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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 26 Apr, 2006
Analysis Summary
----------------
BGP routing table entries examined: 187318
Prefixes after maximum aggregation: 103382
Unique aggregates announced to Internet: 91540
Total ASes present in the Internet Routing Table: 21995
Origin-only ASes present in the Internet Routing Table: 19142
Origin ASes announcing only one prefix: 9103
Transit ASes present in the Internet Routing Table: 2853
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: 3
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: 1510537120
Equivalent to 90 /8s, 8 /16s and 247 /24s
Percentage of available address space announced: 40.8
Percentage of allocated address space announced: 60.1
Percentage of available address space allocated: 67.8
Total number of prefixes smaller than registry allocations: 92431
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 39426
Total APNIC prefixes after maximum aggregation: 16490
Prefixes being announced from the APNIC address blocks: 37136
Unique aggregates announced from the APNIC address blocks: 18223
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: 391
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 222528992
Equivalent to 13 /8s, 67 /16s and 133 /24s
Percentage of available APNIC address space announced: 69.6
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: 97408
Total ARIN prefixes after maximum aggregation: 57510
Prefixes being announced from the ARIN address blocks: 76467
Unique aggregates announced from the ARIN address blocks: 29395
ARIN Region origin ASes present in the Internet Routing Table: 10649
ARIN Region origin ASes announcing only one prefix: 3985
ARIN Region transit ASes present in the Internet Routing Table: 980
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 295953408
Equivalent to 17 /8s, 163 /16s and 228 /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: 37282
Total RIPE prefixes after maximum aggregation: 24889
Prefixes being announced from the RIPE address blocks: 34328
Unique aggregates announced from the RIPE address blocks: 23107
RIPE Region origin ASes present in the Internet Routing Table: 7908
RIPE Region origin ASes announcing only one prefix: 4132
RIPE Region transit ASes present in the Internet Routing Table: 1297
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 246235072
Equivalent to 14 /8s, 173 /16s and 63 /24s
Percentage of available RIPE address space announced: 73.4
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: 11061
Total LACNIC prefixes after maximum aggregation: 3602
Prefixes being announced from the LACNIC address blocks: 9178
Unique aggregates announced from the LACNIC address blocks: 5411
LACNIC Region origin ASes present in the Internet Routing Table: 679
LACNIC Region origin ASes announcing only one prefix: 221
LACNIC Region transit ASes present in the Internet Routing Table: 127
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 26520320
Equivalent to 1 /8s, 148 /16s and 171 /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: 2138
Total AfriNIC prefixes after maximum aggregation: 891
Prefixes being announced from the AfriNIC address blocks: 1457
Unique aggregates announced from the AfriNIC address blocks: 946
AfriNIC Region origin ASes present in the Internet Routing Table: 153
AfriNIC Region origin ASes announcing only one prefix: 47
AfriNIC Region transit ASes present in the Internet Routing Table: 26
Average AfriNIC Region AS path length visible: 3.5
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 4043520
Equivalent to 0 /8s, 61 /16s and 179 /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 1094 7072 220 CHINANET-BACKBONE
9583 890 109 16 Sify Limited
4755 766 257 66 Videsh Sanchar Nigam Ltd. Aut
4766 679 4435 306 Korea Telecom (KIX)
1221 618 1556 472 Telstra Pty Ltd
9498 569 212 72 BHARTI BT INTERNET LTD.
7545 526 108 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
17849 344 22 112 Telecommunications Technology
18101 340 69 18 Reliance Infocom Ltd Internet
2907 336 1749 312 SINET Japan
17557 325 27 158 Pakistan Telecom
9929 322 221 57 China Netcom Corp.
17974 307 120 26 PT TELEKOMUNIKASI INDONESIA
7474 300 211 230 SingTel Optus Pty Ltd
9800 272 410 67 CHINA UNICOM
4837 262 2890 108 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1508 6253 978 AT&T WorldNet Services
4323 1266 733 251 Time Warner Telecom
6197 1013 619 472 BellSouth Network Solutions,
721 1006 21945 304 DLA Systems Automation Center
174 960 5787 908 Cogent Communications
19029 954 151 111 New Edge Networks
701 937 8031 778 UUNET Technologies, Inc.
