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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 27 Mar, 2002
Analysis Summary
----------------
BGP routing table entries examined: 110436
Prefixes after maximum aggregation: 72229
Unique aggregates announced to Internet: 53395
Total ASes present in the Internet Routing Table: 12821
Origin-only ASes present in the Internet Routing Table: 11093
Origin ASes announcing only one prefix: 4854
Transit ASes present in the Internet Routing Table: 1728
Transit-only ASes present in the Internet Routing Table: 56
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 19
Illegal AS announcements present in the Routing Table: 13
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: 1163173992
Equivalent to 69 /8s, 84 /16s and 160 /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: 74043
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18197
Total APNIC prefixes after maximum aggregation: 10700
Prefixes being announced from the APNIC address blocks: 16680
Unique aggregates announced from the APNIC address blocks: 10080
APNIC Region origin ASes present in the Internet Routing Table: 1469
APNIC Region origin ASes announcing only one prefix: 476
APNIC Region transit ASes present in the Internet Routing Table: 260
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 82212672
Equivalent to 4 /8s, 230 /16s and 119 /24s
Percentage of available APNIC address space announced: 60.8
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: 73748
Total ARIN prefixes after maximum aggregation: 47344
Prefixes being announced from the ARIN address blocks: 52139
Unique aggregates announced from the ARIN address blocks: 17420
ARIN Region origin ASes present in the Internet Routing Table: 7589
ARIN Region origin ASes announcing only one prefix: 2382
ARIN Region transit ASes present in the Internet Routing Table: 771
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 183786948
Equivalent to 10 /8s, 244 /16s and 93 /24s
Percentage of available ARIN address space announced: 68.5
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: 18487
Total RIPE prefixes after maximum aggregation: 14185
Prefixes being announced from the RIPE address blocks: 15204
Unique aggregates announced from the RIPE address blocks: 10062
RIPE Region origin ASes present in the Internet Routing Table: 3706
RIPE Region origin ASes announcing only one prefix: 1996
RIPE Region transit ASes present in the Internet Routing Table: 682
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 108324896
Equivalent to 6 /8s, 116 /16s and 232 /24s
Percentage of available RIPE address space announced: 71.7
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, 24576 - 25599
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 1286 1211 946 Telstra Pty Ltd
4538 463 1194 17 China Education and Research
2907 439 1895 373 SINET Japan
703 412 336 320 UUNET Technologies, Inc.
2764 386 361 361 connect.com.au pty ltd
9394 318 113 4 CHINA RAILWAY Internet(CRNET)
7474 306 290 210 Optus Communications Pty Ltd
4755 286 111 82 Videsh Sanchar Nigam Ltd. Aut
9443 276 44 64 Primus Telecommunications
4134 273 1978 95 Data Communications Bureau
17557 254 16 94 Pakistan Telecom
4766 209 1516 147 Korea Internet Exchange for "
7539 165 239 159 TANet2, sponsored by NSC, TAI
4804 164 84 67 Microplex PTY LTD
9583 149 32 5 Satyam Infoway Ltd.,
9768 138 385 82 Korea Telecom
7657 122 22 85 The Internet Group Limited
4713 120 891 104 NTT Communications Corporatio
17676 119 1904 12 XTAGE CORPORATION
4780 118 186 40 Digital United Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1029 2597 844 UUNET Technologies, Inc.
3301 394 924 349 TeliaNet Sweden
3215 266 586 159 France Telecom / &Equant
5515 262 696 168 Sonera Finland Autonomous Sys
680 232 2149 231 DFN-IP service G-WiN
3320 224 1964 172 Deutsche Telekom AG
1257 222 463 218 SWIPnet Swedish IP Network
5400 199 84 94 Concert European Core Network
786 182 1874 182 The JANET IP Service
719 162 289 118 LANLINK autonomous system
8708 158 23 146 Romania Data Systems S.A.
2856 130 788 119 BTnet UK Regional network
3303 124 565 123 Swisscom Ltd
12302 124 8 45 MobiFon S.A.
3269 117 694 71 TELECOM ITALIA
8297 116 53 66 Teleglobe Autonomous System i
5511 103 194 91 France Telecom
517 102 226 98 KPNQwest Germany GmbH
9051 101 6 25 INCONET Autonomous System
2874 97 100 37 Global One Services AB
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2091 8468 1458 UUNET Technologies, Inc.
7018 1230 7527 915 AT&T
3908 848 1675 478 Supernet, Inc.
1239 814 3370 638 Sprint
1 809 8122 609 BBN Planet
852 627 1112 414 Telus Advanced Communications
4323 626 436 253 Time Warner Communications, I
7046 608 837 381 UUNET Technologies, Inc.
