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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 10 Aug, 2002
Analysis Summary
----------------
BGP routing table entries examined: 114824
Prefixes after maximum aggregation: 73924
Unique aggregates announced to Internet: 54827
Total ASes present in the Internet Routing Table: 13518
Origin-only ASes present in the Internet Routing Table: 11690
Origin ASes announcing only one prefix: 5193
Transit ASes present in the Internet Routing Table: 1828
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: 20
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: 33
Number of addresses announced to Internet: 1196647221
Equivalent to 71 /8s, 83 /16s and 99 /24s
Percentage of available address space announced: 32.3
Percentage of allocated address space announced: 59.2
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 46733
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18893
Total APNIC prefixes after maximum aggregation: 11206
Prefixes being announced from the APNIC address blocks: 17405
Unique aggregates announced from the APNIC address blocks: 10624
APNIC Region origin ASes present in the Internet Routing Table: 1581
APNIC Region origin ASes announcing only one prefix: 513
APNIC Region transit ASes present in the Internet Routing Table: 274
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 90963936
Equivalent to 5 /8s, 107 /16s and 255 /24s
Percentage of available APNIC address space announced: 59.8
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: 76567
Total ARIN prefixes after maximum aggregation: 48091
Prefixes being announced from the ARIN address blocks: 54117
Unique aggregates announced from the ARIN address blocks: 18158
ARIN Region origin ASes present in the Internet Routing Table: 7949
ARIN Region origin ASes announcing only one prefix: 2555
ARIN Region transit ASes present in the Internet Routing Table: 796
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 190404688
Equivalent to 11 /8s, 89 /16s and 88 /24s
Percentage of available ARIN address space announced: 66.8
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: 19362
Total RIPE prefixes after maximum aggregation: 14627
Prefixes being announced from the RIPE address blocks: 16027
Unique aggregates announced from the RIPE address blocks: 10526
RIPE Region origin ASes present in the Internet Routing Table: 3936
RIPE Region origin ASes announcing only one prefix: 2125
RIPE Region transit ASes present in the Internet Routing Table: 746
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 113214464
Equivalent to 6 /8s, 191 /16s and 132 /24s
Percentage of available RIPE address space announced: 75.0
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 1254 1193 893 Telstra Pty Ltd
4538 561 1279 27 China Education and Research
703 412 377 324 UUNET
2907 366 1848 344 SINET Japan
2764 359 358 330 connect.com.au pty ltd
7474 320 296 213 Optus Communications Pty Ltd
17557 297 20 94 Pakistan Telecom
4134 295 2182 104 Data Communications Bureau
4755 282 111 74 Videsh Sanchar Nigam Ltd. Aut
4766 249 1506 156 Korea Internet Exchange for "
4814 220 79 14 China Telecom (Group)
9583 180 32 5 Satyam Infoway Ltd.,
17676 180 2802 32 XTAGE CORPORATION
9443 169 45 68 Primus Telecommunications
7539 148 189 143 TANet2, sponsored by NSC, TAI
9768 144 385 74 Korea Telecom
7657 128 22 89 The Internet Group Limited
9800 125 191 18 CHINA UNICOM
4621 115 11 63 UNINET-TH
4713 115 1009 106 NTT Communications Corporatio
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 900 2418 755 UUNET - Commercial IP service
3301 394 923 344 TeliaNet Sweden
5515 320 783 180 Sonera Solution Autonomous Sy
3215 289 641 178 France Telecom Transpac
3320 251 1961 212 Deutsche Telekom AG
680 237 2150 234 DFN-IP service G-WiN
5400 211 85 100 BT Ignite European Backbone
1257 208 446 203 SWIPnet Swedish IP Network
719 182 306 128 LANLINK autonomous system
786 177 1873 177 The JANET IP Service
3303 142 548 141 Swisscom Ltd
8708 142 24 139 Romania Data Systems S.A.
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
3269 106 658 63 TELECOM ITALIA
3233 105 10 9 RNC - Romanian Natioanal R&D
2874 101 85 38 Global One Services AB
8297 94 46 51 BCE Teleglobe Canada Inc.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1793 9145 1361 UUNET Technologies, Inc.
