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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 20 Dec, 2006
Analysis Summary
----------------
BGP routing table entries examined: 206287
Prefixes after maximum aggregation: 112040
Unique aggregates announced to Internet: 100820
Total ASes present in the Internet Routing Table: 23964
Origin-only ASes present in the Internet Routing Table: 20892
Origin ASes announcing only one prefix: 10066
Transit ASes present in the Internet Routing Table: 3072
Transit-only ASes present in the Internet Routing Table: 75
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 32
Max AS path prepend of ASN (36728) 27
Prefixes from unregistered ASNs in the Routing Table: 1
Unregistered ASNs in the Routing Table: 2
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 9
Number of addresses announced to Internet: 1647354668
Equivalent to 98 /8s, 48 /16s and 163 /24s
Percentage of available address space announced: 44.4
Percentage of allocated address space announced: 63.1
Percentage of available address space allocated: 70.5
Total number of prefixes smaller than registry allocations: 104949
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 45786
Total APNIC prefixes after maximum aggregation: 18707
Prefixes being announced from the APNIC address blocks: 43337
Unique aggregates announced from the APNIC address blocks: 19449
APNIC Region origin ASes present in the Internet Routing Table: 2803
APNIC Region origin ASes announcing only one prefix: 793
APNIC Region transit ASes present in the Internet Routing Table: 421
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 272182496
Equivalent to 16 /8s, 57 /16s and 44 /24s
Percentage of available APNIC address space announced: 85.1
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: 101945
Total ARIN prefixes after maximum aggregation: 60465
Prefixes being announced from the ARIN address blocks: 75145
Unique aggregates announced from the ARIN address blocks: 28646
ARIN Region origin ASes present in the Internet Routing Table: 11236
ARIN Region origin ASes announcing only one prefix: 4276
ARIN Region transit ASes present in the Internet Routing Table: 1026
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 29
Number of ARIN addresses announced to Internet: 310990976
Equivalent to 18 /8s, 137 /16s and 88 /24s
Percentage of available ARIN address space announced: 68.7
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: 42672
Total RIPE prefixes after maximum aggregation: 27935
Prefixes being announced from the RIPE address blocks: 39489
Unique aggregates announced from the RIPE address blocks: 26212
RIPE Region origin ASes present in the Internet Routing Table: 8927
RIPE Region origin ASes announcing only one prefix: 4697
RIPE Region transit ASes present in the Internet Routing Table: 1430
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 32
Number of RIPE addresses announced to Internet: 281629572
Equivalent to 16 /8s, 201 /16s and 83 /24s
Percentage of available RIPE address space announced: 76.3
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
40960-43007
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: 13363
Total LACNIC prefixes after maximum aggregation: 3992
Prefixes being announced from the LACNIC address blocks: 11428
Unique aggregates announced from the LACNIC address blocks: 7011
LACNIC Region origin ASes present in the Internet Routing Table: 753
LACNIC Region origin ASes announcing only one prefix: 249
LACNIC Region transit ASes present in the Internet Routing Table: 133
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 35396864
Equivalent to 2 /8s, 28 /16s and 29 /24s
Percentage of available LACNIC address space announced: 52.7
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: 2520
Total AfriNIC prefixes after maximum aggregation: 941
Prefixes being announced from the AfriNIC address blocks: 1768
Unique aggregates announced from the AfriNIC address blocks: 1126
AfriNIC Region origin ASes present in the Internet Routing Table: 170
AfriNIC Region origin ASes announcing only one prefix: 51
AfriNIC Region transit ASes present in the Internet Routing Table: 30
Average AfriNIC Region AS path length visible: 3.5
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 5323264
Equivalent to 0 /8s, 81 /16s and 58 /24s
Percentage of available AfriNIC address space announced: 15.9
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 1245 8595 253 CHINANET-BACKBONE
9583 1033 97 148 Sify Limited
4755 1006 383 65 Videsh Sanchar Nigam Ltd. Aut
9498 892 211 64 BHARTI BT INTERNET LTD.
23577 772 34 701 KRNIC
4766 747 4946 307 Korea Telecom (KIX)
1221 574 1698 444 Telstra Pty Ltd
17488 558 35 21 Hathway IP Over Cable Interne
7545 552 126 73 TPG Internet Pty Ltd
17676 503 10935 66 Softbank BB Corp.
