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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 17 May, 2004
Analysis Summary
----------------
BGP routing table entries examined: 137728
Prefixes after maximum aggregation: 83552
Unique aggregates announced to Internet: 66419
Total ASes present in the Internet Routing Table: 17228
Origin-only ASes present in the Internet Routing Table: 14927
Origin ASes announcing only one prefix: 6949
Transit ASes present in the Internet Routing Table: 2301
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: 9
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 17
Number of addresses announced to Internet: 1287812088
Equivalent to 76 /8s, 194 /16s and 115 /24s
Percentage of available address space announced: 34.7
Percentage of allocated address space announced: 57.0
Percentage of available address space allocated: 60.9
Total number of prefixes smaller than registry allocations: 61855
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 26285
Total APNIC prefixes after maximum aggregation: 13526
Prefixes being announced from the APNIC address blocks: 24610
Unique aggregates announced from the APNIC address blocks: 13412
APNIC Region origin ASes present in the Internet Routing Table: 2054
APNIC Region origin ASes announcing only one prefix: 613
APNIC Region transit ASes present in the Internet Routing Table: 331
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 146598912
Equivalent to 8 /8s, 188 /16s and 236 /24s
Percentage of available APNIC address space announced: 66.9
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: 79002
Total ARIN prefixes after maximum aggregation: 49026
Prefixes being announced from the ARIN address blocks: 60972
Unique aggregates announced from the ARIN address blocks: 21292
ARIN Region origin ASes present in the Internet Routing Table: 9178
ARIN Region origin ASes announcing only one prefix: 3276
ARIN Region transit ASes present in the Internet Routing Table: 910
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 224362784
Equivalent to 13 /8s, 95 /16s and 129 /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: 25427
Total RIPE prefixes after maximum aggregation: 18085
Prefixes being announced from the RIPE address blocks: 22232
Unique aggregates announced from the RIPE address blocks: 14696
RIPE Region origin ASes present in the Internet Routing Table: 5451
RIPE Region origin ASes announcing only one prefix: 2932
RIPE Region transit ASes present in the Internet Routing Table: 945
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 161117184
Equivalent to 9 /8s, 154 /16s and 116 /24s
Percentage of available RIPE address space announced: 56.5
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: 5865
Total LACNIC prefixes after maximum aggregation: 2239
Prefixes being announced from the LACNIC address blocks: 5525
Unique aggregates announced from the LACNIC address blocks: 3443
LACNIC Region origin ASes present in the Internet Routing Table: 377
LACNIC Region origin ASes announcing only one prefix: 105
LACNIC Region transit ASes present in the Internet Routing Table: 72
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 14902784
Equivalent to 0 /8s, 227 /16s and 102 /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: 676
Prefixes being announced from the AfriNIC address blocks: 770
Unique aggregates announced from the AfriNIC address blocks: 572
AfriNIC Region origin ASes present in the Internet Routing Table: 92
AfriNIC Region origin ASes announcing only one prefix: 23
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: 15
Number of AfriNIC addresses announced to Internet: 1854464
Equivalent to 0 /8s, 28 /16s and 76 /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 853 1091 616 Telstra Pty Ltd
4134 768 3482 139 Data Communications Bureau
4766 484 2903 258 Korea Internet Exchange for "
9583 474 44 12 Satyam Infoway Ltd.,
4755 354 125 50 Videsh Sanchar Nigam Ltd. Aut
9443 352 69 78 Primus Telecommunications
2907 351 1840 328 SINET Japan
9929 344 156 33 China Netcom Corp.
17676 341 5084 33 XTAGE CORPORATION
703 330 375 257 UUNET
17557 327 23 164 Pakistan Telecom
2764 295 275 242 connect.com.au pty ltd
7474 268 268 210 Optus Communications Pty Ltd
9942 228 71 125 COMindico Australia
9800 219 366 58 CHINA UNICOM
4780 212 193 26 Digital United Inc.
