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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 01 Jun, 2002
Analysis Summary
----------------
BGP routing table entries examined: 113143
Prefixes after maximum aggregation: 73230
Unique aggregates announced to Internet: 52634
Total ASes present in the Internet Routing Table: 13158
Origin-only ASes present in the Internet Routing Table: 11420
Origin ASes announcing only one prefix: 5015
Transit ASes present in the Internet Routing Table: 1738
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: 18
Illegal AS announcements present in the Routing Table: 1
Non-routable prefixes present in the Routing Table: 1
Prefixes being announced from the IANA Reserved Address blocks: 38
Number of addresses announced to Internet: 1182873676
Equivalent to 70 /8s, 129 /16s and 56 /24s
Percentage of available address space announced: 31.9
Percentage of allocated address space announced: 59.5
Percentage of available address space allocated: 53.7
Total number of prefixes smaller than registry allocations: 45816
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18147
Total APNIC prefixes after maximum aggregation: 10960
Prefixes being announced from the APNIC address blocks: 16620
Unique aggregates announced from the APNIC address blocks: 9822
APNIC Region origin ASes present in the Internet Routing Table: 1518
APNIC Region origin ASes announcing only one prefix: 499
APNIC Region transit ASes present in the Internet Routing Table: 268
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 13
Number of APNIC addresses announced to Internet: 89831776
Equivalent to 5 /8s, 90 /16s and 185 /24s
Percentage of available APNIC address space announced: 66.4
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 220/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 75735
Total ARIN prefixes after maximum aggregation: 47792
Prefixes being announced from the ARIN address blocks: 53901
Unique aggregates announced from the ARIN address blocks: 16440
ARIN Region origin ASes present in the Internet Routing Table: 7773
ARIN Region origin ASes announcing only one prefix: 2469
ARIN Region transit ASes present in the Internet Routing Table: 759
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 196745412
Equivalent to 11 /8s, 186 /16s and 24 /24s
Percentage of available ARIN address space announced: 73.3
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: 19261
Total RIPE prefixes after maximum aggregation: 14478
Prefixes being announced from the RIPE address blocks: 15936
Unique aggregates announced from the RIPE address blocks: 10532
RIPE Region origin ASes present in the Internet Routing Table: 3813
RIPE Region origin ASes announcing only one prefix: 2047
RIPE Region transit ASes present in the Internet Routing Table: 694
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 110042400
Equivalent to 6 /8s, 143 /16s and 29 /24s
Percentage of available RIPE address space announced: 72.9
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 1268 1223 911 Telstra Pty Ltd
4538 478 1258 18 China Education and Research
2907 427 1861 368 SINET Japan
703 406 339 326 UUNET Technologies, Inc.
2764 393 360 358 connect.com.au pty ltd
7474 308 292 204 Optus Communications Pty Ltd
17557 289 19 108 Pakistan Telecom
4134 277 2100 94 Data Communications Bureau
9443 266 44 63 Primus Telecommunications
4755 247 107 78 Videsh Sanchar Nigam Ltd. Aut
4766 227 1517 158 Korea Internet Exchange for "
4814 178 70 12 China Telecom (Group) - Beiji
9583 177 32 5 Satyam Infoway Ltd.,
7539 156 220 150 TANet2, sponsored by NSC, TAI
9768 147 387 76 Korea Telecom
17676 144 2226 22 XTAGE CORPORATION
7657 136 22 86 The Internet Group Limited
4780 116 186 39 Digital United Inc.
4713 115 1009 106 NTT Communications Corporatio
9800 114 186 22 CHINA UNICOM
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1015 2603 843 UUNET Technologies, Inc.
3301 398 908 349 TeliaNet Sweden
3352 278 521 27 Ibernet, Internet Access Netw
5515 266 783 176 Sonera Finland Autonomous Sys
3215 265 599 165 France Telecom / &Equant
3320 236 1947 181 Deutsche Telekom AG
680 231 2149 230 DFN-IP service G-WiN
1257 205 430 202 SWIPnet Swedish IP Network
5400 201 83 95 Concert European Core Network
719 187 290 126 LANLINK autonomous system
786 183 1874 182 The JANET IP Service
8708 147 23 140 Romania Data Systems S.A.
12302 133 10 46 MobiFon S.A.