18101 490 87 23 Reliance Infocom Ltd Internet
9443 442 111 74 Primus Telecommunications
4812 436 758 69 China Telecom (Shanghai)
9942 433 81 130 COMindico Australia
17849 411 36 126 Telecommunications Technology
4802 405 86 146 Wantree Development
17557 364 35 178 Pakistan Telecom
17974 359 129 12 PT TELEKOMUNIKASI INDONESIA
2907 332 1749 309 SINET Japan
4837 329 3847 145 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1537 6173 997 AT&T WorldNet Services
2386 1109 586 735 AT&T Data Communications Serv
4323 1057 820 299 Time Warner Telecom
6197 1020 637 499 BellSouth Network Solutions,
18566 985 272 8 Covad Communications
174 963 6823 879 Cogent Communications
701 938 6691 761 UUNET Technologies, Inc.
11492 856 98 13 Cable One
1239 827 2730 578 Sprint
19262 790 2496 182 Verizon Global Networks
721 780 21885 292 DLA Systems Automation Center
20115 766 666 405 Charter Communications
209 713 3763 563 Qwest
22773 708 1744 40 Cox Communications, Inc.
7011 695 211 431 Citizens Utilities
852 603 1092 391 Telus Advanced Communications
19916 567 48 57 OLM LLC
6198 549 535 257 BellSouth Network Solutions,
5668 545 161 19 CenturyTel Internet Holdings,
855 538 250 73 Canadian Research Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 546 1912 425 UUNET - Commercial IP service
3301 310 1199 292 TeliaNet Sweden
3320 296 4993 244 Deutsche Telekom AG
24863 293 44 31 LINKdotNET AS number
8220 273 474 263 COLT Telecommunications
6746 263 93 241 Dynamic Network Technologies,
680 252 2041 248 DFN-IP service G-WiN
9116 235 134 23 Goldenlines main autonomous s
3215 230 2104 96 France Telecom Transpac
8708 229 281 216 Romania Data Systems S.A.
1257 219 1069 172 SWIPnet Swedish IP Network
3269 210 2373 73 TELECOM ITALIA
5416 205 13 9 BATELCO-BH
30890 204 18 90 SC Kappa Invexim SRL
3246 202 353 192 Song Networks
8551 199 197 24 Bezeq International
6830 180 695 38 UPC Distribution Services
3300 179 171 97 AUCS Communications Services
3352 174 1751 30 Ibernet, Internet Access Netw
12479 173 578 6 Uni2 Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 775 1937 206 UniNet S.A. de C.V.
11830 484 299 19 Instituto Costarricense de El
11172 385 104 74 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
22047 307 206 11 VTR PUNTO NET S.A.
6471 258 74 31 ENTEL CHILE S.A.
14117 258 16 13 Telefonica del Sur S.A.
7303 227 102 35 Telecom Argentina Stet-France
6503 217 170 94 AVANTEL, S.A.
6147 209 150 20 Telefonica Del Peru
11556 204 101 6 Cable-Wireless Panama
10481 181 72 8 Prima S.A.
21826 156 20 35 INTERCABLE
23216 146 19 43 RAMtelecom Telecomunicaciones
7910 144 10 31 ANDINET ON LINE
19169 139 9 22 Telconet
19429 138 84 34 E.T.B.
14522 129 20 9 SatNet S.A.
18822 129 8 10 TELEFONICA MANQUEHUE
7738 116 442 21 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 289 868 231 The Internet Solution
8452 224 60 7 TEDATA
15475 148 84 4 Nile Online
6713 144 135 11 Itissalat Al-MAGHRIB
2018 136 297 111 Tertiary Education Network
5536 124 8 11 Internet Egypt Network
24835 116 48 6 RAYA Telecom - Egypt
33783 109 6 4 EEPAD TISP TELECOM & INTERNET
2905 84 175 73 The Internetworking Company o
2561 60 6 2 Egyptian Universities Network
15706 55 12 4 Sudatel Internet Exchange Aut
23889 52 13 15 MAURITIUS TELECOM
5713 41 294 34 Telkom SA Ltd
12455 39 6 3 Jambonet Autonomous system
33774 38 12 22 AS Number for Telecom Algeria
16637 33 21 25 Johnnic e-Ventures
8524 30 2 6 AUCEGYPT Autonomous System
15804 27 2 1 AS of The Way Out Internet So
10798 23 1 14 Standard Bank of South Africa
21280 23 4 4 Swift Global Kenya Ltd.Is an
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4134 1245 992 CHINANET-BACKBONE
18566 985 977 Covad Communications
4755 1006 941 Videsh Sanchar Nigam Ltd. Aut
9583 1033 885 Sify Limited
11492 856 843 Cable One
9498 892 828 BHARTI BT INTERNET LTD.
