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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 27 Aug, 2004
Analysis Summary
----------------
BGP routing table entries examined: 144245
Prefixes after maximum aggregation: 85835
Unique aggregates announced to Internet: 69145
Total ASes present in the Internet Routing Table: 17875
Origin-only ASes present in the Internet Routing Table: 15498
Origin ASes announcing only one prefix: 7283
Transit ASes present in the Internet Routing Table: 2377
Transit-only ASes present in the Internet Routing Table: 77
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 22
Prefixes from unregistered ASNs in the Routing Table: 29
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 16
Number of addresses announced to Internet: 1335855144
Equivalent to 79 /8s, 159 /16s and 136 /24s
Percentage of available address space announced: 36.0
Percentage of allocated address space announced: 58.2
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 65340
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 27843
Total APNIC prefixes after maximum aggregation: 13964
Prefixes being announced from the APNIC address blocks: 26070
Unique aggregates announced from the APNIC address blocks: 14119
APNIC Region origin ASes present in the Internet Routing Table: 2120
APNIC Region origin ASes announcing only one prefix: 626
APNIC Region transit ASes present in the Internet Routing Table: 329
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 157889152
Equivalent to 9 /8s, 105 /16s and 50 /24s
Percentage of available APNIC address space announced: 72.0
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: 82148
Total ARIN prefixes after maximum aggregation: 50099
Prefixes being announced from the ARIN address blocks: 63556
Unique aggregates announced from the ARIN address blocks: 22529
ARIN Region origin ASes present in the Internet Routing Table: 9437
ARIN Region origin ASes announcing only one prefix: 3405
ARIN Region transit ASes present in the Internet Routing Table: 927
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 230876960
Equivalent to 13 /8s, 194 /16s and 231 /24s
Percentage of available ARIN address space announced: 68.8
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, 31744-33791
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 26696
Total RIPE prefixes after maximum aggregation: 18837
Prefixes being announced from the RIPE address blocks: 23476
Unique aggregates announced from the RIPE address blocks: 15183
RIPE Region origin ASes present in the Internet Routing Table: 5768
RIPE Region origin ASes announcing only one prefix: 3114
RIPE Region transit ASes present in the Internet Routing Table: 998
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 174234432
Equivalent to 10 /8s, 98 /16s and 155 /24s
Percentage of available RIPE address space announced: 61.1
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, 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: 6314
Total LACNIC prefixes after maximum aggregation: 2253
Prefixes being announced from the LACNIC address blocks: 6103
Unique aggregates announced from the LACNIC address blocks: 3529
LACNIC Region origin ASes present in the Internet Routing Table: 389
LACNIC Region origin ASes announcing only one prefix: 117
LACNIC Region transit ASes present in the Internet Routing Table: 77
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 15773184
Equivalent to 0 /8s, 240 /16s and 174 /24s
Percentage of available LACNIC address space announced: 47.0
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1215
Total AfriNIC prefixes after maximum aggregation: 682
Prefixes being announced from the AfriNIC address blocks: 822
Unique aggregates announced from the AfriNIC address blocks: 661
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: 13
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 1994496
Equivalent to 0 /8s, 30 /16s and 111 /24s
Percentage of available AfriNIC address space announced: 11.9
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 830 4161 155 Data Communications Bureau
1221 810 1184 584 Telstra Pty Ltd
4766 559 2897 265 Korea Internet Exchange for "
9583 528 41 106 Satyam Infoway Ltd.,
4755 369 133 50 Videsh Sanchar Nigam Ltd. Aut
9929 362 162 34 China Netcom Corp.
9443 355 70 81 Primus Telecommunications
2907 353 1840 327 SINET Japan
17676 347 5164 39 XTAGE CORPORATION
17557 321 23 158 Pakistan Telecom
703 315 342 243 UUNET
2764 286 274 233 connect.com.au pty ltd
7474 263 268 200 Optus Communications Pty Ltd
9942 236 73 129 COMindico Australia
4802 234 28 143 Wantree Development
9800 225 369 63 CHINA UNICOM
9498 223 49 49 BHARTI BT INTERNET LTD.
4837 204 2262 107 chinanet IDC center beijing n
10036 202 18 183 C&M Communication Co. Ltd.
17974 198 61 9 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1404 6772 968 AT&T WorldNet Services
701 1276 8423 919 UUNET Technologies, Inc.
1239 931 2857 621 Sprint
4323 775 630 218 Time Warner Telecom
18566 742 208 6 Covad Communications
6197 728 506 301 BellSouth Network Solutions,
6347 660 330 121 SAVVIS Communications Corpora
209 619 3430 499 Qwest
721 604 20862 276 DLA Systems Automation Center
20115 582 388 299 Charter Communications
3356 571 10938 440 Level 3 Communications, LLC
852 509 1141 397 Telus Advanced Communications
7843 489 673 104 Adelphia Corp.
