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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 20 Nov, 2003
Analysis Summary
----------------
BGP routing table entries examined: 130348
Prefixes after maximum aggregation: 80590
Unique aggregates announced to Internet: 62451
Total ASes present in the Internet Routing Table: 16212
Origin-only ASes present in the Internet Routing Table: 14066
Origin ASes announcing only one prefix: 6444
Transit ASes present in the Internet Routing Table: 2146
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: 1260094564
Equivalent to 75 /8s, 27 /16s and 132 /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: 57629
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 23691
Total APNIC prefixes after maximum aggregation: 12973
Prefixes being announced from the APNIC address blocks: 22051
Unique aggregates announced from the APNIC address blocks: 12591
APNIC Region origin ASes present in the Internet Routing Table: 1946
APNIC Region origin ASes announcing only one prefix: 577
APNIC Region transit ASes present in the Internet Routing Table: 317
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 128332544
Equivalent to 7 /8s, 166 /16s and 51 /24s
Percentage of available APNIC address space announced: 69.1
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: 77018
Total ARIN prefixes after maximum aggregation: 47909
Prefixes being announced from the ARIN address blocks: 59748
Unique aggregates announced from the ARIN address blocks: 20628
ARIN Region origin ASes present in the Internet Routing Table: 8753
ARIN Region origin ASes announcing only one prefix: 3047
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: 209439136
Equivalent to 12 /8s, 123 /16s and 201 /24s
Percentage of available ARIN address space announced: 73.4
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: 22986
Total RIPE prefixes after maximum aggregation: 16788
Prefixes being announced from the RIPE address blocks: 19831
Unique aggregates announced from the RIPE address blocks: 13206
RIPE Region origin ASes present in the Internet Routing Table: 4983
RIPE Region origin ASes announcing only one prefix: 2684
RIPE Region transit ASes present in the Internet Routing Table: 882
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 141526016
Equivalent to 8 /8s, 111 /16s and 132 /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: 5542
Total LACNIC prefixes after maximum aggregation: 2219
Prefixes being announced from the LACNIC address blocks: 5057
Unique aggregates announced from the LACNIC address blocks: 3053
LACNIC Region origin ASes present in the Internet Routing Table: 363
LACNIC Region origin ASes announcing only one prefix: 106
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: 13491200
Equivalent to 0 /8s, 205 /16s and 220 /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: 1109
Total AfriNIC prefixes after maximum aggregation: 701
Prefixes being announced from the AfriNIC address blocks: 722
Unique aggregates announced from the AfriNIC address blocks: 555
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: 1753088
Equivalent to 0 /8s, 26 /16s and 192 /24s
Percentage of available AfriNIC address space announced: 10.4
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 957 1121 685 Telstra Pty Ltd
2907 374 1864 350 SINET Japan
4755 371 131 61 Videsh Sanchar Nigam Ltd. Aut
4134 369 2418 110 Data Communications Bureau
9443 338 72 83 Primus Telecommunications
703 325 355 258 UUNET
17557 301 21 149 Pakistan Telecom
17676 281 4156 32 XTAGE CORPORATION
2764 278 287 238 connect.com.au pty ltd
4766 264 2896 191 Korea Internet Exchange for "
7474 262 306 213 Optus Communications Pty Ltd
4538 248 1778 22 China Education and Research
3786 234 773 203 DACOM Corporation
9583 233 44 11 Satyam Infoway Ltd.,
9929 213 165 38 China Netcom Corp.
9800 207 343 57 CHINA UNICOM
9942 205 70 119 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 1376 7033 951 AT&T
1239 915 3108 661 Sprint
209 888 3475 541 Qwest
6197 752 434 212 BellSouth Network Solutions,
18566 728 176 8 Covad Communications
4323 689 593 200 Time Warner Communications, I
3356 631 10803 516 Level 3 Communications, LLC
6198 614 373 225 BellSouth Network Solutions,
20115 583 316 330 Charter Communications
7843 523 498 124 Adelphia Corp.
852 516 1107 409 Telus Advanced Communications
7066 510 207 271 Virginia Polytechnic Institut
7132 490 7225 306 Southwestern Bell Internet Se
19029 414 174 276 New Edge Networks
690 399 58 269 Merit Network
2386 398 543 206 AT&T Data Communications Serv
4355 391 329 101 EarthLink, Inc.