9498 194 31 45 BHARTI BT INTERNET LTD.
4837 175 1679 104 chinanet IDC center beijing n
17974 175 51 103 PT TELEKOMUNIKASI INDONESIA
9304 170 161 25 Hutchison Telecom (HK)
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1431 6888 997 AT&T
701 1319 8544 945 UUNET Technologies, Inc.
1239 936 3016 634 Sprint
3356 898 10948 681 Level 3 Communications, LLC
209 736 3469 503 Qwest
4323 725 561 200 Time Warner Communications, I
18566 704 192 8 Covad Communications
6197 701 517 267 BellSouth Network Solutions,
6198 569 372 210 BellSouth Network Solutions,
20115 536 848 273 Charter Communications
852 512 1142 403 Telus Advanced Communications
7066 501 208 274 Virginia Polytechnic Institut
7843 496 644 116 Adelphia Corp.
7132 450 7868 334 Southwestern Bell Internet Se
2386 427 593 231 AT&T Data Communications Serv
6347 401 388 90 SAVVIS Communications Corpora
705 398 145 273 UUNET Technologies, Inc.
4355 391 323 101 EarthLink, Inc.
22909 386 840 29 Comcast Cable Corporation
376 381 343 112 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 650 2037 545 UUNET - Commercial IP service
3320 298 2477 238 Deutsche Telekom AG
3301 272 1096 262 TeliaNet Sweden
8220 272 428 259 COLT Internet - International
680 244 2025 239 DFN-IP service G-WiN
1257 240 493 196 SWIPnet Swedish IP Network
13083 216 51 8 Mannesmann Datenverarbeitung
3246 203 461 200 Song Networks
5515 202 795 144 Sonera Solution Autonomous Sy
719 194 288 102 LANLINK autonomous system
3215 177 835 69 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
5400 149 225 130 BT Ignite European Backbone
6746 138 28 114 Dynamic Network Technologies,
3269 137 1101 65 TELECOM ITALIA
3303 134 611 134 Swisscom Ltd
12302 122 18 29 MobiFon S.A.
1273 112 166 88 Cable & Wireless Deutschland
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 385 123 70 ImpSat
8151 270 373 129 UniNet S.A. de C.V.
11172 213 80 51 Servicios Alestra S.A de C.V
16814 171 11 6 NSS, S.A.
6147 160 82 21 Telefonica Del Peru
7303 143 53 32 Telecom Argentina Stet-France
6505 133 90 91 Global One Communicaoes Ltda
6503 130 219 89 AVANTEL, S.A.
11992 88 9 28 Integrated Systems
11556 87 57 24 Cable-Wireless Panama
6535 78 5 20 Chilesat Servicios Empresari
15311 74 18 37 Telefonica Empresas
5639 72 8 8 Telecommunications Services o
4270 71 18 9 Red de Interconexion Universi
14535 71 6 5 Techtel S.A.
14420 70 4 29 ANDINATEL S.A.
11311 69 7 19 Sinectis S.A.
14259 68 4 5 GTD Internet S.A.
10292 65 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 106 8 3 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 89 272 79 The Internetworking Company o
11845 36 9 11 Data Pro Business Online
24835 31 18 6 RAYA Telecom - Egypt
9129 28 3 4 UUNET Kenya
5713 26 125 24 Telkom SA Ltd
16637 25 9 18 Johnnic e-Ventures
6713 24 38 9 Itissalat Al-MAGHRIB
12455 24 4 2 Jambonet Autonomous system
14988 24 16 1 Botswana Telecommunications C
8524 23 2 4 AUCEGYPT Autonomous System
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 14 22 13 SONATEL-AS Autonomous System
15808 13 1 5 Communication Solutions Ltd i
17148 13 1 7 First National Bank
2609 12 26 4 Tunisia BackBone AS
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 704 696 Covad Communications
4134 768 629 Data Communications Bureau
4323 725 525 Time Warner Communications, I
9583 474 462 Satyam Infoway Ltd.,
6197 701 434 BellSouth Network Solutions,
7843 496 380 Adelphia Corp.