6198 459 401 208 BellSouth Network Solutions,
3561 455 2389 346 Cable & Wireless USA
7132 430 8030 372 SBC Internet Services
705 429 163 271 UUNET Technologies, Inc.
2386 409 519 231 AT&T Data Communications Serv
4355 388 323 99 EarthLink, Inc.
5668 388 87 18 Century Telephone
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 659 2022 546 UUNET - Commercial IP service
3320 301 2469 238 Deutsche Telekom AG
3301 281 1098 271 TeliaNet Sweden
8220 275 445 262 COLT Internet - International
680 244 2025 239 DFN-IP service G-WiN
13083 217 51 8 Mannesmann Datenverarbeitung
3246 215 473 212 Song Networks
1257 214 747 183 SWIPnet Swedish IP Network
8708 202 113 180 Romania Data Systems S.A.
5515 199 842 145 Sonera Solution Autonomous Sy
3215 183 892 77 France Telecom Transpac
786 177 1794 177 The JANET IP Service
5400 154 210 125 BT Ignite European Backbone
6746 154 29 131 Dynamic Network Technologies,
25186 153 154 109 France Telecom Transpac's Tra
719 151 288 102 LANLINK autonomous system
3269 145 1195 66 TELECOM ITALIA
8866 134 15 15 Bulgarian Telecommunication C
3303 130 609 129 Swisscom Ltd
12302 127 18 33 MobiFon S.A.
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
11172 356 100 54 Servicios Alestra S.A de C.V
6140 334 137 64 ImpSat
8151 285 391 131 UniNet S.A. de C.V.
16814 212 13 7 NSS, S.A.
6147 187 86 19 Telefonica Del Peru
11664 156 10 23 Keytech SA
6505 137 90 94 Global One Communicaoes Ltda
6503 134 203 92 AVANTEL, S.A.
7303 121 55 19 Telecom Argentina Stet-France
11992 89 9 30 Integrated Systems
14420 84 6 33 ANDINATEL S.A.
6535 81 5 16 Chilesat Servicios Empresari
10481 81 32 7 Prima S.A.
11556 80 40 2 Cable-Wireless Panama
11311 79 7 19 Sinectis S.A.
15311 76 21 36 Telefonica Empresas
5639 75 8 8 Telecommunications Services o
4270 70 18 9 Red de Interconexion Universi
14117 69 5 4 Telefonica del Sur S.A.
11340 68 21 37 Red Universitaria Nacional
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 253 632 220 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
14988 44 16 1 Botswana Telecommunications C
20928 44 16 1 Noor Advanced Technologies AS
9129 33 3 4 UUNET Kenya
24835 33 18 6 RAYA Telecom - Egypt
6713 27 42 10 Itissalat Al-MAGHRIB
8524 26 2 4 AUCEGYPT Autonomous System
5713 25 125 23 Telkom SA Ltd
16637 24 10 19 Johnnic e-Ventures
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
8346 15 7 14 SONATEL-AS Autonomous System
12455 15 4 2 Jambonet Autonomous system
15706 15 4 2 Sudatel Internet Exchange Aut
21491 14 1 3 UTL On-line is RF broadband I
15808 13 1 2 Communication Solutions Ltd i
17148 13 1 7 First National Bank
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 742 736 Covad Communications
4134 830 675 Data Communications Bureau
4323 775 557 Time Warner Telecom
6347 660 539 SAVVIS Communications Corpora
6197 728 427 BellSouth Network Solutions,
9583 528 422 Satyam Infoway Ltd.,
7843 489 385 Adelphia Corp.
5668 388 370 Century Telephone
22773 380 362 Cox Communications, Inc. Atla
701 1276 357 UUNET Technologies, Inc.
6467 387 356 E.Spire Communications, Inc.
27364 351 332 Armstrong Cable Services
721 604 328 DLA Systems Automation Center
9929 362 328 China Netcom Corp.
