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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 07 Jul, 2002
Analysis Summary
----------------
BGP routing table entries examined: 113303
Prefixes after maximum aggregation: 73518
Unique aggregates announced to Internet: 54153
Total ASes present in the Internet Routing Table: 13303
Origin-only ASes present in the Internet Routing Table: 11530
Origin ASes announcing only one prefix: 5102
Transit ASes present in the Internet Routing Table: 1773
Transit-only ASes present in the Internet Routing Table: 45
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: 1
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 35
Number of addresses announced to Internet: 1195112924
Equivalent to 71 /8s, 59 /16s and 249 /24s
Percentage of available address space announced: 32.2
Percentage of allocated address space announced: 59.6
Percentage of available address space allocated: 54.1
Total number of prefixes smaller than registry allocations: 45761
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18549
Total APNIC prefixes after maximum aggregation: 11069
Prefixes being announced from the APNIC address blocks: 17043
Unique aggregates announced from the APNIC address blocks: 10462
APNIC Region origin ASes present in the Internet Routing Table: 1550
APNIC Region origin ASes announcing only one prefix: 507
APNIC Region transit ASes present in the Internet Routing Table: 275
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 88147808
Equivalent to 5 /8s, 65 /16s and 7 /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 220/7
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 75523
Total ARIN prefixes after maximum aggregation: 47944
Prefixes being announced from the ARIN address blocks: 53850
Unique aggregates announced from the ARIN address blocks: 17734
ARIN Region origin ASes present in the Internet Routing Table: 7832
ARIN Region origin ASes announcing only one prefix: 2511
ARIN Region transit ASes present in the Internet Routing Table: 760
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 192714836
Equivalent to 11 /8s, 124 /16s and 152 /24s
Percentage of available ARIN address space announced: 71.8
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
25600 - 26623
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: 19231
Total RIPE prefixes after maximum aggregation: 14505
Prefixes being announced from the RIPE address blocks: 15964
Unique aggregates announced from the RIPE address blocks: 10447
RIPE Region origin ASes present in the Internet Routing Table: 3876
RIPE Region origin ASes announcing only one prefix: 2084
RIPE Region transit ASes present in the Internet Routing Table: 721
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 111971872
Equivalent to 6 /8s, 172 /16s and 142 /24s
Percentage of available RIPE address space announced: 74.2
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 1267 1207 907 Telstra Pty Ltd
4538 448 1258 18 China Education and Research
703 400 357 318 UUNET Technologies, Inc.
2764 368 358 338 connect.com.au pty ltd
2907 367 1865 342 SINET Japan
7474 312 291 211 Optus Communications Pty Ltd
17557 308 21 110 Pakistan Telecom
4755 303 120 82 Videsh Sanchar Nigam Ltd. Aut
4134 291 2114 107 Data Communications Bureau
9443 256 45 66 Primus Telecommunications
4766 217 1506 155 Korea Internet Exchange for "
4814 210 79 14 China Telecom (Group) - Beiji
9583 177 32 5 Satyam Infoway Ltd.,
7539 154 191 149 TANet2, sponsored by NSC, TAI
17676 154 2386 25 XTAGE CORPORATION
9768 142 384 73 Korea Telecom
7657 130 22 88 The Internet Group Limited
9800 125 191 18 CHINA UNICOM
4713 115 1009 106 NTT Communications Corporatio
4780 112 186 39 Digital United Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 950 2461 783 UUNET Technologies, Inc.
3301 396 924 346 TeliaNet Sweden
3352 275 535 29 Ibernet, Internet Access Netw
3215 266 628 166 France Telecom / &Equant
3320 240 1946 192 Deutsche Telekom AG
680 233 2149 230 DFN-IP service G-WiN
5515 212 783 169 Sonera Finland Autonomous Sys
1257 205 430 202 SWIPnet Swedish IP Network
5400 205 83 94 Concert European Core Network
719 189 306 128 LANLINK autonomous system
786 178 1873 177 The JANET IP Service
8708 140 23 137 Romania Data Systems S.A.
3303 136 547 135 Swisscom Ltd
2856 126 786 116 BTnet UK Regional network
12302 121 17 33 MobiFon S.A.
3246 113 317 108 Song Networks / Clinet
3269 113 690 68 TELECOM ITALIA
5511 109 192 87 France Telecom
3233 104 10 9 RNC - Romanian Natioanal R&D
2874 102 85 39 Global One Services AB
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1855 9256 1381 UUNET Technologies, Inc.
7018 1292 7423 936 AT&T
3908 922 1643 501 Supernet, Inc.
1239 837 3353 658 Sprint
1 696 8075 446 GENUITY
852 679 1173 446 Telus Advanced Communications
4323 632 438 259 Time Warner Communications, I
7843 616 358 234 Adelphia Corp.
209 612 2011 351 Qwest
7132 579 659 133 Southwestern Bell Internet Se
7046 565 889 362 UUNET Technologies, Inc.