4323 1057 758 Time Warner Telecom
22773 708 668 Cox Communications, Inc.
19262 790 608 Verizon Global Networks
8151 775 569 UniNet S.A. de C.V.
17488 558 537 Hathway IP Over Cable Interne
5668 545 526 CenturyTel Internet Holdings,
6197 1020 521 BellSouth Network Solutions,
19916 567 510 OLM LLC
721 780 488 DLA Systems Automation Center
7545 552 479 TPG Internet Pty Ltd
18101 490 467 Reliance Infocom Ltd Internet
855 538 465 Canadian Research Network
11830 484 465 Instituto Costarricense de El
15270 494 460 PaeTec.net -a division of Pae
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
192.0.10.0/24 9498 BHARTI BT INTERNET LTD.
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
192.172.0.0/19 721 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 /8:19 /9:10 /10:13 /11:30 /12:113
/13:228 /14:404 /15:799 /16:9088 /17:3630 /18:5872
/19:12766 /20:14430 /21:12863 /22:16360 /23:17895 /24:110100
/25:628 /26:457 /27:357 /28:72 /29:44 /30:86
/31:0 /32:23
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 968 985 Covad Communications
9583 865 1033 Sify Limited
11492 842 856 Cable One
2386 826 1109 AT&T Data Communications Serv
7018 826 1537 AT&T WorldNet Services
6197 796 1020 BellSouth Network Solutions,
23577 758 772 KRNIC
7011 600 695 Citizens Utilities
19916 562 567 OLM LLC
4766 556 747 Korea Telecom (KIX)
9498 555 892 BHARTI BT INTERNET LTD.
15270 464 494 PaeTec.net -a division of Pae
4755 463 1006 Videsh Sanchar Nigam Ltd. Aut
855 435 538 Canadian Research Network
18101 424 490 Reliance Infocom Ltd Internet
5668 420 545 CenturyTel Internet Holdings,
1239 409 827 Sprint
17849 397 411 Telecommunications Technology
33588 392 415 Bresnan Communications, LLC.
6198 387 549 BellSouth Network Solutions,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:61 9:1 12:1653 13:1 15:15
16:3 17:3 18:5 20:34 24:846 25:1
32:55 38:272 40:57 41:50 44:2 47:10
52:4 53:1 55:1 56:3 57:25 58:272
59:345 60:217 61:978 62:1055 63:1895 64:3191
65:2290 66:3127 67:685 68:655 69:1710 70:403
71:114 72:1088 74:119 75:49 76:13 80:822
81:789 82:653 83:391 84:451 85:762 86:409
87:443 88:251 89:684 90:2 91:100 97:1
121:110 122:44 123:3 124:492 125:729 128:303
129:219 130:132 131:317 132:46 133:9 134:175
135:42 136:180 137:114 138:189 139:51 140:527
141:134 142:347 143:210 144:255 145:67 146:321
147:141 148:369 149:171 150:110 151:118 152:88
153:117 154:5 155:247 156:148 157:151 158:166
159:141 160:99 161:88 162:224 163:160 164:238
165:235 166:241 167:282 168:481 169:123 170:387
171:12 172:1 189:29 190:303 192:5738 193:3623
194:2863 195:2168 196:928 198:3776 199:3282 200:4593
201:946 202:7035 203:7208 204:3958 205:2085 206:2427
207:2906 208:2367 209:3585 210:2233 211:876 212:1341
213:1469 214:375 215:39 216:4097 217:1158 218:340
219:263 220:814 221:385 222:255
End of report
Report Website: http://thyme.apnic.net