22909 361 325 Comcast Cable Corporation
4755 369 319 Videsh Sanchar Nigam Ltd. Aut
1239 931 310 Sprint
17676 347 308 XTAGE CORPORATION
11172 356 302 Servicios Alestra S.A de C.V
4766 559 294 Korea Internet Exchange for "
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65217 PRIVATE 192.102.236.0/24 217 University of Minnes
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
64572 PRIVATE 219.146.96.0/21 17633 ASN for Shandong Pro
64572 PRIVATE 219.146.104.0/21 17633 ASN for Shandong Pro
64573 PRIVATE 219.146.112.0/21 17633 ASN for Shandong Pro
64573 PRIVATE 219.146.120.0/21 17633 ASN for Shandong Pro
64576 PRIVATE 219.146.128.0/21 17633 ASN for Shandong Pro
64576 PRIVATE 219.146.136.0/21 17633 ASN for Shandong Pro
64582 PRIVATE 219.146.144.0/22 17633 ASN for Shandong Pro
64582 PRIVATE 219.146.148.0/22 17633 ASN for Shandong Pro
64584 PRIVATE 219.146.176.0/22 17633 ASN for Shandong Pro
64584 PRIVATE 219.146.180.0/22 17633 ASN for Shandong Pro
64575 PRIVATE 219.146.192.0/22 17633 ASN for Shandong Pro
64575 PRIVATE 219.146.196.0/22 17633 ASN for Shandong Pro
64585 PRIVATE 219.146.224.0/21 17633 ASN for Shandong Pro
64582 PRIVATE 219.147.0.0/24 17633 ASN for Shandong Pro
64572 PRIVATE 222.173.128.0/20 17633 ASN for Shandong Pro
64572 PRIVATE 222.173.144.0/20 17633 ASN for Shandong Pro
64573 PRIVATE 222.173.160.0/20 17633 ASN for Shandong Pro
64573 PRIVATE 222.173.176.0/20 17633 ASN for Shandong Pro
64576 PRIVATE 222.173.192.0/20 17633 ASN for Shandong Pro
64576 PRIVATE 222.173.208.0/20 17633 ASN for Shandong Pro
64582 PRIVATE 222.173.224.0/20 17633 ASN for Shandong Pro
64582 PRIVATE 222.173.240.0/20 17633 ASN for Shandong Pro
64584 PRIVATE 222.174.96.0/20 17633 ASN for Shandong Pro
64584 PRIVATE 222.174.112.0/20 17633 ASN for Shandong Pro
64575 PRIVATE 222.174.160.0/20 17633 ASN for Shandong Pro
64575 PRIVATE 222.174.176.0/20 17633 ASN for Shandong Pro
64585 PRIVATE 222.175.32.0/19 17633 ASN for Shandong Pro
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
158.0.0.0/13 721 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 WorldNet Services
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 /8:20 /9:3 /10:6 /11:14 /12:63
/13:133 /14:304 /15:540 /16:7971 /17:2165 /18:3785
/19:9723 /20:10243 /21:7589 /22:10472 /23:12085 /24:78456
/25:244 /26:189 /27:98 /28:37 /29:10 /30:71
/31:0 /32:24
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 725 742 Covad Communications
6197 570 728 BellSouth Network Solutions,
7018 547 1404 AT&T WorldNet Services
6347 480 660 SAVVIS Communications Corpora
702 412 659 UUNET - Commercial IP service
9583 370 528 Satyam Infoway Ltd.,
4766 367 559 Korea Internet Exchange for "
1239 364 931 Sprint
701 360 1276 UUNET Technologies, Inc.
5668 339 388 Century Telephone
6198 338 459 BellSouth Network Solutions,
27364 337 351 Armstrong Cable Services
20115 307 582 Charter Communications
9929 289 362 China Netcom Corp.
6467 286 387 E.Spire Communications, Inc.
6517 265 292 Yipes Communications, Inc.
13609 259 302 Choice One Communications Inc
3320 248 301 Deutsche Telekom AG
25844 245 245 Skadden, Arps, Slate, Meagher
14824 242 265 NewSouth Communications Corp.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:2 12:855 13:1 15:5 16:2
17:3 20:9 24:700 32:66 33:2 38:81
40:54 44:4 55:1 56:3 57:16 60:6
61:467 62:519 63:1830 64:2232 65:2051 66:2456
67:362 68:542 69:688 70:34 80:524 81:359
82:205 83:127 84:34 128:94 129:171 130:87
131:171 132:23 134:184 135:17 136:184 137:49
138:174 139:40 140:161 141:107 142:120 143:59
144:101 145:42 146:293 147:93 148:418 149:110
150:88 151:70 152:159 153:68 154:2 155:130
156:64 157:71 158:145 159:159 160:54 161:71
162:390 163:79 164:185 165:159 166:115 167:222
168:278 169:114 170:277 171:9 192:5570 193:2854
194:2086 195:1458 196:580 198:3667 199:3264 200:3689
201:15 202:4838 203:5676 204:3160 205:2062 206:2294
207:2478 208:2149 209:2997 210:1455 211:590 212:986
213:1205 214:95 215:30 216:3789 217:989 218:184
219:93 220:231 221:33 222:88
End of report
