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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 21 Nov, 2003
Analysis Summary
----------------
BGP routing table entries examined: 130177
Prefixes after maximum aggregation: 80522
Unique aggregates announced to Internet: 62398
Total ASes present in the Internet Routing Table: 16211
Origin-only ASes present in the Internet Routing Table: 14069
Origin ASes announcing only one prefix: 6445
Transit ASes present in the Internet Routing Table: 2142
Transit-only ASes present in the Internet Routing Table: 71
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 22
Illegal AS announcements present in the Routing Table: 3
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 13
Number of addresses announced to Internet: 1260266084
Equivalent to 75 /8s, 30 /16s and 34 /24s
Percentage of available address space announced: 34.0
Percentage of allocated address space announced: 59.3
Percentage of available address space allocated: 57.3
Total number of prefixes smaller than registry allocations: 57456
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 23668
Total APNIC prefixes after maximum aggregation: 12988
Prefixes being announced from the APNIC address blocks: 22036
Unique aggregates announced from the APNIC address blocks: 12591
APNIC Region origin ASes present in the Internet Routing Table: 1948
APNIC Region origin ASes announcing only one prefix: 581
APNIC Region transit ASes present in the Internet Routing Table: 318
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 128348160
Equivalent to 7 /8s, 166 /16s and 112 /24s
Percentage of available APNIC address space announced: 69.2
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 76853
Total ARIN prefixes after maximum aggregation: 47820
Prefixes being announced from the ARIN address blocks: 59633
Unique aggregates announced from the ARIN address blocks: 20595
ARIN Region origin ASes present in the Internet Routing Table: 8750
ARIN Region origin ASes announcing only one prefix: 3048
ARIN Region transit ASes present in the Internet Routing Table: 830
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 209619872
Equivalent to 12 /8s, 126 /16s and 139 /24s
Percentage of available ARIN address space announced: 73.5
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, 29695 - 30719
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 198/7, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 23009
Total RIPE prefixes after maximum aggregation: 16795
Prefixes being announced from the RIPE address blocks: 19839
Unique aggregates announced from the RIPE address blocks: 13182
RIPE Region origin ASes present in the Internet Routing Table: 4982
RIPE Region origin ASes announcing only one prefix: 2679
RIPE Region transit ASes present in the Internet Routing Table: 880
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 141513216
Equivalent to 8 /8s, 111 /16s and 82 /24s
Percentage of available RIPE address space announced: 64.9
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, 28672 - 29695
30720 - 31743
RIPE Address Blocks 62/8, 80/6, 84/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5541
Total LACNIC prefixes after maximum aggregation: 2218
Prefixes being announced from the LACNIC address blocks: 5043
Unique aggregates announced from the LACNIC address blocks: 3059
LACNIC Region origin ASes present in the Internet Routing Table: 364
LACNIC Region origin ASes announcing only one prefix: 107
LACNIC Region transit ASes present in the Internet Routing Table: 72
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 13488896
Equivalent to 0 /8s, 205 /16s and 211 /24s
Percentage of available LACNIC address space announced: 40.2
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1104
Total AfriNIC prefixes after maximum aggregation: 701
Prefixes being announced from the AfriNIC address blocks: 723
Unique aggregates announced from the AfriNIC address blocks: 556
AfriNIC Region origin ASes present in the Internet Routing Table: 96
AfriNIC Region origin ASes announcing only one prefix: 30
AfriNIC Region transit ASes present in the Internet Routing Table: 11
Average AfriNIC Region AS path length visible: 5.0
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1753344
Equivalent to 0 /8s, 26 /16s and 193 /24s
Percentage of available AfriNIC address space announced: 10.5
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 953 1119 681 Telstra Pty Ltd
2907 374 1864 350 SINET Japan
4134 364 2416 110 Data Communications Bureau
4755 355 131 61 Videsh Sanchar Nigam Ltd. Aut
9443 337 71 82 Primus Telecommunications
703 324 355 257 UUNET
17557 300 21 151 Pakistan Telecom
17676 281 4156 32 XTAGE CORPORATION
2764 278 287 238 connect.com.au pty ltd
7474 265 306 216 Optus Communications Pty Ltd
4766 264 2896 191 Korea Internet Exchange for "
4538 248 1778 22 China Education and Research
9583 236 44 11 Satyam Infoway Ltd.,
3786 234 773 203 DACOM Corporation
9929 213 165 38 China Netcom Corp.
