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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 26 Jun, 2002
Analysis Summary
----------------
BGP routing table entries examined: 117110
Prefixes after maximum aggregation: 75684
Unique aggregates announced to Internet: 54472
Total ASes present in the Internet Routing Table: 13287
Origin-only ASes present in the Internet Routing Table: 11509
Origin ASes announcing only one prefix: 5083
Transit ASes present in the Internet Routing Table: 1778
Transit-only ASes present in the Internet Routing Table: 49
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 17
Illegal AS announcements present in the Routing Table: 3
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 36
Number of addresses announced to Internet: 1174629852
Equivalent to 70 /8s, 3 /16s and 109 /24s
Percentage of available address space announced: 31.7
Percentage of allocated address space announced: 59.1
Percentage of available address space allocated: 53.7
Total number of prefixes smaller than registry allocations: 49066
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18520
Total APNIC prefixes after maximum aggregation: 11055
Prefixes being announced from the APNIC address blocks: 17035
Unique aggregates announced from the APNIC address blocks: 10453
APNIC Region origin ASes present in the Internet Routing Table: 1548
APNIC Region origin ASes announcing only one prefix: 503
APNIC Region transit ASes present in the Internet Routing Table: 272
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 87455328
Equivalent to 5 /8s, 54 /16s and 118 /24s
Percentage of available APNIC address space announced: 64.7
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: 79443
Total ARIN prefixes after maximum aggregation: 50068
Prefixes being announced from the ARIN address blocks: 54857
Unique aggregates announced from the ARIN address blocks: 17889
ARIN Region origin ASes present in the Internet Routing Table: 7829
ARIN Region origin ASes announcing only one prefix: 2503
ARIN Region transit ASes present in the Internet Routing Table: 771
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 188892500
Equivalent to 11 /8s, 66 /16s and 69 /24s
Percentage of available ARIN address space announced: 70.4
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: 19146
Total RIPE prefixes after maximum aggregation: 14561
Prefixes being announced from the RIPE address blocks: 15852
Unique aggregates announced from the RIPE address blocks: 10538
RIPE Region origin ASes present in the Internet Routing Table: 3862
RIPE Region origin ASes announcing only one prefix: 2077
RIPE Region transit ASes present in the Internet Routing Table: 718
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 111839776
Equivalent to 6 /8s, 170 /16s and 138 /24s
Percentage of available RIPE address space announced: 74.1
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 1263 1222 905 Telstra Pty Ltd
4538 442 1194 16 China Education and Research
703 403 356 321 UUNET Technologies, Inc.
2907 384 1876 358 SINET Japan
2764 369 359 338 connect.com.au pty ltd
7474 313 292 208 Optus Communications Pty Ltd
17557 302 20 114 Pakistan Telecom
4755 295 117 83 Videsh Sanchar Nigam Ltd. Aut
4134 288 2114 105 Data Communications Bureau
9443 250 45 67 Primus Telecommunications
4766 216 1504 154 Korea Internet Exchange for "
4814 197 79 14 China Telecom (Group) - Beiji
4713 186 1009 106 NTT Communications Corporatio
9583 174 32 5 Satyam Infoway Ltd.,
17676 151 2338 22 XTAGE CORPORATION
9768 146 386 75 Korea Telecom
7657 139 22 88 The Internet Group Limited
9800 124 191 24 CHINA UNICOM
4780 115 186 39 Digital United Inc.
4621 111 11 60 UNINET-TH
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1021 2617 844 UUNET Technologies, Inc.
3301 402 925 351 TeliaNet Sweden
3352 275 534 25 Ibernet, Internet Access Netw
3215 263 598 162 France Telecom / &Equant
3320 234 1962 187 Deutsche Telekom AG
680 233 2149 230 DFN-IP service G-WiN
5515 206 783 172 Sonera Finland Autonomous Sys
1257 204 430 201 SWIPnet Swedish IP Network
5400 204 83 94 Concert European Core Network
719 192 306 130 LANLINK autonomous system
786 178 1873 177 The JANET IP Service
8708 141 23 138 Romania Data Systems S.A.
3303 134 546 133 Swisscom Ltd
12302 127 18 34 MobiFon S.A.
2856 125 786 115 BTnet UK Regional network
3246 110 301 105 Song Networks / Clinet
3269 110 688 67 TELECOM ITALIA
8297 108 52 60 Teleglobe Autonomous System i
3233 102 6 56 RNC - Romanian Natioanal R&D
2874 98 85 38 Global One Services AB
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2149 2867 349 2319 Performance Systems, Inc.
