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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 29 Aug, 2004
Analysis Summary
----------------
BGP routing table entries examined: 144682
Prefixes after maximum aggregation: 86082
Unique aggregates announced to Internet: 69631
Total ASes present in the Internet Routing Table: 17883
Origin-only ASes present in the Internet Routing Table: 15508
Origin ASes announcing only one prefix: 7267
Transit ASes present in the Internet Routing Table: 2375
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: 31
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 16
Number of addresses announced to Internet: 1331570476
Equivalent to 79 /8s, 94 /16s and 39 /24s
Percentage of available address space announced: 35.9
Percentage of allocated address space announced: 58.1
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 65526
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 27862
Total APNIC prefixes after maximum aggregation: 13976
Prefixes being announced from the APNIC address blocks: 26086
Unique aggregates announced from the APNIC address blocks: 14137
APNIC Region origin ASes present in the Internet Routing Table: 2120
APNIC Region origin ASes announcing only one prefix: 628
APNIC Region transit ASes present in the Internet Routing Table: 329
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 158107008
Equivalent to 9 /8s, 108 /16s and 133 /24s
Percentage of available APNIC address space announced: 72.1
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: 82517
Total ARIN prefixes after maximum aggregation: 50306
Prefixes being announced from the ARIN address blocks: 63635
Unique aggregates announced from the ARIN address blocks: 22506
ARIN Region origin ASes present in the Internet Routing Table: 9442
ARIN Region origin ASes announcing only one prefix: 3395
ARIN Region transit ASes present in the Internet Routing Table: 924
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 230974240
Equivalent to 13 /8s, 196 /16s and 99 /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: 26741
Total RIPE prefixes after maximum aggregation: 18874
Prefixes being announced from the RIPE address blocks: 23523
Unique aggregates announced from the RIPE address blocks: 15678
RIPE Region origin ASes present in the Internet Routing Table: 5774
RIPE Region origin ASes announcing only one prefix: 3106
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: 169769280
Equivalent to 10 /8s, 30 /16s and 121 /24s
Percentage of available RIPE address space announced: 59.5
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, 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: 6315
Total LACNIC prefixes after maximum aggregation: 2245
Prefixes being announced from the LACNIC address blocks: 6135
Unique aggregates announced from the LACNIC address blocks: 3525
LACNIC Region origin ASes present in the Internet Routing Table: 388
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: 15782400
Equivalent to 0 /8s, 240 /16s and 210 /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: 1216
Total AfriNIC prefixes after maximum aggregation: 681
Prefixes being announced from the AfriNIC address blocks: 823
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: 4.8
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 833 4193 156 Data Communications Bureau
1221 809 1184 583 Telstra Pty Ltd
4766 563 2897 265 Korea Internet Exchange for "
9583 528 41 106 Satyam Infoway Ltd.,
4755 369 133 50 Videsh Sanchar Nigam Ltd. Aut
9929 363 162 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
703 314 342 242 UUNET
2764 286 274 233 connect.com.au pty ltd
7474 263 268 200 Optus Communications Pty Ltd
9942 239 73 130 COMindico Australia
4802 233 28 143 Wantree Development
9800 225 369 63 CHINA UNICOM
9498 221 49 49 BHARTI BT INTERNET LTD.
4837 206 2262 107 chinanet IDC center beijing n
10036 202 18 183 C&M Communication Co. Ltd.
17974 199 61 9 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1409 6757 963 AT&T WorldNet Services
701 1275 8423 918 UUNET Technologies, Inc.
1239 932 2857 622 Sprint
4323 778 633 215 Time Warner Telecom
18566 741 208 6 Covad Communications
6197 719 362 340 BellSouth Network Solutions,
721 711 21018 296 DLA Systems Automation Center
209 620 3430 499 Qwest
20115 585 404 301 Charter Communications
3356 567 10922 436 Level 3 Communications, LLC
6347 549 297 120 SAVVIS Communications Corpora
852 511 1141 399 Telus Advanced Communications
7843 490 675 104 Adelphia Corp.
3561 464 2390 349 Cable & Wireless USA
6198 459 401 207 BellSouth Network Solutions,
7132 431 8029 373 SBC Internet Services
705 428 163 270 UUNET Technologies, Inc.
2386 407 519 229 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
702 656 2033 539 UUNET - Commercial IP service
3320 302 2470 239 Deutsche Telekom AG
3301 283 1098 273 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 216 474 213 Song Networks
1257 214 747 183 SWIPnet Swedish IP Network
8708 202 113 181 Romania Data Systems S.A.
