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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 Sat 02 Mar, 2002
Analysis Summary
----------------
BGP routing table entries examined: 109185
Prefixes after maximum aggregation: 72141
Unique aggregates announced to Internet: 51925
Total ASes present in the Internet Routing Table: 12658
Origin-only ASes present in the Internet Routing Table: 10960
Origin ASes announcing only one prefix: 4790
Transit ASes present in the Internet Routing Table: 1698
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: 9
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: 1170432424
Equivalent to 69 /8s, 195 /16s and 97 /24s
Percentage of available address space announced: 31.6
Percentage of allocated address space announced: 59.8
Percentage of available address space allocated: 52.8
Total number of prefixes smaller than registry allocations: 73100
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 17788
Total APNIC prefixes after maximum aggregation: 10644
Prefixes being announced from the APNIC address blocks: 16353
Unique aggregates announced from the APNIC address blocks: 9975
APNIC Region origin ASes present in the Internet Routing Table: 1454
APNIC Region origin ASes announcing only one prefix: 481
APNIC Region transit ASes present in the Internet Routing Table: 250
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 80258112
Equivalent to 4 /8s, 200 /16s and 164 /24s
Percentage of available APNIC address space announced: 59.3
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: 73115
Total ARIN prefixes after maximum aggregation: 47402
Prefixes being announced from the ARIN address blocks: 51609
Unique aggregates announced from the ARIN address blocks: 16248
ARIN Region origin ASes present in the Internet Routing Table: 7495
ARIN Region origin ASes announcing only one prefix: 2346
ARIN Region transit ASes present in the Internet Routing Table: 767
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 190044484
Equivalent to 11 /8s, 83 /16s and 217 /24s
Percentage of available ARIN address space announced: 70.8
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: 18278
Total RIPE prefixes after maximum aggregation: 14095
Prefixes being announced from the RIPE address blocks: 15023
Unique aggregates announced from the RIPE address blocks: 10026
RIPE Region origin ASes present in the Internet Routing Table: 3653
RIPE Region origin ASes announcing only one prefix: 1963
RIPE Region transit ASes present in the Internet Routing Table: 666
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 107125408
Equivalent to 6 /8s, 98 /16s and 154 /24s
Percentage of available RIPE address space announced: 70.9
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, 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 1298 1229 959 Telstra Pty Ltd
4538 459 1162 16 China Education and Research
2907 407 1959 371 SINET Japan
703 398 353 308 UUNET Technologies, Inc.
2764 384 360 360 connect.com.au pty ltd
7474 298 289 203 Optus Communications Pty Ltd
4755 297 111 86 Videsh Sanchar Nigam Ltd. Aut
4134 270 1874 98 Data Communications Bureau
9443 270 44 62 Primus Telecommunications
9394 263 112 3 CHINA RAILWAY Internet(CRNET)
17557 219 14 97 Pakistan Telecom
4766 211 1393 147 Korea Internet Exchange for "
4804 147 84 67 Microplex PTY LTD
9768 147 385 89 Korea Telecom
9583 141 32 5 Satyam Infoway Ltd.,
7539 128 214 125 TANet2, sponsored by NSC, TAI
4713 127 914 104 NTT Communications Corporatio
7657 122 22 85 The Internet Group Limited
4780 120 186 40 Digital United Inc.
17676 115 1840 17 XTAGE CORPORATION
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1062 2617 857 UUNET Technologies, Inc.
3301 398 924 352 TeliaNet Sweden
3215 259 570 156 France Telecom / &Equant
1257 244 487 240 SWIPnet Swedish IP Network
680 231 2147 230 DFN-IP service G-WiN
5515 217 713 174 Sonera Finland Autonomous Sys
5400 201 82 93 Concert European Core Network
3320 195 1964 171 Deutsche Telekom AG
786 181 1858 181 The JANET IP Service
719 164 289 119 LANLINK autonomous system
8708 161 22 147 Romania Data Systems S.A.
2856 131 790 120 BTnet UK Regional network
3303 123 577 123 Swisscom Ltd
12302 118 7 36 MobiFon S.A.
3269 117 693 71 TELECOM ITALIA
8297 113 36 64 Teleglobe Autonomous System i
517 100 226 98 KPNQwest Germany GmbH
2874 95 100 35 Global One Services AB
5511 89 192 78 France Telecom
5536 89 13 25 Internet Egypt Network
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2175 8501 1518 UUNET Technologies, Inc.
7018 1203 7492 904 AT&T
3908 851 1661 479 Supernet, Inc.
