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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 10 May, 2004
Analysis Summary
----------------
BGP routing table entries examined: 137690
Prefixes after maximum aggregation: 83499
Unique aggregates announced to Internet: 66557
Total ASes present in the Internet Routing Table: 17181
Origin-only ASes present in the Internet Routing Table: 14911
Origin ASes announcing only one prefix: 6909
Transit ASes present in the Internet Routing Table: 2270
Transit-only ASes present in the Internet Routing Table: 77
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: 1302145208
Equivalent to 77 /8s, 157 /16s and 40 /24s
Percentage of available address space announced: 35.1
Percentage of allocated address space announced: 57.7
Percentage of available address space allocated: 60.9
Total number of prefixes smaller than registry allocations: 100515
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 26217
Total APNIC prefixes after maximum aggregation: 13635
Prefixes being announced from the APNIC address blocks: 24537
Unique aggregates announced from the APNIC address blocks: 13702
APNIC Region origin ASes present in the Internet Routing Table: 2048
APNIC Region origin ASes announcing only one prefix: 609
APNIC Region transit ASes present in the Internet Routing Table: 321
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 146408704
Equivalent to 8 /8s, 186 /16s and 5 /24s
Percentage of available APNIC address space announced: 66.8
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: 79210
Total ARIN prefixes after maximum aggregation: 48937
Prefixes being announced from the ARIN address blocks: 61238
Unique aggregates announced from the ARIN address blocks: 21322
ARIN Region origin ASes present in the Internet Routing Table: 9161
ARIN Region origin ASes announcing only one prefix: 3261
ARIN Region transit ASes present in the Internet Routing Table: 902
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 222896416
Equivalent to 13 /8s, 73 /16s and 33 /24s
Percentage of available ARIN address space announced: 73.8
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: 25292
Total RIPE prefixes after maximum aggregation: 18035
Prefixes being announced from the RIPE address blocks: 22101
Unique aggregates announced from the RIPE address blocks: 14600
RIPE Region origin ASes present in the Internet Routing Table: 5429
RIPE Region origin ASes announcing only one prefix: 2913
RIPE Region transit ASes present in the Internet Routing Table: 932
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 160333824
Equivalent to 9 /8s, 142 /16s and 128 /24s
Percentage of available RIPE address space announced: 56.2
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: 5818
Total LACNIC prefixes after maximum aggregation: 2217
Prefixes being announced from the LACNIC address blocks: 5476
Unique aggregates announced from the LACNIC address blocks: 3430
LACNIC Region origin ASes present in the Internet Routing Table: 373
LACNIC Region origin ASes announcing only one prefix: 103
LACNIC Region transit ASes present in the Internet Routing Table: 73
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 14772480
Equivalent to 0 /8s, 225 /16s and 105 /24s
Percentage of available LACNIC address space announced: 44.0
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1152
Total AfriNIC prefixes after maximum aggregation: 675
Prefixes being announced from the AfriNIC address blocks: 765
Unique aggregates announced from the AfriNIC address blocks: 570
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: 4.9
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 1849856
Equivalent to 0 /8s, 28 /16s and 58 /24s
Percentage of available AfriNIC address space announced: 11.0
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 852 1091 618 Telstra Pty Ltd
4134 769 3482 139 Data Communications Bureau
4766 482 2901 258 Korea Internet Exchange for "
9583 464 40 81 Satyam Infoway Ltd.,
4755 356 125 50 Videsh Sanchar Nigam Ltd. Aut
9443 353 69 78 Primus Telecommunications
2907 351 1840 328 SINET Japan
9929 342 155 31 China Netcom Corp.
17676 341 5084 33 XTAGE CORPORATION
703 332 375 259 UUNET
17557 325 23 165 Pakistan Telecom
2764 292 274 240 connect.com.au pty ltd
7474 271 268 210 Optus Communications Pty Ltd
9942 222 71 126 COMindico Australia
9800 219 364 59 CHINA UNICOM
4780 212 193 26 Digital United Inc.
9498 190 31 45 BHARTI BT INTERNET LTD.
4837 182 1683 105 chinanet IDC center beijing n
9304 171 161 25 Hutchison Telecom (HK)
7633 159 23 43 Software Technology Parks of
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1455 6927 1011 AT&T
701 1319 8542 945 UUNET Technologies, Inc.
1239 932 3016 632 Sprint
3356 893 10951 684 Level 3 Communications, LLC
209 739 3469 502 Qwest
4323 719 561 200 Time Warner Communications, I
18566 701 192 8 Covad Communications
6197 698 517 265 BellSouth Network Solutions,
6198 568 372 210 BellSouth Network Solutions,
20115 519 827 265 Charter Communications
852 513 1142 404 Telus Advanced Communications
7066 505 208 274 Virginia Polytechnic Institut
7843 500 643 112 Adelphia Corp.
7132 451 7864 334 Southwestern Bell Internet Se
2386 426 593 232 AT&T Data Communications Serv
6347 401 388 94 SAVVIS Communications Corpora
705 398 145 273 UUNET Technologies, Inc.
4355 391 323 101 EarthLink, Inc.