18566 935 272 8 Covad Communications
2386 878 537 670 AT&T Data Communications Serv
1239 850 2804 602 Sprint
209 715 3615 558 Qwest
19262 688 2001 160 Verizon Global Networks
20115 679 595 361 Charter Communications
22773 653 1737 44 Cox Communications, Inc.
7011 631 217 412 Citizens Utilities
11492 629 86 20 Cable One
6198 592 534 236 BellSouth Network Solutions,
852 582 1085 384 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
702 580 1951 456 UUNET - Commercial IP service
3352 310 1612 29 Ibernet, Internet Access Netw
3301 308 1071 292 TeliaNet Sweden
8220 291 474 269 COLT Telecommunications
3320 289 3989 239 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 196 742 170 SWIPnet Swedish IP Network
3215 196 1662 93 France Telecom Transpac
3269 195 2070 74 TELECOM ITALIA
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 700 1067 228 UniNet S.A. de C.V.
22047 408 158 11 VTR PUNTO NET S.A.
11172 323 110 84 Servicios Alestra S.A de C.V
16814 315 20 8 NSS, S.A.
14117 205 12 6 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
7303 158 75 19 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 108 21 9 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 170 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 73 155 66 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 39 6 4 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 1266 1015 Time Warner Telecom
18566 935 927 Covad Communications
4134 1094 874 CHINANET-BACKBONE
9583 890 874 Sify Limited
19029 954 843 New Edge Networks
721 1006 702 DLA Systems Automation Center
4755 766 700 Videsh Sanchar Nigam Ltd. Aut
22773 653 609 Cox Communications, Inc.
11492 629 609 Cable One
6197 1013 541 BellSouth Network Solutions,
19262 688 528 Verizon Global Networks
19916 563 509 OLM LLC
5668 535 505 CenturyTel Internet Holdings,
9498 569 497 BHARTI BT INTERNET LTD.
17488 501 494 Hathway IP Over Cable Interne
855 550 487 Canadian Research Network
8151 700 472 UniNet S.A. de C.V.
7757 477 458 AT&T Broadband
7545 526 457 TPG Internet Pty Ltd
3602 538 429 Sprint Canada, Inc.
List of Unregistered Origin 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
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 /14:359 /15:699 /16:8799 /17:3180 /18:5240
/19:11571 /20:13051 /21:11283 /22:14474 /23:15566 /24:101723
/25:367 /26:258 /27:202 /28:61 /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 799 1508 AT&T WorldNet Services
9583 719 890 Sify Limited
11492 620 629 Cable One
4323 609 1266 Time Warner Telecom
2386 598 878 AT&T Data Communications Serv
19916 557 563 OLM LLC
7011 540 631 Citizens Utilities
4766 489 679 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 381 850 Sprint
15270 374 405 PaeTec.net -a division of Pae
702 360 580 UUNET - Commercial IP service
6517 355 385 Yipes Communications, Inc.
17849 344 344 Telecommunications Technology
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:40 12:1631 13:1 15:12 16:3
17:3 18:4 20:43 24:886 25:1 30:2
32:57 38:209 40:54 44:3 47:6 52:4
55:1 56:3 57:31 58:147 59:195 60:182
61:826 62:768 63:1930 64:3111 65:2244 66:3104
67:629 68:682 69:1485 70:336 71:77 72:695
73:23 74:29 80:779 81:631 82:618 83:371
84:382 85:527 86:346 87:317 88:75 89:152
124:279 125:368 128:164 129:181 130:107 131:320
132:31 133:8 134:156 135:46 136:177 137:70
138:198 139:67 140:463 141:134 142:386 143:161
144:225 145:43 146:325 147:138 148:325 149:186
150:114 151:81 152:64 153:107 154:6 155:196
156:97 157:142 158:169 159:170 160:85 161:73
162:252 163:145 164:179 165:193 166:163 167:246
168:479 169:134 170:331 171:13 172:1 183:1
190:52 192:5756 193:3359 194:2585 195:1832 196:849
198:3899 199:3245 200:4362 201:869 202:6599 203:6823
204:3880 205:2090 206:2415 207:2938 208:2052 209:3843
210:1936 211:700 212:1255 213:1462 214:350 215:41
216:4096 217:1174 218:264 219:182 220:652 221:358
222:148
End of report