1 821 8102 598 BBN Planet
1239 805 3364 627 Sprint
4323 644 435 257 Time Warner Communications, I
7046 626 836 409 UUNET Technologies, Inc.
852 618 1119 408 Telus Advanced Communications
209 536 2007 313 Qwest
3549 481 844 245 Global Crossing
7132 456 511 165 Southwestern Bell Internet Se
2914 447 2144 414 Verio, Inc.
690 439 67 285 Merit Network
7843 382 302 48 Adelphia Corp.
705 378 117 268 UUNET Technologies, Inc.
2149 368 208 306 Performance Systems, Inc.
3741 344 731 235 The Internet Solution
2386 334 355 191 AT&T Data Communications Serv
3561 333 2171 298 Cable & Wireless USA
6197 329 215 168 BellSouth Network Solutions,
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 459 443 China Education and Research
4323 644 387 Time Warner Communications, I
3908 851 372 Supernet, Inc.
1221 1298 339 Telstra Pty Ltd
7843 382 334 Adelphia Corp.
7018 1203 299 AT&T
7132 456 291 Southwestern Bell Internet Se
4151 306 290 USDA
6198 307 274 BellSouth Network Solutions,
11371 278 272 Rhythms NetConnections
9394 263 260 CHINA RAILWAY Internet(CRNET)
6347 315 237 SAVVIS Communications Corpora
3549 481 236 Global Crossing
7029 244 229 Alltel Information Services,
1 821 223 BBN Planet
209 536 223 Qwest
7046 626 217 UUNET Technologies, Inc.
4755 297 211 Videsh Sanchar Nigam Ltd. Aut
852 618 210 Telus Advanced Communications
9443 270 208 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
23309 UNALLOCATED 209.79.154.0/23 2150 California State Uni
23309 UNALLOCATED 209.79.156.0/23 2150 California State Uni
23309 UNALLOCATED 209.132.144.0/24 2150 California State Uni
23309 UNALLOCATED 209.232.36.0/22 2150 California State Uni
65534 PRIVATE 209.242.165.32/27 195 San Diego Supercompu
65534 PRIVATE 209.242.166.0/26 195 San Diego Supercompu
65534 PRIVATE 209.242.166.72/29 195 San Diego Supercompu
65534 PRIVATE 209.242.166.80/28 195 San Diego Supercompu
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
189.186.184.0/24 4471 Michigan Internet Cooperative
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 /9:6 /10:8 /11:12 /12:34
/13:88 /14:233 /15:404 /16:7163 /17:1378 /18:2532
/19:7354 /20:6831 /21:4862 /22:7423 /23:9106 /24:60763
/25:226 /26:260 /27:126 /28:93 /29:93 /30:128
/31:0 /32:43
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1410 2175 UUNET Technologies, Inc.
1221 1154 1298 Telstra Pty Ltd
702 684 1062 UUNET Technologies, Inc.
7018 624 1203 AT&T
3908 588 851 Supernet, Inc.
4323 515 644 Time Warner Communications, I
1239 468 805 Sprint
7046 441 626 UUNET Technologies, Inc.
690 435 439 Merit Network
1 427 821 BBN Planet
852 375 618 Telus Advanced Communications
209 351 536 Qwest
3549 343 481 Global Crossing
2764 340 384 connect.com.au pty ltd
705 323 378 UUNET Technologies, Inc.
703 322 398 UUNET Technologies, Inc.
2149 278 368 Performance Systems, Inc.
6197 278 329 BellSouth Network Solutions,
7066 273 302 Virginia Polytechnic Institut
11371 272 278 Rhythms NetConnections
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:1 9:1 12:492 13:10 15:1 17:5
20:3 24:762 25:1 32:68 38:9 40:6
44:1 57:15 61:239 62:176 63:1885 64:1131
65:1049 66:743 67:49 68:7 80:210 81:5
128:62 129:123 130:24 131:56 132:11 133:3
134:126 135:10 136:249 137:101 138:146 139:48
140:176 141:62 142:82 143:37 144:143 145:13
146:217 147:163 148:150 149:91 150:41 151:48
152:346 153:31 154:7 155:89 156:75 157:119
158:79 159:116 160:23 161:55 162:140 163:115
164:91 165:115 166:223 167:182 168:118 169:49
170:290 171:2 189:1 192:5424 193:2190 194:2090
195:789 196:431 198:3702 199:3224 200:2372 201:1
202:3046 203:4529 204:3321 205:2175 206:2514 207:2633
208:2558 209:2790 210:541 211:196 212:890 213:570
214:9 215:18 216:2947 217:465 218:21
End of report
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