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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 20 Jul, 2004
Analysis Summary
----------------
BGP routing table entries examined: 142578
Prefixes after maximum aggregation: 85643
Unique aggregates announced to Internet: 68610
Total ASes present in the Internet Routing Table: 17619
Origin-only ASes present in the Internet Routing Table: 15279
Origin ASes announcing only one prefix: 7157
Transit ASes present in the Internet Routing Table: 2340
Transit-only ASes present in the Internet Routing Table: 71
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 26
Prefixes from unregistered ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 19
Number of addresses announced to Internet: 1303649696
Equivalent to 77 /8s, 180 /16s and 29 /24s
Percentage of available address space announced: 35.2
Percentage of allocated address space announced: 57.7
Percentage of available address space allocated: 60.9
Total number of prefixes smaller than registry allocations: 65528
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 27435
Total APNIC prefixes after maximum aggregation: 14045
Prefixes being announced from the APNIC address blocks: 25651
Unique aggregates announced from the APNIC address blocks: 14005
APNIC Region origin ASes present in the Internet Routing Table: 2076
APNIC Region origin ASes announcing only one prefix: 623
APNIC Region transit ASes present in the Internet Routing Table: 332
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 153303744
Equivalent to 9 /8s, 35 /16s and 58 /24s
Percentage of available APNIC address space announced: 70.0
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: 81468
Total ARIN prefixes after maximum aggregation: 50082
Prefixes being announced from the ARIN address blocks: 63249
Unique aggregates announced from the ARIN address blocks: 21987
ARIN Region origin ASes present in the Internet Routing Table: 9324
ARIN Region origin ASes announcing only one prefix: 3339
ARIN Region transit ASes present in the Internet Routing Table: 912
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 227476768
Equivalent to 13 /8s, 143 /16s and 5 /24s
Percentage of available ARIN address space announced: 75.3
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 - 33791
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: 26312
Total RIPE prefixes after maximum aggregation: 18585
Prefixes being announced from the RIPE address blocks: 23106
Unique aggregates announced from the RIPE address blocks: 15310
RIPE Region origin ASes present in the Internet Routing Table: 5675
RIPE Region origin ASes announcing only one prefix: 3063
RIPE Region transit ASes present in the Internet Routing Table: 979
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 167366848
Equivalent to 9 /8s, 249 /16s and 208 /24s
Percentage of available RIPE address space announced: 58.7
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, 33792 - 34815
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: 6162
Total LACNIC prefixes after maximum aggregation: 2248
Prefixes being announced from the LACNIC address blocks: 5833
Unique aggregates announced from the LACNIC address blocks: 3579
LACNIC Region origin ASes present in the Internet Routing Table: 382
LACNIC Region origin ASes announcing only one prefix: 111
LACNIC Region transit ASes present in the Internet Routing Table: 75
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 15300864
Equivalent to 0 /8s, 233 /16s and 121 /24s
Percentage of available LACNIC address space announced: 45.6
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1198
Total AfriNIC prefixes after maximum aggregation: 683
Prefixes being announced from the AfriNIC address blocks: 809
Unique aggregates announced from the AfriNIC address blocks: 639
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: 4.9
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1900544
Equivalent to 0 /8s, 29 /16s and 0 /24s
Percentage of available AfriNIC address space announced: 11.3
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 820 1057 590 Telstra Pty Ltd
4134 810 4078 149 Data Communications Bureau
4766 498 2895 263 Korea Internet Exchange for "
9583 492 40 107 Satyam Infoway Ltd.,
4755 400 134 58 Videsh Sanchar Nigam Ltd. Aut
9443 353 69 78 Primus Telecommunications
2907 351 1840 325 SINET Japan
17676 341 5084 33 XTAGE CORPORATION
9929 328 159 31 China Netcom Corp.
17557 321 22 164 Pakistan Telecom
703 317 342 246 UUNET
2764 288 258 235 connect.com.au pty ltd
7474 267 269 206 Optus Communications Pty Ltd
9942 230 71 128 COMindico Australia
4802 225 25 140 Wantree Development
9800 225 369 62 CHINA UNICOM
9498 220 48 50 BHARTI BT INTERNET LTD.