9800 207 343 57 CHINA UNICOM
9942 206 70 120 COMindico Australia
9498 171 22 29 BHARTI BT INTERNET LTD.
17642 154 40 113 RequestDSL BGP AS# for Sydney
4837 145 1253 98 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1434 8651 991 UUNET Technologies, Inc.
7018 1375 7033 950 AT&T
1239 918 3108 664 Sprint
209 888 3475 541 Qwest
6197 751 434 212 BellSouth Network Solutions,
18566 728 176 8 Covad Communications
4323 690 594 201 Time Warner Communications, I
3356 670 10869 548 Level 3 Communications, LLC
6198 615 373 225 BellSouth Network Solutions,
20115 583 316 330 Charter Communications
7843 519 498 127 Adelphia Corp.
852 516 1107 409 Telus Advanced Communications
7066 510 207 271 Virginia Polytechnic Institut
7132 439 7225 306 Southwestern Bell Internet Se
19029 415 174 276 New Edge Networks
2386 403 543 210 AT&T Data Communications Serv
690 400 58 270 Merit Network
4355 390 329 101 EarthLink, Inc.
705 381 180 237 UUNET Technologies, Inc.
376 359 359 114 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 691 2091 572 UUNET - Commercial IP service
3301 313 1170 290 TeliaNet Sweden
3320 276 1988 230 Deutsche Telekom AG
8220 257 420 246 COLT Internet - International
1257 237 455 188 SWIPnet Swedish IP Network
680 232 2054 229 DFN-IP service G-WiN
13083 215 51 8 Mannesmann Datenverarbeitung
5400 189 174 138 BT Ignite European Backbone
3246 178 438 176 Song Networks
786 175 1826 175 The JANET IP Service
5515 175 778 137 Sonera Solution Autonomous Sy
8708 161 111 155 Romania Data Systems S.A.
3215 160 687 81 France Telecom Transpac
25186 160 181 113 France Telecom Transpac's Tra
3303 145 557 139 Swisscom Ltd
719 134 288 104 LANLINK autonomous system
12302 126 18 33 MobiFon S.A.
3269 118 911 65 TELECOM ITALIA
2856 117 1294 108 BTnet UK Regional network
6746 103 16 77 Dynamic Network Technologies,
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 343 120 66 ImpSat
8151 229 349 127 UniNet S.A. de C.V.
11172 192 77 42 Servicios Alestra S.A de C.V
7303 181 43 33 Telecom Argentina Stet-France
16814 156 10 5 NSS, S.A.
6505 134 91 94 Global One Communicaoes Ltda
6503 128 205 92 AVANTEL, S.A.
10620 123 8 27 TVCABLE BOGOTA
6147 121 70 19 Telefonica Del Peru
11340 106 3 29 Red Universitaria Nacional
11992 86 25 31 Integrated Systems
8065 83 10 19 Empresas Publicas de Medellin
15311 76 16 39 Telefonica Empresas
6535 75 5 18 Chilesat Servicios Empresari
4270 71 18 9 Red de Interconexion Universi
11311 66 7 22 Sinectis S.A.
7080 64 4 1 Electronica y Comunicaciones
14420 61 4 23 ANDINATEL S.A.
