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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 06 Oct, 2006
Analysis Summary
----------------
BGP routing table entries examined: 199612
Prefixes after maximum aggregation: 108563
Unique aggregates announced to Internet: 96749
Total ASes present in the Internet Routing Table: 23293
Origin-only ASes present in the Internet Routing Table: 20291
Origin ASes announcing only one prefix: 9751
Transit ASes present in the Internet Routing Table: 3002
Transit-only ASes present in the Internet Routing Table: 73
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 29
Max AS path prepend of ASN (36728) 27
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: 10
Number of addresses announced to Internet: 1595705868
Equivalent to 95 /8s, 28 /16s and 138 /24s
Percentage of available address space announced: 43.1
Percentage of allocated address space announced: 59.5
Percentage of available address space allocated: 72.3
Total number of prefixes smaller than registry allocations: 100043
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 43687
Total APNIC prefixes after maximum aggregation: 17530
Prefixes being announced from the APNIC address blocks: 41329
Unique aggregates announced from the APNIC address blocks: 18413
APNIC Region origin ASes present in the Internet Routing Table: 2708
APNIC Region origin ASes announcing only one prefix: 756
APNIC Region transit ASes present in the Internet Routing Table: 408
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 262786144
Equivalent to 15 /8s, 169 /16s and 204 /24s
Percentage of available APNIC address space announced: 82.2
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: 100523
Total ARIN prefixes after maximum aggregation: 59455
Prefixes being announced from the ARIN address blocks: 73868
Unique aggregates announced from the ARIN address blocks: 27900
ARIN Region origin ASes present in the Internet Routing Table: 11034
ARIN Region origin ASes announcing only one prefix: 4193
ARIN Region transit ASes present in the Internet Routing Table: 1020
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 29
Number of ARIN addresses announced to Internet: 303825664
Equivalent to 18 /8s, 28 /16s and 3 /24s
Percentage of available ARIN address space announced: 67.1
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, 96/6, 199/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 40637
Total RIPE prefixes after maximum aggregation: 26843
Prefixes being announced from the RIPE address blocks: 37562
Unique aggregates announced from the RIPE address blocks: 25074
RIPE Region origin ASes present in the Internet Routing Table: 8584
RIPE Region origin ASes announcing only one prefix: 4507
RIPE Region transit ASes present in the Internet Routing Table: 1391
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 266821028
Equivalent to 15 /8s, 231 /16s and 93 /24s
Percentage of available RIPE address space announced: 72.3
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
40960-41983
RIPE Address Blocks 62/8, 77/8, 78/7, 80/5, 88/6, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 12426
Total LACNIC prefixes after maximum aggregation: 3811
Prefixes being announced from the LACNIC address blocks: 10436
Unique aggregates announced from the LACNIC address blocks: 6204
LACNIC Region origin ASes present in the Internet Routing Table: 730
LACNIC Region origin ASes announcing only one prefix: 248
LACNIC Region transit ASes present in the Internet Routing Table: 129
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 32961792
Equivalent to 1 /8s, 246 /16s and 245 /24s
Percentage of available LACNIC address space announced: 49.1
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: 2335
Total AfriNIC prefixes after maximum aggregation: 924
Prefixes being announced from the AfriNIC address blocks: 1646
Unique aggregates announced from the AfriNIC address blocks: 1085
AfriNIC Region origin ASes present in the Internet Routing Table: 164
AfriNIC Region origin ASes announcing only one prefix: 47
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: 14
Number of AfriNIC addresses announced to Internet: 4294656
Equivalent to 0 /8s, 65 /16s and 136 /24s
Percentage of available AfriNIC address space announced: 12.8
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 1241 8174 236 CHINANET-BACKBONE
4755 1001 255 66 Videsh Sanchar Nigam Ltd. Aut
9583 956 109 19 Sify Limited
9498 855 212 72 BHARTI BT INTERNET LTD.
4766 741 4436 307 Korea Telecom (KIX)
1221 608 1780 466 Telstra Pty Ltd
7545 540 124 74 TPG Internet Pty Ltd
17488 534 33 12 Hathway IP Over Cable Interne
17676 499 10933 63 Softbank BB Corp.
