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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 Mon 15 Jul, 2002
Analysis Summary
----------------
BGP routing table entries examined: 113845
Prefixes after maximum aggregation: 73623
Unique aggregates announced to Internet: 54507
Total ASes present in the Internet Routing Table: 13331
Origin-only ASes present in the Internet Routing Table: 11538
Origin ASes announcing only one prefix: 5103
Transit ASes present in the Internet Routing Table: 1793
Transit-only ASes present in the Internet Routing Table: 51
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 22
Illegal AS announcements present in the Routing Table: 12
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 35
Number of addresses announced to Internet: 1176663096
Equivalent to 70 /8s, 34 /16s and 116 /24s
Percentage of available address space announced: 31.7
Percentage of allocated address space announced: 58.7
Percentage of available address space allocated: 54.1
Total number of prefixes smaller than registry allocations: 46051
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18694
Total APNIC prefixes after maximum aggregation: 11129
Prefixes being announced from the APNIC address blocks: 17204
Unique aggregates announced from the APNIC address blocks: 10524
APNIC Region origin ASes present in the Internet Routing Table: 1557
APNIC Region origin ASes announcing only one prefix: 504
APNIC Region transit ASes present in the Internet Routing Table: 279
Average APNIC Region AS path length visible: 5.2
Max APNIC Region AS path length visible: 13
Number of APNIC addresses announced to Internet: 88756640
Equivalent to 5 /8s, 74 /16s and 81 /24s
Percentage of available APNIC address space announced: 58.4
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: 75783
Total ARIN prefixes after maximum aggregation: 47983
Prefixes being announced from the ARIN address blocks: 53860
Unique aggregates announced from the ARIN address blocks: 18021
ARIN Region origin ASes present in the Internet Routing Table: 7846
ARIN Region origin ASes announcing only one prefix: 2507
ARIN Region transit ASes present in the Internet Routing Table: 772
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 189485136
Equivalent to 11 /8s, 75 /16s and 80 /24s
Percentage of available ARIN address space announced: 70.6
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: 19357
Total RIPE prefixes after maximum aggregation: 14511
Prefixes being announced from the RIPE address blocks: 16075
Unique aggregates announced from the RIPE address blocks: 10444
RIPE Region origin ASes present in the Internet Routing Table: 3879
RIPE Region origin ASes announcing only one prefix: 2092
RIPE Region transit ASes present in the Internet Routing Table: 721
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 112620576
Equivalent to 6 /8s, 182 /16s and 116 /24s
Percentage of available RIPE address space announced: 74.6
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 1259 1207 900 Telstra Pty Ltd
4538 471 1258 18 China Education and Research
703 408 358 324 UUNET Technologies, Inc.
2907 364 1865 339 SINET Japan
2764 361 358 332 connect.com.au pty ltd
7474 316 292 211 Optus Communications Pty Ltd
17557 307 20 109 Pakistan Telecom
4755 293 116 79 Videsh Sanchar Nigam Ltd. Aut
4134 290 2112 106 Data Communications Bureau
9443 253 45 67 Primus Telecommunications
4766 248 1506 155 Korea Internet Exchange for "
4814 212 79 14 China Telecom (Group) - Beiji
9583 181 32 5 Satyam Infoway Ltd.,
17676 160 2482 27 XTAGE CORPORATION
9768 143 384 73 Korea Telecom
7657 129 22 87 The Internet Group Limited
7539 126 186 125 TANet2, sponsored by NSC, TAI
9800 125 191 18 CHINA UNICOM
4780 123 186 39 Digital United Inc.
4713 115 1009 106 NTT Communications Corporatio
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 931 2426 772 UUNET Technologies, Inc.
3301 395 924 345 TeliaNet Sweden
5515 314 783 174 Sonera Finland Autonomous Sys
3352 277 535 29 Ibernet, Internet Access Netw
3215 266 628 166 France Telecom / &Equant
3320 258 1960 197 Deutsche Telekom AG
680 233 2149 230 DFN-IP service G-WiN
1257 206 430 203 SWIPnet Swedish IP Network
5400 205 83 94 Concert European Core Network
719 189 306 128 LANLINK autonomous system
786 177 1873 177 The JANET IP Service
8708 140 23 137 Romania Data Systems S.A.
3303 137 547 136 Swisscom Ltd
2856 128 787 118 BTnet UK Regional network
12302 122 17 34 MobiFon S.A.
3269 113 690 68 TELECOM ITALIA
3246 112 317 107 Song Networks / Clinet
5511 109 192 87 France Telecom
3233 106 10 9 RNC - Romanian Natioanal R&D
2874 102 85 39 Global One Services AB
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1853 9240 1379 UUNET Technologies, Inc.
7018 1296 7433 942 AT&T
3908 926 1643 502 Supernet, Inc.
