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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 22 Oct, 2006
Analysis Summary
----------------
BGP routing table entries examined: 201207
Prefixes after maximum aggregation: 109064
Unique aggregates announced to Internet: 97757
Total ASes present in the Internet Routing Table: 23417
Origin-only ASes present in the Internet Routing Table: 20398
Origin ASes announcing only one prefix: 9805
Transit ASes present in the Internet Routing Table: 3019
Transit-only ASes present in the Internet Routing Table: 74
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: 2
Unregistered ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 10
Number of addresses announced to Internet: 1617488876
Equivalent to 96 /8s, 104 /16s and 235 /24s
Percentage of available address space announced: 43.6
Percentage of allocated address space announced: 60.4
Percentage of available address space allocated: 72.3
Total number of prefixes smaller than registry allocations: 101189
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 44025
Total APNIC prefixes after maximum aggregation: 17655
Prefixes being announced from the APNIC address blocks: 41610
Unique aggregates announced from the APNIC address blocks: 18394
APNIC Region origin ASes present in the Internet Routing Table: 2725
APNIC Region origin ASes announcing only one prefix: 757
APNIC Region transit ASes present in the Internet Routing Table: 407
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 263632736
Equivalent to 15 /8s, 182 /16s and 183 /24s
Percentage of available APNIC address space announced: 82.4
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: 100953
Total ARIN prefixes after maximum aggregation: 59596
Prefixes being announced from the ARIN address blocks: 74220
Unique aggregates announced from the ARIN address blocks: 28024
ARIN Region origin ASes present in the Internet Routing Table: 11062
ARIN Region origin ASes announcing only one prefix: 4206
ARIN Region transit ASes present in the Internet Routing Table: 1031
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 29
Number of ARIN addresses announced to Internet: 305295744
Equivalent to 18 /8s, 50 /16s and 113 /24s
Percentage of available ARIN address space announced: 67.4
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: 40950
Total RIPE prefixes after maximum aggregation: 27014
Prefixes being announced from the RIPE address blocks: 37914
Unique aggregates announced from the RIPE address blocks: 25345
RIPE Region origin ASes present in the Internet Routing Table: 8656
RIPE Region origin ASes announcing only one prefix: 4554
RIPE Region transit ASes present in the Internet Routing Table: 1395
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 268865796
Equivalent to 16 /8s, 6 /16s and 145 /24s
Percentage of available RIPE address space announced: 72.8
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: 12943
Total LACNIC prefixes after maximum aggregation: 3872
Prefixes being announced from the LACNIC address blocks: 10930
Unique aggregates announced from the LACNIC address blocks: 6721
LACNIC Region origin ASes present in the Internet Routing Table: 736
LACNIC Region origin ASes announcing only one prefix: 241
LACNIC Region transit ASes present in the Internet Routing Table: 128
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 17
Number of LACNIC addresses announced to Internet: 33377536
Equivalent to 1 /8s, 253 /16s and 77 /24s
Percentage of available LACNIC address space announced: 49.7
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: 2334
Total AfriNIC prefixes after maximum aggregation: 927
Prefixes being announced from the AfriNIC address blocks: 1599
Unique aggregates announced from the AfriNIC address blocks: 1074
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: 3.6
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 4293888
Equivalent to 0 /8s, 65 /16s and 133 /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 1246 8288 239 CHINANET-BACKBONE
4755 1010 255 64 Videsh Sanchar Nigam Ltd. Aut
9583 954 109 15 Sify Limited
9498 862 212 64 BHARTI BT INTERNET LTD.
4766 736 4436 307 Korea Telecom (KIX)
1221 609 1780 468 Telstra Pty Ltd
7545 542 124 74 TPG Internet Pty Ltd
17488 538 33 13 Hathway IP Over Cable Interne
17676 500 10934 64 Softbank BB Corp.