17633 210 54 8 ASN for Shandong Provincial N
10036 198 18 179 C&M Communication Co. Ltd.
4837 191 2019 105 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1423 6877 989 AT&T
701 1301 8442 932 UUNET Technologies, Inc.
6347 954 390 126 SAVVIS Communications Corpora
1239 941 2892 626 Sprint
3356 894 10933 675 Level 3 Communications, LLC
4323 740 570 210 Time Warner Communications, I
18566 726 192 8 Covad Communications
6197 717 527 281 BellSouth Network Solutions,
209 611 3435 500 Qwest
20115 566 376 291 Charter Communications
7843 514 669 130 Adelphia Corp.
6198 512 396 214 BellSouth Network Solutions,
852 510 1142 398 Telus Advanced Communications
7132 478 7889 362 Southwestern Bell Internet Se
721 473 15374 338 DLA Systems Automation Center
2386 407 533 227 AT&T Data Communications Serv
22909 396 826 32 Comcast Cable Corporation
4355 391 323 101 EarthLink, Inc.
705 388 128 264 UUNET Technologies, Inc.
376 385 359 112 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 647 2039 539 UUNET - Commercial IP service
3320 299 2463 239 Deutsche Telekom AG
3301 282 1098 271 TeliaNet Sweden
8220 277 433 264 COLT Internet - International
680 244 2025 239 DFN-IP service G-WiN
1257 217 747 186 SWIPnet Swedish IP Network
13083 216 51 8 Mannesmann Datenverarbeitung
3246 214 483 211 Song Networks
5515 200 842 146 Sonera Solution Autonomous Sy
8708 192 113 176 Romania Data Systems S.A.
3215 182 895 70 France Telecom Transpac
786 174 1794 174 The JANET IP Service
25186 172 156 114 France Telecom Transpac's Tra
6746 158 29 128 Dynamic Network Technologies,
719 150 288 102 LANLINK autonomous system
5400 145 207 120 BT Ignite European Backbone
3269 134 1099 64 TELECOM ITALIA
3303 130 609 129 Swisscom Ltd
8866 130 14 11 Bulgarian Telecommunication C
12302 128 18 32 MobiFon S.A.
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
11172 354 96 56 Servicios Alestra S.A de C.V
6140 334 140 65 ImpSat
8151 276 389 128 UniNet S.A. de C.V.
16814 203 13 7 NSS, S.A.
6147 186 86 20 Telefonica Del Peru
6505 134 90 92 Global One Communicaoes Ltda
6503 129 202 87 AVANTEL, S.A.
7303 119 54 17 Telecom Argentina Stet-France
11992 91 9 29 Integrated Systems
11556 87 57 24 Cable-Wireless Panama
6535 81 5 16 Chilesat Servicios Empresari
14420 80 5 30 ANDINATEL S.A.
15311 75 19 37 Telefonica Empresas
11311 72 7 18 Sinectis S.A.
14535 72 6 5 Techtel S.A.
5639 71 8 8 Telecommunications Services o
4270 69 18 9 Red de Interconexion Universi
14117 69 5 4 Telefonica del Sur S.A.
10292 67 6 26 TELECOMMUNICATIONS OF JAMAICA
11340 67 5 36 Red Universitaria Nacional
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 252 632 219 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 92 276 81 The Internetworking Company o
11845 39 9 11 Data Pro Business Online
20928 39 16 1 Noor Advanced Technologies AS
24835 31 18 6 RAYA Telecom - Egypt
16637 30 9 23 Johnnic e-Ventures
6713 26 38 9 Itissalat Al-MAGHRIB
9129 26 3 4 UUNET Kenya
5713 25 125 23 Telkom SA Ltd
8524 25 2 4 AUCEGYPT Autonomous System
14988 25 16 1 Botswana Telecommunications C
12455 23 4 2 Jambonet Autonomous system
10798 18 1 12 Standard Bank of South Africa
15706 17 4 4 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
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6347 954 828 SAVVIS Communications Corpora
18566 726 718 Covad Communications
4134 810 661 Data Communications Bureau
4323 740 530 Time Warner Communications, I
6197 717 436 BellSouth Network Solutions,
9583 492 385 Satyam Infoway Ltd.,
7843 514 384 Adelphia Corp.
