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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 02 Oct, 2002
Analysis Summary
----------------
BGP routing table entries examined: 115322
Prefixes after maximum aggregation: 74275
Unique aggregates announced to Internet: 55229
Total ASes present in the Internet Routing Table: 13832
Origin-only ASes present in the Internet Routing Table: 11954
Origin ASes announcing only one prefix: 5352
Transit ASes present in the Internet Routing Table: 1878
Transit-only ASes present in the Internet Routing Table: 61
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: 1193322732
Equivalent to 71 /8s, 32 /16s and 168 /24s
Percentage of available address space announced: 32.2
Percentage of allocated address space announced: 59.0
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 47604
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18728
Total APNIC prefixes after maximum aggregation: 11348
Prefixes being announced from the APNIC address blocks: 17254
Unique aggregates announced from the APNIC address blocks: 10970
APNIC Region origin ASes present in the Internet Routing Table: 1615
APNIC Region origin ASes announcing only one prefix: 526
APNIC Region transit ASes present in the Internet Routing Table: 280
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 97743904
Equivalent to 5 /8s, 211 /16s and 116 /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: 72234
Total ARIN prefixes after maximum aggregation: 45992
Prefixes being announced from the ARIN address blocks: 50584
Unique aggregates announced from the ARIN address blocks: 15139
ARIN Region origin ASes present in the Internet Routing Table: 7773
ARIN Region origin ASes announcing only one prefix: 2545
ARIN Region transit ASes present in the Internet Routing Table: 757
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 184464192
Equivalent to 10 /8s, 254 /16s and 179 /24s
Percentage of available ARIN address space announced: 68.7
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
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: 19574
Total RIPE prefixes after maximum aggregation: 14860
Prefixes being announced from the RIPE address blocks: 16260
Unique aggregates announced from the RIPE address blocks: 10796
RIPE Region origin ASes present in the Internet Routing Table: 4069
RIPE Region origin ASes announcing only one prefix: 2201
RIPE Region transit ASes present in the Internet Routing Table: 759
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 14
Number of RIPE addresses announced to Internet: 114193536
Equivalent to 6 /8s, 206 /16s and 116 /24s
Percentage of available RIPE address space announced: 75.6
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
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 4786
Total LACNIC prefixes after maximum aggregation: 2075
Prefixes being announced from the LACNIC address blocks: 4220
Unique aggregates announced from the LACNIC address blocks: 2621
LACNIC Region origin ASes present in the Internet Routing Table: 314
LACNIC Region origin ASes announcing only one prefix: 80
LACNIC Region transit ASes present in the Internet Routing Table: 69
Average LACNIC Region AS path length visible: 6.0
Max LACNIC Region AS path length visible: 17
Number of LACNIC addresses announced to Internet: 11259648
Equivalent to 0 /8s, 171 /16s and 207 /24s
Percentage of available LACNIC address space announced: 67.1
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 1196 1187 880 Telstra Pty Ltd
703 400 375 315 UUNET
2907 366 1849 345 SINET Japan
2764 346 357 318 connect.com.au pty ltd
7474 305 275 205 Optus Communications Pty Ltd
4134 292 2268 96 Data Communications Bureau
17557 287 21 114 Pakistan Telecom
4755 265 139 73 Videsh Sanchar Nigam Ltd. Aut
4766 249 1808 157 Korea Internet Exchange for "
4814 224 80 16 China Telecom (Group)
17676 222 3474 32 XTAGE CORPORATION
9443 185 57 70 Primus Telecommunications
9583 165 32 5 Satyam Infoway Ltd.,
4515 138 102 79 Star Internet Services Ltd.
9768 136 385 74 Korea Telecom
7657 128 22 85 The Internet Group Limited
9800 122 188 24 CHINA UNICOM
4739 117 56 108 Commerical Internet eXchange
4713 116 1049 105 NTT Communications Corporatio
4637 107 80 59 Reach Network Border AS
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1782 9230 1282 UUNET Technologies, Inc.
7018 1321 7184 931 AT&T
3908 1047 1652 507 Supernet, Inc.
1239 842 3169 644 Sprint
852 757 1145 457 Telus Advanced Communications
7843 716 371 298 Adelphia Corp.
1 663 8089 438 GENUITY
7132 595 672 71 Southwestern Bell Internet Se
7046 589 879 310 UUNET Technologies, Inc.
4323 524 435 165 Time Warner Communications, I
690 518 75 325 Merit Network
209 511 5415 337 Qwest
7066 490 204 258 Virginia Polytechnic Institut
2548 443 1118 273 Business Internet, Inc.
3549 416 726 300 Global Crossing
705 410 130 200 UUNET Technologies, Inc.