18101 462 86 21 Reliance Infocom Ltd Internet
9443 454 111 74 Primus Telecommunications
17849 430 36 126 Telecommunications Technology
9942 429 77 125 COMindico Australia
4812 413 741 63 China Telecom (Shanghai)
4802 412 86 150 Wantree Development
17557 365 31 177 Pakistan Telecom
17974 365 129 12 PT TELEKOMUNIKASI INDONESIA
10139 359 23 6 Meridian Telekoms
2907 333 1733 310 SINET Japan
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 1534 6210 992 AT&T WorldNet Services
2386 1178 618 751 AT&T Data Communications Serv
4323 1033 786 291 Time Warner Telecom
6197 1022 638 484 BellSouth Network Solutions,
18566 968 272 8 Covad Communications
721 963 21925 307 DLA Systems Automation Center
174 959 6823 884 Cogent Communications
701 952 6739 772 UUNET Technologies, Inc.
1239 842 2756 591 Sprint
19262 760 2410 177 Verizon Global Networks
11492 755 90 16 Cable One
20115 753 676 397 Charter Communications
22773 720 1744 46 Cox Communications, Inc.
209 707 3633 556 Qwest
7011 683 210 428 Citizens Utilities
852 591 1071 388 Telus Advanced Communications
19916 565 49 54 OLM LLC
855 539 250 74 Canadian Research Network
5668 538 145 18 CenturyTel Internet Holdings,
6478 534 1289 338 AT&T Worldnet Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 544 1928 424 UUNET - Commercial IP service
3301 313 1200 297 TeliaNet Sweden
3320 306 5016 247 Deutsche Telekom AG
8220 279 455 265 COLT Telecommunications
24863 273 41 30 LINKdotNET AS number
12715 263 40 29 Jazz Telecom S.A.
680 251 2041 247 DFN-IP service G-WiN
6746 246 91 224 Dynamic Network Technologies,
3246 228 469 218 Song Networks
9116 223 134 23 Goldenlines main autonomous s
8708 222 279 209 Romania Data Systems S.A.
8551 216 198 28 Bezeq International
3215 214 1872 93 France Telecom Transpac
1257 213 740 169 SWIPnet Swedish IP Network
30890 205 18 78 SC Kappa Invexim SRL
3269 204 2277 74 TELECOM ITALIA
6830 200 879 43 UPC Distribution Services
8866 191 37 15 Bulgarian Telecommunication C
5416 186 12 11 BATELCO-BH
3300 174 171 96 AUCS Communications Services
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 714 1890 224 UniNet S.A. de C.V.
11830 459 299 27 Instituto Costarricense de El
11172 432 100 87 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
22047 303 206 11 VTR PUNTO NET S.A.
6471 267 74 30 ENTEL CHILE S.A.
6147 264 142 22 Telefonica Del Peru
14117 235 15 8 Telefonica del Sur S.A.
7303 209 93 28 Telecom Argentina Stet-France
6503 189 169 86 AVANTEL, S.A.
10481 181 72 8 Prima S.A.
21826 145 19 30 INTERCABLE
7910 138 9 11 ANDINET ON LINE
19169 136 9 21 Telconet
19429 136 84 40 E.T.B.
23216 135 19 43 RAMtelecom Telecomunicaciones
11556 132 96 4 Cable-Wireless Panama
18822 129 8 10 TELEFONICA MANQUEHUE
14522 118 18 9 SatNet S.A.
7738 115 410 20 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 294 804 233 The Internet Solution
8452 166 60 7 TEDATA
6713 144 135 11 Itissalat Al-MAGHRIB
15475 133 84 4 Nile Online
2018 132 297 111 Tertiary Education Network
5536 122 8 17 Internet Egypt Network
24835 116 48 6 RAYA Telecom - Egypt
33783 109 6 3 EEPAD TISP TELECOM & INTERNET
2905 75 157 68 The Internetworking Company o
2561 55 6 2 Egyptian Universities Network
15706 52 12 4 Sudatel Internet Exchange Aut
12455 39 6 3 Jambonet Autonomous system
5713 36 293 32 Telkom SA Ltd
33774 34 7 21 AS Number for Telecom Algeria
8524 30 2 6 AUCEGYPT Autonomous System
23889 28 9 13 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
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4134 1246 1007 CHINANET-BACKBONE
18566 968 960 Covad Communications
4755 1010 946 Videsh Sanchar Nigam Ltd. Aut
9583 954 939 Sify Limited
9498 862 798 BHARTI BT INTERNET LTD.
