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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 28 May, 2004
Analysis Summary
----------------
BGP routing table entries examined: 138022
Prefixes after maximum aggregation: 84007
Unique aggregates announced to Internet: 67496
Total ASes present in the Internet Routing Table: 17294
Origin-only ASes present in the Internet Routing Table: 14998
Origin ASes announcing only one prefix: 6971
Transit ASes present in the Internet Routing Table: 2296
Transit-only ASes present in the Internet Routing Table: 75
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 26
Illegal AS announcements present in the Routing Table: 12
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 19
Number of addresses announced to Internet: 1291084540
Equivalent to 76 /8s, 244 /16s and 98 /24s
Percentage of available address space announced: 34.8
Percentage of allocated address space announced: 57.2
Percentage of available address space allocated: 60.9
Total number of prefixes smaller than registry allocations: 61940
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 26450
Total APNIC prefixes after maximum aggregation: 13844
Prefixes being announced from the APNIC address blocks: 24755
Unique aggregates announced from the APNIC address blocks: 13895
APNIC Region origin ASes present in the Internet Routing Table: 2060
APNIC Region origin ASes announcing only one prefix: 610
APNIC Region transit ASes present in the Internet Routing Table: 334
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 148384512
Equivalent to 8 /8s, 216 /16s and 43 /24s
Percentage of available APNIC address space announced: 67.7
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 78857
Total ARIN prefixes after maximum aggregation: 49071
Prefixes being announced from the ARIN address blocks: 61090
Unique aggregates announced from the ARIN address blocks: 21669
ARIN Region origin ASes present in the Internet Routing Table: 9208
ARIN Region origin ASes announcing only one prefix: 3284
ARIN Region transit ASes present in the Internet Routing Table: 903
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 224509728
Equivalent to 13 /8s, 97 /16s and 191 /24s
Percentage of available ARIN address space announced: 74.3
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
31744 - 32767
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/8, 198/7, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 25494
Total RIPE prefixes after maximum aggregation: 18181
Prefixes being announced from the RIPE address blocks: 22300
Unique aggregates announced from the RIPE address blocks: 14862
RIPE Region origin ASes present in the Internet Routing Table: 5484
RIPE Region origin ASes announcing only one prefix: 2949
RIPE Region transit ASes present in the Internet Routing Table: 937
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 162884608
Equivalent to 9 /8s, 181 /16s and 108 /24s
Percentage of available RIPE address space announced: 57.1
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, 80/5, 88/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 6066
Total LACNIC prefixes after maximum aggregation: 2239
Prefixes being announced from the LACNIC address blocks: 5711
Unique aggregates announced from the LACNIC address blocks: 3499
LACNIC Region origin ASes present in the Internet Routing Table: 379
LACNIC Region origin ASes announcing only one prefix: 107
LACNIC Region transit ASes present in the Internet Routing Table: 74
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 14905344
Equivalent to 0 /8s, 227 /16s and 112 /24s
Percentage of available LACNIC address space announced: 44.4
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1148
Total AfriNIC prefixes after maximum aggregation: 672
Prefixes being announced from the AfriNIC address blocks: 779
Unique aggregates announced from the AfriNIC address blocks: 586
AfriNIC Region origin ASes present in the Internet Routing Table: 91
AfriNIC Region origin ASes announcing only one prefix: 21
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: 1864960
Equivalent to 0 /8s, 28 /16s and 117 /24s
Percentage of available AfriNIC address space announced: 11.1
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 849 1091 612 Telstra Pty Ltd
4134 735 3516 142 Data Communications Bureau
4766 487 2892 262 Korea Internet Exchange for "
9583 394 31 130 Satyam Infoway Ltd.,
4755 358 125 51 Videsh Sanchar Nigam Ltd. Aut
9443 354 69 78 Primus Telecommunications
2907 353 1841 330 SINET Japan
9929 347 156 33 China Netcom Corp.
17676 341 5084 33 XTAGE CORPORATION
17557 330 23 165 Pakistan Telecom
703 328 375 255 UUNET
2764 296 275 242 connect.com.au pty ltd
7474 265 268 208 Optus Communications Pty Ltd
9942 230 71 127 COMindico Australia
9800 225 367 62 CHINA UNICOM
9498 219 48 47 BHARTI BT INTERNET LTD.
4780 210 193 26 Digital United Inc.