22909 387 839 36 Comcast Cable Corporation
376 380 343 112 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 653 2022 548 UUNET - Commercial IP service
3320 297 2477 237 Deutsche Telekom AG
3301 269 968 259 TeliaNet Sweden
8220 267 412 255 COLT Internet - International
680 244 2025 239 DFN-IP service G-WiN
1257 243 511 196 SWIPnet Swedish IP Network
13083 216 51 8 Mannesmann Datenverarbeitung
5515 201 779 143 Sonera Solution Autonomous Sy
3246 199 450 196 Song Networks
719 197 288 103 LANLINK autonomous system
3215 177 837 70 France Telecom Transpac
786 175 1826 175 The JANET IP Service
25186 175 188 116 France Telecom Transpac's Tra
8708 174 111 163 Romania Data Systems S.A.
5400 154 238 135 BT Ignite European Backbone
6746 138 28 114 Dynamic Network Technologies,
3269 134 1101 65 TELECOM ITALIA
3303 130 606 130 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 382 122 69 ImpSat
8151 267 373 129 UniNet S.A. de C.V.
11172 215 79 50 Servicios Alestra S.A de C.V
16814 171 11 6 NSS, S.A.
6147 156 82 21 Telefonica Del Peru
7303 142 53 29 Telecom Argentina Stet-France
6505 132 90 91 Global One Communicaoes Ltda
6503 130 219 89 AVANTEL, S.A.
11556 88 73 25 Cable-Wireless Panama
11992 88 9 28 Integrated Systems
6535 80 5 20 Chilesat Servicios Empresari
15311 74 18 37 Telefonica Empresas
14535 71 6 5 Techtel S.A.
4270 70 18 9 Red de Interconexion Universi
11311 69 7 19 Sinectis S.A.
14259 69 4 5 GTD Internet S.A.
14420 69 4 28 ANDINATEL S.A.
7080 64 4 1 Electronica y Comunicaciones
10292 64 6 25 TELECOMMUNICATIONS OF JAMAICA
5639 62 8 8 Telecommunications Services o
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 29 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 13 6 12 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 701 693 Covad Communications
4134 769 630 Data Communications Bureau
4323 719 519 Time Warner Communications, I
6197 698 433 BellSouth Network Solutions,
7843 500 388 Adelphia Corp.
9583 464 383 Satyam Infoway Ltd.,
701 1319 374 UUNET Technologies, Inc.
5668 379 363 Century Telephone
6198 568 358 BellSouth Network Solutions,
22909 387 351 Comcast Cable Corporation
27364 365 346 Armstrong Cable Services
22773 369 329 Cox Communications, Inc. Atla
6140 382 313 ImpSat
9929 342 311 China Netcom Corp.
17676 341 308 XTAGE CORPORATION
6347 401 307 SAVVIS Communications Corpora
4755 356 306 Videsh Sanchar Nigam Ltd. Aut
1239 932 300 Sprint
4355 391 290 EarthLink, Inc.
9443 353 275 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 21242 Menasat - GDBC ,Glob
30306 UNALLOCATED 212.85.220.0/22 21242 Menasat - GDBC ,Glob
30306 UNALLOCATED 212.85.221.0/24 21242 Menasat - GDBC ,Glob
30306 UNALLOCATED 212.85.222.0/24 21242 Menasat - GDBC ,Glob
30306 UNALLOCATED 212.85.223.0/24 21242 Menasat - GDBC ,Glob
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 /8:19 /9:3 /10:6 /11:16 /12:58
/13:114 /14:294 /15:507 /16:7743 /17:1998 /18:3567
/19:9365 /20:9812 /21:7079 /22:10127 /23:11458 /24:74814
/25:211 /26:258 /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
7018 1091 1455 AT&T
701 995 1319 UUNET Technologies, Inc.
1221 758 852 Telstra Pty Ltd
18566 684 701 Covad Communications
1239 665 932 Sprint
3356 650 893 Level 3 Communications, LLC
6197 586 698 BellSouth Network Solutions,
4323 505 719 Time Warner Communications, I
209 490 739 Qwest
7066 477 505 Virginia Polytechnic Institut
6198 458 568 BellSouth Network Solutions,
9583 451 464 Satyam Infoway Ltd.,
702 434 653 UUNET - Commercial IP service
4766 395 482 Korea Internet Exchange for "
5668 360 379 Century Telephone
6140 357 382 ImpSat
705 353 398 UUNET Technologies, Inc.
27364 353 365 Armstrong Cable Services
852 352 513 Telus Advanced Communications
2386 347 426 AT&T Data Communications Serv
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:816 13:1 15:4 16:1 17:3
20:8 24:722 32:96 38:66 40:54 44:3
55:1 56:4 57:13 61:409 62:479 63:1846
64:1872 65:1990 66:2509 67:309 68:512 69:530
70:64 80:504 81:283 82:164 83:57 128:144
129:205 130:77 131:89 132:18 133:1 134:184
135:17 136:186 137:104 138:149 139:39 140:154
141:134 142:113 143:54 144:91 145:41 146:294
147:77 148:370 149:113 150:93 151:64 152:184
153:62 154:1 155:123 156:57 157:54 158:144
159:146 160:51 161:53 162:380 163:74 164:301
165:160 166:99 167:219 168:220 169:104 170:286
171:8 192:5531 193:2693 194:2027 195:1372 196:542
198:3657 199:3034 200:3259 201:8 202:4548 203:5526
204:3005 205:1973 206:2275 207:2499 208:2285 209:2834
210:1380 211:518 212:956 213:1140 214:37 215:28
216:3381 217:907 218:171 219:100 220:212 221:28
222:28
End of report
