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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 26 Oct, 2006
Analysis Summary
----------------
BGP routing table entries examined: 201715
Prefixes after maximum aggregation: 109181
Unique aggregates announced to Internet: 97890
Total ASes present in the Internet Routing Table: 23446
Origin-only ASes present in the Internet Routing Table: 20420
Origin ASes announcing only one prefix: 9825
Transit ASes present in the Internet Routing Table: 3026
Transit-only ASes present in the Internet Routing Table: 76
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: 1
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: 1620311276
Equivalent to 96 /8s, 147 /16s and 252 /24s
Percentage of available address space announced: 43.7
Percentage of allocated address space announced: 60.5
Percentage of available address space allocated: 72.3
Total number of prefixes smaller than registry allocations: 101562
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 44114
Total APNIC prefixes after maximum aggregation: 17680
Prefixes being announced from the APNIC address blocks: 41711
Unique aggregates announced from the APNIC address blocks: 18477
APNIC Region origin ASes present in the Internet Routing Table: 2733
APNIC Region origin ASes announcing only one prefix: 763
APNIC Region transit ASes present in the Internet Routing Table: 409
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 264576608
Equivalent to 15 /8s, 197 /16s and 30 /24s
Percentage of available APNIC address space announced: 82.7
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: 101188
Total ARIN prefixes after maximum aggregation: 59657
Prefixes being announced from the ARIN address blocks: 74387
Unique aggregates announced from the ARIN address blocks: 28084
ARIN Region origin ASes present in the Internet Routing Table: 11081
ARIN Region origin ASes announcing only one prefix: 4220
ARIN Region transit ASes present in the Internet Routing Table: 1037
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 29
Number of ARIN addresses announced to Internet: 306230400
Equivalent to 18 /8s, 64 /16s and 180 /24s
Percentage of available ARIN address space announced: 67.6
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: 41079
Total RIPE prefixes after maximum aggregation: 27030
Prefixes being announced from the RIPE address blocks: 38038
Unique aggregates announced from the RIPE address blocks: 25353
RIPE Region origin ASes present in the Internet Routing Table: 8654
RIPE Region origin ASes announcing only one prefix: 4556
RIPE Region transit ASes present in the Internet Routing Table: 1393
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 269473284
Equivalent to 16 /8s, 15 /16s and 214 /24s
Percentage of available RIPE address space announced: 73.0
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: 12992
Total LACNIC prefixes after maximum aggregation: 3887
Prefixes being announced from the LACNIC address blocks: 10978
Unique aggregates announced from the LACNIC address blocks: 6698
LACNIC Region origin ASes present in the Internet Routing Table: 739
LACNIC Region origin ASes announcing only one prefix: 240
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: 27
Number of LACNIC addresses announced to Internet: 33619968
Equivalent to 2 /8s, 1 /16s and 0 /24s
Percentage of available LACNIC address space announced: 50.1
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: 2341
Total AfriNIC prefixes after maximum aggregation: 927
Prefixes being announced from the AfriNIC address blocks: 1599
Unique aggregates announced from the AfriNIC address blocks: 1071
AfriNIC Region origin ASes present in the Internet Routing Table: 163
AfriNIC Region origin ASes announcing only one prefix: 46
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: 4284416
Equivalent to 0 /8s, 65 /16s and 96 /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 1247 8352 240 CHINANET-BACKBONE
4755 1012 383 66 Videsh Sanchar Nigam Ltd. Aut
9583 942 109 15 Sify Limited
9498 862 212 64 BHARTI BT INTERNET LTD.
4766 739 4436 306 Korea Telecom (KIX)
1221 610 1780 469 Telstra Pty Ltd
7545 542 124 73 TPG Internet Pty Ltd
17488 541 34 15 Hathway IP Over Cable Interne
17676 500 10934 64 Softbank BB Corp.
18101 464 86 21 Reliance Infocom Ltd Internet
9443 454 111 74 Primus Telecommunications
4812 434 745 61 China Telecom (Shanghai)
17849 430 36 126 Telecommunications Technology
9942 429 77 125 COMindico Australia
4802 412 86 150 Wantree Development
17557 364 31 176 Pakistan Telecom
17974 364 129 12 PT TELEKOMUNIKASI INDONESIA
10139 362 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 1538 6210 994 AT&T WorldNet Services
2386 1181 618 752 AT&T Data Communications Serv
4323 1031 786 291 Time Warner Telecom
6197 1020 638 484 BellSouth Network Solutions,
18566 969 272 8 Covad Communications
721 965 21925 308 DLA Systems Automation Center
174 960 6823 885 Cogent Communications
701 953 6737 773 UUNET Technologies, Inc.
1239 845 2764 593 Sprint
11492 761 96 16 Cable One
19262 760 2426 177 Verizon Global Networks
20115 756 679 398 Charter Communications
22773 711 1744 46 Cox Communications, Inc.