6197 385 597 39 BellSouth Network Solutions,
4355 382 292 104 EarthLink, Inc.
2914 368 2027 361 Verio, Inc.
15290 356 230 173 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 874 2406 728 UUNET - Commercial IP service
3301 388 907 340 TeliaNet Sweden
3215 294 677 170 France Telecom Transpac
3320 247 1966 225 Deutsche Telekom AG
680 238 2151 234 DFN-IP service G-WiN
5515 214 783 177 Sonera Solution Autonomous Sy
5400 209 84 97 BT Ignite European Backbone
1257 203 444 200 SWIPnet Swedish IP Network
719 191 306 130 LANLINK autonomous system
786 176 1873 176 The JANET IP Service
8708 150 41 144 Romania Data Systems S.A.
3303 144 532 143 Swisscom Ltd
2856 135 788 125 BTnet UK Regional network
12302 124 18 31 MobiFon S.A.
3246 123 373 116 Song Networks
5511 111 191 89 France Telecom
8220 109 168 101 COLT Internet - International
3233 106 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 200 298 112 UniNet S.A. de C.V.
7303 172 27 50 Telecom Argentina Stet-France
11172 168 88 34 Servicios Alestra S.A de C.V
6503 160 206 112 AVANTEL, S.A.
10834 147 75 35 ADVANCE TELECOMUNICACIONES S.
16814 107 7 13 NSS, S.A.
13999 103 19 8 Mega Cable S.A. de C.V.
6140 100 76 27 ImpSat USA, Inc.
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 68 18 10 Red de Interconexion Universi
2277 64 16 3 ECUANET - CORPORACION ECUATOR
7984 64 27 42 Global One Colombia
4926 62 4 51 Telintar S.A.
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 1047 540 Supernet, Inc.
7132 595 524 Southwestern Bell Internet Se
7843 716 418 Adelphia Corp.
7018 1321 390 AT&T
4323 524 359 Time Warner Communications, I
6197 385 346 BellSouth Network Solutions,
1221 1196 316 Telstra Pty Ltd
1580 320 308 ANOSCEUR
852 757 300 Telus Advanced Communications
18566 286 282 Covad Communications
7046 589 279 UUNET Technologies, Inc.
4355 382 278 EarthLink, Inc.
6347 342 268 SAVVIS Communications Corpora
4151 279 264 USDA
7066 490 232 Virginia Polytechnic Institut
376 341 231 Reseau Interordinateurs Scien
1 663 225 GENUITY
705 410 210 UUNET Technologies, Inc.
11492 222 209 Cable One
4814 224 208 China Telecom (Group)
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 /8:19 /9:6 /10:7 /11:12 /12:37
/13:90 /14:237 /15:429 /16:7272 /17:1500 /18:2690
/19:7854 /20:7508 /21:5292 /22:8081 /23:9805 /24:63667
/25:170 /26:219 /27:116 /28:84 /29:52 /30:108
/31:0 /32:67
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 617 1047 Supernet, Inc.
702 538 874 UUNET - Commercial IP service
7843 527 716 Adelphia Corp.
701 485 1782 UUNET Technologies, Inc.
690 465 518 Merit Network
7018 408 1321 AT&T
7066 388 490 Virginia Polytechnic Institut
1580 307 320 ANOSCEUR
18566 280 286 Covad Communications
7046 275 589 UUNET Technologies, Inc.
6197 269 385 BellSouth Network Solutions,
6198 241 311 BellSouth Network Solutions,
1239 238 842 Sprint
3301 231 388 TeliaNet Sweden
3215 225 294 France Telecom Transpac
4355 220 382 EarthLink, Inc.
11492 217 222 Cable One
3320 188 247 Deutsche Telekom AG
5400 187 209 BT Ignite European Backbone
705 186 410 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 12:550 13:10 15:4 17:7 20:4
24:852 25:1 32:41 38:24 40:7 44:1
55:1 57:15 61:351 62:243 63:1848 64:1285
65:1518 66:1201 67:110 68:114 80:299 81:58
128:66 129:124 130:19 131:54 132:11 133:2
134:130 135:9 136:593 137:95 138:153 139:70
140:169 141:74 142:70 143:48 144:152 145:17
146:241 147:226 148:247 149:78 150:42 151:61
152:296 153:38 154:9 155:105 156:102 157:108
158:68 159:138 160:21 161:73 162:123 163:88
164:261 165:126 166:106 167:272 168:288 169:57
170:178 171:3 192:5383 193:2382 194:2018 195:813
196:427 198:3594 199:3072 200:2628 202:3398 203:4799
204:3290 205:2136 206:2400 207:2484 208:2550 209:2588
210:606 211:246 212:879 213:720 214:8 215:19
216:2920 217:499 218:47 219:2
End of report
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