7018 1316 7415 938 AT&T
3908 1010 1659 499 Supernet, Inc.
1239 812 3248 647 Sprint
852 754 1175 451 Telus Advanced Communications
1 680 8052 446 GENUITY
4323 639 442 263 Time Warner Communications, I
7843 627 366 225 Adelphia Corp.
7132 593 663 137 Southwestern Bell Internet Se
690 521 75 328 Merit Network
7046 514 886 316 UUNET Technologies, Inc.
209 503 2057 343 Qwest
7066 486 203 254 Virginia Polytechnic Institut
7029 451 164 54 Alltel Information Services,
3549 440 824 314 Global Crossing
6197 379 611 37 BellSouth Network Solutions,
15290 378 297 194 AT&T Canada IES
2914 366 2077 366 Verio, Inc.
6347 347 370 75 SAVVIS Communications Corpora
4355 335 278 71 EarthLink, Inc.
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 561 534 China Education and Research
3908 1010 511 Supernet, Inc.
7132 593 456 Southwestern Bell Internet Se
7843 627 402 Adelphia Corp.
7029 451 397 Alltel Information Services,
7018 1316 378 AT&T
4323 639 376 Time Warner Communications, I
1221 1254 361 Telstra Pty Ltd
6197 379 342 BellSouth Network Solutions,
852 754 303 Telus Advanced Communications
1657 281 279 University of Louisville
4151 290 274 USDA
6347 347 272 SAVVIS Communications Corpora
4355 335 264 EarthLink, Inc.
18566 240 236 Covad Communications
1 680 234 GENUITY
7066 486 232 Virginia Polytechnic Institut
376 329 224 Reseau Interordinateurs Scien
4755 282 208 Videsh Sanchar Nigam Ltd. Aut
7303 267 207 Telecom Argentina Stet-France
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
26705 UNALLOCATED 12.111.19.0/24 701 UUNET Technologies,
64511 RESERVED 147.73.0.0/16 5050 Pittsburgh Supercomp
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
192.139.62.0/24 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
192.195.253.0/24 237 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 /8:19 /9:8 /10:7 /11:12 /12:37
/13:84 /14:230 /15:417 /16:7294 /17:1468 /18:2690
/19:7780 /20:7570 /21:5278 /22:7974 /23:9687 /24:63432
/25:203 /26:180 /27:100 /28:94 /29:72 /30:112
/31:0 /32:76
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 595 1010 Supernet, Inc.
702 550 900 UUNET - Commercial IP service
701 487 1793 UUNET Technologies, Inc.
690 467 521 Merit Network
7843 426 627 Adelphia Corp.
7066 389 486 Virginia Polytechnic Institut
7018 379 1316 AT&T
7029 356 451 Alltel Information Services,
1657 280 281 University of Louisville
6197 264 379 BellSouth Network Solutions,
6198 243 316 BellSouth Network Solutions,
18566 236 240 Covad Communications
3301 234 394 TeliaNet Sweden
3215 221 289 France Telecom Transpac
1239 214 812 Sprint
1580 200 213 ANOSCEUR
4355 193 335 EarthLink, Inc.
7046 188 514 UUNET Technologies, Inc.
209 185 503 Qwest
4323 185 639 Time Warner Communications, I
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:1 4:3 12:535 13:10 15:2 17:6
20:3 24:708 25:1 32:41 38:9 40:6
44:1 57:14 61:324 62:245 63:1857 64:1232
65:1426 66:988 67:97 68:80 80:253 81:45
128:67 129:140 130:20 131:56 132:11 133:2
134:124 135:10 136:501 137:96 138:151 139:72
140:175 141:46 142:69 143:50 144:137 145:18
146:240 147:141 148:243 149:79 150:39 151:69
152:267 153:36 154:11 155:114 156:70 157:113
158:67 159:134 160:20 161:76 162:213 163:87
164:262 165:126 166:217 167:253 168:294 169:60
170:206 171:3 192:5462 193:2356 194:2063 195:805
196:415 198:3674 199:3161 200:2720 202:3331 203:4718
204:3259 205:2187 206:2532 207:2564 208:2604 209:2706
210:596 211:238 212:896 213:714 214:8 215:19
216:2831 217:470 218:31 219:1
End of report
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