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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 24 Aug, 2002
Analysis Summary
----------------
BGP routing table entries examined: 114696
Prefixes after maximum aggregation: 74287
Unique aggregates announced to Internet: 55153
Total ASes present in the Internet Routing Table: 13603
Origin-only ASes present in the Internet Routing Table: 11765
Origin ASes announcing only one prefix: 5243
Transit ASes present in the Internet Routing Table: 1838
Transit-only ASes present in the Internet Routing Table: 60
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: 1184298652
Equivalent to 70 /8s, 150 /16s and 246 /24s
Percentage of available address space announced: 32.0
Percentage of allocated address space announced: 58.6
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 46631
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18945
Total APNIC prefixes after maximum aggregation: 11241
Prefixes being announced from the APNIC address blocks: 17466
Unique aggregates announced from the APNIC address blocks: 10658
APNIC Region origin ASes present in the Internet Routing Table: 1589
APNIC Region origin ASes announcing only one prefix: 517
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: 12
Number of APNIC addresses announced to Internet: 93317472
Equivalent to 5 /8s, 143 /16s and 233 /24s
Percentage of available APNIC address space announced: 61.4
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: 76346
Total ARIN prefixes after maximum aggregation: 48342
Prefixes being announced from the ARIN address blocks: 54279
Unique aggregates announced from the ARIN address blocks: 18225
ARIN Region origin ASes present in the Internet Routing Table: 7990
ARIN Region origin ASes announcing only one prefix: 2579
ARIN Region transit ASes present in the Internet Routing Table: 801
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 191324784
Equivalent to 11 /8s, 103 /16s and 98 /24s
Percentage of available ARIN address space announced: 67.1
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: 19405
Total RIPE prefixes after maximum aggregation: 14704
Prefixes being announced from the RIPE address blocks: 16116
Unique aggregates announced from the RIPE address blocks: 10615
RIPE Region origin ASes present in the Internet Routing Table: 3964
RIPE Region origin ASes announcing only one prefix: 2147
RIPE Region transit ASes present in the Internet Routing Table: 746
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 113435136
Equivalent to 6 /8s, 194 /16s and 226 /24s
Percentage of available RIPE address space announced: 75.1
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 1206 1189 886 Telstra Pty Ltd
4538 577 1330 18 China Education and Research
703 412 376 321 UUNET
2907 365 1833 343 SINET Japan
2764 358 358 329 connect.com.au pty ltd
7474 318 292 213 Optus Communications Pty Ltd
4134 301 2222 96 Data Communications Bureau
4755 282 142 73 Videsh Sanchar Nigam Ltd. Aut
17557 272 20 96 Pakistan Telecom
4766 250 1507 157 Korea Internet Exchange for "
4814 231 79 14 China Telecom (Group)
17676 190 2962 35 XTAGE CORPORATION
9443 178 57 66 Primus Telecommunications
9583 172 32 5 Satyam Infoway Ltd.,
7539 144 188 139 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 115 11 64 UNINET-TH
4713 113 993 104 NTT Communications Corporatio
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 892 2430 749 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 213 85 101 BT Ignite European Backbone
1257 210 444 205 SWIPnet Swedish IP Network
719 185 306 129 LANLINK autonomous system
786 177 1873 177 The JANET IP Service
8708 146 41 141 Romania Data Systems S.A.
3303 143 546 142 Swisscom Ltd
2856 126 786 116 BTnet UK Regional network
12302 125 18 32 MobiFon S.A.
3246 112 317 107 Song Networks
5511 110 192 88 France Telecom
3233 108 10 9 RNC - Romanian Natioanal R&D
3269 106 658 63 TELECOM ITALIA
2874 102 85 39 Global One Services AB
8220 100 166 96 COLT Internet - International
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1790 9126 1363 UUNET Technologies, Inc.
7018 1296 7213 925 AT&T
3908 1018 1660 495 Supernet, Inc.
