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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 Sun 09 Jun, 2002
Analysis Summary
----------------
BGP routing table entries examined: 113178
Prefixes after maximum aggregation: 73236
Unique aggregates announced to Internet: 52537
Total ASes present in the Internet Routing Table: 13200
Origin-only ASes present in the Internet Routing Table: 11442
Origin ASes announcing only one prefix: 5026
Transit ASes present in the Internet Routing Table: 1758
Transit-only ASes present in the Internet Routing Table: 55
Average AS path length visible in the Internet Routing Table: 5.3
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: 1196783308
Equivalent to 71 /8s, 85 /16s and 118 /24s
Percentage of available address space announced: 32.3
Percentage of allocated address space announced: 60.2
Percentage of available address space allocated: 53.7
Total number of prefixes smaller than registry allocations: 46109
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 17847
Total APNIC prefixes after maximum aggregation: 10984
Prefixes being announced from the APNIC address blocks: 16309
Unique aggregates announced from the APNIC address blocks: 9802
APNIC Region origin ASes present in the Internet Routing Table: 1527
APNIC Region origin ASes announcing only one prefix: 501
APNIC Region transit ASes present in the Internet Routing Table: 269
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 90141280
Equivalent to 5 /8s, 95 /16s and 114 /24s
Percentage of available APNIC address space announced: 66.6
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: 76093
Total ARIN prefixes after maximum aggregation: 47761
Prefixes being announced from the ARIN address blocks: 54270
Unique aggregates announced from the ARIN address blocks: 16649
ARIN Region origin ASes present in the Internet Routing Table: 7785
ARIN Region origin ASes announcing only one prefix: 2474
ARIN Region transit ASes present in the Internet Routing Table: 765
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 193215300
Equivalent to 11 /8s, 132 /16s and 59 /24s
Percentage of available ARIN address space announced: 72.0
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, 68/8, 199/8, 200/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 19238
Total RIPE prefixes after maximum aggregation: 14491
Prefixes being announced from the RIPE address blocks: 15915
Unique aggregates announced from the RIPE address blocks: 10525
RIPE Region origin ASes present in the Internet Routing Table: 3833
RIPE Region origin ASes announcing only one prefix: 2051
RIPE Region transit ASes present in the Internet Routing Table: 706
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 110266656
Equivalent to 6 /8s, 146 /16s and 137 /24s
Percentage of available RIPE address space announced: 73.0
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 1260 1222 903 Telstra Pty Ltd
703 410 350 328 UUNET Technologies, Inc.
2907 387 1876 360 SINET Japan
2764 378 359 344 connect.com.au pty ltd
7474 309 292 204 Optus Communications Pty Ltd
17557 297 20 108 Pakistan Telecom
4134 288 2130 104 Data Communications Bureau
4755 271 114 77 Videsh Sanchar Nigam Ltd. Aut
9443 226 44 57 Primus Telecommunications
4766 225 1516 156 Korea Internet Exchange for "
4814 184 71 14 China Telecom (Group) - Beiji
4713 183 1009 106 NTT Communications Corporatio
9583 172 32 5 Satyam Infoway Ltd.,
7539 154 203 149 TANet2, sponsored by NSC, TAI
9768 147 387 76 Korea Telecom
17676 146 2258 23 XTAGE CORPORATION
7657 136 22 86 The Internet Group Limited
4780 116 186 39 Digital United Inc.
4621 108 11 60 UNINET-TH
4739 108 56 100 Commerical Internet eXchange
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1025 2621 850 UUNET Technologies, Inc.
3301 397 908 348 TeliaNet Sweden
5515 286 783 176 Sonera Finland Autonomous Sys
3352 275 537 27 Ibernet, Internet Access Netw
3215 262 598 162 France Telecom / &Equant
680 233 2149 230 DFN-IP service G-WiN
3320 230 1946 183 Deutsche Telekom AG
1257 204 430 201 SWIPnet Swedish IP Network
5400 203 83 94 Concert European Core Network
719 190 290 128 LANLINK autonomous system
786 179 1873 178 The JANET IP Service
8708 145 23 138 Romania Data Systems S.A.
2856 125 789 115 BTnet UK Regional network
12302 124 10 31 MobiFon S.A.
