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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 Thu 31 Oct, 2002
Analysis Summary
----------------
BGP routing table entries examined: 116756
Prefixes after maximum aggregation: 74807
Unique aggregates announced to Internet: 55844
Total ASes present in the Internet Routing Table: 13990
Origin-only ASes present in the Internet Routing Table: 12130
Origin ASes announcing only one prefix: 5451
Transit ASes present in the Internet Routing Table: 1860
Transit-only ASes present in the Internet Routing Table: 60
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 23
Illegal AS announcements present in the Routing Table: 7
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: 1182071144
Equivalent to 70 /8s, 116 /16s and 249 /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: 48866
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19097
Total APNIC prefixes after maximum aggregation: 11500
Prefixes being announced from the APNIC address blocks: 17572
Unique aggregates announced from the APNIC address blocks: 11150
APNIC Region origin ASes present in the Internet Routing Table: 1632
APNIC Region origin ASes announcing only one prefix: 518
APNIC Region transit ASes present in the Internet Routing Table: 275
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 99578528
Equivalent to 5 /8s, 239 /16s and 114 /24s
Percentage of available APNIC address space announced: 65.5
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: 73071
Total ARIN prefixes after maximum aggregation: 46259
Prefixes being announced from the ARIN address blocks: 51521
Unique aggregates announced from the ARIN address blocks: 15425
ARIN Region origin ASes present in the Internet Routing Table: 7862
ARIN Region origin ASes announcing only one prefix: 2616
ARIN Region transit ASes present in the Internet Routing Table: 747
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 182296032
Equivalent to 10 /8s, 221 /16s and 157 /24s
Percentage of available ARIN address space announced: 67.9
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: 19743
Total RIPE prefixes after maximum aggregation: 14955
Prefixes being announced from the RIPE address blocks: 16423
Unique aggregates announced from the RIPE address blocks: 11029
RIPE Region origin ASes present in the Internet Routing Table: 4120
RIPE Region origin ASes announcing only one prefix: 2238
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: 15
Number of RIPE addresses announced to Internet: 118752736
Equivalent to 7 /8s, 20 /16s and 5 /24s
Percentage of available RIPE address space announced: 78.6
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: 4839
Total LACNIC prefixes after maximum aggregation: 2093
Prefixes being announced from the LACNIC address blocks: 4198
Unique aggregates announced from the LACNIC address blocks: 2664
LACNIC Region origin ASes present in the Internet Routing Table: 319
LACNIC Region origin ASes announcing only one prefix: 79
LACNIC Region transit ASes present in the Internet Routing Table: 69
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 17
Number of LACNIC addresses announced to Internet: 11626240
Equivalent to 0 /8s, 177 /16s and 103 /24s
Percentage of available LACNIC address space announced: 69.3
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 1191 1169 869 Telstra Pty Ltd
703 395 367 313 UUNET
2907 350 1751 330 SINET Japan
2764 334 356 306 connect.com.au pty ltd
17557 318 23 119 Pakistan Telecom
4134 296 2287 98 Data Communications Bureau
7474 292 275 201 Optus Communications Pty Ltd
4755 265 137 69 Videsh Sanchar Nigam Ltd. Aut
4766 250 1808 158 Korea Internet Exchange for "
4814 233 79 15 China Telecom (Group)
17676 225 3522 32 XTAGE CORPORATION
9443 185 57 73 Primus Telecommunications
9583 161 32 6 Satyam Infoway Ltd.,
4515 139 102 77 Star Internet Services Ltd.
9768 135 385 74 Korea Telecom
4716 130 738 124 TTnet
7657 129 24 90 The Internet Group Limited
9800 122 188 24 CHINA UNICOM
4739 117 56 108 Commerical Internet eXchange
4713 112 1044 101 NTT Communications Corporatio
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1774 9156 1264 UUNET Technologies, Inc.
7018 1339 7184 935 AT&T
3908 1088 1669 513 Supernet, Inc.
1239 895 3186 660 Sprint
7843 779 374 312 Adelphia Corp.
852 688 1163 466 Telus Advanced Communications
1 666 8106 439 GENUITY
209 637 2049 336 Qwest
7046 587 860 291 UUNET Technologies, Inc.
690 517 75 324 Merit Network
4323 515 439 164 Time Warner Communications, I
2828 475 598 104 XO Communications
6197 457 601 40 BellSouth Network Solutions,
705 434 134 199 UUNET Technologies, Inc.
3549 412 728 297 Global Crossing
2548 403 1115 244 Business Internet, Inc.
6198 397 181 196 BellSouth Network Solutions,
4355 386 306 109 EarthLink, Inc.
2914 369 2022 362 Verio, Inc.
19029 366 128 31 New Edge Networks
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 864 2372 718 UUNET - Commercial IP service
3301 377 1163 334 TeliaNet Sweden
3215 310 789 172 France Telecom Transpac
3320 245 1964 222 Deutsche Telekom AG
680 238 2151 234 DFN-IP service G-WiN
5515 211 783 176 Sonera Solution Autonomous Sy
1257 208 414 203 SWIPnet Swedish IP Network
719 191 306 130 LANLINK autonomous system
5400 183 83 95 BT Ignite European Backbone
786 176 1873 176 The JANET IP Service
2856 170 1302 132 BTnet UK Regional network
8708 158 41 146 Romania Data Systems S.A.