690 512 75 317 Merit Network
7066 477 202 252 Virginia Polytechnic Institut
7029 464 165 56 Alltel Information Services,
2149 444 180 337 Performance Systems, Inc.
3549 437 839 316 Global Crossing
2914 407 2100 384 Verio, Inc.
15290 380 297 195 AT&T Canada IES
6197 347 248 169 BellSouth Network Solutions,
6347 338 370 77 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7132 579 446 Southwestern Bell Internet Se
4538 448 430 China Education and Research
3908 922 421 Supernet, Inc.
7029 464 408 Alltel Information Services,
7843 616 382 Adelphia Corp.
4323 632 373 Time Warner Communications, I
1221 1267 360 Telstra Pty Ltd
7018 1292 356 AT&T
11371 292 286 Rhythms NetConnections
4151 287 271 USDA
209 612 261 Qwest
6347 338 261 SAVVIS Communications Corpora
1 696 250 GENUITY
4355 301 249 EarthLink, Inc.
3352 275 246 Ibernet, Internet Access Netw
852 679 233 Telus Advanced Communications
7066 477 225 Virginia Polytechnic Institut
18566 228 224 Covad Communications
4755 303 221 Videsh Sanchar Nigam Ltd. Aut
6198 324 219 BellSouth Network Solutions,
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
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
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 GENUITY
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
192.5.154.0/24 16588 Spider Web Hosting Solutions
192.44.0.0/19 702 UUNET Technologies, Inc.
192.72.0.0/18 4780 Digital United Inc.
192.72.0.0/16 4780 Digital United Inc.
192.83.16.0/20 5515 Sonera Finland Autonomous Sys
192.83.32.0/19 5515 Sonera Finland Autonomous Sys
192.83.96.0/22 5515 Sonera Finland Autonomous Sys
192.83.100.0/24 5515 Sonera Finland Autonomous Sys
192.91.198.0/24 2568 CTS Network Services
192.92.167.0/24 297 NASA Science Network
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.135.248.0/23 109 Cisco Systems, Inc.
192.136.79.0/24 719 LANLINK autonomous system
192.136.86.0/24 719 LANLINK autonomous system
192.136.87.0/24 719 LANLINK autonomous system
192.136.88.0/24 719 LANLINK autonomous system
192.139.62.0/24 6539 GT Group Telecom Services Cor
192.140.0.0/16 5511 France Telecom
192.152.213.0/24 1239 Sprint
192.153.136.0/21 568 DISO-UNRRA
192.156.0.0/19 568 DISO-UNRRA
192.172.0.0/19 568 DISO-UNRRA
192.195.253.0/24 237 Merit Network
192.208.29.0/24 3908 Supernet, Inc.
192.208.30.0/23 3908 Supernet, Inc.
192.243.36.0/23 7168 Northwest Link
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:20 /9:6 /10:7 /11:12 /12:36
/13:87 /14:233 /15:418 /16:7227 /17:1453 /18:2650
/19:7665 /20:7341 /21:5148 /22:7916 /23:9618 /24:62820
/25:196 /26:162 /27:73 /28:71 /29:51 /30:73
/31:0 /32:20
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 588 950 UUNET Technologies, Inc.
3908 510 922 Supernet, Inc.
701 509 1855 UUNET Technologies, Inc.
690 453 512 Merit Network
7843 424 616 Adelphia Corp.
7066 382 477 Virginia Polytechnic Institut
7029 367 464 Alltel Information Services,
7018 348 1292 AT&T
209 274 612 Qwest
6197 249 347 BellSouth Network Solutions,
11371 245 292 Rhythms NetConnections
6198 237 324 BellSouth Network Solutions,
3301 234 396 TeliaNet Sweden
18566 224 228 Covad Communications
7046 218 565 UUNET Technologies, Inc.
1239 216 837 Sprint
1580 203 216 HQ, 5th Signal Command
3215 199 266 France Telecom / &Equant
3352 199 275 Ibernet, Internet Access Netw
1 193 696 GENUITY
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:500 13:10 15:2 17:6
20:3 24:794 25:1 32:41 38:9 40:6
44:1 57:13 61:274 62:212 63:1890 64:1258
65:1420 66:997 67:89 68:45 80:251 81:32
128:63 129:135 130:22 131:48 132:11 133:2
134:123 135:8 136:243 137:93 138:149 139:69
140:172 141:123 142:81 143:40 144:153 145:14
146:183 147:136 148:221 149:90 150:40 151:67
152:261 153:34 154:14 155:105 156:77 157:127
158:70 159:135 160:18 161:68 162:214 163:95
164:265 165:131 166:220 167:170 168:126 169:61
170:251 171:3 192:5439 193:2359 194:2070 195:917
196:395 198:3642 199:3179 200:2606 202:3256 203:4662
204:3262 205:2172 206:2669 207:2548 208:2647 209:2646
210:589 211:228 212:910 213:655 214:9 215:19
216:2858 217:466 218:28
End of report
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