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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 10 Jul, 2006
Analysis Summary
----------------
BGP routing table entries examined: 191832
Prefixes after maximum aggregation: 105527
Unique aggregates announced to Internet: 93798
Total ASes present in the Internet Routing Table: 22607
Origin-only ASes present in the Internet Routing Table: 19670
Origin ASes announcing only one prefix: 9449
Transit ASes present in the Internet Routing Table: 2937
Transit-only ASes present in the Internet Routing Table: 65
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 24
Max AS path prepend of ASN (34527) 16
Prefixes from unregistered ASNs in the Routing Table: 2
Unregistered ASNs in the Routing Table: 2
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 9
Number of addresses announced to Internet: 1540883368
Equivalent to 91 /8s, 216 /16s and 3 /24s
Percentage of available address space announced: 41.6
Percentage of allocated address space announced: 60.1
Percentage of available address space allocated: 69.1
Total number of prefixes smaller than registry allocations: 94877
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 41352
Total APNIC prefixes after maximum aggregation: 16993
Prefixes being announced from the APNIC address blocks: 39047
Unique aggregates announced from the APNIC address blocks: 18386
APNIC Region origin ASes present in the Internet Routing Table: 2620
APNIC Region origin ASes announcing only one prefix: 739
APNIC Region transit ASes present in the Internet Routing Table: 397
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 235951200
Equivalent to 14 /8s, 16 /16s and 84 /24s
Percentage of available APNIC address space announced: 73.8
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911
APNIC Address Blocks 58/7, 60/7, 121/8, 122/7, 124/7, 126/8, 202/7
210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 97840
Total ARIN prefixes after maximum aggregation: 58137
Prefixes being announced from the ARIN address blocks: 71666
Unique aggregates announced from the ARIN address blocks: 27056
ARIN Region origin ASes present in the Internet Routing Table: 10823
ARIN Region origin ASes announcing only one prefix: 4089
ARIN Region transit ASes present in the Internet Routing Table: 994
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 19
Number of ARIN addresses announced to Internet: 295338240
Equivalent to 17 /8s, 154 /16s and 129 /24s
Percentage of available ARIN address space announced: 76.5
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 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, 29696-30719, 31744-33791
35840-36863, 39936-40959
ARIN Address Blocks 24/8, 63/8, 64/5, 72/6, 76/8, 199/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 38442
Total RIPE prefixes after maximum aggregation: 25755
Prefixes being announced from the RIPE address blocks: 35512
Unique aggregates announced from the RIPE address blocks: 23929
RIPE Region origin ASes present in the Internet Routing Table: 8237
RIPE Region origin ASes announcing only one prefix: 4341
RIPE Region transit ASes present in the Internet Routing Table: 1356
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 255798596
Equivalent to 15 /8s, 63 /16s and 45 /24s
Percentage of available RIPE address space announced: 80.2
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
40960-41983
RIPE Address Blocks 62/8, 80/5, 88/6, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 11913
Total LACNIC prefixes after maximum aggregation: 3745
Prefixes being announced from the LACNIC address blocks: 9982
Unique aggregates announced from the LACNIC address blocks: 5631
LACNIC Region origin ASes present in the Internet Routing Table: 704
LACNIC Region origin ASes announcing only one prefix: 237
LACNIC Region transit ASes present in the Internet Routing Table: 132
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 28300288
Equivalent to 1 /8s, 175 /16s and 212 /24s
Percentage of available LACNIC address space announced: 42.2
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 189/8, 190/8, 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 2283
Total AfriNIC prefixes after maximum aggregation: 897
Prefixes being announced from the AfriNIC address blocks: 1534
Unique aggregates announced from the AfriNIC address blocks: 954
AfriNIC Region origin ASes present in the Internet Routing Table: 158
AfriNIC Region origin ASes announcing only one prefix: 43
AfriNIC Region transit ASes present in the Internet Routing Table: 27
Average AfriNIC Region AS path length visible: 3.5
Max AfriNIC Region AS path length visible: 11
Number of AfriNIC addresses announced to Internet: 4191232
Equivalent to 0 /8s, 63 /16s and 244 /24s
Percentage of available AfriNIC address space announced: 12.5
AfriNIC AS Blocks 36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 1246 7479 230 CHINANET-BACKBONE
4755 946 257 73 Videsh Sanchar Nigam Ltd. Aut
9583 909 109 15 Sify Limited
9498 715 211 69 BHARTI BT INTERNET LTD.
