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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 22 Aug, 2002
Analysis Summary
----------------
BGP routing table entries examined: 114360
Prefixes after maximum aggregation: 74226
Unique aggregates announced to Internet: 54432
Total ASes present in the Internet Routing Table: 13586
Origin-only ASes present in the Internet Routing Table: 11752
Origin ASes announcing only one prefix: 5235
Transit ASes present in the Internet Routing Table: 1834
Transit-only ASes present in the Internet Routing Table: 58
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 18
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: 34
Number of addresses announced to Internet: 1188069144
Equivalent to 70 /8s, 208 /16s and 127 /24s
Percentage of available address space announced: 32.1
Percentage of allocated address space announced: 58.7
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 46409
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18854
Total APNIC prefixes after maximum aggregation: 11229
Prefixes being announced from the APNIC address blocks: 17389
Unique aggregates announced from the APNIC address blocks: 10640
APNIC Region origin ASes present in the Internet Routing Table: 1586
APNIC Region origin ASes announcing only one prefix: 518
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: 12
Number of APNIC addresses announced to Internet: 92981088
Equivalent to 5 /8s, 138 /16s and 199 /24s
Percentage of available APNIC address space announced: 61.2
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: 76178
Total ARIN prefixes after maximum aggregation: 48328
Prefixes being announced from the ARIN address blocks: 54169
Unique aggregates announced from the ARIN address blocks: 18156
ARIN Region origin ASes present in the Internet Routing Table: 7985
ARIN Region origin ASes announcing only one prefix: 2573
ARIN Region transit ASes present in the Internet Routing Table: 804
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 190973296
Equivalent to 11 /8s, 98 /16s and 5 /24s
Percentage of available ARIN address space announced: 67.0
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, 68/7, 199/8, 200/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 19328
Total RIPE prefixes after maximum aggregation: 14669
Prefixes being announced from the RIPE address blocks: 16047
Unique aggregates announced from the RIPE address blocks: 10007
RIPE Region origin ASes present in the Internet Routing Table: 3957
RIPE Region origin ASes announcing only one prefix: 2144
RIPE Region transit ASes present in the Internet Routing Table: 743
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 117555200
Equivalent to 7 /8s, 1 /16s and 192 /24s
Percentage of available RIPE address space announced: 77.9
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 1209 1189 887 Telstra Pty Ltd
4538 577 1330 18 China Education and Research
703 412 374 320 UUNET
2907 363 1816 342 SINET Japan
2764 358 358 329 connect.com.au pty ltd
7474 314 292 211 Optus Communications Pty Ltd
4134 288 2198 99 Data Communications Bureau
4755 283 142 74 Videsh Sanchar Nigam Ltd. Aut
17557 272 20 96 Pakistan Telecom
4766 249 1506 156 Korea Internet Exchange for "
4814 213 79 14 China Telecom (Group)
17676 188 2930 35 XTAGE CORPORATION
9583 179 32 5 Satyam Infoway Ltd.,
9443 171 45 66 Primus Telecommunications
7539 145 172 140 TANet2, sponsored by NSC, TAI
9768 144 385 74 Korea Telecom
7657 131 22 91 The Internet Group Limited
9800 121 187 23 CHINA UNICOM
4621 116 11 62 UNINET-TH
4713 113 993 104 NTT Communications Corporatio
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 894 2430 751 UUNET - Commercial IP service
3301 399 924 346 TeliaNet Sweden
5515 320 783 180 Sonera Solution Autonomous Sy
3215 291 641 180 France Telecom Transpac
3320 246 1964 212 Deutsche Telekom AG
680 237 2150 234 DFN-IP service G-WiN
5400 212 85 101 BT Ignite European Backbone
1257 207 446 202 SWIPnet Swedish IP Network
719 183 306 128 LANLINK autonomous system
786 177 1873 177 The JANET IP Service
8708 145 41 141 Romania Data Systems S.A.
3303 144 548 143 Swisscom Ltd
2856 126 786 116 BTnet UK Regional network
12302 124 18 31 MobiFon S.A.
3246 112 317 107 Song Networks
5511 110 192 88 France Telecom
3269 106 658 63 TELECOM ITALIA
2874 102 85 39 Global One Services AB
8220 100 166 96 COLT Internet - International
8297 95 4127 50 BCE Teleglobe Canada Inc.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1788 9125 1361 UUNET Technologies, Inc.