4323 1033 742 Time Warner Telecom
11492 755 739 Cable One
22773 720 674 Cox Communications, Inc.
721 963 656 DLA Systems Automation Center
19262 760 583 Verizon Global Networks
6197 1022 538 BellSouth Network Solutions,
17488 538 525 Hathway IP Over Cable Interne
5668 538 520 CenturyTel Internet Holdings,
19916 565 511 OLM LLC
8151 714 490 UniNet S.A. de C.V.
7545 542 468 TPG Internet Pty Ltd
855 539 465 Canadian Research Network
18101 462 441 Reliance Infocom Ltd Internet
17676 500 436 Softbank BB Corp.
15270 472 435 PaeTec.net -a division of Pae
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65500 PRIVATE 64.141.136.0/24 26554 US Signal
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 /8:19 /9:10 /10:13 /11:29 /12:107
/13:214 /14:386 /15:775 /16:9016 /17:3498 /18:5715
/19:12491 /20:14096 /21:12426 /22:15820 /23:17221 /24:108038
/25:457 /26:434 /27:195 /28:67 /29:46 /30:97
/31:0 /32:37
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 951 968 Covad Communications
2386 891 1178 AT&T Data Communications Serv
7018 809 1534 AT&T WorldNet Services
6197 801 1022 BellSouth Network Solutions,
9583 782 954 Sify Limited
11492 743 755 Cable One
7011 590 683 Citizens Utilities
19916 559 565 OLM LLC
4766 546 736 Korea Telecom (KIX)
9498 522 862 BHARTI BT INTERNET LTD.
4755 442 1010 Videsh Sanchar Nigam Ltd. Aut
15270 441 472 PaeTec.net -a division of Pae
855 434 539 Canadian Research Network
5668 420 538 CenturyTel Internet Holdings,
17849 416 430 Telecommunications Technology
1239 415 842 Sprint
18101 395 462 Reliance Infocom Ltd Internet
22773 380 720 Cox Communications, Inc.
33588 370 391 Bresnan Communications, LLC.
17488 358 538 Hathway IP Over Cable Interne
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:7 6:1 8:55 12:1632 13:1 15:16
16:3 17:3 18:4 20:37 24:818 25:1
32:57 38:257 40:57 41:16 44:3 47:7
52:4 53:1 55:1 56:3 57:25 58:229
59:303 60:213 61:929 62:1119 63:1882 64:3137
65:2238 66:3054 67:651 68:649 69:1672 70:403
71:92 72:986 74:89 75:9 80:838 81:704
82:626 83:388 84:409 85:681 86:412 87:475
88:234 89:576 91:27 121:58 122:18 124:422
125:666 128:282 129:225 130:123 131:314 132:35
133:9 134:167 135:50 136:172 137:110 138:185
139:47 140:520 141:131 142:343 143:192 144:242
145:43 146:319 147:138 148:369 149:176 150:115
151:121 152:80 153:121 154:5 155:256 156:160
157:163 158:152 159:172 160:99 161:86 162:215
163:176 164:238 165:235 166:239 167:271 168:485
169:127 170:384 171:11 172:1 189:4 190:248
192:5745 193:3524 194:2739 195:2104 196:858 198:3876
199:3317 200:4550 201:921 202:6938 203:7122 204:3925
205:2121 206:2437 207:2995 208:2298 209:3510 210:2187
211:876 212:1336 213:1465 214:380 215:39 216:4072
217:1139 218:340 219:261 220:796 221:382 222:231
End of report
Report Website: http://thyme.apnic.net
