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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 23 Jun, 2004
Analysis Summary
----------------
BGP routing table entries examined: 141702
Prefixes after maximum aggregation: 85165
Unique aggregates announced to Internet: 68035
Total ASes present in the Internet Routing Table: 17472
Origin-only ASes present in the Internet Routing Table: 15156
Origin ASes announcing only one prefix: 7062
Transit ASes present in the Internet Routing Table: 2316
Transit-only ASes present in the Internet Routing Table: 71
Average AS path length visible in the Internet Routing Table: 4.9
Max AS path length visible: 26
Illegal AS announcements present in the Routing Table: 8
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 19
Number of addresses announced to Internet: 1313174300
Equivalent to 78 /8s, 69 /16s and 115 /24s
Percentage of available address space announced: 35.4
Percentage of allocated address space announced: 58.1
Percentage of available address space allocated: 60.9
Total number of prefixes smaller than registry allocations: 65099
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 26904
Total APNIC prefixes after maximum aggregation: 13942
Prefixes being announced from the APNIC address blocks: 25132
Unique aggregates announced from the APNIC address blocks: 13885
APNIC Region origin ASes present in the Internet Routing Table: 2069
APNIC Region origin ASes announcing only one prefix: 617
APNIC Region transit ASes present in the Internet Routing Table: 335
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 150272256
Equivalent to 8 /8s, 244 /16s and 249 /24s
Percentage of available APNIC address space announced: 68.6
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: 81557
Total ARIN prefixes after maximum aggregation: 49880
Prefixes being announced from the ARIN address blocks: 62724
Unique aggregates announced from the ARIN address blocks: 21883
ARIN Region origin ASes present in the Internet Routing Table: 9272
ARIN Region origin ASes announcing only one prefix: 3311
ARIN Region transit ASes present in the Internet Routing Table: 903
Average ARIN Region AS path length visible: 4.7
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 225605408
Equivalent to 13 /8s, 114 /16s and 119 /24s
Percentage of available ARIN address space announced: 74.7
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: 25915
Total RIPE prefixes after maximum aggregation: 18411
Prefixes being announced from the RIPE address blocks: 22686
Unique aggregates announced from the RIPE address blocks: 15102
RIPE Region origin ASes present in the Internet Routing Table: 5590
RIPE Region origin ASes announcing only one prefix: 3001
RIPE Region transit ASes present in the Internet Routing Table: 966
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 164886336
Equivalent to 9 /8s, 211 /16s and 247 /24s
Percentage of available RIPE address space announced: 57.8
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: 6170
Total LACNIC prefixes after maximum aggregation: 2256
Prefixes being announced from the LACNIC address blocks: 5796
Unique aggregates announced from the LACNIC address blocks: 3545
LACNIC Region origin ASes present in the Internet Routing Table: 379
LACNIC Region origin ASes announcing only one prefix: 110
LACNIC Region transit ASes present in the Internet Routing Table: 74
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 15090688
Equivalent to 0 /8s, 230 /16s and 68 /24s
Percentage of available LACNIC address space announced: 45.0
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1153
Total AfriNIC prefixes after maximum aggregation: 676
Prefixes being announced from the AfriNIC address blocks: 780
Unique aggregates announced from the AfriNIC address blocks: 582
AfriNIC Region origin ASes present in the Internet Routing Table: 91
AfriNIC Region origin ASes announcing only one prefix: 23
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1886208
Equivalent to 0 /8s, 28 /16s and 200 /24s
Percentage of available AfriNIC address space announced: 11.2
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 843 1075 611 Telstra Pty Ltd
4134 792 3664 146 Data Communications Bureau
4766 494 2896 264 Korea Internet Exchange for "
9583 459 38 96 Satyam Infoway Ltd.,
4755 369 134 55 Videsh Sanchar Nigam Ltd. Aut
9443 353 69 78 Primus Telecommunications
2907 350 1840 327 SINET Japan
17676 341 5084 33 XTAGE CORPORATION
17557 333 23 165 Pakistan Telecom
703 328 375 255 UUNET
9929 321 156 33 China Netcom Corp.