209 706 3633 556 Qwest
7011 687 210 428 Citizens Utilities
852 592 1071 388 Telus Advanced Communications
19916 565 49 54 OLM LLC
855 539 250 74 Canadian Research Network
5668 539 145 18 CenturyTel Internet Holdings,
6478 536 1289 338 AT&T Worldnet Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 546 1928 425 UUNET - Commercial IP service
3301 314 1200 298 TeliaNet Sweden
3320 306 5016 247 Deutsche Telekom AG
24863 274 41 30 LINKdotNET AS number
8220 272 454 262 COLT Telecommunications
12715 264 40 29 Jazz Telecom S.A.
680 251 2041 247 DFN-IP service G-WiN
6746 245 91 223 Dynamic Network Technologies,
3246 226 468 216 Song Networks
8708 223 279 210 Romania Data Systems S.A.
9116 223 134 23 Goldenlines main autonomous s
3215 219 1952 92 France Telecom Transpac
8551 216 198 28 Bezeq International
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
5416 186 12 11 BATELCO-BH
3300 175 171 95 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 734 1906 219 UniNet S.A. de C.V.
11830 459 299 27 Instituto Costarricense de El
11172 433 101 88 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 206 93 33 Telecom Argentina Stet-France
6503 193 169 86 AVANTEL, S.A.
10481 181 72 8 Prima S.A.
21826 145 19 30 INTERCABLE
7910 136 10 18 ANDINET ON LINE
19429 136 84 40 E.T.B.
23216 135 19 43 RAMtelecom Telecomunicaciones
19169 133 8 28 Telconet
11556 132 96 4 Cable-Wireless Panama
18822 129 8 10 TELEFONICA MANQUEHUE
14522 117 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 295 804 234 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 56 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 29 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 21 17 2 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4134 1247 1007 CHINANET-BACKBONE
18566 969 961 Covad Communications
4755 1012 946 Videsh Sanchar Nigam Ltd. Aut
9583 942 927 Sify Limited
9498 862 798 BHARTI BT INTERNET LTD.
11492 761 745 Cable One
4323 1031 740 Time Warner Telecom
22773 711 665 Cox Communications, Inc.
721 965 657 DLA Systems Automation Center
19262 760 583 Verizon Global Networks
6197 1020 536 BellSouth Network Solutions,
17488 541 526 Hathway IP Over Cable Interne
5668 539 521 CenturyTel Internet Holdings,
8151 734 515 UniNet S.A. de C.V.
19916 565 511 OLM LLC
7545 542 469 TPG Internet Pty Ltd
855 539 465 Canadian Research Network
15270 481 446 PaeTec.net -a division of Pae
18101 464 443 Reliance Infocom Ltd Internet
17676 500 436 Softbank BB Corp.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
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
/13:215 /14:388 /15:775 /16:9041 /17:3511 /18:5749
/19:12537 /20:14103 /21:12483 /22:15856 /23:17257 /24:108177
/25:477 /26:450 /27:212 /28:68 /29:46 /30:150
/31:0 /32:42
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 952 969 Covad Communications
2386 893 1181 AT&T Data Communications Serv
7018 815 1538 AT&T WorldNet Services
6197 799 1020 BellSouth Network Solutions,
9583 771 942 Sify Limited
11492 747 761 Cable One
7011 594 687 Citizens Utilities
19916 559 565 OLM LLC
4766 549 739 Korea Telecom (KIX)
9498 522 862 BHARTI BT INTERNET LTD.
15270 450 481 PaeTec.net -a division of Pae
4755 443 1012 Videsh Sanchar Nigam Ltd. Aut
855 434 539 Canadian Research Network
1239 420 845 Sprint
5668 420 539 CenturyTel Internet Holdings,
17849 416 430 Telecommunications Technology
18101 397 464 Reliance Infocom Ltd Internet
22773 376 711 Cox Communications, Inc.
33588 370 391 Bresnan Communications, LLC.
17488 361 541 Hathway IP Over Cable Interne
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:7 6:1 8:55 12:1641 13:1 15:16
16:3 17:3 18:4 20:38 24:820 25:1
32:58 38:259 40:57 41:16 44:4 47:7
52:4 53:1 55:1 56:3 57:25 58:229
59:303 60:214 61:929 62:1131 63:1888 64:3142
65:2245 66:3051 67:654 68:651 69:1677 70:403
71:92 72:993 74:89 75:9 80:841 81:710
82:628 83:384 84:410 85:686 86:414 87:471
88:241 89:624 91:27 121:58 122:18 124:432
125:672 128:284 129:225 130:123 131:315 132:35
133:9 134:167 135:50 136:178 137:113 138:184
139:47 140:526 141:131 142:344 143:193 144:244
145:43 146:320 147:137 148:372 149:176 150:115
151:121 152:80 153:122 154:5 155:257 156:160
157:164 158:152 159:172 160:100 161:86 162:213
163:178 164:238 165:235 166:239 167:255 168:483
169:128 170:386 171:11 172:1 189:4 190:250
192:5743 193:3523 194:2738 195:2101 196:858 198:3879
199:3322 200:4555 201:920 202:6949 203:7102 204:3931
205:2112 206:2432 207:2985 208:2303 209:3512 210:2193
211:869 212:1345 213:1468 214:379 215:39 216:4065
217:1141 218:339 219:258 220:800 221:373 222:231
End of report
Report Website: http://thyme.apnic.net