4766 689 4435 303 Korea Telecom (KIX)
1221 610 1668 468 Telstra Pty Ltd
7545 547 124 73 TPG Internet Pty Ltd
17488 519 32 17 Hathway IP Over Cable Interne
17676 490 7093 110 Softbank BB Corp.
9443 452 111 83 Primus Telecommunications
18101 424 85 24 Reliance Infocom Ltd Internet
17974 406 129 14 PT TELEKOMUNIKASI INDONESIA
17849 394 28 122 Telecommunications Technology
17557 380 30 171 Pakistan Telecom
4802 379 81 168 Wantree Development
2907 335 1733 311 SINET Japan
9929 330 255 61 China Netcom Corp.
7474 298 211 228 SingTel Optus Pty Ltd
4837 280 3085 123 chinanet IDC center beijing n
9800 276 410 58 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1483 6262 944 AT&T WorldNet Services
4323 1334 747 266 Time Warner Telecom
721 1029 21998 315 DLA Systems Automation Center
6197 1013 636 476 BellSouth Network Solutions,
174 963 5771 895 Cogent Communications
701 947 6754 780 UUNET Technologies, Inc.
18566 945 272 8 Covad Communications
2386 918 558 710 AT&T Data Communications Serv
1239 849 2794 603 Sprint
19262 723 2188 191 Verizon Global Networks
20115 715 620 383 Charter Communications
209 695 3679 548 Qwest
22773 674 1741 40 Cox Communications, Inc.
11492 654 89 10 Cable One
7011 651 218 413 Citizens Utilities
6198 599 568 236 BellSouth Network Solutions,
852 582 1084 382 Telus Advanced Communications
855 573 247 74 Canadian Research Network
19916 563 49 54 OLM LLC
5668 531 147 23 CenturyTel Internet Holdings,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 565 1932 444 UUNET - Commercial IP service
3301 316 1187 301 TeliaNet Sweden
3352 304 1639 33 Ibernet, Internet Access Netw
3320 279 3988 235 Deutsche Telekom AG
8220 279 471 265 COLT Telecommunications
680 246 2041 243 DFN-IP service G-WiN
6746 235 89 210 Dynamic Network Technologies,
3246 230 463 220 Song Networks
24863 216 42 11 LINKdotNET AS number
8708 215 276 204 Romania Data Systems S.A.
8551 209 198 29 Bezeq International
30890 205 18 79 SC Kappa Invexim SRL
3215 204 1760 97 France Telecom Transpac
3269 201 2182 72 TELECOM ITALIA
1257 194 741 166 SWIPnet Swedish IP Network
8866 187 37 15 Bulgarian Telecommunication C
6830 175 813 37 UPC Distribution Services
786 169 1778 169 The JANET IP Service
3300 169 171 98 AUCS Communications Services
12479 160 322 5 Uni2 Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 702 1143 222 UniNet S.A. de C.V.
22047 432 206 11 VTR PUNTO NET S.A.
11172 355 113 85 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
6147 267 134 22 Telefonica Del Peru
6471 243 74 28 ENTEL CHILE S.A.
14117 207 13 7 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
6503 180 151 82 AVANTEL, S.A.
7303 178 83 28 Telecom Argentina Stet-France
21826 133 17 23 INTERCABLE
11556 132 80 4 Cable-Wireless Panama
19429 131 84 45 E.T.B.
19169 129 8 26 Telconet
14522 127 18 9 SatNet S.A.
14259 119 10 15 GTD Internet S.A.
23216 113 21 9 RAMtelecom Telecomunicaciones
5639 109 12 9 Telecommunications Services o
6505 109 88 79 Global One Communicaoes Ltda
7738 106 410 20 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 284 803 231 The Internet Solution
8452 167 60 7 TEDATA
6713 144 135 11 Itissalat Al-MAGHRIB
2018 131 314 105 Tertiary Education Network
15475 125 84 4 Nile Online
5536 121 8 18 Internet Egypt Network
24835 116 48 6 RAYA Telecom - Egypt
33783 105 6 2 EEPAD TISP TELECOM & INTERNET
2905 69 139 60 The Internetworking Company o
20928 60 16 3 Noor Advanced Technologies AS
15706 44 8 3 Sudatel Internet Exchange Aut
5713 39 294 35 Telkom SA Ltd
33774 31 7 21 AS Number for Telecom Algeria
16637 25 18 23 Johnnic e-Ventures
23889 24 8 11 MAURITIUS TELECOM
10798 23 1 14 Standard Bank of South Africa
12455 23 6 3 Jambonet Autonomous system
21280 23 4 4 Swift Global Kenya Ltd.Is an
8524 22 1 5 AUCEGYPT Autonomous System
33766 21 2 1 Nyala Communications Pty Ltd
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1334 1068 Time Warner Telecom
4134 1246 1016 CHINANET-BACKBONE
18566 945 937 Covad Communications
9583 909 894 Sify Limited
4755 946 873 Videsh Sanchar Nigam Ltd. Aut
721 1029 714 DLA Systems Automation Center
9498 715 646 BHARTI BT INTERNET LTD.