18101 458 85 18 Reliance Infocom Ltd Internet
9443 454 111 74 Primus Telecommunications
9942 424 77 125 COMindico Australia
17849 424 31 127 Telecommunications Technology
4802 413 86 150 Wantree Development
4812 410 741 63 China Telecom (Shanghai)
17557 362 30 177 Pakistan Telecom
17974 360 129 12 PT TELEKOMUNIKASI INDONESIA
2907 336 1734 312 SINET Japan
10139 326 23 6 Meridian Telekoms
4837 324 3556 140 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1531 6225 982 AT&T WorldNet Services
2386 1169 610 743 AT&T Data Communications Serv
6197 1025 643 481 BellSouth Network Solutions,
4323 1023 783 292 Time Warner Telecom
174 969 6824 893 Cogent Communications
18566 966 272 8 Covad Communications
721 963 21909 303 DLA Systems Automation Center
701 954 6742 783 UUNET Technologies, Inc.
1239 832 2763 588 Sprint
11492 750 90 13 Cable One
19262 749 2372 189 Verizon Global Networks
20115 747 671 388 Charter Communications
22773 713 1744 46 Cox Communications, Inc.
209 704 3630 553 Qwest
7011 671 208 424 Citizens Utilities
852 589 1070 386 Telus Advanced Communications
6478 589 1270 383 AT&T Worldnet Services
19916 565 49 54 OLM LLC
855 544 249 74 Canadian Research Network
5668 536 145 18 CenturyTel Internet Holdings,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 546 1929 425 UUNET - Commercial IP service
3301 310 1184 294 TeliaNet Sweden
3320 297 5013 242 Deutsche Telekom AG
8220 279 455 265 COLT Telecommunications
24863 273 41 30 LINKdotNET AS number
680 251 2041 247 DFN-IP service G-WiN
6746 244 91 222 Dynamic Network Technologies,
3246 229 485 219 Song Networks
8708 220 278 207 Romania Data Systems S.A.
9116 220 134 23 Goldenlines main autonomous s
1257 212 740 168 SWIPnet Swedish IP Network
3215 210 1832 96 France Telecom Transpac
3269 203 2261 73 TELECOM ITALIA
30890 201 18 78 SC Kappa Invexim SRL
8551 200 182 27 Bezeq International
6830 197 879 43 UPC Distribution Services
8866 184 37 15 Bulgarian Telecommunication C
5416 181 12 11 BATELCO-BH
3300 175 171 97 AUCS Communications Services
786 171 1779 171 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 603 1811 224 UniNet S.A. de C.V.
11172 376 99 88 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
22047 303 206 11 VTR PUNTO NET S.A.
6147 263 140 24 Telefonica Del Peru
6471 255 74 30 ENTEL CHILE S.A.
14117 229 15 8 Telefonica del Sur S.A.
11830 215 299 20 Instituto Costarricense de El
7303 205 91 26 Telecom Argentina Stet-France
6503 182 168 84 AVANTEL, S.A.
10481 181 72 8 Prima S.A.
23216 146 21 10 RAMtelecom Telecomunicaciones
21826 144 18 29 INTERCABLE
7910 138 9 18 ANDINET ON LINE
19429 137 83 39 E.T.B.
19169 136 9 21 Telconet
11556 132 96 4 Cable-Wireless Panama
18822 129 8 10 TELEFONICA MANQUEHUE
14522 118 18 9 SatNet S.A.
7738 113 410 20 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 290 803 233 The Internet Solution
8452 173 60 7 TEDATA
6713 145 139 12 Itissalat Al-MAGHRIB
2018 134 297 111 Tertiary Education Network
15475 130 84 4 Nile Online
5536 121 8 18 Internet Egypt Network
24835 116 48 6 RAYA Telecom - Egypt
33783 108 6 3 EEPAD TISP TELECOM & INTERNET
2905 76 157 69 The Internetworking Company o
2561 55 6 2 Egyptian Universities Network
15706 55 12 4 Sudatel Internet Exchange Aut
5713 36 293 32 Telkom SA Ltd
12455 36 6 3 Jambonet Autonomous system
33774 34 7 21 AS Number for Telecom Algeria
23889 27 8 12 MAURITIUS TELECOM
21280 26 4 4 Swift Global Kenya Ltd.Is an
16637 24 19 23 Johnnic e-Ventures
10798 23 1 14 Standard Bank of South Africa
21491 23 17 2 UTL On-line is RF broadband I
8524 22 1 5 AUCEGYPT Autonomous System
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4134 1241 1005 CHINANET-BACKBONE
18566 966 958 Covad Communications
9583 956 937 Sify Limited
4755 1001 935 Videsh Sanchar Nigam Ltd. Aut
9498 855 783 BHARTI BT INTERNET LTD.
