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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 24 Apr, 2006
Analysis Summary
----------------
BGP routing table entries examined: 187126
Prefixes after maximum aggregation: 103344
Unique aggregates announced to Internet: 91506
Total ASes present in the Internet Routing Table: 21976
Origin-only ASes present in the Internet Routing Table: 19121
Origin ASes announcing only one prefix: 9087
Transit ASes present in the Internet Routing Table: 2855
Transit-only ASes present in the Internet Routing Table: 61
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 25
Prefixes from unregistered ASNs in the Routing Table: 5
Unregistered ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1509678496
Equivalent to 89 /8s, 251 /16s and 221 /24s
Percentage of available address space announced: 40.7
Percentage of allocated address space announced: 60.1
Percentage of available address space allocated: 67.8
Total number of prefixes smaller than registry allocations: 92326
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 39308
Total APNIC prefixes after maximum aggregation: 16480
Prefixes being announced from the APNIC address blocks: 37021
Unique aggregates announced from the APNIC address blocks: 18198
APNIC Region origin ASes present in the Internet Routing Table: 2547
APNIC Region origin ASes announcing only one prefix: 718
APNIC Region transit ASes present in the Internet Routing Table: 395
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 222429664
Equivalent to 13 /8s, 66 /16s and 1 /24s
Percentage of available APNIC address space announced: 69.5
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: 97320
Total ARIN prefixes after maximum aggregation: 57478
Prefixes being announced from the ARIN address blocks: 76447
Unique aggregates announced from the ARIN address blocks: 29403
ARIN Region origin ASes present in the Internet Routing Table: 10639
ARIN Region origin ASes announcing only one prefix: 3983
ARIN Region transit ASes present in the Internet Routing Table: 986
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 295802880
Equivalent to 17 /8s, 161 /16s and 152 /24s
Percentage of available ARIN address space announced: 73.5
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
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/6, 74/7, 76/8,
198/7, 204/6, 208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 37278
Total RIPE prefixes after maximum aggregation: 24880
Prefixes being announced from the RIPE address blocks: 34328
Unique aggregates announced from the RIPE address blocks: 23086
RIPE Region origin ASes present in the Internet Routing Table: 7901
RIPE Region origin ASes announcing only one prefix: 4117
RIPE Region transit ASes present in the Internet Routing Table: 1292
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 245878976
Equivalent to 14 /8s, 167 /16s and 208 /24s
Percentage of available RIPE address space announced: 73.3
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
RIPE Address Blocks 62/8, 80/5, 88/6, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 11084
Total LACNIC prefixes after maximum aggregation: 3618
Prefixes being announced from the LACNIC address blocks: 9201
Unique aggregates announced from the LACNIC address blocks: 5416
LACNIC Region origin ASes present in the Internet Routing Table: 679
LACNIC Region origin ASes announcing only one prefix: 222
LACNIC Region transit ASes present in the Internet Routing Table: 127
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 26508288
Equivalent to 1 /8s, 148 /16s and 124 /24s
Percentage of available LACNIC address space announced: 39.5
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: 2131
Total AfriNIC prefixes after maximum aggregation: 888
Prefixes being announced from the AfriNIC address blocks: 1444
Unique aggregates announced from the AfriNIC address blocks: 938
AfriNIC Region origin ASes present in the Internet Routing Table: 151
AfriNIC Region origin ASes announcing only one prefix: 47
AfriNIC Region transit ASes present in the Internet Routing Table: 24
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 13
Number of AfriNIC addresses announced to Internet: 4025600
Equivalent to 0 /8s, 61 /16s and 109 /24s
Percentage of available AfriNIC address space announced: 12.0
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 1080 7067 216 CHINANET-BACKBONE
9583 890 109 16 Sify Limited
4755 766 257 67 Videsh Sanchar Nigam Ltd. Aut
4766 681 4436 304 Korea Telecom (KIX)
1221 621 1557 475 Telstra Pty Ltd
9498 571 212 72 BHARTI BT INTERNET LTD.
7545 527 108 69 TPG Internet Pty Ltd
17488 501 31 7 Hathway IP Over Cable Interne
17676 484 6997 107 Softbank BB Corp.