17974 182 35 106 PT TELEKOMUNIKASI INDONESIA
4837 181 2003 108 chinanet IDC center beijing n
10036 180 16 168 C&M Communication Co. Ltd.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1446 6892 1006 AT&T
701 1308 8544 937 UUNET Technologies, Inc.
1239 942 3033 644 Sprint
3356 894 10900 678 Level 3 Communications, LLC
209 741 3458 503 Qwest
4323 730 578 201 Time Warner Communications, I
6197 707 521 272 BellSouth Network Solutions,
18566 705 192 8 Covad Communications
6198 557 368 211 BellSouth Network Solutions,
20115 553 365 286 Charter Communications
852 516 1142 406 Telus Advanced Communications
7843 499 647 117 Adelphia Corp.
7132 447 7851 333 Southwestern Bell Internet Se
2386 428 584 232 AT&T Data Communications Serv
705 403 147 277 UUNET Technologies, Inc.
6347 401 391 90 SAVVIS Communications Corpora
4355 391 323 101 EarthLink, Inc.
22909 390 843 25 Comcast Cable Corporation
376 384 359 112 Reseau Interordinateurs Scien
5668 379 71 16 Century Telephone
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 650 2038 545 UUNET - Commercial IP service
3320 297 2477 237 Deutsche Telekom AG
8220 274 429 262 COLT Internet - International
3301 273 1096 263 TeliaNet Sweden
680 244 2025 239 DFN-IP service G-WiN
1257 244 495 199 SWIPnet Swedish IP Network
13083 216 51 8 Mannesmann Datenverarbeitung
3246 199 463 196 Song Networks
5515 198 779 143 Sonera Solution Autonomous Sy
719 183 288 102 LANLINK autonomous system
3215 177 831 68 France Telecom Transpac
8708 174 111 163 Romania Data Systems S.A.
25186 174 172 115 France Telecom Transpac's Tra
786 173 1794 173 The JANET IP Service
6746 154 29 127 Dynamic Network Technologies,
5400 144 208 122 BT Ignite European Backbone
3269 137 1101 65 TELECOM ITALIA
3303 132 611 132 Swisscom Ltd
12302 123 18 29 MobiFon S.A.
8866 115 13 6 Bulgarian Telecommunication C
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
11172 359 80 55 Servicios Alestra S.A de C.V
6140 344 124 66 ImpSat
8151 268 373 129 UniNet S.A. de C.V.
16814 203 13 7 NSS, S.A.
6147 160 82 21 Telefonica Del Peru
7303 143 53 32 Telecom Argentina Stet-France
6505 134 90 92 Global One Communicaoes Ltda
6503 130 219 89 AVANTEL, S.A.
11992 89 9 28 Integrated Systems
11556 87 57 24 Cable-Wireless Panama
6535 79 5 16 Chilesat Servicios Empresari
14420 77 5 31 ANDINATEL S.A.
15311 75 19 37 Telefonica Empresas
5639 72 8 8 Telecommunications Services o
4270 71 18 9 Red de Interconexion Universi
14535 70 6 5 Techtel S.A.
11311 69 7 19 Sinectis S.A.
14259 67 4 5 GTD Internet S.A.
10292 66 6 25 TELECOMMUNICATIONS OF JAMAICA
7080 64 4 1 Electronica y Comunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 254 632 219 The Internet Solution
5536 107 8 3 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 90 276 80 The Internetworking Company o
11845 37 9 11 Data Pro Business Online
24835 31 18 6 RAYA Telecom - Egypt
5713 26 125 24 Telkom SA Ltd
9129 25 3 4 UUNET Kenya
16637 25 9 18 Johnnic e-Ventures
6713 24 38 9 Itissalat Al-MAGHRIB
8524 24 2 4 AUCEGYPT Autonomous System
12455 24 4 2 Jambonet Autonomous system
14988 24 16 1 Botswana Telecommunications C
10798 18 1 12 Standard Bank of South Africa
15706 16 2 3 Sudatel Internet Exchange Aut
12258 15 3 10 Vodacom Internet Company
8346 13 6 12 SONATEL-AS Autonomous System
17148 13 1 7 First National Bank
2609 12 26 4 Tunisia BackBone AS
15808 12 1 4 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 705 697 Covad Communications
4134 735 593 Data Communications Bureau
4323 730 529 Time Warner Communications, I
6197 707 435 BellSouth Network Solutions,
7843 499 382 Adelphia Corp.
701 1308 371 UUNET Technologies, Inc.
