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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 Tue 13 Aug, 2002
Analysis Summary
----------------
BGP routing table entries examined: 114843
Prefixes after maximum aggregation: 74118
Unique aggregates announced to Internet: 54918
Total ASes present in the Internet Routing Table: 13528
Origin-only ASes present in the Internet Routing Table: 11690
Origin ASes announcing only one prefix: 5199
Transit ASes present in the Internet Routing Table: 1838
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: 2
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: 1180706424
Equivalent to 70 /8s, 96 /16s and 38 /24s
Percentage of available address space announced: 31.9
Percentage of allocated address space announced: 58.4
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 46692
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18888
Total APNIC prefixes after maximum aggregation: 11217
Prefixes being announced from the APNIC address blocks: 17389
Unique aggregates announced from the APNIC address blocks: 10633
APNIC Region origin ASes present in the Internet Routing Table: 1581
APNIC Region origin ASes announcing only one prefix: 510
APNIC Region transit ASes present in the Internet Routing Table: 279
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 91105248
Equivalent to 5 /8s, 110 /16s and 39 /24s
Percentage of available APNIC address space announced: 59.9
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: 76644
Total ARIN prefixes after maximum aggregation: 48296
Prefixes being announced from the ARIN address blocks: 54271
Unique aggregates announced from the ARIN address blocks: 18148
ARIN Region origin ASes present in the Internet Routing Table: 7956
ARIN Region origin ASes announcing only one prefix: 2564
ARIN Region transit ASes present in the Internet Routing Table: 803
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 190421072
Equivalent to 11 /8s, 89 /16s and 152 /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: 19311
Total RIPE prefixes after maximum aggregation: 14605
Prefixes being announced from the RIPE address blocks: 16040
Unique aggregates announced from the RIPE address blocks: 10510
RIPE Region origin ASes present in the Internet Routing Table: 3937
RIPE Region origin ASes announcing only one prefix: 2125
RIPE Region transit ASes present in the Internet Routing Table: 742
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 113205504
Equivalent to 6 /8s, 191 /16s and 97 /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 1253 1191 892 Telstra Pty Ltd
4538 552 1279 27 China Education and Research
703 416 377 324 UUNET
2907 363 1816 341 SINET Japan
2764 359 358 330 connect.com.au pty ltd
7474 317 296 213 Optus Communications Pty Ltd
4134 294 2180 106 Data Communications Bureau
4755 280 111 74 Videsh Sanchar Nigam Ltd. Aut
17557 268 20 95 Pakistan Telecom
4766 249 1506 156 Korea Internet Exchange for "
4814 220 79 14 China Telecom (Group)
17676 181 2818 31 XTAGE CORPORATION
9583 174 32 5 Satyam Infoway Ltd.,
9443 169 45 68 Primus Telecommunications
7539 148 175 143 TANet2, sponsored by NSC, TAI
9768 144 385 74 Korea Telecom
7657 132 22 91 The Internet Group Limited
9800 121 187 23 CHINA UNICOM
4713 115 1009 106 NTT Communications Corporatio
4739 113 56 104 Commerical Internet eXchange
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 894 2415 749 UUNET - Commercial IP service
3301 396 923 346 TeliaNet Sweden
5515 320 783 180 Sonera Solution Autonomous Sy
3215 289 641 178 France Telecom Transpac
3320 257 1963 217 Deutsche Telekom AG
680 237 2150 234 DFN-IP service G-WiN
5400 211 85 100 BT Ignite European Backbone
1257 207 446 202 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 124 18 34 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 1360 UUNET Technologies, Inc.
7018 1307 7431 933 AT&T
3908 1017 1659 498 Supernet, Inc.
1239 815 3250 650 Sprint
852 753 1175 450 Telus Advanced Communications
1 671 8051 443 GENUITY
4323 639 442 263 Time Warner Communications, I
7843 624 366 229 Adelphia Corp.
7132 593 663 137 Southwestern Bell Internet Se
690 521 75 328 Merit Network
7046 514 886 316 UUNET Technologies, Inc.
209 505 2057 343 Qwest
7066 486 203 254 Virginia Polytechnic Institut
2548 468 1162 280 Business Internet, Inc.
7029 452 164 54 Alltel Information Services,
3549 440 825 315 Global Crossing
6197 379 611 37 BellSouth Network Solutions,
15290 378 297 194 AT&T Canada IES
2914 364 2077 364 Verio, Inc.
6347 348 370 75 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 552 525 China Education and Research
3908 1017 519 Supernet, Inc.
7132 593 456 Southwestern Bell Internet Se
7029 452 398 Alltel Information Services,
7843 624 395 Adelphia Corp.
4323 639 376 Time Warner Communications, I
7018 1307 374 AT&T
1221 1253 361 Telstra Pty Ltd
6197 379 342 BellSouth Network Solutions,
852 753 303 Telus Advanced Communications
4151 290 274 USDA
6347 348 273 SAVVIS Communications Corpora
4355 332 261 EarthLink, Inc.
18566 242 238 Covad Communications
7066 486 232 Virginia Polytechnic Institut
1 671 228 GENUITY
376 330 225 Reseau Interordinateurs Scien
7303 267 207 Telecom Argentina Stet-France
4755 280 206 Videsh Sanchar Nigam Ltd. Aut
4814 220 206 China Telecom (Group)
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
1877 UNALLOCATED 192.36.147.0/24 1878 Peter & Paul's test
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 /8:18 /9:6 /10:7 /11:12 /12:37
/13:84 /14:231 /15:418 /16:7302 /17:1470 /18:2691
/19:7782 /20:7570 /21:5276 /22:7989 /23:9707 /24:63534
/25:204 /26:179 /27:99 /28:81 /29:41 /30:74
/31:0 /32:31
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 602 1017 Supernet, Inc.
702 544 894 UUNET - Commercial IP service
701 487 1793 UUNET Technologies, Inc.
690 467 521 Merit Network
7843 423 624 Adelphia Corp.
7066 389 486 Virginia Polytechnic Institut
7018 373 1307 AT&T
7029 357 452 Alltel Information Services,
6197 264 379 BellSouth Network Solutions,
6198 244 317 BellSouth Network Solutions,
18566 238 242 Covad Communications
3301 234 396 TeliaNet Sweden
3215 221 289 France Telecom Transpac
1239 214 815 Sprint
1580 200 213 ANOSCEUR
3320 190 257 Deutsche Telekom AG
4355 190 332 EarthLink, Inc.
7046 188 514 UUNET Technologies, Inc.
209 187 505 Qwest
4323 185 639 Time Warner Communications, I
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:1 4:3 12:537 13:10 15:2 17:6
20:4 24:705 25:1 32:41 38:9 40:6
44:1 57:15 61:321 62:245 63:1856 64:1217
65:1429 66:1045 67:95 68:82 80:263 81:44
128:66 129:139 130:21 131:56 132:11 133:2
134:124 135:9 136:463 137:96 138:151 139:72
140:187 141:51 142:69 143:48 144:142 145:18
146:244 147:143 148:247 149:79 150:40 151:70
152:267 153:38 154:11 155:115 156:70 157:116
158:68 159:134 160:20 161:77 162:216 163:87
164:261 165:126 166:214 167:261 168:284 169:60
170:188 171:3 192:5464 193:2363 194:2069 195:807
196:416 198:3681 199:3165 200:2720 202:3287 203:4736
204:3277 205:2190 206:2540 207:2590 208:2601 209:2711
210:599 211:239 212:888 213:712 214:8 215:19
216:2831 217:486 218:31 219:2
End of report
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