9443 450 110 81 Primus Telecommunications
4802 382 81 176 Wantree Development
18101 340 69 18 Reliance Infocom Ltd Internet
17849 339 22 114 Telecommunications Technology
2907 336 1749 312 SINET Japan
9929 322 221 57 China Netcom Corp.
17557 319 27 160 Pakistan Telecom
17974 305 118 25 PT TELEKOMUNIKASI INDONESIA
7474 300 211 230 SingTel Optus Pty Ltd
9800 270 410 67 CHINA UNICOM
9837 265 77 161 Powertel Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1506 6253 978 AT&T WorldNet Services
4323 1265 733 251 Time Warner Telecom
6197 1013 619 472 BellSouth Network Solutions,
721 1008 21961 305 DLA Systems Automation Center
174 962 5787 910 Cogent Communications
19029 954 151 111 New Edge Networks
701 935 8031 777 UUNET Technologies, Inc.
18566 935 272 8 Covad Communications
2386 877 537 669 AT&T Data Communications Serv
1239 847 2804 599 Sprint
209 718 3615 560 Qwest
19262 687 1992 162 Verizon Global Networks
20115 681 596 363 Charter Communications
22773 648 1735 40 Cox Communications, Inc.
7011 631 217 412 Citizens Utilities
11492 627 86 20 Cable One
6198 592 534 236 BellSouth Network Solutions,
852 583 1085 385 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 550 244 63 Canadian Research Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 577 1951 453 UUNET - Commercial IP service
3352 309 1596 32 Ibernet, Internet Access Netw
3301 308 1071 292 TeliaNet Sweden
8220 292 474 270 COLT Telecommunications
3320 287 3989 238 Deutsche Telekom AG
680 245 2025 242 DFN-IP service G-WiN
3246 232 504 222 Song Networks
6746 228 89 202 Dynamic Network Technologies,
8708 218 276 201 Romania Data Systems S.A.
24863 207 40 9 LINKdotNET AS number
8551 202 198 24 Bezeq International
1257 196 710 171 SWIPnet Swedish IP Network
3269 195 2070 74 TELECOM ITALIA
3215 194 1630 92 France Telecom Transpac
8866 177 37 15 Bulgarian Telecommunication C
786 171 1778 171 The JANET IP Service
5400 171 363 140 BT Ignite European Backbone
9121 168 931 27 TTnet Autonomous System
6830 167 765 35 UPC Distribution Services
30890 163 15 61 SC Kappa Invexim SRL
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 689 1066 229 UniNet S.A. de C.V.
22047 408 158 11 VTR PUNTO NET S.A.
11172 322 110 84 Servicios Alestra S.A de C.V
16814 314 20 8 NSS, S.A.
14117 205 12 6 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
7303 159 75 20 Telecom Argentina Stet-France
6147 153 124 23 Telefonica Del Peru
5639 132 12 9 Telecommunications Services o
11556 132 80 4 Cable-Wireless Panama
21826 132 16 19 INTERCABLE
19169 125 8 28 Telconet
6503 122 149 75 AVANTEL, S.A.
14259 114 10 12 GTD Internet S.A.
23216 107 21 8 RAMtelecom Telecomunicaciones
6505 106 88 78 Global One Communicaoes Ltda
7910 105 7 10 ANDINET ON LINE
19429 102 57 43 E.T.B.
18822 97 6 8 TELEFONICA MANQUEHUE
7315 96 6 3 Grupo Rey Moreno
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 278 803 233 The Internet Solution
8452 169 60 7 TEDATA
6713 145 135 11 Itissalat Al-MAGHRIB
2018 123 314 104 Tertiary Education Network
5536 121 8 18 Internet Egypt Network
24835 118 50 7 RAYA Telecom - Egypt
33783 105 6 2 EEPAD TISP TELECOM & INTERNET
2905 74 155 67 The Internetworking Company o
15475 65 84 4 Nile Online
20928 57 16 2 Noor Advanced Technologies AS
5713 39 294 35 Telkom SA Ltd
12455 38 6 3 Jambonet Autonomous system
15706 31 8 3 Sudatel Internet Exchange Aut
33774 30 7 20 AS Number for Telecom Algeria
23889 26 8 11 MAURITIUS TELECOM
8524 24 1 4 AUCEGYPT Autonomous System
16637 24 14 22 Johnnic e-Ventures
10798 22 1 13 Standard Bank of South Africa
2561 19 6 2 Egyptian Universities Network
21491 19 17 2 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1265 1014 Time Warner Telecom
18566 935 927 Covad Communications
9583 890 874 Sify Limited
4134 1080 864 CHINANET-BACKBONE
19029 954 843 New Edge Networks
721 1008 703 DLA Systems Automation Center
4755 766 699 Videsh Sanchar Nigam Ltd. Aut
22773 648 608 Cox Communications, Inc.