1239 818 3258 641 Sprint
852 757 1175 453 Telus Advanced Communications
1 698 8075 447 GENUITY
7843 644 360 237 Adelphia Corp.
4323 626 438 257 Time Warner Communications, I
7132 582 659 133 Southwestern Bell Internet Se
7046 558 888 355 UUNET Technologies, Inc.
209 537 2010 350 Qwest
690 515 74 327 Merit Network
7066 483 203 253 Virginia Polytechnic Institut
7029 463 165 56 Alltel Information Services,
3549 440 839 317 Global Crossing
2914 408 2100 385 Verio, Inc.
2149 384 171 285 Performance Systems, Inc.
15290 379 297 194 AT&T Canada IES
6197 371 547 36 BellSouth Network Solutions,
6347 343 370 77 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 471 453 China Education and Research
7132 582 449 Southwestern Bell Internet Se
3908 926 424 Supernet, Inc.
7843 644 407 Adelphia Corp.
7029 463 407 Alltel Information Services,
4323 626 369 Time Warner Communications, I
1221 1259 359 Telstra Pty Ltd
7018 1296 354 AT&T
6197 371 335 BellSouth Network Solutions,
852 757 304 Telus Advanced Communications
11371 292 286 Rhythms NetConnections
4151 287 271 USDA
6347 343 266 SAVVIS Communications Corpora
4355 308 256 EarthLink, Inc.
1 698 251 GENUITY
3352 277 248 Ibernet, Internet Access Netw
7066 483 230 Virginia Polytechnic Institut
18566 229 225 Covad Communications
4755 293 214 Videsh Sanchar Nigam Ltd. Aut
7303 275 211 Telecom Argentina Stet-France
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
55000 RESERVED 81.5.64.0/20 5467 MIPT-NET
65501 PRIVATE 200.73.24.0/24 18747 IFX Communication Ve
65501 PRIVATE 200.73.25.0/24 18747 IFX Communication Ve
65501 PRIVATE 200.73.26.0/24 18747 IFX Communication Ve
65501 PRIVATE 200.73.27.0/24 18747 IFX Communication Ve
65003 PRIVATE 202.92.84.0/24 9837 Powertel Ltd
65003 PRIVATE 202.92.84.0/22 9837 Powertel Ltd
65003 PRIVATE 202.92.85.0/24 9837 Powertel Ltd
65003 PRIVATE 202.92.119.0/24 9837 Powertel Ltd
65003 PRIVATE 203.56.32.0/24 9837 Powertel Ltd
65003 PRIVATE 203.56.33.0/24 9837 Powertel Ltd
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
192.44.0.0/19 702 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
/13:87 /14:234 /15:416 /16:7250 /17:1455 /18:2658
/19:7687 /20:7357 /21:5167 /22:7933 /23:9667 /24:63191
/25:203 /26:167 /27:84 /28:68 /29:47 /30:74
/31:0 /32:21
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 572 931 UUNET Technologies, Inc.
3908 513 926 Supernet, Inc.
701 507 1853 UUNET Technologies, Inc.
690 457 515 Merit Network
7843 450 644 Adelphia Corp.
7066 387 483 Virginia Polytechnic Institut
7029 366 463 Alltel Information Services,
7018 350 1296 AT&T
6197 256 371 BellSouth Network Solutions,
11371 245 292 Rhythms NetConnections
6198 238 310 BellSouth Network Solutions,
3301 233 395 TeliaNet Sweden
18566 225 229 Covad Communications
1239 212 818 Sprint
7046 212 558 UUNET Technologies, Inc.
209 210 537 Qwest
1580 201 214 HQ, 5th Signal Command
3352 201 277 Ibernet, Internet Access Netw
3215 199 266 France Telecom / &Equant
1 191 698 GENUITY
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:504 13:10 15:2 17:6
20:3 24:754 25:1 32:41 38:9 40:6
44:1 57:13 61:278 62:224 63:1883 64:1267
65:1385 66:990 67:91 68:64 80:233 81:33
128:63 129:133 130:22 131:53 132:11 133:2
134:125 135:8 136:243 137:95 138:153 139:70
140:164 141:123 142:78 143:39 144:150 145:14
146:187 147:137 148:242 149:84 150:41 151:67
152:264 153:34 154:14 155:113 156:67 157:127
158:70 159:135 160:18 161:70 162:214 163:94
164:262 165:133 166:222 167:172 168:291 169:60
170:250 171:3 192:5458 193:2385 194:2118 195:906
196:411 198:3639 199:3199 200:2600 202:3305 203:4702
204:3272 205:2179 206:2688 207:2537 208:2631 209:2664
210:601 211:230 212:916 213:657 214:9 215:19
216:2847 217:471 218:28
End of report
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