701 2008 9274 1397 UUNET Technologies, Inc.
7018 1293 7438 930 AT&T
3908 914 1642 496 Supernet, Inc.
1239 823 3363 649 Sprint
705 815 189 282 UUNET Technologies, Inc.
1 694 8099 445 GENUITY
852 673 1173 448 Telus Advanced Communications
4323 632 438 259 Time Warner Communications, I
209 610 1959 342 Qwest
7843 598 353 249 Adelphia Corp.
7046 594 860 381 UUNET Technologies, Inc.
690 588 81 370 Merit Network
174 584 4608 37 PSINet Inc.
7132 578 659 134 Southwestern Bell Internet Se
7066 470 202 249 Virginia Polytechnic Institut
3549 444 836 318 Global Crossing
2914 392 2100 384 Verio, Inc.
15290 383 299 197 AT&T Canada IES
6197 346 248 168 BellSouth Network Solutions,
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
701 2008 611 UUNET Technologies, Inc.
174 584 547 PSINet Inc.
705 815 533 UUNET Technologies, Inc.
7132 578 444 Southwestern Bell Internet Se
4538 442 426 China Education and Research
3908 914 418 Supernet, Inc.
4323 632 373 Time Warner Communications, I
7018 1293 363 AT&T
1221 1263 358 Telstra Pty Ltd
7843 598 349 Adelphia Corp.
11371 292 286 Rhythms NetConnections
4151 288 272 USDA
209 610 268 Qwest
6347 342 263 SAVVIS Communications Corpora
3352 275 250 Ibernet, Internet Access Netw
1 694 249 GENUITY
4355 301 248 EarthLink, Inc.
7029 263 248 Alltel Information Services,
4454 249 226 OIR Telecommunications, State
852 673 225 Telus Advanced Communications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
13136 UNALLOCATED 80.85.128.0/20 16243 Virtu Secure Webserv
55000 RESERVED 81.5.64.0/20 5467 MIPT-NET
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
192.5.154.0/24 16588 Spider Web Hosting Solutions
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.
192.83.16.0/20 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 /8:18 /9:6 /10:7 /11:12 /12:36
/13:90 /14:236 /15:420 /16:7254 /17:1459 /18:2634
/19:7683 /20:7290 /21:5116 /22:7873 /23:9601 /24:66682
/25:192 /26:170 /27:82 /28:86 /29:47 /30:89
/31:0 /32:27
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
2149 2329 2867 Performance Systems, Inc.
702 628 1021 UUNET Technologies, Inc.
705 609 815 UUNET Technologies, Inc.
701 570 2008 UUNET Technologies, Inc.
3908 501 914 Supernet, Inc.
174 488 584 PSINet Inc.
690 466 588 Merit Network
7843 409 598 Adelphia Corp.
7066 375 470 Virginia Polytechnic Institut
7018 351 1293 AT&T
209 275 610 Qwest
6197 249 346 BellSouth Network Solutions,
7029 248 263 Alltel Information Services,
11371 245 292 Rhythms NetConnections
3301 238 402 TeliaNet Sweden
7046 237 594 UUNET Technologies, Inc.
6198 235 322 BellSouth Network Solutions,
18566 223 227 Covad Communications
6517 214 236 Yipes Communications, Inc.
1239 211 823 Sprint
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:510 13:10 15:2 17:6
20:2 24:796 25:1 32:41 38:2658 40:6
44:1 57:13 61:267 62:216 63:1915 64:1243
65:1669 66:998 67:87 68:188 80:254 81:29
128:60 129:133 130:22 131:48 132:11 133:3
134:121 135:8 136:245 137:93 138:150 139:70
140:143 141:120 142:83 143:39 144:153 145:14
146:174 147:138 148:218 149:91 150:40 151:67
152:264 153:32 154:19 155:108 156:77 157:127
158:70 159:127 160:18 161:69 162:214 163:103
164:274 165:133 166:229 167:172 168:127 169:60
170:357 171:3 192:5482 193:2354 194:2063 195:940
196:395 198:3685 199:3237 200:2547 202:3255 203:4671
204:3438 205:2199 206:2773 207:2672 208:2683 209:2675
210:584 211:226 212:889 213:635 214:9 215:19
216:2966 217:458 218:43 219:41
End of report
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