11492 627 607 Cable One
6197 1013 541 BellSouth Network Solutions,
19262 687 525 Verizon Global Networks
19916 563 509 OLM LLC
5668 535 505 CenturyTel Internet Holdings,
9498 571 499 BHARTI BT INTERNET LTD.
17488 501 494 Hathway IP Over Cable Interne
855 550 487 Canadian Research Network
8151 689 460 UniNet S.A. de C.V.
7545 527 458 TPG Internet Pty Ltd
7757 477 458 AT&T Broadband
3602 537 428 Sprint Canada, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65241 PRIVATE 65.90.71.0/24 10794 Bank of America
65005 PRIVATE 159.153.148.0/22 24989 IX Europe Frankfurt
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
64624 PRIVATE 204.114.220.0/24 18113 Pfizer Pte Ltd Singa
64624 PRIVATE 204.114.221.0/24 18113 Pfizer Pte Ltd Singa
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
121.128.0.0/11 4766 Korea Telecom (KIX)
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
192.119.135.0/24 270 NASA
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 /10:9 /11:28 /12:88
/13:198 /14:358 /15:698 /16:8791 /17:3179 /18:5237
/19:11558 /20:13040 /21:11268 /22:14480 /23:15539 /24:101584
/25:372 /26:254 /27:221 /28:62 /29:70 /30:34
/31:0 /32:32
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 918 935 Covad Communications
19029 885 954 New Edge Networks
6197 801 1013 BellSouth Network Solutions,
7018 798 1506 AT&T WorldNet Services
9583 719 890 Sify Limited
11492 618 627 Cable One
4323 608 1265 Time Warner Telecom
2386 597 877 AT&T Data Communications Serv
19916 557 563 OLM LLC
7011 540 631 Citizens Utilities
4766 491 681 Korea Telecom (KIX)
7757 459 477 AT&T Broadband
6198 443 592 BellSouth Network Solutions,
855 425 550 Canadian Research Network
5668 416 535 CenturyTel Internet Holdings,
1239 379 847 Sprint
15270 374 405 PaeTec.net -a division of Pae
702 358 577 UUNET - Commercial IP service
6517 354 384 Yipes Communications, Inc.
8151 339 689 UniNet S.A. de C.V.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:40 12:1627 13:1 15:12 16:3
17:3 18:4 20:43 24:883 25:1 30:2
32:66 38:210 40:54 44:3 47:6 52:4
55:1 56:3 57:31 58:145 59:195 60:176
61:829 62:764 63:1924 64:3130 65:2242 66:3056
67:629 68:684 69:1475 70:337 71:76 72:694
73:23 74:29 80:774 81:632 82:615 83:381
84:379 85:524 86:376 87:318 88:72 89:151
124:224 125:369 128:159 129:177 130:107 131:317
132:31 133:8 134:158 135:46 136:173 137:71
138:198 139:67 140:441 141:134 142:386 143:161
144:224 145:42 146:317 147:134 148:321 149:186
150:114 151:81 152:63 153:107 154:6 155:192
156:97 157:142 158:166 159:171 160:87 161:73
162:251 163:145 164:179 165:212 166:163 167:245
168:478 169:134 170:331 171:12 172:1 183:1
190:80 192:5770 193:3362 194:2586 195:1825 196:838
198:3890 199:3241 200:4361 201:867 202:6599 203:6814
204:3874 205:2098 206:2416 207:2923 208:2049 209:3846
210:1940 211:700 212:1254 213:1470 214:340 215:41
216:4096 217:1173 218:263 219:181 220:651 221:357
222:147
End of report
