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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 Fri 04 Oct, 2002
Analysis Summary
----------------
BGP routing table entries examined: 114930
Prefixes after maximum aggregation: 74151
Unique aggregates announced to Internet: 55104
Total ASes present in the Internet Routing Table: 13824
Origin-only ASes present in the Internet Routing Table: 11952
Origin ASes announcing only one prefix: 5370
Transit ASes present in the Internet Routing Table: 1872
Transit-only ASes present in the Internet Routing Table: 59
Average AS path length visible in the Internet Routing Table: 5.3
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: 35
Number of addresses announced to Internet: 1189865576
Equivalent to 70 /8s, 235 /16s and 232 /24s
Percentage of available address space announced: 32.1
Percentage of allocated address space announced: 58.8
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 47505
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18764
Total APNIC prefixes after maximum aggregation: 11397
Prefixes being announced from the APNIC address blocks: 17277
Unique aggregates announced from the APNIC address blocks: 10977
APNIC Region origin ASes present in the Internet Routing Table: 1617
APNIC Region origin ASes announcing only one prefix: 525
APNIC Region transit ASes present in the Internet Routing Table: 282
Average APNIC Region AS path length visible: 5.2
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 97830816
Equivalent to 5 /8s, 212 /16s and 199 /24s
Percentage of available APNIC address space announced: 64.3
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: 71775
Total ARIN prefixes after maximum aggregation: 45836
Prefixes being announced from the ARIN address blocks: 50138
Unique aggregates announced from the ARIN address blocks: 15233
ARIN Region origin ASes present in the Internet Routing Table: 7762
ARIN Region origin ASes announcing only one prefix: 2566
ARIN Region transit ASes present in the Internet Routing Table: 754
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 181223744
Equivalent to 10 /8s, 205 /16s and 65 /24s
Percentage of available ARIN address space announced: 67.5
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 - 26591, 26624 - 27647
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 199/8, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 19570
Total RIPE prefixes after maximum aggregation: 14839
Prefixes being announced from the RIPE address blocks: 16249
Unique aggregates announced from the RIPE address blocks: 10792
RIPE Region origin ASes present in the Internet Routing Table: 4070
RIPE Region origin ASes announcing only one prefix: 2199
RIPE Region transit ASes present in the Internet Routing Table: 758
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 114299264
Equivalent to 6 /8s, 208 /16s and 17 /24s
Percentage of available RIPE address space announced: 75.7
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
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 4821
Total LACNIC prefixes after maximum aggregation: 2079
Prefixes being announced from the LACNIC address blocks: 4227
Unique aggregates announced from the LACNIC address blocks: 2623
LACNIC Region origin ASes present in the Internet Routing Table: 316
LACNIC Region origin ASes announcing only one prefix: 80
LACNIC Region transit ASes present in the Internet Routing Table: 68
Average LACNIC Region AS path length visible: 6.0
Max LACNIC Region AS path length visible: 17
Number of LACNIC addresses announced to Internet: 11380736
Equivalent to 0 /8s, 173 /16s and 168 /24s
Percentage of available LACNIC address space announced: 67.8
LACNIC AS Blocks 26592 - 26623
LACNIC Address Blocks 200/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1199 1187 881 Telstra Pty Ltd
703 397 375 313 UUNET
2907 362 1831 341 SINET Japan
2764 345 357 317 connect.com.au pty ltd
7474 302 275 205 Optus Communications Pty Ltd
4134 292 2268 96 Data Communications Bureau
17557 289 21 111 Pakistan Telecom
4755 255 138 73 Videsh Sanchar Nigam Ltd. Aut
4766 249 1808 157 Korea Internet Exchange for "
4814 224 80 16 China Telecom (Group)
17676 224 3506 33 XTAGE CORPORATION
9443 186 57 71 Primus Telecommunications
9583 164 32 5 Satyam Infoway Ltd.,
4515 138 102 79 Star Internet Services Ltd.
9768 135 385 73 Korea Telecom
7657 128 22 85 The Internet Group Limited
9800 122 188 24 CHINA UNICOM
4739 117 56 108 Commerical Internet eXchange
4713 115 1049 104 NTT Communications Corporatio
9498 109 8 21 BHARTI BT INTERNET LTD.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1714 9158 1228 UUNET Technologies, Inc.
7018 1331 7187 936 AT&T
3908 1048 1652 509 Supernet, Inc.
1239 843 3169 646 Sprint
852 757 1145 457 Telus Advanced Communications
7843 714 370 305 Adelphia Corp.
1 664 8089 439 GENUITY
7132 595 672 71 Southwestern Bell Internet Se
7046 574 894 306 UUNET Technologies, Inc.
209 526 2066 341 Qwest
4323 525 435 165 Time Warner Communications, I
690 518 75 325 Merit Network
7066 490 204 257 Virginia Polytechnic Institut
2548 444 1118 274 Business Internet, Inc.
3549 408 725 294 Global Crossing
705 396 130 200 UUNET Technologies, Inc.
6197 385 597 39 BellSouth Network Solutions,
4355 382 292 104 EarthLink, Inc.
2914 368 2027 361 Verio, Inc.