5515 199 842 145 Sonera Solution Autonomous Sy
3215 182 876 76 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 357 100 54 Servicios Alestra S.A de C.V
6140 333 137 63 ImpSat
8151 286 407 132 UniNet S.A. de C.V.
16814 212 13 7 NSS, S.A.
6147 186 86 19 Telefonica Del Peru
11664 156 11 20 Keytech SA
6505 137 90 94 Global One Communicaoes Ltda
6503 134 187 90 AVANTEL, S.A.
7303 121 55 19 Telecom Argentina Stet-France
11992 89 9 30 Integrated Systems
14420 86 6 34 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.
5639 78 8 8 Telecommunications Services o
15311 76 21 36 Telefonica Empresas
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 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
14988 45 16 1 Botswana Telecommunications C
20928 44 16 1 Noor Advanced Technologies AS
24835 33 18 6 RAYA Telecom - Egypt
9129 32 3 4 UUNET Kenya
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 741 735 Covad Communications
4134 833 677 Data Communications Bureau
4323 778 563 Time Warner Telecom
6347 549 429 SAVVIS Communications Corpora
9583 528 422 Satyam Infoway Ltd.,
721 711 415 DLA Systems Automation Center
7843 490 386 Adelphia Corp.
6197 719 379 BellSouth Network Solutions,
5668 388 370 Century Telephone
22773 380 362 Cox Communications, Inc. Atla
701 1275 357 UUNET Technologies, Inc.
6467 387 356 E.Spire Communications, Inc.
27364 351 332 Armstrong Cable Services
9929 363 329 China Netcom Corp.
22909 360 323 Comcast Cable Corporation
4755 369 319 Videsh Sanchar Nigam Ltd. Aut
1239 932 310 Sprint
17676 347 308 XTAGE CORPORATION
11172 357 303 Servicios Alestra S.A de C.V
4766 563 298 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
65512 PRIVATE 192.248.0.0/17 9329 Sri Lanka Telecom In
65507 PRIVATE 200.46.157.0/28 20080 Florida Internationa
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 /8:19 /9:3 /10:6 /11:14 /12:63
/13:133 /14:304 /15:540 /16:8023 /17:2178 /18:3787
/19:9726 /20:10235 /21:7603 /22:10492 /23:12094 /24:78772
/25:247 /26:191 /27:99 /28:39 /29:10 /30:75
/31:0 /32:29
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 725 741 Covad Communications
6197 570 719 BellSouth Network Solutions,
7018 557 1409 AT&T WorldNet Services
702 410 656 UUNET - Commercial IP service
6347 398 549 SAVVIS Communications Corpora
9583 370 528 Satyam Infoway Ltd.,
4766 367 563 Korea Internet Exchange for "
1239 365 932 Sprint
701 360 1275 UUNET Technologies, Inc.
5668 339 388 Century Telephone
6198 338 459 BellSouth Network Solutions,
27364 337 351 Armstrong Cable Services
20115 309 585 Charter Communications
9929 290 363 China Netcom Corp.
6467 286 387 E.Spire Communications, Inc.
6517 264 291 Yipes Communications, Inc.
13609 259 302 Choice One Communications Inc
3320 248 302 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 12:862 13:1 15:5 16:2
17:3 20:9 24:698 32:66 33:3 38:81
40:54 44:4 55:1 56:3 57:17 60:6
61:466 62:503 63:1843 64:2236 65:2053 66:2449
67:362 68:545 69:696 70:34 80:529 81:365
82:204 83:130 84:34 128:104 129:171 130:87
131:188 132:26 134:187 135:17 136:186 137:50
138:174 139:37 140:162 141:107 142:120 143:69
144:155 145:41 146:294 147:94 148:419 149:111
150:87 151:70 152:167 153:68 154:2 155:129
156:64 157:71 158:125 159:158 160:56 161:71
162:390 163:79 164:204 165:160 166:115 167:223
168:281 169:114 170:269 171:9 192:5597 193:2865
194:2109 195:1469 196:581 198:3684 199:3260 200:3715
201:16 202:4830 203:5676 204:3207 205:2082 206:2312
207:2509 208:2145 209:3001 210:1457 211:590 212:990
213:1204 214:125 215:31 216:3710 217:991 218:185
219:93 220:231 221:33 222:93
End of report
