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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 Thu 01 Aug, 2002
Analysis Summary
----------------
BGP routing table entries examined: 114423
Prefixes after maximum aggregation: 73944
Unique aggregates announced to Internet: 54627
Total ASes present in the Internet Routing Table: 13467
Origin-only ASes present in the Internet Routing Table: 11656
Origin ASes announcing only one prefix: 5167
Transit ASes present in the Internet Routing Table: 1811
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: 23
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: 36
Number of addresses announced to Internet: 1162137925
Equivalent to 69 /8s, 68 /16s and 209 /24s
Percentage of available address space announced: 31.4
Percentage of allocated address space announced: 57.9
Percentage of available address space allocated: 54.1
Total number of prefixes smaller than registry allocations: 46557
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18896
Total APNIC prefixes after maximum aggregation: 11234
Prefixes being announced from the APNIC address blocks: 17375
Unique aggregates announced from the APNIC address blocks: 10595
APNIC Region origin ASes present in the Internet Routing Table: 1574
APNIC Region origin ASes announcing only one prefix: 511
APNIC Region transit ASes present in the Internet Routing Table: 277
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 13
Number of APNIC addresses announced to Internet: 90079712
Equivalent to 5 /8s, 94 /16s and 129 /24s
Percentage of available APNIC address space announced: 59.2
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: 76089
Total ARIN prefixes after maximum aggregation: 48109
Prefixes being announced from the ARIN address blocks: 53892
Unique aggregates announced from the ARIN address blocks: 18033
ARIN Region origin ASes present in the Internet Routing Table: 7921
ARIN Region origin ASes announcing only one prefix: 2541
ARIN Region transit ASes present in the Internet Routing Table: 785
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 190397248
Equivalent to 11 /8s, 89 /16s and 59 /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
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: 19438
Total RIPE prefixes after maximum aggregation: 14601
Prefixes being announced from the RIPE address blocks: 16133
Unique aggregates announced from the RIPE address blocks: 10490
RIPE Region origin ASes present in the Internet Routing Table: 3918
RIPE Region origin ASes announcing only one prefix: 2115
RIPE Region transit ASes present in the Internet Routing Table: 733
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 112859680
Equivalent to 6 /8s, 186 /16s and 26 /24s
Percentage of available RIPE address space announced: 74.7
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 1250 1191 895 Telstra Pty Ltd
4538 553 1275 23 China Education and Research
703 415 376 327 UUNET
2907 363 1832 341 SINET Japan
2764 358 358 329 connect.com.au pty ltd
7474 320 296 213 Optus Communications Pty Ltd
17557 297 20 96 Pakistan Telecom
4134 293 2158 103 Data Communications Bureau
4755 291 112 77 Videsh Sanchar Nigam Ltd. Aut
4766 249 1506 156 Korea Internet Exchange for "
4814 215 79 14 China Telecom (Group)
9583 182 32 5 Satyam Infoway Ltd.,
9443 175 44 71 Primus Telecommunications
17676 171 2658 32 XTAGE CORPORATION
7539 148 189 143 TANet2, sponsored by NSC, TAI
9768 144 385 74 Korea Telecom
7657 130 22 88 The Internet Group Limited
9800 125 191 18 CHINA UNICOM
4780 120 186 39 Digital United Inc.
4621 115 11 63 UNINET-TH
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 897 2425 756 UUNET - Commercial IP service
3301 386 922 338 TeliaNet Sweden
5515 320 783 180 Sonera Solution Autonomous Sy
3215 288 641 178 France Telecom Transpac
3352 274 531 31 Ibernet, Internet Access Netw
3320 268 1964 207 Deutsche Telekom AG
680 235 2150 232 DFN-IP service G-WiN
5400 209 85 97 BT Ignite European Backbone
1257 208 446 203 SWIPnet Swedish IP Network
719 182 306 127 LANLINK autonomous system
786 177 1873 177 The JANET IP Service
8708 143 23 139 Romania Data Systems S.A.
3303 141 548 140 Swisscom Ltd
2856 128 787 118 BTnet UK Regional network
12302 122 17 29 MobiFon S.A.
3269 113 690 68 TELECOM ITALIA
3246 112 317 107 Song Networks
5511 110 192 88 France Telecom
3233 107 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 1804 9178 1365 UUNET Technologies, Inc.
