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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 24 Mar, 2002
Analysis Summary
----------------
BGP routing table entries examined: 109812
Prefixes after maximum aggregation: 72038
Unique aggregates announced to Internet: 52269
Total ASes present in the Internet Routing Table: 12800
Origin-only ASes present in the Internet Routing Table: 11078
Origin ASes announcing only one prefix: 4854
Transit ASes present in the Internet Routing Table: 1722
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: 19
Illegal AS announcements present in the Routing Table: 6
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: 1168584808
Equivalent to 69 /8s, 167 /16s and 48 /24s
Percentage of available address space announced: 31.5
Percentage of allocated address space announced: 59.7
Percentage of available address space allocated: 52.8
Total number of prefixes smaller than registry allocations: 73489
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18163
Total APNIC prefixes after maximum aggregation: 10687
Prefixes being announced from the APNIC address blocks: 16638
Unique aggregates announced from the APNIC address blocks: 10044
APNIC Region origin ASes present in the Internet Routing Table: 1465
APNIC Region origin ASes announcing only one prefix: 475
APNIC Region transit ASes present in the Internet Routing Table: 258
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 82102336
Equivalent to 4 /8s, 228 /16s and 200 /24s
Percentage of available APNIC address space announced: 60.7
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: 73224
Total ARIN prefixes after maximum aggregation: 47177
Prefixes being announced from the ARIN address blocks: 51796
Unique aggregates announced from the ARIN address blocks: 16341
ARIN Region origin ASes present in the Internet Routing Table: 7580
ARIN Region origin ASes announcing only one prefix: 2388
ARIN Region transit ASes present in the Internet Routing Table: 772
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 190253508
Equivalent to 11 /8s, 87 /16s and 9 /24s
Percentage of available ARIN address space announced: 70.9
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: 18421
Total RIPE prefixes after maximum aggregation: 14174
Prefixes being announced from the RIPE address blocks: 15142
Unique aggregates announced from the RIPE address blocks: 10085
RIPE Region origin ASes present in the Internet Routing Table: 3699
RIPE Region origin ASes announcing only one prefix: 1991
RIPE Region transit ASes present in the Internet Routing Table: 679
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 107931424
Equivalent to 6 /8s, 110 /16s and 231 /24s
Percentage of available RIPE address space announced: 71.5
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 1212 949 Telstra Pty Ltd
4538 462 1194 17 China Education and Research
2907 436 1894 370 SINET Japan
703 410 335 318 UUNET Technologies, Inc.
2764 385 361 361 connect.com.au pty ltd
9394 318 113 4 CHINA RAILWAY Internet(CRNET)
7474 304 290 208 Optus Communications Pty Ltd
4755 290 111 83 Videsh Sanchar Nigam Ltd. Aut
9443 276 44 64 Primus Telecommunications
4134 274 1978 96 Data Communications Bureau
17557 253 16 97 Pakistan Telecom
4766 206 1516 146 Korea Internet Exchange for "
7539 166 239 160 TANet2, sponsored by NSC, TAI
4804 165 84 68 Microplex PTY LTD
9583 148 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 1025 2597 841 UUNET Technologies, Inc.
3301 394 924 349 TeliaNet Sweden
3215 265 586 158 France Telecom / &Equant
5515 261 696 167 Sonera Finland Autonomous Sys
680 232 2149 231 DFN-IP service G-WiN
1257 223 464 219 SWIPnet Swedish IP Network
5400 199 84 94 Concert European Core Network
3320 197 1964 172 Deutsche Telekom AG
786 182 1874 182 The JANET IP Service
719 163 289 118 LANLINK autonomous system
8708 156 23 144 Romania Data Systems S.A.
2856 129 788 118 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 67 Teleglobe Autonomous System i
517 103 226 99 KPNQwest Germany GmbH
5511 102 194 91 France Telecom
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 2110 8368 1495 UUNET Technologies, Inc.
7018 1229 7526 914 AT&T
3908 848 1675 479 Supernet, Inc.
