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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 14 Aug, 2002
Analysis Summary
----------------
BGP routing table entries examined: 114852
Prefixes after maximum aggregation: 74095
Unique aggregates announced to Internet: 54819
Total ASes present in the Internet Routing Table: 13540
Origin-only ASes present in the Internet Routing Table: 11706
Origin ASes announcing only one prefix: 5212
Transit ASes present in the Internet Routing Table: 1834
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: 18
Illegal AS announcements present in the Routing Table: 1
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 34
Number of addresses announced to Internet: 1181268088
Equivalent to 70 /8s, 104 /16s and 184 /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: 46754
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18968
Total APNIC prefixes after maximum aggregation: 11223
Prefixes being announced from the APNIC address blocks: 17420
Unique aggregates announced from the APNIC address blocks: 10639
APNIC Region origin ASes present in the Internet Routing Table: 1586
APNIC Region origin ASes announcing only one prefix: 517
APNIC Region transit ASes present in the Internet Routing Table: 282
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 91327200
Equivalent to 5 /8s, 113 /16s and 138 /24s
Percentage of available APNIC address space announced: 60.1
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: 76574
Total ARIN prefixes after maximum aggregation: 48274
Prefixes being announced from the ARIN address blocks: 54154
Unique aggregates announced from the ARIN address blocks: 18081
ARIN Region origin ASes present in the Internet Routing Table: 7962
ARIN Region origin ASes announcing only one prefix: 2562
ARIN Region transit ASes present in the Internet Routing Table: 802
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 190550608
Equivalent to 11 /8s, 91 /16s and 146 /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: 19310
Total RIPE prefixes after maximum aggregation: 14598
Prefixes being announced from the RIPE address blocks: 16036
Unique aggregates announced from the RIPE address blocks: 10496
RIPE Region origin ASes present in the Internet Routing Table: 3938
RIPE Region origin ASes announcing only one prefix: 2133
RIPE Region transit ASes present in the Internet Routing Table: 737
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 14
Number of RIPE addresses announced to Internet: 113090304
Equivalent to 6 /8s, 189 /16s and 159 /24s
Percentage of available RIPE address space announced: 74.9
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 1223 1189 885 Telstra Pty Ltd
4538 564 1280 27 China Education and Research
703 415 377 323 UUNET
2907 366 1833 344 SINET Japan
2764 358 358 329 connect.com.au pty ltd
7474 317 296 213 Optus Communications Pty Ltd
4134 296 2183 102 Data Communications Bureau
4755 281 110 73 Videsh Sanchar Nigam Ltd. Aut
17557 268 20 95 Pakistan Telecom
4766 249 1506 156 Korea Internet Exchange for "
4814 222 79 14 China Telecom (Group)
9583 184 32 5 Satyam Infoway Ltd.,
17676 183 2850 31 XTAGE CORPORATION
9443 169 45 68 Primus Telecommunications
7539 147 175 142 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
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
702 897 2417 754 UUNET - Commercial IP service
3301 397 923 347 TeliaNet Sweden
5515 320 783 180 Sonera Solution Autonomous Sy
3215 290 641 179 France Telecom Transpac
3320 259 1964 211 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
8708 143 24 139 Romania Data Systems S.A.
3303 142 548 141 Swisscom Ltd
2856 126 786 116 BTnet UK Regional network
12302 123 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 1796 9144 1363 UUNET Technologies, Inc.
7018 1309 7447 934 AT&T
3908 1018 1659 497 Supernet, Inc.
1239 816 3250 650 Sprint
852 752 1175 450 Telus Advanced Communications
1 679 8052 446 GENUITY
7843 628 371 257 Adelphia Corp.
7132 593 663 137 Southwestern Bell Internet Se
4323 588 453 203 Time Warner Communications, I
690 521 75 328 Merit Network
7046 514 886 315 UUNET Technologies, Inc.
209 504 2057 343 Qwest
7066 485 203 254 Virginia Polytechnic Institut
2548 462 1162 275 Business Internet, Inc.
7029 451 164 53 Alltel Information Services,
3549 437 808 312 Global Crossing
6197 381 611 37 BellSouth Network Solutions,
15290 376 297 193 AT&T Canada IES
2914 362 2077 362 Verio, Inc.
6347 347 370 76 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 564 537 China Education and Research
3908 1018 521 Supernet, Inc.
7132 593 456 Southwestern Bell Internet Se
7029 451 398 Alltel Information Services,
4323 588 385 Time Warner Communications, I
7018 1309 375 AT&T
7843 628 371 Adelphia Corp.
6197 381 344 BellSouth Network Solutions,
1221 1223 338 Telstra Pty Ltd
852 752 302 Telus Advanced Communications
4151 295 279 USDA
6347 347 271 SAVVIS Communications Corpora
4355 332 261 EarthLink, Inc.
18566 243 239 Covad Communications
1 679 233 GENUITY
7066 485 231 Virginia Polytechnic Institut
376 330 225 Reseau Interordinateurs Scien
4755 281 208 Videsh Sanchar Nigam Ltd. Aut
4814 222 208 China Telecom (Group)
1580 213 201 ANOSCEUR
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
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 - 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 /16:7311 /17:1472 /18:2692
/19:7795 /20:7570 /21:5280 /22:7988 /23:9705 /24:63508
/25:204 /26:181 /27:98 /28:81 /29:41 /30:78
/31:0 /32:35
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 604 1018 Supernet, Inc.
702 547 897 UUNET - Commercial IP service
701 492 1796 UUNET Technologies, Inc.
690 467 521 Merit Network
7843 429 628 Adelphia Corp.
7066 388 485 Virginia Polytechnic Institut
7018 374 1309 AT&T
7029 357 451 Alltel Information Services,
6197 266 381 BellSouth Network Solutions,
6198 244 317 BellSouth Network Solutions,
18566 239 243 Covad Communications
3301 235 397 TeliaNet Sweden
3215 222 290 France Telecom Transpac
1239 214 816 Sprint
1580 200 213 ANOSCEUR
3320 191 259 Deutsche Telekom AG
4355 190 332 EarthLink, Inc.
7046 189 514 UUNET Technologies, Inc.
209 186 504 Qwest
4323 185 588 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 57:14 61:321 62:244 63:1860 64:1219
65:1437 66:991 67:97 68:82 80:264 81:44
128:66 129:140 130:21 131:56 132:11 133:2
134:124 135:9 136:499 137:95 138:151 139:72
140:235 141:47 142:69 143:48 144:142 145:18
146:248 147:143 148:246 149:79 150:40 151:69
152:268 153:38 154:11 155:114 156:71 157:113
158:68 159:134 160:20 161:76 162:214 163:88
164:260 165:126 166:215 167:263 168:284 169:60
170:187 171:3 192:5464 193:2359 194:2071 195:805
196:416 198:3675 199:3164 200:2680 202:3286 203:4741
204:3282 205:2187 206:2542 207:2545 208:2605 209:2710
210:608 211:240 212:883 213:712 214:7 215:19
216:2836 217:498 218:30 219:1
End of report
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