2764 296 275 243 connect.com.au pty ltd
7474 262 267 205 Optus Communications Pty Ltd
9942 231 71 128 COMindico Australia
9800 224 369 62 CHINA UNICOM
9498 216 48 46 BHARTI BT INTERNET LTD.
10036 186 17 170 C&M Communication Co. Ltd.
4837 185 2017 104 chinanet IDC center beijing n
17974 184 51 99 PT TELEKOMUNIKASI INDONESIA
9304 179 161 25 Hutchison Telecom (HK)
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1445 6890 1004 AT&T
701 1299 8485 927 UUNET Technologies, Inc.
1239 944 2998 637 Sprint
6347 931 400 99 SAVVIS Communications Corpora
3356 898 10935 681 Level 3 Communications, LLC
557 769 63 15 University of Maine System Co
4323 742 549 205 Time Warner Communications, I
18566 722 192 8 Covad Communications
6197 707 525 276 BellSouth Network Solutions,
209 614 3469 507 Qwest
6198 573 439 219 BellSouth Network Solutions,
20115 560 373 287 Charter Communications
852 516 1142 403 Telus Advanced Communications
7843 510 658 129 Adelphia Corp.
7132 454 7872 340 Southwestern Bell Internet Se
2386 426 565 228 AT&T Data Communications Serv
721 416 13174 302 DLA Systems Automation Center
4355 393 323 103 EarthLink, Inc.
22909 393 825 26 Comcast Cable Corporation
705 390 128 266 UUNET Technologies, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 647 2039 540 UUNET - Commercial IP service
3320 297 2468 235 Deutsche Telekom AG
3301 294 1097 267 TeliaNet Sweden
8220 275 429 263 COLT Internet - International
1257 247 497 195 SWIPnet Swedish IP Network
680 244 2025 239 DFN-IP service G-WiN
13083 216 51 8 Mannesmann Datenverarbeitung
3246 209 475 206 Song Networks
5515 199 843 144 Sonera Solution Autonomous Sy
8708 184 112 172 Romania Data Systems S.A.
3215 182 895 69 France Telecom Transpac
719 180 288 102 LANLINK autonomous system
786 174 1794 174 The JANET IP Service
25186 174 156 115 France Telecom Transpac's Tra
6746 157 29 128 Dynamic Network Technologies,
5400 145 205 120 BT Ignite European Backbone
3269 134 1099 64 TELECOM ITALIA
3303 134 611 133 Swisscom Ltd
12302 127 18 31 MobiFon S.A.
8866 122 14 8 Bulgarian Telecommunication C
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
11172 355 96 58 Servicios Alestra S.A de C.V
6140 346 140 67 ImpSat
8151 269 373 128 UniNet S.A. de C.V.
16814 203 13 7 NSS, S.A.
6147 184 82 21 Telefonica Del Peru
7303 144 53 32 Telecom Argentina Stet-France
6505 134 90 92 Global One Communicaoes Ltda
6503 131 202 89 AVANTEL, S.A.
11992 92 9 29 Integrated Systems
11556 87 57 24 Cable-Wireless Panama
14420 85 5 32 ANDINATEL S.A.
6535 80 5 17 Chilesat Servicios Empresari
14535 76 6 5 Techtel S.A.
15311 75 19 37 Telefonica Empresas
11311 73 7 20 Sinectis S.A.
5639 72 8 8 Telecommunications Services o
4270 71 18 9 Red de Interconexion Universi
14117 69 5 4 Telefonica del Sur S.A.
14259 67 4 5 GTD Internet S.A.