209 555 1992 320 Qwest
7132 519 546 159 Southwestern Bell Internet Se
3549 506 845 260 Global Crossing
690 462 69 305 Merit Network
2914 413 2170 410 Verio, Inc.
7843 401 314 48 Adelphia Corp.
705 380 116 272 UUNET Technologies, Inc.
2149 370 208 308 Performance Systems, Inc.
3741 343 731 233 The Internet Solution
6197 330 217 171 BellSouth Network Solutions,
3561 322 2152 289 Cable & Wireless USA
7066 318 203 251 Virginia Polytechnic Institut
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 463 446 China Education and Research
4323 626 373 Time Warner Communications, I
3908 848 370 Supernet, Inc.
7132 519 360 Southwestern Bell Internet Se
7843 401 353 Adelphia Corp.
1221 1286 340 Telstra Pty Ltd
7018 1230 315 AT&T
9394 318 314 CHINA RAILWAY Internet(CRNET)
4151 307 291 USDA
6198 310 279 BellSouth Network Solutions,
4565 311 277 Epoch Networks
11371 277 271 Rhythms NetConnections
3549 506 246 Global Crossing
6347 316 238 SAVVIS Communications Corpora
209 555 235 Qwest
7029 247 232 Alltel Information Services,
7046 608 227 UUNET Technologies, Inc.
852 627 213 Telus Advanced Communications
9443 276 212 Primus Telecommunications
4355 245 208 EarthLink, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
23279 UNALLOCATED 63.238.4.0/24 209 Qwest
23279 UNALLOCATED 65.218.242.0/24 209 Qwest
23279 UNALLOCATED 65.218.243.0/24 209 Qwest
23279 UNALLOCATED 65.218.244.0/24 209 Qwest
23279 UNALLOCATED 65.218.245.0/24 209 Qwest
112 UNALLOCATED 192.175.48.0/24 3557 Vixie Enterprises
65535 PRIVATE 198.93.230.0/24 3550 Ateneo de Manila Uni
65535 PRIVATE 198.93.231.0/24 3550 Ateneo de Manila Uni
65535 PRIVATE 198.94.168.0/24 3550 Ateneo de Manila Uni
65535 PRIVATE 198.94.169.0/24 3550 Ateneo de Manila Uni
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
23279 UNALLOCATED 216.207.52.0/24 209 Qwest
23279 UNALLOCATED 216.207.53.0/24 209 Qwest
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
96.0.0.0/20 3549 Global Crossing
132.0.0.0/10 568 DISO-UNRRA
134.137.0.0/16 7170 AT&T Government Markets
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.
153.36.0.0/14 701 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
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 /10:8 /11:14 /12:35
/13:88 /14:231 /15:403 /16:7192 /17:1397 /18:2568
/19:7426 /20:6949 /21:4946 /22:7535 /23:9173 /24:61470
/25:222 /26:260 /27:117 /28:102 /29:99 /30:136
/31:0 /32:42
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1355 2091 UUNET Technologies, Inc.
1221 1144 1286 Telstra Pty Ltd
702 653 1029 UUNET Technologies, Inc.
7018 645 1230 AT&T
3908 580 848 Supernet, Inc.
4323 495 626 Time Warner Communications, I
1239 470 814 Sprint
690 457 462 Merit Network
7046 420 608 UUNET Technologies, Inc.
1 401 809 BBN Planet
852 381 627 Telus Advanced Communications
3549 366 506 Global Crossing
209 364 555 Qwest
2764 342 386 connect.com.au pty ltd
703 332 412 UUNET Technologies, Inc.
705 327 380 UUNET Technologies, Inc.
9394 304 318 CHINA RAILWAY Internet(CRNET)
7066 289 318 Virginia Polytechnic Institut
4565 286 311 Epoch Networks
2149 285 370 Performance Systems, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:1 9:1 12:477 13:10 15:2 17:6
20:2 24:740 25:1 32:68 38:8 40:6
44:1 57:14 61:303 62:163 63:1904 64:1185
65:1108 66:814 67:53 68:3 80:223 81:8
128:64 129:127 130:23 131:56 132:10 133:3
134:127 135:10 136:313 137:101 138:149 139:49
140:187 141:90 142:84 143:38 144:143 145:11
146:220 147:147 148:136 149:92 150:40 151:47
152:322 153:33 154:4 155:108 156:75 157:118
158:72 159:125 160:27 161:55 162:141 163:104
164:117 165:123 166:226 167:194 168:100 169:52
170:287 171:2 192:5441 193:2255 194:2075 195:796
196:425 198:3734 199:3202 200:2413 201:1 202:3098
203:4565 204:3264 205:2157 206:2553 207:2636 208:2567
209:2777 210:590 211:205 212:869 213:598 214:9
215:19 216:3089 217:465 218:14
End of report
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