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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 Wed 21 Aug, 2002
Analysis Summary
----------------
BGP routing table entries examined: 114514
Prefixes after maximum aggregation: 74191
Unique aggregates announced to Internet: 55037
Total ASes present in the Internet Routing Table: 13566
Origin-only ASes present in the Internet Routing Table: 11732
Origin ASes announcing only one prefix: 5221
Transit ASes present in the Internet Routing Table: 1834
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: 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: 1183725048
Equivalent to 70 /8s, 142 /16s and 53 /24s
Percentage of available address space announced: 31.9
Percentage of allocated address space announced: 58.5
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 46614
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18925
Total APNIC prefixes after maximum aggregation: 11246
Prefixes being announced from the APNIC address blocks: 17440
Unique aggregates announced from the APNIC address blocks: 10616
APNIC Region origin ASes present in the Internet Routing Table: 1588
APNIC Region origin ASes announcing only one prefix: 516
APNIC Region transit ASes present in the Internet Routing Table: 279
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 92879456
Equivalent to 5 /8s, 137 /16s and 58 /24s
Percentage of available APNIC address space announced: 61.1
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: 76260
Total ARIN prefixes after maximum aggregation: 48298
Prefixes being announced from the ARIN address blocks: 54095
Unique aggregates announced from the ARIN address blocks: 18131
ARIN Region origin ASes present in the Internet Routing Table: 7967
ARIN Region origin ASes announcing only one prefix: 2566
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: 190941008
Equivalent to 11 /8s, 97 /16s and 135 /24s
Percentage of available ARIN address space announced: 66.9
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, 68/7, 199/8, 200/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 19329
Total RIPE prefixes after maximum aggregation: 14647
Prefixes being announced from the RIPE address blocks: 16063
Unique aggregates announced from the RIPE address blocks: 10661
RIPE Region origin ASes present in the Internet Routing Table: 3956
RIPE Region origin ASes announcing only one prefix: 2139
RIPE Region transit ASes present in the Internet Routing Table: 742
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 113428992
Equivalent to 6 /8s, 194 /16s and 202 /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 1213 1189 887 Telstra Pty Ltd
4538 576 1330 18 China Education and Research
703 413 376 321 UUNET
2907 363 1815 342 SINET Japan
2764 358 358 329 connect.com.au pty ltd
7474 314 292 211 Optus Communications Pty Ltd
4134 298 2182 101 Data Communications Bureau
4755 282 142 73 Videsh Sanchar Nigam Ltd. Aut
17557 271 20 98 Pakistan Telecom
4766 249 1506 156 Korea Internet Exchange for "
4814 231 79 14 China Telecom (Group)
17676 187 2914 34 XTAGE CORPORATION
9583 181 32 5 Satyam Infoway Ltd.,
9443 172 45 68 Primus Telecommunications
7539 145 172 140 TANet2, sponsored by NSC, TAI
9768 144 385 74 Korea Telecom
7657 130 22 91 The Internet Group Limited
9800 121 187 23 CHINA UNICOM
4713 114 1009 105 NTT Communications Corporatio
4621 112 11 65 UNINET-TH
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 891 2429 748 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
719 182 306 128 LANLINK autonomous system
786 177 1873 177 The JANET IP Service
8708 145 41 141 Romania Data Systems S.A.
3303 142 548 141 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 1785 9126 1358 UUNET Technologies, Inc.
7018 1295 7210 927 AT&T
3908 1011 1659 493 Supernet, Inc.
1239 819 3191 642 Sprint
852 724 1175 450 Telus Advanced Communications
1 670 8055 432 GENUITY
7843 653 370 273 Adelphia Corp.
7046 624 882 318 UUNET Technologies, Inc.
7132 593 664 136 Southwestern Bell Internet Se
4323 551 450 172 Time Warner Communications, I
690 523 76 329 Merit Network
209 508 2073 345 Qwest
7066 489 203 256 Virginia Polytechnic Institut
2548 463 1162 276 Business Internet, Inc.
3549 429 806 308 Global Crossing
15290 376 281 191 AT&T Canada IES
6197 362 254 182 BellSouth Network Solutions,
2914 361 2074 361 Verio, Inc.
6347 350 370 76 SAVVIS Communications Corpora
376 339 391 106 Reseau Interordinateurs Scien
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 576 558 China Education and Research
3908 1011 518 Supernet, Inc.
7132 593 457 Southwestern Bell Internet Se
7843 653 380 Adelphia Corp.
4323 551 379 Time Warner Communications, I
7018 1295 368 AT&T
1221 1213 326 Telstra Pty Ltd
7046 624 306 UUNET Technologies, Inc.
4151 305 289 USDA
852 724 274 Telus Advanced Communications
6347 350 274 SAVVIS Communications Corpora
4355 337 265 EarthLink, Inc.
18566 247 243 Covad Communications
1 670 238 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
1580 212 200 ANOSCEUR
4134 298 197 Data Communications Bureau
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 /14:234 /15:424 /16:7307 /17:1482 /18:2683
/19:7795 /20:7569 /21:5276 /22:7994 /23:9663 /24:63202
/25:202 /26:183 /27:101 /28:77 /29:39 /30:81
/31:0 /32:36
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 598 1011 Supernet, Inc.
702 542 891 UUNET - Commercial IP service
701 493 1785 UUNET Technologies, Inc.
690 469 523 Merit Network
7843 453 653 Adelphia Corp.
7066 388 489 Virginia Polytechnic Institut
7018 380 1295 AT&T
7046 302 624 UUNET Technologies, Inc.
6197 264 362 BellSouth Network Solutions,
6198 244 320 BellSouth Network Solutions,
18566 243 247 Covad Communications
3301 237 399 TeliaNet Sweden
1239 223 819 Sprint
3215 223 291 France Telecom Transpac
1580 199 212 ANOSCEUR
4355 194 337 EarthLink, Inc.
4323 190 551 Time Warner Communications, I
209 187 508 Qwest
5400 186 212 BT Ignite European Backbone
11492 185 189 Cable One
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:1 4:3 12:541 13:10 15:2 17:6
20:4 24:830 25:1 32:41 38:9 40:6
44:1 57:14 61:321 62:246 63:1858 64:1230
65:1438 66:1015 67:95 68:86 80:262 81:45
128:65 129:157 130:20 131:55 132:11 133:2
134:124 135:9 136:499 137:96 138:147 139:63
140:188 141:66 142:68 143:48 144:140 145:17
146:248 147:143 148:245 149:79 150:41 151:58
152:267 153:37 154:11 155:116 156:71 157:112
158:67 159:135 160:18 161:74 162:124 163:87
164:263 165:130 166:103 167:265 168:285 169:60
170:191 171:3 192:5461 193:2364 194:2071 195:805
196:414 198:3677 199:3132 200:2601 202:3314 203:4717
204:3261 205:2151 206:2507 207:2503 208:2592 209:2695
210:621 211:238 212:877 213:726 214:8 215:19
216:2847 217:493 218:34 219:1
End of report
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