7080 64 4 1 Electronica y Comunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 253 632 220 The Internet Solution
5536 111 16 4 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 90 276 80 The Internetworking Company o
11845 38 9 11 Data Pro Business Online
24835 31 18 6 RAYA Telecom - Egypt
9129 27 3 4 UUNET Kenya
8524 25 2 4 AUCEGYPT Autonomous System
16637 25 9 18 Johnnic e-Ventures
5713 24 125 23 Telkom SA Ltd
6713 24 38 9 Itissalat Al-MAGHRIB
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
6347 931 832 SAVVIS Communications Corpora
557 769 754 University of Maine System Co
18566 722 714 Covad Communications
4134 792 646 Data Communications Bureau
4323 742 537 Time Warner Communications, I
6197 707 431 BellSouth Network Solutions,
7843 510 381 Adelphia Corp.
701 1299 372 UUNET Technologies, Inc.
22909 393 367 Comcast Cable Corporation
5668 383 366 Century Telephone
9583 459 363 Satyam Infoway Ltd.,
27364 376 357 Armstrong Cable Services
6198 573 354 BellSouth Network Solutions,
22773 387 332 Cox Communications, Inc. Atla
4755 369 314 Videsh Sanchar Nigam Ltd. Aut
17676 341 308 XTAGE CORPORATION
1239 944 307 Sprint
11172 355 297 Servicios Alestra S.A de C.V
4355 393 290 EarthLink, Inc.
9929 321 288 China Netcom Corp.
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
65501 PRIVATE 66.60.187.0/24 14051 Roseville Telephone
65501 PRIVATE 66.60.188.0/22 14051 Roseville Telephone
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
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
137.0.0.0/13 721 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
192.172.0.0/19 568 DISO-UNRRA
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 /8:19 /9:3 /10:6 /11:15 /12:59
/13:124 /14:301 /15:518 /16:7877 /17:2067 /18:3631
/19:9473 /20:9912 /21:7304 /22:10334 /23:11852 /24:76854
/25:376 /26:392 /27:317 /28:172 /29:15 /30:67
/31:0 /32:14
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
557 736 769 University of Maine System Co
6347 708 931 SAVVIS Communications Corpora
18566 705 722 Covad Communications
7018 559 1445 AT&T
6197 536 707 BellSouth Network Solutions,
3356 503 898 Level 3 Communications, LLC
6198 403 573 BellSouth Network Solutions,
702 395 647 UUNET - Commercial IP service
1239 376 944 Sprint
701 367 1299 UUNET Technologies, Inc.
27364 364 376 Armstrong Cable Services
5668 335 383 Century Telephone
4766 313 494 Korea Internet Exchange for "
9583 306 459 Satyam Infoway Ltd.,
20115 296 560 Charter Communications
14824 257 281 NewSouth Communications Corp.
9929 255 321 China Netcom Corp.
690 246 282 Merit Network
3320 246 297 Deutsche Telekom AG
25844 244 244 Skadden, Arps, Slate, Meagher
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:826 13:1 15:5 16:2 17:3
20:8 24:750 32:65 33:1 38:70 40:53
44:4 55:1 56:3 57:15 61:446 62:488
63:1818 64:1987 65:2031 66:2593 67:333 68:500
69:586 70:64 80:504 81:327 82:176 83:80
84:6 128:148 129:175 130:78 131:187 132:21
133:1 134:181 135:17 136:183 137:54 138:167
139:37 140:165 141:122 142:119 143:55 144:101
145:41 146:304 147:82 148:416 149:119 150:95
151:71 152:165 153:64 154:1 155:117 156:60
157:60 158:145 159:147 160:52 161:62 162:383
163:77 164:180 165:159 166:99 167:216 168:228
169:162 170:283 171:8 192:5562 193:2771 194:2051
195:1363 196:553 198:3694 199:3100 200:3550 201:8
202:4650 203:5612 204:3118 205:2072 206:2304 207:2508
208:2216 209:2921 210:1416 211:554 212:988 213:1170
214:66 215:30 216:3711 217:940 218:164 219:113
220:224 221:30 222:39
End of report