701 1319 374 UUNET Technologies, Inc.
5668 379 362 Century Telephone
6198 569 359 BellSouth Network Solutions,
22909 386 357 Comcast Cable Corporation
27364 359 340 Armstrong Cable Services
22773 370 329 Cox Communications, Inc. Atla
6140 385 315 ImpSat
6347 401 311 SAVVIS Communications Corpora
9929 344 311 China Netcom Corp.
17676 341 308 XTAGE CORPORATION
4755 354 304 Videsh Sanchar Nigam Ltd. Aut
1239 936 302 Sprint
4355 391 290 EarthLink, Inc.
9443 352 274 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
18416 UNALLOCATED 61.56.96.0/24 9919 New Century InfoComm
18416 UNALLOCATED 61.56.96.0/20 9919 New Century InfoComm
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
18412 UNALLOCATED 211.77.0.0/19 9674 Far EastTone Telecom
30306 UNALLOCATED 212.85.220.0/24 5713 Telkom SA Ltd
30306 UNALLOCATED 212.85.220.0/22 5713 Telkom SA Ltd
30306 UNALLOCATED 212.85.221.0/24 5713 Telkom SA Ltd
30306 UNALLOCATED 212.85.222.0/24 5713 Telkom SA Ltd
30306 UNALLOCATED 212.85.223.0/24 5713 Telkom SA Ltd
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
192.83.16.0/20 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
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 /11:16 /12:59
/13:118 /14:293 /15:508 /16:7747 /17:2017 /18:3583
/19:9368 /20:9841 /21:7138 /22:10132 /23:11458 /24:74704
/25:214 /26:264 /27:141 /28:30 /29:5 /30:53
/31:0 /32:12
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 687 704 Covad Communications
7018 541 1431 AT&T
6197 533 701 BellSouth Network Solutions,
3356 507 898 Level 3 Communications, LLC
6198 405 569 BellSouth Network Solutions,
702 395 650 UUNET - Commercial IP service
7066 395 501 Virginia Polytechnic Institut
701 367 1319 UUNET Technologies, Inc.
1239 362 936 Sprint
27364 347 359 Armstrong Cable Services
5668 331 379 Century Telephone
9583 309 474 Satyam Infoway Ltd.,
4766 307 484 Korea Internet Exchange for "
20115 275 536 Charter Communications
9929 274 344 China Netcom Corp.
14824 250 275 NewSouth Communications Corp.
690 247 283 Merit Network
3320 245 298 Deutsche Telekom AG
25844 243 243 Skadden, Arps, Slate, Meagher
13609 234 275 Choice One Communications Inc
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:816 13:1 15:5 16:1 17:3
20:8 24:718 32:96 38:67 40:54 44:3
55:1 56:4 57:14 61:408 62:485 63:1848
64:1826 65:1986 66:2479 67:308 68:514 69:543
70:64 80:503 81:289 82:175 83:57 128:147
129:199 130:77 131:110 132:18 133:1 134:179
135:17 136:186 137:104 138:149 139:38 140:154
141:126 142:116 143:54 144:91 145:42 146:293
147:76 148:374 149:115 150:93 151:65 152:166
153:62 154:1 155:124 156:58 157:54 158:145
159:147 160:52 161:54 162:380 163:75 164:328
165:160 166:99 167:218 168:222 169:105 170:285
171:8 192:5530 193:2699 194:2042 195:1361 196:547
198:3660 199:3042 200:3302 201:8 202:4553 203:5529
204:3013 205:1981 206:2242 207:2436 208:2239 209:2792
210:1370 211:499 212:952 213:1145 214:41 215:28
216:3381 217:916 218:171 219:102 220:215 221:28
222:34
End of report