701 1301 369 UUNET Technologies, Inc.
22909 396 364 Comcast Cable Corporation
5668 381 363 Century Telephone
27364 364 345 Armstrong Cable Services
4755 400 342 Videsh Sanchar Nigam Ltd. Aut
6467 368 335 E.Spire Communications, Inc.
22773 383 327 Cox Communications, Inc. Atla
1239 941 315 Sprint
17676 341 308 XTAGE CORPORATION
6198 512 298 BellSouth Network Solutions,
11172 354 298 Servicios Alestra S.A de C.V
9929 328 297 China Netcom Corp.
4355 391 290 EarthLink, Inc.
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
18416 UNALLOCATED 61.56.97.0/24 9919 New Century InfoComm
18416 UNALLOCATED 61.56.98.0/24 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
63330 RESERVED 213.8.224.0/23 5486 Euronet Digital Comm
63330 RESERVED 213.8.226.0/23 5486 Euronet Digital Comm
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
156.154.16.0/22 7786 Lockheed Martin IMS
158.0.0.0/13 721 DLA Systems Automation Center
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
192.172.0.0/19 721 DLA Systems Automation Center
192.172.11.0/24 721 DLA Systems Automation Center
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 /12:61
/13:127 /14:302 /15:528 /16:7902 /17:2112 /18:3688
/19:9553 /20:10045 /21:7376 /22:10331 /23:11891 /24:77945
/25:227 /26:207 /27:113 /28:30 /29:18 /30:68
/31:0 /32:12
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6347 738 954 SAVVIS Communications Corpora
18566 709 726 Covad Communications
6197 545 717 BellSouth Network Solutions,
7018 544 1423 AT&T
3356 501 894 Level 3 Communications, LLC
702 396 647 UUNET - Commercial IP service
6198 381 512 BellSouth Network Solutions,
701 371 1301 UUNET Technologies, Inc.
1239 370 941 Sprint
27364 351 364 Armstrong Cable Services
9583 337 492 Satyam Infoway Ltd.,
5668 334 381 Century Telephone
4766 316 498 Korea Internet Exchange for "
20115 300 566 Charter Communications
6467 267 368 E.Spire Communications, Inc.
9929 259 328 China Netcom Corp.
14824 254 278 NewSouth Communications Corp.
3320 248 299 Deutsche Telekom AG
13609 245 288 Choice One Communications Inc
25844 245 245 Skadden, Arps, Slate, Meagher
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:832 13:1 15:5 16:2 17:3
20:7 24:752 32:65 33:2 38:74 40:53
44:4 55:1 56:3 57:16 60:4 61:436
62:510 63:1877 64:2069 65:2036 66:2724 67:333
68:505 69:664 70:64 80:565 81:345 82:188
83:104 84:6 128:145 129:172 130:80 131:186
132:23 134:178 135:17 136:176 137:54 138:170
139:35 140:166 141:106 142:119 143:60 144:102
145:42 146:287 147:89 148:417 149:110 150:93
151:69 152:160 153:64 154:2 155:126 156:57
157:64 158:139 159:148 160:53 161:66 162:383
163:79 164:186 165:164 166:109 167:217 168:232
169:110 170:284 171:8 192:5558 193:2825 194:2066
195:1381 196:575 198:3644 199:3104 200:3595 201:9
202:4766 203:5660 204:3123 205:2094 206:2261 207:2506
208:2193 209:3053 210:1486 211:574 212:997 213:1190
214:70 215:30 216:3754 217:978 218:171 219:118
220:227 221:31 222:106
End of report