3303 118 546 117 Swisscom Ltd
8297 114 57 65 Teleglobe Autonomous System i
3269 113 692 70 TELECOM ITALIA
3246 107 300 101 Song Networks / Clinet
3233 102 6 56 RNC - Romanian Natioanal R&D
2830 98 243 74 UUNET Dual-Homed customers
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2016 9101 1420 UUNET Technologies, Inc.
7018 1290 7548 936 AT&T
3908 904 1642 493 Supernet, Inc.
1239 819 3415 652 Sprint
1 797 8148 446 GENUITY
705 797 180 274 UUNET Technologies, Inc.
852 797 1191 446 Telus Advanced Communications
4323 628 436 258 Time Warner Communications, I
7046 628 900 421 UUNET Technologies, Inc.
209 603 1973 337 Qwest
690 584 80 372 Merit Network
7132 572 609 136 Southwestern Bell Internet Se
7843 511 363 78 Adelphia Corp.
3549 496 857 323 Global Crossing
7066 476 202 249 Virginia Polytechnic Institut
2914 395 2108 388 Verio, Inc.
15290 387 299 201 AT&T Canada IES
3741 344 731 236 The Internet Solution
6197 344 246 169 BellSouth Network Solutions,
6347 340 370 78 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
705 797 523 UUNET Technologies, Inc.
7132 572 436 Southwestern Bell Internet Se
7843 511 433 Adelphia Corp.
3908 904 411 Supernet, Inc.
4323 628 370 Time Warner Communications, I
1221 1260 357 Telstra Pty Ltd
7018 1290 354 AT&T
1 797 351 GENUITY
852 797 351 Telus Advanced Communications
11371 292 286 Rhythms NetConnections
4151 286 270 USDA
209 603 266 Qwest
6347 340 262 SAVVIS Communications Corpora
3352 275 248 Ibernet, Internet Access Netw
7029 263 248 Alltel Information Services,
4355 284 242 EarthLink, Inc.
7066 476 227 Virginia Polytechnic Institut
18566 223 219 Covad Communications
4454 239 216 OIR Telecommunications, State
6198 320 215 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 GENUITY
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
/13:86 /14:233 /15:415 /16:7176 /17:1437 /18:2589
/19:7588 /20:7027 /21:4996 /22:7755 /23:9512 /24:63554
/25:211 /26:191 /27:80 /28:82 /29:48 /30:81
/31:1 /32:36
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 630 1025 UUNET Technologies, Inc.
705 593 797 UUNET Technologies, Inc.
701 567 2016 UUNET Technologies, Inc.
3908 491 904 Supernet, Inc.
690 462 584 Merit Network
7066 381 476 Virginia Polytechnic Institut
7018 339 1290 AT&T
7843 308 511 Adelphia Corp.
209 271 603 Qwest
7046 269 628 UUNET Technologies, Inc.
1 259 797 GENUITY
7029 248 263 Alltel Information Services,
6197 247 344 BellSouth Network Solutions,
11371 245 292 Rhythms NetConnections
3301 238 397 TeliaNet Sweden
6198 233 320 BellSouth Network Solutions,
18566 219 223 Covad Communications
6517 215 236 Yipes Communications, Inc.
1239 210 819 Sprint
1580 203 233 HQ, 5th Signal Command
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:512 13:10 15:2 17:6
20:2 24:780 25:1 32:41 38:8 40:6
44:1 57:13 61:255 62:200 63:1944 64:1241
65:1629 66:938 67:85 68:163 80:234 81:28
128:61 129:136 130:24 131:48 132:11 133:3
134:119 135:8 136:243 137:91 138:150 139:58
140:174 141:120 142:82 143:37 144:151 145:13
146:174 147:139 148:204 149:92 150:40 151:97
152:272 153:34 154:14 155:99 156:76 157:126
158:69 159:127 160:17 161:69 162:154 163:97
164:272 165:131 166:229 167:172 168:124 169:58
170:356 171:2 192:5496 193:2388 194:2106 195:948
196:434 198:3706 199:3232 200:2534 202:3184 203:4556
204:3271 205:2179 206:2566 207:2711 208:2669 209:2742
210:589 211:225 212:911 213:640 214:9 215:19
216:3024 217:458 218:40 219:41
End of report
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