1239 822 3192 645 Sprint
852 731 1175 451 Telus Advanced Communications
1 666 8039 429 GENUITY
7843 652 371 274 Adelphia Corp.
7046 614 882 317 UUNET Technologies, Inc.
7132 594 664 137 Southwestern Bell Internet Se
4323 554 450 174 Time Warner Communications, I
690 518 75 325 Merit Network
209 510 2074 346 Qwest
7066 489 203 256 Virginia Polytechnic Institut
2548 462 1146 274 Business Internet, Inc.
3549 421 726 302 Global Crossing
15290 375 249 189 AT&T Canada IES
6197 362 254 182 BellSouth Network Solutions,
2914 360 2042 360 Verio, Inc.
6347 348 370 76 SAVVIS Communications Corpora
4355 340 281 72 EarthLink, Inc.
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 577 559 China Education and Research
3908 1018 523 Supernet, Inc.
7132 594 457 Southwestern Bell Internet Se
4323 554 380 Time Warner Communications, I
7843 652 378 Adelphia Corp.
7018 1296 371 AT&T
1221 1206 320 Telstra Pty Ltd
7046 614 297 UUNET Technologies, Inc.
4151 305 289 USDA
852 731 280 Telus Advanced Communications
6347 348 272 SAVVIS Communications Corpora
4355 340 268 EarthLink, Inc.
18566 260 256 Covad Communications
1 666 237 GENUITY
7066 489 233 Virginia Polytechnic Institut
376 339 233 Reseau Interordinateurs Scien
4814 231 217 China Telecom (Group)
4755 282 209 Videsh Sanchar Nigam Ltd. Aut
4134 301 205 Data Communications Bureau
1580 212 200 ANOSCEUR
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 /8:18 /9:6 /10:7 /11:12 /12:37
/13:86 /14:235 /15:424 /16:7308 /17:1483 /18:2680
/19:7809 /20:7599 /21:5296 /22:8018 /23:9692 /24:63243
/25:210 /26:192 /27:109 /28:78 /29:41 /30:75
/31:1 /32:37
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 600 1018 Supernet, Inc.
702 545 892 UUNET - Commercial IP service
701 496 1790 UUNET Technologies, Inc.
690 464 518 Merit Network
7843 452 652 Adelphia Corp.
7066 388 489 Virginia Polytechnic Institut
7018 386 1296 AT&T
7046 289 614 UUNET Technologies, Inc.
6197 263 362 BellSouth Network Solutions,
18566 256 260 Covad Communications
6198 242 318 BellSouth Network Solutions,
3301 237 399 TeliaNet Sweden
1239 224 822 Sprint
3215 223 291 France Telecom Transpac
1580 199 212 ANOSCEUR
4355 195 340 EarthLink, Inc.
4323 190 554 Time Warner Communications, I
209 188 510 Qwest
5400 187 213 BT Ignite European Backbone
4538 186 577 China Education and Research
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:1 4:3 12:543 13:10 15:2 17:6
20:4 24:813 25:1 32:41 38:9 40:6
44:1 55:1 57:14 61:317 62:236 63:1854
64:1236 65:1464 66:1052 67:97 68:92 80:260
81:46 128:65 129:157 130:21 131:55 132:11
133:2 134:124 135:9 136:502 137:95 138:147
139:67 140:188 141:73 142:68 143:50 144:139
145:17 146:258 147:142 148:249 149:80 150:41
151:57 152:265 153:37 154:11 155:116 156:71
157:113 158:67 159:140 160:20 161:75 162:123
163:87 164:264 165:127 166:103 167:265 168:120
169:62 170:191 171:3 192:5486 193:2377 194:2082
195:818 196:415 198:3666 199:3130 200:2633 202:3331
203:4734 204:3271 205:2149 206:2511 207:2506 208:2587
209:2693 210:610 211:238 212:876 213:724 214:8
215:20 216:2857 217:500 218:34 219:1
End of report
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