705 379 196 235 UUNET Technologies, Inc.
376 357 359 114 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 689 2092 571 UUNET - Commercial IP service
3301 313 1170 290 TeliaNet Sweden
3320 275 1988 230 Deutsche Telekom AG
8220 256 420 245 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 187 174 136 BT Ignite European Backbone
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 160 672 82 France Telecom Transpac
25186 157 185 102 France Telecom Transpac's Tra
3303 144 557 139 Swisscom Ltd
719 134 288 104 LANLINK autonomous system
3246 134 430 132 Song Networks
12302 126 18 33 MobiFon S.A.
2856 117 1294 108 BTnet UK Regional network
3269 117 911 64 TELECOM ITALIA
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 230 351 125 UniNet S.A. de C.V.
11172 192 77 42 Servicios Alestra S.A de C.V
7303 180 42 35 Telecom Argentina Stet-France
16814 156 10 5 NSS, S.A.
6505 135 91 95 Global One Communicaoes Ltda
6503 128 205 92 AVANTEL, S.A.
10620 122 8 26 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 248 632 218 The Internet Solution
2018 94 297 92 Tertiary Education Network
5536 87 7 22 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
9129 27 3 4 UUNET Kenya
16637 26 9 19 Johnnic e-Ventures
5713 24 93 22 Telkom SA Ltd
12455 24 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 752 540 BellSouth Network Solutions,
4323 689 489 Time Warner Communications, I
7018 1376 425 AT&T
7843 523 399 Adelphia Corp.
6198 614 389 BellSouth Network Solutions,
209 888 347 Qwest
27364 353 329 Armstrong Cable Services
4755 371 310 Videsh Sanchar Nigam Ltd. Aut
22909 312 302 Comcast Cable Corporation
5668 312 293 Century Telephone
4355 391 290 EarthLink, Inc.
22773 309 284 Cox Communications, Inc. Atla
6140 343 277 ImpSat
1221 957 272 Telstra Pty Ltd
4134 369 259 Data Communications Bureau
6347 335 256 SAVVIS Communications Corpora
9443 338 255 Primus Telecommunications
1239 915 254 Sprint
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 /17:1829 /18:3269
/19:8668 /20:9178 /21:6680 /22:9448 /23:10907 /24:71192
/25:178 /26:232 /27:166 /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 608 752 BellSouth Network Solutions,
7018 499 1376 AT&T
6198 475 614 BellSouth Network Solutions,
701 442 1434 UUNET Technologies, Inc.
702 412 689 UUNET - Commercial IP service
7066 402 510 Virginia Polytechnic Institut
20115 366 583 Charter Communications
690 360 399 Merit Network
27364 347 353 Armstrong Cable Services
1239 327 915 Sprint
3356 319 631 Level 3 Communications, LLC
209 311 888 Qwest
5668 278 312 Century Telephone
19029 264 414 New Edge Networks
25844 244 244 Skadden, Arps, Slate, Meagher
3320 218 275 Deutsche Telekom AG
4355 217 391 EarthLink, Inc.
6517 210 235 Yipes Communications, Inc.
14824 201 226 NewSouth Communications Corp.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:756 13:1 15:6 16:1 17:3
20:7 24:872 32:88 38:42 40:23 43:1
44:2 55:1 56:1 57:14 61:348 62:458
63:1845 64:1803 65:1792 66:2195 67:279 68:591
69:334 80:444 81:170 82:33 128:163 129:159
130:68 131:82 132:18 134:174 135:10 136:185
137:119 138:136 139:50 140:190 141:138 142:110
143:48 144:63 145:39 146:287 147:71 148:311
149:81 150:118 151:60 152:209 153:59 154:1
155:127 156:60 157:61 158:139 159:136 160:46
161:66 162:364 163:74 164:324 165:166 166:107
167:211 168:179 169:96 170:313 171:9 192:5457
193:2434 194:2004 195:1299 196:514 198:3621 199:2845
200:3022 201:3 202:4184 203:5341 204:2944 205:2028
206:2288 207:2619 208:2497 209:2795 210:955 211:396
212:891 213:985 214:17 215:24 216:3362 217:791
218:118 219:83 220:118 221:17 222:1
End of report