22909 390 365 Comcast Cable Corporation
5668 379 363 Century Telephone
6198 557 346 BellSouth Network Solutions,
27364 363 344 Armstrong Cable Services
22773 374 328 Cox Communications, Inc. Atla
9929 347 314 China Netcom Corp.
6347 401 311 SAVVIS Communications Corpora
17676 341 308 XTAGE CORPORATION
4755 358 307 Videsh Sanchar Nigam Ltd. Aut
11172 359 304 Servicios Alestra S.A de C.V
1239 942 298 Sprint
4355 391 290 EarthLink, Inc.
6140 344 278 ImpSat
9443 354 276 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64512 PRIVATE 61.17.25.0/24 10199 DishnetDSL Limited
18416 UNALLOCATED 61.56.96.0/24 9919 New Century InfoComm
18416 UNALLOCATED 61.56.96.0/20 9919 New Century InfoComm
18416 UNALLOCATED 61.56.97.0/24 9919 New Century InfoComm
18416 UNALLOCATED 61.56.98.0/24 9919 New Century InfoComm
65501 PRIVATE 66.60.187.0/24 14051 Roseville Telephone
65501 PRIVATE 66.60.188.0/22 14051 Roseville Telephone
65001 PRIVATE 148.235.124.0/24 8151 UniNet S.A. de C.V.
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
65001 PRIVATE 200.79.116.0/24 8151 UniNet S.A. de C.V.
65502 PRIVATE 203.97.150.0/24 7714 TelstraClear
18412 UNALLOCATED 211.77.0.0/19 9674 Far EastTone Telecom
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 568 DISO-UNRRA
137.0.0.0/13 568 DISO-UNRRA
156.154.16.0/22 7786 Lockheed Martin IMS
158.0.0.0/13 568 DISO-UNRRA
164.234.0.0/18 721 DLA Systems Automation Center
164.234.0.0/16 721 DLA Systems Automation Center
192.43.230.0/24 4738 South Australian Academic Res
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
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
192.84.205.0/24 719 LANLINK autonomous system
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
223.255.0.0/16 1239 Sprint
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:18 /9:3 /10:6 /11:15 /12:59
/13:122 /14:294 /15:512 /16:7718 /17:2016 /18:3597
/19:9381 /20:9852 /21:7202 /22:10218 /23:11510 /24:74782
/25:217 /26:257 /27:137 /28:31 /29:8 /30:55
/31:0 /32:12
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 688 705 Covad Communications
7018 556 1446 AT&T
6197 538 707 BellSouth Network Solutions,
3356 509 894 Level 3 Communications, LLC
702 395 650 UUNET - Commercial IP service
6198 394 557 BellSouth Network Solutions,
701 366 1308 UUNET Technologies, Inc.
1239 363 942 Sprint
27364 351 363 Armstrong Cable Services
5668 332 379 Century Telephone
4766 310 487 Korea Internet Exchange for "
20115 294 553 Charter Communications
9929 277 347 China Netcom Corp.
14824 251 276 NewSouth Communications Corp.
690 247 283 Merit Network
3320 246 297 Deutsche Telekom AG
25844 244 244 Skadden, Arps, Slate, Meagher
9583 243 394 Satyam Infoway Ltd.,
13609 236 277 Choice One Communications Inc
6517 235 261 Yipes Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:817 13:1 15:5 16:2 17:3
20:8 24:730 32:101 38:69 40:54 44:3
55:1 56:3 57:15 61:381 62:482 63:1825
64:1840 65:1994 66:2516 67:314 68:519 69:523
70:64 80:497 81:292 82:169 83:62 128:146
129:187 130:77 131:79 132:16 133:1 134:180
135:17 136:186 137:92 138:141 139:42 140:157
141:126 142:117 143:50 144:86 145:42 146:301
147:76 148:403 149:118 150:93 151:71 152:165
153:62 154:1 155:120 156:60 157:59 158:144
159:146 160:52 161:55 162:377 163:75 164:158
165:161 166:99 167:219 168:226 169:106 170:286
171:8 192:5501 193:2724 194:2019 195:1345 196:555
198:3644 199:3021 200:3474 201:7 202:4588 203:5568
204:3018 205:1979 206:2219 207:2435 208:2249 209:2769
210:1376 211:555 212:960 213:1168 214:27 215:26
216:3386 217:919 218:168 219:109 220:233 221:28
222:36
End of report