7018 1317 7403 941 AT&T
3908 1022 1656 490 Supernet, Inc.
1239 831 3249 651 Sprint
852 755 1175 450 Telus Advanced Communications
1 692 8048 444 GENUITY
4323 640 442 264 Time Warner Communications, I
7843 619 362 243 Adelphia Corp.
7132 584 659 133 Southwestern Bell Internet Se
209 540 2010 348 Qwest
7046 529 887 327 UUNET Technologies, Inc.
690 518 75 329 Merit Network
7066 485 203 254 Virginia Polytechnic Institut
7029 453 164 54 Alltel Information Services,
3549 427 856 301 Global Crossing
6197 377 611 37 BellSouth Network Solutions,
15290 376 297 192 AT&T Canada IES
2914 363 2081 363 Verio, Inc.
2149 357 174 260 Performance Systems, Inc.
6347 343 370 75 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1022 532 Supernet, Inc.
4538 553 530 China Education and Research
7132 584 451 Southwestern Bell Internet Se
7029 453 399 Alltel Information Services,
7018 1317 376 AT&T
4323 640 376 Time Warner Communications, I
7843 619 376 Adelphia Corp.
1221 1250 355 Telstra Pty Ltd
6197 377 340 BellSouth Network Solutions,
852 755 305 Telus Advanced Communications
1657 279 277 University of Louisville
4151 289 273 USDA
6347 343 268 SAVVIS Communications Corpora
4355 324 255 EarthLink, Inc.
1 692 248 GENUITY
3352 274 243 Ibernet, Internet Access Netw
18566 237 233 Covad Communications
7066 485 231 Virginia Polytechnic Institut
4755 291 214 Videsh Sanchar Nigam Ltd. Aut
7303 271 211 Telecom Argentina Stet-France
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 - Commercial IP service
192.58.92.0/24 19548 Adelphia Business Solutions
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 Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.91.198.0/24 2568 CTS Network Services
192.92.167.0/24 297 NASA Science Network
192.108.46.0/23 680 DFN-IP service G-WiN
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
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
192.153.136.0/21 568 DISO-UNRRA
192.156.0.0/19 568 DISO-UNRRA
192.156.164.0/24 19548 Adelphia Business Solutions
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 /8:17 /9:6 /10:7 /11:12 /12:36
/13:86 /14:235 /15:415 /16:7281 /17:1463 /18:2658
/19:7707 /20:7488 /21:5275 /22:7997 /23:9698 /24:63227
/25:202 /26:173 /27:98 /28:87 /29:67 /30:113
/31:1 /32:74
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 599 1022 Supernet, Inc.
702 542 897 UUNET - Commercial IP service
701 493 1804 UUNET Technologies, Inc.
690 464 518 Merit Network
7843 421 619 Adelphia Corp.
7066 388 485 Virginia Polytechnic Institut
7018 373 1317 AT&T
7029 358 453 Alltel Information Services,
1657 278 279 University of Louisville
6197 262 377 BellSouth Network Solutions,
6198 240 313 BellSouth Network Solutions,
3301 233 386 TeliaNet Sweden
18566 233 237 Covad Communications
3215 220 288 France Telecom Transpac
209 217 540 Qwest
1239 213 831 Sprint
3320 200 268 Deutsche Telekom AG
3352 200 274 Ibernet, Internet Access Netw
7046 196 529 UUNET Technologies, Inc.
1 195 692 GENUITY
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:524 13:10 15:2 17:6 20:3
24:700 25:1 32:41 38:9 40:6 44:1
57:13 61:323 62:236 63:1859 64:1222 65:1412
66:969 67:93 68:76 80:254 81:36 128:64
129:133 130:22 131:53 132:11 133:2 134:121
135:9 136:344 137:95 138:132 139:72 140:175
141:43 142:70 143:55 144:146 145:17 146:189
147:142 148:245 149:79 150:40 151:66 152:270
153:36 154:12 155:115 156:70 157:128 158:70
159:134 160:19 161:75 162:214 163:92 164:264
165:132 166:219 167:258 168:295 169:60 170:242
171:3 192:5449 193:2359 194:2106 195:929 196:413
198:3617 199:3170 200:2634 202:3304 203:4748 204:3262
205:2177 206:2645 207:2507 208:2611 209:2681 210:590
211:238 212:913 213:676 214:9 215:20 216:2839
217:470 218:28
End of report
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