1239 812 3369 636 Sprint
1 721 8116 546 BBN Planet
852 673 5204 412 Telus Advanced Communications
4323 626 436 253 Time Warner Communications, I
7046 589 833 391 UUNET Technologies, Inc.
209 553 1992 319 Qwest
7132 518 545 158 Southwestern Bell Internet Se
3549 505 845 260 Global Crossing
690 462 69 305 Merit Network
2914 408 2133 405 Verio, Inc.
7843 398 314 48 Adelphia Corp.
705 375 115 267 UUNET Technologies, Inc.
2149 372 209 310 Performance Systems, Inc.
3741 343 731 233 The Internet Solution
6197 330 217 171 BellSouth Network Solutions,
6347 320 370 78 SAVVIS Communications Corpora
7066 318 203 251 Virginia Polytechnic Institut
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 462 445 China Education and Research
4323 626 373 Time Warner Communications, I
3908 848 369 Supernet, Inc.
7132 518 360 Southwestern Bell Internet Se
7843 398 350 Adelphia Corp.
1221 1286 337 Telstra Pty Ltd
7018 1229 315 AT&T
9394 318 314 CHINA RAILWAY Internet(CRNET)
4151 304 288 USDA
6198 310 279 BellSouth Network Solutions,
11371 277 271 Rhythms NetConnections
852 673 261 Telus Advanced Communications
3549 505 245 Global Crossing
6347 320 242 SAVVIS Communications Corpora
209 553 234 Qwest
7029 245 230 Alltel Information Services,
9443 276 212 Primus Telecommunications
4755 290 207 Videsh Sanchar Nigam Ltd. Aut
4355 242 205 EarthLink, Inc.
6517 245 202 Yipes Communications, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
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,
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 /8:19 /9:5 /10:8 /11:14 /12:35
/13:88 /14:229 /15:404 /16:7184 /17:1393 /18:2553
/19:7424 /20:6929 /21:4950 /22:7508 /23:9108 /24:60988
/25:222 /26:259 /27:115 /28:101 /29:102 /30:134
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1376 2110 UUNET Technologies, Inc.
1221 1144 1286 Telstra Pty Ltd
702 649 1025 UUNET Technologies, Inc.
7018 645 1229 AT&T
3908 580 848 Supernet, Inc.
4323 496 626 Time Warner Communications, I
1239 469 812 Sprint
690 457 462 Merit Network
852 425 673 Telus Advanced Communications
7046 405 589 UUNET Technologies, Inc.
3549 366 505 Global Crossing
209 363 553 Qwest
2764 341 385 connect.com.au pty ltd
703 331 410 UUNET Technologies, Inc.
705 322 375 UUNET Technologies, Inc.
1 321 721 BBN Planet
9394 304 318 CHINA RAILWAY Internet(CRNET)
7066 289 318 Virginia Polytechnic Institut
2149 287 372 Performance Systems, Inc.
6197 279 330 BellSouth Network Solutions,
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:1 9:1 12:477 13:10 15:2 17:5
20:2 24:739 25:1 32:68 38:9 40:6
44:1 57:14 61:303 62:168 63:1900 64:1181
65:1099 66:808 67:53 68:3 80:222 81:6
128:64 129:132 130:22 131:56 132:11 133:3
134:127 135:10 136:285 137:101 138:148 139:49
140:187 141:90 142:84 143:38 144:145 145:11
146:221 147:147 148:136 149:92 150:39 151:50
152:275 153:33 154:2 155:89 156:75 157:118
158:72 159:125 160:27 161:55 162:140 163:104
164:121 165:123 166:224 167:193 168:90 169:51
170:290 171:2 192:5431 193:2210 194:2093 195:792
196:427 198:3721 199:3205 200:2389 201:1 202:3097
203:4545 204:3276 205:2135 206:2484 207:2578 208:2568
209:2740 210:577 211:203 212:857 213:594 214:9
215:19 216:3026 217:461 218:14
End of report
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