3303 143 517 142 Swisscom Ltd
12302 122 17 29 MobiFon S.A.
3246 120 373 116 Song Networks
8220 114 169 106 COLT Internet - International
3269 108 722 64 TELECOM ITALIA
3233 106 10 8 RNC - Romanian Natioanal R&D
2874 99 85 39 Global One Services AB
5511 97 191 81 France Telecom
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 254 114 58 ImpSat USA, Inc.
8151 212 346 111 UniNet S.A. de C.V.
7303 184 28 50 Telecom Argentina Stet-France
11172 168 88 34 Servicios Alestra S.A de C.V
6503 152 175 109 AVANTEL, S.A.
13999 116 33 17 Mega Cable S.A. de C.V.
16814 106 7 12 NSS, S.A.
10620 99 6 30 TVCABLE BOGOTA
11992 80 8 32 Integrated Systems
11340 78 2 29 Red Universitaria Nacional
15311 75 26 32 Telefonica Empresas
1916 74 425 41 Fundacao de Amparo a Pesquisa
4270 72 18 10 Red de Interconexion Universi
7984 64 27 41 Global One Colombia
4926 63 4 51 Telintar S.A.
2277 61 16 3 ECUANET - CORPORACION ECUATOR
8065 61 6 16 Empresas Publicas de Medellin
15034 60 5 34 TIBA SA
6535 54 4 15 Chilesat Servicios Empresari
7927 54 5 39 Global One Venezuela
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1088 575 Supernet, Inc.
7843 779 467 Adelphia Corp.
6197 457 417 BellSouth Network Solutions,
7018 1339 404 AT&T
2828 475 371 XO Communications
4323 515 351 Time Warner Communications, I
19029 366 335 New Edge Networks
18566 332 328 Covad Communications
1221 1191 322 Telstra Pty Ltd
4151 330 314 USDA
1580 319 306 ANOSCEUR
209 637 301 Qwest
7046 587 296 UUNET Technologies, Inc.
6347 354 279 SAVVIS Communications Corpora
4355 386 277 EarthLink, Inc.
376 342 241 Reseau Interordinateurs Scien
1239 895 235 Sprint
705 434 235 UUNET Technologies, Inc.
1 666 227 GENUITY
852 688 222 Telus Advanced Communications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65025 PRIVATE 81.26.65.0/24 11042 Orion Network System
65010 PRIVATE 168.167.21.0/24 11042 Orion Network System
65501 PRIVATE 200.73.24.0/24 18747 IFX Communication Ve
65501 PRIVATE 200.73.26.0/24 18747 IFX Communication Ve
65501 PRIVATE 200.73.27.0/24 18747 IFX Communication Ve
65501 PRIVATE 200.73.28.0/24 18747 IFX Communication Ve
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 /8:17 /9:5 /10:8 /11:12 /12:46
/13:90 /14:240 /15:428 /16:7309 /17:1513 /18:2745
/19:7884 /20:7498 /21:5350 /22:8216 /23:9935 /24:64720
/25:177 /26:202 /27:111 /28:78 /29:51 /30:93
/31:0 /32:28
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 641 1088 Supernet, Inc.
7843 589 779 Adelphia Corp.
702 533 864 UUNET - Commercial IP service
701 495 1774 UUNET Technologies, Inc.
690 465 517 Merit Network
7018 426 1339 AT&T
2828 370 475 XO Communications
6197 332 457 BellSouth Network Solutions,
19029 332 366 New Edge Networks
18566 327 332 Covad Communications
209 317 637 Qwest
6198 313 397 BellSouth Network Solutions,
1580 305 319 ANOSCEUR
1239 280 895 Sprint
7046 274 587 UUNET Technologies, Inc.
3215 235 310 France Telecom Transpac
11492 225 230 Cable One
3301 223 377 TeliaNet Sweden
4355 219 386 EarthLink, Inc.
7066 205 306 Virginia Polytechnic Institut
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:5 12:581 13:10 15:4 17:2 20:5
24:903 25:1 32:42 38:26 40:11 44:1
55:1 57:15 61:377 62:251 63:1919 64:1373
65:1639 66:1214 67:122 68:196 69:16 80:288
81:62 128:76 129:106 130:21 131:63 132:9
133:2 134:142 135:7 136:410 137:108 138:216
139:78 140:157 141:84 142:81 143:46 144:146
145:18 146:244 147:226 148:251 149:78 150:41
151:88 152:295 153:36 154:8 155:106 156:103
157:105 158:86 159:150 160:20 161:74 162:138
163:85 164:87 165:134 166:94 167:306 168:301
169:59 170:221 171:6 192:5421 193:2393 194:2003
195:835 196:437 198:3618 199:3083 200:2564 202:3522
203:4851 204:3244 205:2121 206:2365 207:2464 208:2565
209:2728 210:611 211:278 212:861 213:768 214:10
215:19 216:3222 217:510 218:48 219:3
End of report
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