2856 125 789 115 BTnet UK Regional network
3303 117 546 116 Swisscom Ltd
8297 114 57 65 Teleglobe Autonomous System i
3269 113 692 70 TELECOM ITALIA
3233 108 7 50 RNC - Romanian Natioanal R&D
3246 107 300 101 Song Networks / Clinet
5511 105 191 87 France Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2010 8914 1441 UUNET Technologies, Inc.
7018 1288 7563 931 AT&T
3908 904 1641 492 Supernet, Inc.
1239 824 3438 653 Sprint
1 814 8168 453 BBN Planet
852 796 1175 446 Telus Advanced Communications
7046 644 918 434 UUNET Technologies, Inc.
4323 627 436 257 Time Warner Communications, I
209 585 1969 326 Qwest
690 577 78 376 Merit Network
7132 570 606 138 Southwestern Bell Internet Se
705 543 119 265 UUNET Technologies, Inc.
3549 518 854 323 Global Crossing
7843 500 357 70 Adelphia Corp.
7066 475 202 248 Virginia Polytechnic Institut
2914 396 2108 389 Verio, Inc.
15290 391 299 204 AT&T Canada IES
2149 345 191 286 Performance Systems, Inc.
3741 345 731 236 The Internet Solution
6197 340 245 164 BellSouth Network Solutions,
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 478 460 China Education and Research
7132 570 432 Southwestern Bell Internet Se
7843 500 430 Adelphia Corp.
3908 904 412 Supernet, Inc.
4323 627 370 Time Warner Communications, I
1 814 361 BBN Planet
7018 1288 357 AT&T
1221 1268 357 Telstra Pty Ltd
852 796 350 Telus Advanced Communications
11371 292 286 Rhythms NetConnections
705 543 278 UUNET Technologies, Inc.
4151 288 272 USDA
209 585 259 Qwest
6347 337 258 SAVVIS Communications Corpora
3352 278 251 Ibernet, Internet Access Netw
7029 262 247 Alltel Information Services,
4355 282 244 EarthLink, Inc.
7066 475 227 Virginia Polytechnic Institut
18566 222 218 Covad Communications
6198 317 212 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,
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
192.0.2.0/24 1103 SURFnet BV
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 BBN Planet
154.150.0.0/16 6494 IDCI
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
192.26.98.0/24 1239 Sprint
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.
192.83.14.0/24 5515 Sonera Finland Autonomous Sys
192.83.16.0/20 5515 Sonera Finland Autonomous Sys
192.83.25.0/24 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 /8:21 /9:6 /10:7 /11:12 /12:34
/13:85 /14:232 /15:414 /16:7225 /17:1437 /18:2593
/19:7575 /20:7172 /21:5101 /22:7788 /23:9487 /24:63224
/25:211 /26:186 /27:82 /28:87 /29:46 /30:89
/31:1 /32:28
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 621 1015 UUNET Technologies, Inc.
701 559 2010 UUNET Technologies, Inc.
3908 491 904 Supernet, Inc.
690 449 577 Merit Network
7066 380 475 Virginia Polytechnic Institut
705 353 543 UUNET Technologies, Inc.
7018 338 1288 AT&T
7843 300 500 Adelphia Corp.
7046 282 644 UUNET Technologies, Inc.
209 264 585 Qwest
1 256 814 BBN Planet
7029 247 262 Alltel Information Services,
6197 245 340 BellSouth Network Solutions,
11371 245 292 Rhythms NetConnections
3301 238 398 TeliaNet Sweden
6198 231 317 BellSouth Network Solutions,
6517 222 244 Yipes Communications, Inc.
18566 218 222 Covad Communications
3549 215 518 Global Crossing
1239 211 824 Sprint
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:511 13:10 15:2 17:6
20:2 24:779 25:1 32:40 38:8 40:6
44:1 57:13 61:234 62:199 63:1935 64:1227
65:1503 66:910 67:80 68:18 80:231 81:24
128:61 129:138 130:23 131:47 132:11 133:3
134:118 135:8 136:246 137:91 138:150 139:57
140:174 141:119 142:77 143:38 144:152 145:11
146:174 147:136 148:202 149:92 150:40 151:97
152:266 153:33 154:14 155:105 156:75 157:132
158:69 159:128 160:18 161:62 162:147 163:100
164:273 165:140 166:229 167:174 168:118 169:58
170:352 171:2 192:5496 193:2391 194:2135 195:966
196:437 198:3718 199:3234 200:2572 202:3142 203:4573
204:3260 205:2167 206:2592 207:2722 208:2662 209:2745
210:598 211:224 212:943 213:622 214:9 215:19
216:3014 217:455 218:24
End of report
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