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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 23 Apr, 2006
Analysis Summary
----------------
BGP routing table entries examined: 187051
Prefixes after maximum aggregation: 103322
Unique aggregates announced to Internet: 91535
Total ASes present in the Internet Routing Table: 21962
Origin-only ASes present in the Internet Routing Table: 19112
Origin ASes announcing only one prefix: 9079
Transit ASes present in the Internet Routing Table: 2850
Transit-only ASes present in the Internet Routing Table: 60
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: 4
Unregistered ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1509638560
Equivalent to 89 /8s, 251 /16s and 65 /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: 92317
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 39229
Total APNIC prefixes after maximum aggregation: 16457
Prefixes being announced from the APNIC address blocks: 36960
Unique aggregates announced from the APNIC address blocks: 18180
APNIC Region origin ASes present in the Internet Routing Table: 2541
APNIC Region origin ASes announcing only one prefix: 715
APNIC Region transit ASes present in the Internet Routing Table: 396
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 222385120
Equivalent to 13 /8s, 65 /16s and 83 /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: 57453
Prefixes being announced from the ARIN address blocks: 76447
Unique aggregates announced from the ARIN address blocks: 29421
ARIN Region origin ASes present in the Internet Routing Table: 10631
ARIN Region origin ASes announcing only one prefix: 3978
ARIN Region transit ASes present in the Internet Routing Table: 984
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 295798272
Equivalent to 17 /8s, 161 /16s and 134 /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: 37287
Total RIPE prefixes after maximum aggregation: 24885
Prefixes being announced from the RIPE address blocks: 34321
Unique aggregates announced from the RIPE address blocks: 23105
RIPE Region origin ASes present in the Internet Routing Table: 7901
RIPE Region origin ASes announcing only one prefix: 4118
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: 245882048
Equivalent to 14 /8s, 167 /16s and 220 /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: 11083
Total LACNIC prefixes after maximum aggregation: 3624
Prefixes being announced from the LACNIC address blocks: 9202
Unique aggregates announced from the LACNIC address blocks: 5417
LACNIC Region origin ASes present in the Internet Routing Table: 678
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: 26505216
Equivalent to 1 /8s, 148 /16s and 112 /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: 2128
Total AfriNIC prefixes after maximum aggregation: 903
Prefixes being announced from the AfriNIC address blocks: 1458
Unique aggregates announced from the AfriNIC address blocks: 955
AfriNIC Region origin ASes present in the Internet Routing Table: 152
AfriNIC Region origin ASes announcing only one prefix: 46
AfriNIC Region transit ASes present in the Internet Routing Table: 25
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 13
Number of AfriNIC addresses announced to Internet: 4043776
Equivalent to 0 /8s, 61 /16s and 180 /24s
Percentage of available AfriNIC address space announced: 12.1
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 570 212 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 316 27 161 Pakistan Telecom
17974 307 120 27 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 1502 6252 974 AT&T WorldNet Services
4323 1265 733 251 Time Warner Telecom
6197 1013 619 472 BellSouth Network Solutions,
721 1006 21961 305 DLA Systems Automation Center
174 961 5787 909 Cogent Communications
19029 954 151 111 New Edge Networks
18566 935 272 8 Covad Communications
701 931 8014 773 UUNET Technologies, Inc.
2386 878 537 670 AT&T Data Communications Serv
1239 847 2804 599 Sprint
209 718 3615 560 Qwest
19262 687 1992 162 Verizon Global Networks
20115 680 596 362 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
855 549 244 63 Canadian Research Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 579 1951 455 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 694 1067 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 105 88 77 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 93 6 12 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
12455 43 6 6 Jambonet Autonomous system
5713 39 294 35 Telkom SA Ltd
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 1006 701 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 570 498 BHARTI BT INTERNET LTD.
17488 501 494 Hathway IP Over Cable Interne
855 549 486 Canadian Research Network
8151 694 465 UniNet S.A. de C.V.
7545 527 458 TPG Internet Pty Ltd
7757 477 458 AT&T Broadband
3602 538 429 Sprint Canada, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
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 /16:8790 /17:3180 /18:5237
/19:11555 /20:13042 /21:11253 /22:14463 /23:15543 /24:101539
/25:371 /26:255 /27:220 /28:63 /29:70 /30:34
/31:0 /32:31
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 794 1502 AT&T WorldNet Services
9583 719 890 Sify Limited
11492 618 627 Cable One
4323 608 1265 Time Warner Telecom
2386 598 878 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,
855 424 549 Canadian Research Network
5668 416 535 CenturyTel Internet Holdings,
1239 379 847 Sprint
15270 374 405 PaeTec.net -a division of Pae
702 360 579 UUNET - Commercial IP service
6517 355 385 Yipes Communications, Inc.
17849 339 339 Telecommunications Technology
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:40 12:1625 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 60:182
61:830 62:765 63:1921 64:3131 65:2238 66:3054
67:629 68:684 69:1479 70:337 71:76 72:693
73:23 74:29 80:776 81:630 82:617 83:384
84:379 85:523 86:376 87:318 88:72 89:149
124:224 125:367 128:157 129:177 130:107 131:317
132:31 133:8 134:160 135:46 136:173 137:71
138:192 139:66 140:463 141:134 142:384 143:161
144:224 145:42 146:325 147:134 148:320 149:186
150:114 151:81 152:64 153:107 154:6 155:196
156:96 157:142 158:166 159:169 160:87 161:73
162:245 163:145 164:179 165:192 166:163 167:245
168:476 169:134 170:330 171:12 172:1 183:1
190:95 192:5759 193:3362 194:2586 195:1824 196:849
198:3891 199:3234 200:4348 201:866 202:6586 203:6787
204:3876 205:2104 206:2412 207:2926 208:2049 209:3848
210:1937 211:699 212:1256 213:1470 214:341 215:41
216:4098 217:1170 218:263 219:181 220:651 221:357
222:147
End of report