11492 750 737 Cable One
4323 1023 731 Time Warner Telecom
22773 713 667 Cox Communications, Inc.
721 963 660 DLA Systems Automation Center
19262 749 560 Verizon Global Networks
6197 1025 544 BellSouth Network Solutions,
17488 534 522 Hathway IP Over Cable Interne
5668 536 518 CenturyTel Internet Holdings,
19916 565 511 OLM LLC
855 544 470 Canadian Research Network
7545 540 466 TPG Internet Pty Ltd
18101 458 440 Reliance Infocom Ltd Internet
17676 499 436 Softbank BB Corp.
4766 741 434 Korea Telecom (KIX)
15270 468 433 PaeTec.net -a division of Pae
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65530 PRIVATE 64.135.249.0/24 6536 MountainNet, Inc.
65530 PRIVATE 64.135.250.0/23 6536 MountainNet, Inc.
65530 PRIVATE 64.135.252.0/22 6536 MountainNet, Inc.
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
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
172.33.1.0/24 7018 AT&T WorldNet Services
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
192.249.0.0/20 3450 University of Tennessee, Knox
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:18 /9:9 /10:13 /11:29 /12:106
/13:214 /14:384 /15:765 /16:9030 /17:3500 /18:5709
/19:12312 /20:13937 /21:12279 /22:15597 /23:17013 /24:107389
/25:439 /26:421 /27:192 /28:68 /29:41 /30:96
/31:0 /32:51
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 949 966 Covad Communications
2386 887 1169 AT&T Data Communications Serv
7018 809 1531 AT&T WorldNet Services
6197 805 1025 BellSouth Network Solutions,
9583 788 956 Sify Limited
11492 738 750 Cable One
7011 578 671 Citizens Utilities
19916 559 565 OLM LLC
4766 550 741 Korea Telecom (KIX)
9498 512 855 BHARTI BT INTERNET LTD.
15270 437 468 PaeTec.net -a division of Pae
4755 432 1001 Videsh Sanchar Nigam Ltd. Aut
855 424 544 Canadian Research Network
5668 418 536 CenturyTel Internet Holdings,
17849 412 424 Telecommunications Technology
1239 405 832 Sprint
18101 390 458 Reliance Infocom Ltd Internet
22773 373 713 Cox Communications, Inc.
33588 371 392 Bresnan Communications, LLC.
17488 354 534 Hathway IP Over Cable Interne
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:52 12:1651 13:1 15:16 16:3
17:3 18:4 20:41 24:822 25:1 32:58
38:259 40:56 41:22 44:3 47:7 52:4
53:1 55:1 56:3 57:25 58:220 59:273
60:215 61:902 62:977 63:1905 64:3128 65:2249
66:3041 67:644 68:658 69:1650 70:395 71:89
72:944 74:82 75:8 80:829 81:696 82:610
83:397 84:406 85:701 86:428 87:576 88:200
89:489 121:53 122:13 124:379 125:650 128:284
129:229 130:120 131:311 132:35 133:9 134:167
135:51 136:177 137:96 138:130 139:47 140:527
141:134 142:344 143:192 144:238 145:43 146:320
147:137 148:362 149:177 150:115 151:120 152:76
153:121 154:5 155:231 156:160 157:163 158:154
159:171 160:98 161:85 162:218 163:154 164:232
165:217 166:239 167:249 168:486 169:129 170:376
171:11 172:1 190:224 192:5770 193:3497 194:2732
195:2086 196:906 198:3881 199:3322 200:4478 201:966
202:6906 203:7156 204:3924 205:2093 206:2420 207:2957
208:2310 209:3504 210:2177 211:837 212:1350 213:1504
214:382 215:39 216:4072 217:1131 218:341 219:262
220:789 221:359 222:225
End of report
Report Website: http://thyme.apnic.net
