Deutsche Telekom AG
786 182 1874 182 The JANET IP Service
719 164 289 118 LANLINK autonomous system
8708 148 20 138 Romania Data Systems S.A.
5400 147 60 86 Concert European Core Network
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 2150 8810 1538 UUNET Technologies, Inc.
7018 1166 7508 906 AT&T
1 863 8381 635 BBN Planet
3908 802 1639 473 Supernet, Inc.
1239 780 3159 602 Sprint
3967 749 360 320 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
209 510 1876 296 Qwest
705 487 437 301 UUNET Technologies, Inc.
2914 458 2210 427 Verio, Inc.
4293 418 90 310 Cable & Wireless USA
7132 416 481 161 Southwestern Bell Internet Se
3549 415 831 210 Global Crossing
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
4538 448 434 China Education and Research
3967 749 429 Exodus Communication
4323 614 398 Time Warner Communications, I
1221 1331 348 Telstra Pty Ltd
4151 360 344 USDA
3908 802 329 Supernet, Inc.
11371 278 271 Rhythms NetConnections
7018 1166 260 AT&T
7132 416 255 Southwestern Bell Internet Se
6347 324 241 SAVVIS Communications Corpora
7046 670 237 UUNET Technologies, Inc.
1 863 228 BBN Planet
702 1083 225 UUNET Technologies, Inc.
690 546 224 Merit Network
4755 320 223 Videsh Sanchar Nigam Ltd. Aut
209 510 214 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 /14:231 /15:393 /16:7148 /17:1407 /18:2474
/19:7248 /20:6583 /21:4848 /22:7270 /23:9010 /24:60751
/25:228 /26:226 /27:129 /28:92 /29:74 /30:134
/31:0 /32:52
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1376 2150 UUNET Technologies, Inc.
1221 1184 1331 Telstra Pty Ltd
702 701 1083 UUNET Technologies, Inc.
8010 699 715 PublicNet Communications, Inc
7018 611 1166 AT&T
3967 564 749 Exodus Communication
3908 560 802 Supernet, Inc.
690 542 546 Merit Network
4323 508 614 Time Warner Communications, I
7046 502 670 UUNET Technologies, Inc.
1239 451 780 Sprint
1 441 863 BBN Planet
4293 406 418 Cable & Wireless USA
852 369 582 Telus Advanced Communications
705 358 487 UUNET Technologies, Inc.
2764 355 400 connect.com.au pty ltd
209 336 510 Qwest
703 322 395 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 24:763 25:1 32:74 38:13
40:4 43:1 44:2 52:1 57:14 61:226
62:161 63:1911 64:1497 65:995 66:782 67:25
68:15 80:141 128:63 129:121 130:23 131:44
132:13 133:2 134:121 135:10 136:121 137:98
138:62 139:30 140:72 141:57 142:64 143:42
144:54 145:12 146:214 147:60 148:162 149:87
150:39 151:43 152:385 153:34 154:7 155:85
156:81 157:118 158:72 159:79 160:27 161:55
162:96 163:126 164:131 165:111 166:218 167:160
168:113 169:48 170:281 171:2 191:1 192:5394
193:2065 194:2055 195:830 196:431 198:3744 199:3257
200:2396 201:1 202:2909 203:4517 204:3298 205:2196
206:2751 207:2704 208:2806 209:2918 210:537 211:150
212:884 213:556 214:7 215:16 216:2958 217:412
218:12
End of report
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