7018 1295 7214 926 AT&T
3908 1017 1661 496 Supernet, Inc.
1239 821 3192 644 Sprint
852 724 1175 450 Telus Advanced Communications
1 669 8039 430 GENUITY
7843 658 370 273 Adelphia Corp.
7046 621 882 317 UUNET Technologies, Inc.
7132 594 664 137 Southwestern Bell Internet Se
4323 551 450 172 Time Warner Communications, I
690 519 75 326 Merit Network
209 505 2074 342 Qwest
7066 489 203 256 Virginia Polytechnic Institut
2548 460 1146 274 Business Internet, Inc.
3549 429 806 308 Global Crossing
15290 375 281 190 AT&T Canada IES
6197 362 254 182 BellSouth Network Solutions,
2914 361 2074 361 Verio, Inc.
6347 350 370 76 SAVVIS Communications Corpora
376 340 391 107 Reseau Interordinateurs Scien
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 577 559 China Education and Research
3908 1017 521 Supernet, Inc.
7132 594 457 Southwestern Bell Internet Se
7843 658 385 Adelphia Corp.
4323 551 379 Time Warner Communications, I
7018 1295 369 AT&T
1221 1209 322 Telstra Pty Ltd
7046 621 304 UUNET Technologies, Inc.
4151 304 288 USDA
852 724 274 Telus Advanced Communications
6347 350 274 SAVVIS Communications Corpora
4355 338 266 EarthLink, Inc.
18566 249 245 Covad Communications
1 669 239 GENUITY
7066 489 233 Virginia Polytechnic Institut
376 340 233 Reseau Interordinateurs Scien
4755 283 209 Videsh Sanchar Nigam Ltd. Aut
1580 212 200 ANOSCEUR
4814 213 199 China Telecom (Group)
690 519 193 Merit Network
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
192.44.0.0/19 702 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
192.119.135.0/24 270 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
192.136.136.0/24 7046 UUNET Technologies, Inc.
192.136.136.0/22 568 DISO-UNRRA
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
192.208.29.0/24 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 /8:19 /9:6 /10:7 /11:12 /12:37
/13:86 /14:234 /15:424 /16:7310 /17:1480 /18:2684
/19:7801 /20:7563 /21:5279 /22:8012 /23:9668 /24:63071
/25:179 /26:177 /27:96 /28:66 /29:39 /30:76
/31:1 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 598 1017 Supernet, Inc.
702 545 894 UUNET - Commercial IP service
701 496 1788 UUNET Technologies, Inc.
690 465 519 Merit Network
7843 458 658 Adelphia Corp.
7066 388 489 Virginia Polytechnic Institut
7018 383 1295 AT&T
7046 298 621 UUNET Technologies, Inc.
6197 264 362 BellSouth Network Solutions,
18566 245 249 Covad Communications
6198 244 320 BellSouth Network Solutions,
3301 237 399 TeliaNet Sweden
1239 224 821 Sprint
3215 223 291 France Telecom Transpac
1580 199 212 ANOSCEUR
4355 194 338 EarthLink, Inc.
4323 190 551 Time Warner Communications, I
209 187 505 Qwest
5400 186 212 BT Ignite European Backbone
4538 185 577 China Education and Research
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:1 4:3 12:540 13:10 15:2 17:6
20:4 24:829 25:1 32:41 38:9 40:6
44:1 55:1 57:14 61:321 62:239 63:1860
64:1238 65:1447 66:1014 67:96 68:88 80:259
81:45 128:65 129:157 130:21 131:55 132:11
133:2 134:124 135:9 136:500 137:95 138:147
139:63 140:187 141:66 142:68 143:50 144:142
145:17 146:250 147:142 148:245 149:79 150:41
151:58 152:266 153:37 154:11 155:116 156:71
157:112 158:67 159:135 160:20 161:72 162:124
163:87 164:260 165:129 166:103 167:265 168:119
169:62 170:192 171:3 192:5455 193:2351 194:2072
195:819 196:413 198:3678 199:3133 200:2605 202:3330
203:4716 204:3267 205:2148 206:2515 207:2505 208:2601
209:2695 210:613 211:238 212:872 213:718 214:8
215:20 216:2851 217:493 218:34 219:1
End of report
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