27699 60 152 15 TELECOMUNICACOES DE SAO PAULO
1916 59 262 39 Fundacao de Amparo a Pesquisa
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 249 632 219 The Internet Solution
2018 94 297 92 Tertiary Education Network
5536 88 7 23 Internet Egypt Network
2905 59 245 52 The Internetworking Company o
2561 55 6 3 Egyptian Universities Network
11845 35 9 10 Data Pro Business Online
11569 31 29 28 satellite data networks
16284 30 3 5 GST-N Autonomous System
16637 26 9 19 Johnnic e-Ventures
5713 24 93 22 Telkom SA Ltd
9129 24 3 4 UUNET Kenya
12455 23 4 2 Jambonet Autonomous system
6713 21 38 8 Itissalat Al-MAGHRIB
10798 18 1 12 Standard Bank of South Africa
3208 17 2 1 ARN Network
8524 17 1 3 AUCEGYPT Autonomous System
12258 15 3 10 Vodacom Internet Company
15706 15 2 5 Sudatel Internet Exchange Aut
17148 14 1 8 First National Bank
8346 12 6 12 SONATEL-AS Autonomous System
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 728 720 Covad Communications
6197 751 539 BellSouth Network Solutions,
4323 690 489 Time Warner Communications, I
7018 1375 425 AT&T
7843 519 392 Adelphia Corp.
6198 615 390 BellSouth Network Solutions,
209 888 347 Qwest
27364 353 329 Armstrong Cable Services
22909 312 302 Comcast Cable Corporation
4755 355 294 Videsh Sanchar Nigam Ltd. Aut
5668 310 291 Century Telephone
4355 390 289 EarthLink, Inc.
22773 310 284 Cox Communications, Inc. Atla
6140 343 277 ImpSat
1221 953 272 Telstra Pty Ltd
6347 335 256 SAVVIS Communications Corpora
9443 337 255 Primus Telecommunications
1239 918 254 Sprint
4134 364 254 Data Communications Bureau
20115 583 253 Charter Communications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
18413 UNALLOCATED 61.67.0.0/20 4747 Taiwan Telecommunica
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
65001 PRIVATE 193.252.155.0/24 25113 France Telecom
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 568 DISO-UNRRA
137.0.0.0/13 568 DISO-UNRRA
158.0.0.0/13 568 DISO-UNRRA
192.43.230.0/24 4738 South Australian Academic Res
192.44.0.0/19 702 UUNET - Commercial IP service
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
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 568 DISO-UNRRA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:4 /10:6 /11:13 /12:57
/13:97 /14:275 /15:479 /16:7463 /17:1831 /18:3279
/19:8669 /20:9166 /21:6660 /22:9356 /23:10894 /24:71148
/25:179 /26:229 /27:165 /28:71 /29:24 /30:52
/31:0 /32:41
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 722 728 Covad Communications
6197 607 751 BellSouth Network Solutions,
7018 499 1375 AT&T
6198 476 615 BellSouth Network Solutions,
701 441 1434 UUNET Technologies, Inc.
702 415 691 UUNET - Commercial IP service
7066 402 510 Virginia Polytechnic Institut
20115 366 583 Charter Communications
690 361 400 Merit Network
27364 347 353 Armstrong Cable Services
3356 337 670 Level 3 Communications, LLC
1239 328 918 Sprint
209 311 888 Qwest
5668 276 310 Century Telephone
19029 265 415 New Edge Networks
25844 244 244 Skadden, Arps, Slate, Meagher
3320 218 276 Deutsche Telekom AG
4355 216 390 EarthLink, Inc.
6517 212 237 Yipes Communications, Inc.
14824 201 226 NewSouth Communications Corp.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:757 13:1 15:6 16:1 17:3
20:7 24:870 32:88 38:43 40:23 43:1
44:2 55:1 56:1 57:14 61:341 62:462
63:1840 64:1803 65:1790 66:2195 67:279 68:591
69:335 80:443 81:172 82:33 128:161 129:159
130:68 131:82 132:18 134:174 135:15 136:187
137:112 138:136 139:50 140:188 141:140 142:110
143:48 144:63 145:39 146:286 147:71 148:311
149:85 150:118 151:60 152:209 153:58 154:1
155:129 156:60 157:61 158:139 159:136 160:46
161:49 162:364 163:74 164:324 165:165 166:107
167:212 168:180 169:94 170:312 171:9 192:5461
193:2435 194:2008 195:1300 196:515 198:3630 199:2843
200:3019 201:3 202:4181 203:5321 204:2947 205:2028
206:2290 207:2620 208:2493 209:2794 210:948 211:399
212:895 213:973 214:17 215:24 216:3361 217:794
218:116 219:83 220:118 221:17 222:1
End of report