15290 359 230 176 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 875 2407 729 UUNET - Commercial IP service
3301 387 907 339 TeliaNet Sweden
3215 294 677 170 France Telecom Transpac
3320 248 1966 225 Deutsche Telekom AG
680 238 2151 234 DFN-IP service G-WiN
5515 214 783 177 Sonera Solution Autonomous Sy
5400 210 84 98 BT Ignite European Backbone
1257 205 444 201 SWIPnet Swedish IP Network
719 191 306 130 LANLINK autonomous system
786 176 1873 176 The JANET IP Service
8708 151 41 145 Romania Data Systems S.A.
3303 144 532 143 Swisscom Ltd
2856 135 788 125 BTnet UK Regional network
3246 123 373 116 Song Networks
12302 121 17 28 MobiFon S.A.
5511 111 192 89 France Telecom
8220 109 168 101 COLT Internet - International
3233 107 10 8 RNC - Romanian Natioanal R&D
3269 106 690 64 TELECOM ITALIA
2874 103 85 39 Global One Services AB
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 201 299 113 UniNet S.A. de C.V.
7303 172 27 49 Telecom Argentina Stet-France
11172 169 88 34 Servicios Alestra S.A de C.V
6503 151 206 106 AVANTEL, S.A.
10834 147 75 35 ADVANCE TELECOMUNICACIONES S.
6140 115 76 28 ImpSat USA, Inc.
16814 107 7 13 NSS, S.A.
13999 103 19 8 Mega Cable S.A. de C.V.
10620 93 6 29 TVCABLE BOGOTA
11340 79 2 24 Red Universitaria Nacional
1916 73 409 40 Fundacao de Amparo a Pesquisa
15311 73 24 31 Telefonica Empresas
15034 72 5 32 TIBA SA
11992 70 7 30 Integrated Systems
4270 67 18 10 Red de Interconexion Universi
7984 64 27 42 Global One Colombia
4926 63 4 51 Telintar S.A.
2277 62 16 3 ECUANET - CORPORACION ECUATOR
8065 59 6 16 Empresas Publicas de Medellin
16528 57 5 35 ImpSat S.A.
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1048 539 Supernet, Inc.
7132 595 524 Southwestern Bell Internet Se
7843 714 409 Adelphia Corp.
7018 1331 395 AT&T
4323 525 360 Time Warner Communications, I
6197 385 346 BellSouth Network Solutions,
1221 1199 318 Telstra Pty Ltd
1580 320 309 ANOSCEUR
852 757 300 Telus Advanced Communications
18566 286 282 Covad Communications
4355 382 278 EarthLink, Inc.
7046 574 268 UUNET Technologies, Inc.
6347 339 265 SAVVIS Communications Corpora
4151 278 264 USDA
7066 490 233 Virginia Polytechnic Institut
376 341 231 Reseau Interordinateurs Scien
1 664 225 GENUITY
11492 222 209 Cable One
4814 224 208 China Telecom (Group)
1239 843 197 Sprint
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
164.236.0.0/16 568 DISO-UNRRA
192.31.242.0/24 771 NASA Ames Research Center
192.44.0.0/19 702 UUNET - Commercial IP service
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
192.136.136.0/24 7046 UUNET Technologies, Inc.
192.136.136.0/22 568 DISO-UNRRA
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
192.208.29.0/24 3908 Supernet, Inc.
192.208.30.0/23 3908 Supernet, Inc.
192.243.36.0/23 2044 AUSNet, Inc.
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
/13:90 /14:237 /15:428 /16:7266 /17:1501 /18:2700
/19:7840 /20:7506 /21:5273 /22:8078 /23:9802 /24:63333
/25:169 /26:209 /27:116 /28:84 /29:52 /30:107
/31:0 /32:59
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 618 1048 Supernet, Inc.
702 539 875 UUNET - Commercial IP service
7843 526 714 Adelphia Corp.
701 471 1714 UUNET Technologies, Inc.
690 465 518 Merit Network
7018 414 1331 AT&T
7066 388 490 Virginia Polytechnic Institut
1580 308 320 ANOSCEUR
18566 280 286 Covad Communications
6197 269 385 BellSouth Network Solutions,
7046 263 574 UUNET Technologies, Inc.
6198 243 310 BellSouth Network Solutions,
1239 238 843 Sprint
3301 231 387 TeliaNet Sweden
3215 225 294 France Telecom Transpac
4355 220 382 EarthLink, Inc.
11492 217 222 Cable One
209 203 526 Qwest
3320 189 248 Deutsche Telekom AG
5400 188 210 BT Ignite European Backbone
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 12:538 13:10 15:4 17:7 20:4
24:839 25:1 32:41 38:24 40:7 44:1
55:1 57:14 61:357 62:237 63:1827 64:1267
65:1509 66:1193 67:109 68:123 80:298 81:56
128:118 129:125 130:18 131:54 132:11 133:2
134:129 135:9 136:592 137:104 138:153 139:70
140:169 141:55 142:71 143:48 144:152 145:17
146:237 147:227 148:246 149:77 150:42 151:61
152:297 153:37 154:9 155:101 156:101 157:105
158:69 159:139 160:23 161:71 162:122 163:88
164:262 165:126 166:105 167:264 168:302 169:57
170:174 171:3 192:5379 193:2378 194:2018 195:818
196:432 198:3572 199:3010 200:2628 202:3423 203:4805
204:3238 205:2089 206:2324 207:2466 208:2530 209:2560
210:585 211:246 212:880 213:726 214:8 215:19
216:2933 217:504 218:47 219:2
End of report
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