11492 654 644 Cable One
22773 674 634 Cox Communications, Inc.
6197 1013 537 BellSouth Network Solutions,
19262 723 532 Verizon Global Networks
19916 563 509 OLM LLC
5668 531 508 CenturyTel Internet Holdings,
17488 519 502 Hathway IP Over Cable Interne
855 573 499 Canadian Research Network
8151 702 480 UniNet S.A. de C.V.
7545 547 474 TPG Internet Pty Ltd
3602 526 422 Sprint Canada, Inc.
22047 432 421 VTR PUNTO NET S.A.
15270 440 407 PaeTec.net -a division of Pae
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65128 PRIVATE 193.110.50.0/24 24652 Juniper Networks, Eu
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
198.18.1.0/24 3301 TeliaNet Sweden
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
183.206.196.0/24 2188 FR-RENATER-ASTER
192.44.0.0/24 5501 Fraunhofer Gesellschaft
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.84.205.0/24 719 LANLINK autonomous system
192.172.0.0/19 721 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 /8:17 /9:9 /10:10 /11:28 /12:93
/13:202 /14:365 /15:714 /16:8882 /17:3298 /18:5426
/19:11844 /20:13435 /21:11731 /22:14871 /23:16031 /24:103783
/25:385 /26:294 /27:180 /28:66 /29:73 /30:53
/31:0 /32:42
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 928 945 Covad Communications
6197 794 1013 BellSouth Network Solutions,
7018 791 1483 AT&T WorldNet Services
9583 739 909 Sify Limited
4323 648 1334 Time Warner Telecom
11492 642 654 Cable One
2386 637 918 AT&T Data Communications Serv
7011 559 651 Citizens Utilities
19916 557 563 OLM LLC
4766 500 689 Korea Telecom (KIX)
855 447 573 Canadian Research Network
6198 441 599 BellSouth Network Solutions,
9498 416 715 BHARTI BT INTERNET LTD.
5668 414 531 CenturyTel Internet Holdings,
15270 409 440 PaeTec.net -a division of Pae
1239 390 849 Sprint
17849 388 394 Telecommunications Technology
4755 379 946 Videsh Sanchar Nigam Ltd. Aut
6517 374 408 Yipes Communications, Inc.
18101 354 424 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:42 11:1 12:1608 13:1 15:15
16:3 17:3 18:4 20:41 24:776 25:1
32:58 38:233 40:54 41:3 44:3 47:6
52:4 55:1 56:3 57:24 58:189 59:246
60:176 61:866 62:804 63:1884 64:3187 65:2243
66:3128 67:619 68:674 69:1521 70:390 71:85
72:799 74:53 75:1 80:778 81:655 82:635
83:380 84:379 85:567 86:405 87:392 88:111
89:319 121:1 122:2 123:1 124:271 125:543
128:149 129:184 130:119 131:315 132:34 133:8
134:160 135:48 136:154 137:82 138:206 139:54
140:489 141:134 142:384 143:170 144:228 145:40
146:318 147:137 148:343 149:191 150:114 151:93
152:69 153:106 154:5 155:207 156:186 157:145
158:167 159:171 160:91 161:77 162:245 163:160
164:242 165:218 166:173 167:243 168:497 169:125
170:352 171:14 183:1 190:83 192:5723 193:3354
194:2645 195:1951 196:869 198:3961 199:3238 200:4625
201:985 202:6721 203:7062 204:3900 205:2055 206:2423
207:2917 208:2187 209:3396 210:2029 211:710 212:1241
213:1477 214:367 215:41 216:3993 217:1170 218:295
219:241 220:734 221:356 222:189
End of report
