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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 18 Jan, 2007
Analysis Summary
----------------
BGP routing table entries examined: 207464
Prefixes after maximum aggregation: 112419
Deaggregation factor: 1.85
Unique aggregates announced to Internet: 101241
Total ASes present in the Internet Routing Table: 24144
Origin-only ASes present in the Internet Routing Table: 21032
Origin ASes announcing only one prefix: 10180
Transit ASes present in the Internet Routing Table: 3112
Transit-only ASes present in the Internet Routing Table: 77
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 32
Max AS path prepend of ASN (20858) 18
Prefixes from unregistered ASNs in the Routing Table: 3
Unregistered ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 24
Number of addresses announced to Internet: 1659655116
Equivalent to 98 /8s, 236 /16s and 83 /24s
Percentage of available address space announced: 44.8
Percentage of allocated address space announced: 63.5
Percentage of available address space allocated: 70.5
Total number of prefixes smaller than registry allocations: 105771
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 46127
Total APNIC prefixes after maximum aggregation: 18700
APNIC Deaggregation factor: 2.47
Prefixes being announced from the APNIC address blocks: 43695
Unique aggregates announced from the APNIC address blocks: 19119
APNIC Region origin ASes present in the Internet Routing Table: 2824
APNIC Region origin ASes announcing only one prefix: 793
APNIC Region transit ASes present in the Internet Routing Table: 422
Average APNIC Region AS path length visible: 3.7
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 275756384
Equivalent to 16 /8s, 111 /16s and 181 /24s
Percentage of available APNIC address space announced: 86.2
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: 102309
Total ARIN prefixes after maximum aggregation: 60624
ARIN Deaggregation factor: 1.69
Prefixes being announced from the ARIN address blocks: 75441
Unique aggregates announced from the ARIN address blocks: 28816
ARIN Region origin ASes present in the Internet Routing Table: 11272
ARIN Region origin ASes announcing only one prefix: 4315
ARIN Region transit ASes present in the Internet Routing Table: 1041
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 313613696
Equivalent to 18 /8s, 177 /16s and 93 /24s
Percentage of available ARIN address space announced: 69.2
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: 42970
Total RIPE prefixes after maximum aggregation: 28156
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 39683
Unique aggregates announced from the RIPE address blocks: 26546
RIPE Region origin ASes present in the Internet Routing Table: 9040
RIPE Region origin ASes announcing only one prefix: 4768
RIPE Region transit ASes present in the Internet Routing Table: 1454
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 32
Number of RIPE addresses announced to Internet: 286292644
Equivalent to 17 /8s, 16 /16s and 122 /24s
Percentage of available RIPE address space announced: 77.6
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: 13548
Total LACNIC prefixes after maximum aggregation: 3984
LACNIC Deaggregation factor: 3.40
Prefixes being announced from the LACNIC address blocks: 11633
Unique aggregates announced from the LACNIC address blocks: 7184
LACNIC Region origin ASes present in the Internet Routing Table: 757
LACNIC Region origin ASes announcing only one prefix: 250
LACNIC Region transit ASes present in the Internet Routing Table: 132
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 36193536
Equivalent to 2 /8s, 40 /16s and 69 /24s
Percentage of available LACNIC address space announced: 53.9
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: 2508
Total AfriNIC prefixes after maximum aggregation: 954
AfriNIC Deaggregation factor: 2.63
Prefixes being announced from the AfriNIC address blocks: 1775
Unique aggregates announced from the AfriNIC address blocks: 1137
AfriNIC Region origin ASes present in the Internet Routing Table: 173
AfriNIC Region origin ASes announcing only one prefix: 54
AfriNIC Region transit ASes present in the Internet Routing Table: 32
Average AfriNIC Region AS path length visible: 3.6
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 5335808
Equivalent to 0 /8s, 81 /16s and 107 /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 1268 8653 266 CHINANET-BACKBONE
4755 1054 383 75 Videsh Sanchar Nigam Ltd. Aut
9583 1025 99 66 Sify Limited
9498 927 467 65 BHARTI BT INTERNET LTD.
23577 774 34 702 KRNIC
4766 758 4946 312 Korea Telecom (KIX)
17488 583 36 23 Hathway IP Over Cable Interne
1221 571 1697 442 Telstra Pty Ltd
7545 561 126 74 TPG Internet Pty Ltd
17676 503 10935 66 Softbank BB Corp.
18101 502 103 27 Reliance Infocom Ltd Internet
9443 442 111 74 Primus Telecommunications
4812 436 759 69 China Telecom (Shanghai)
4802 360 86 150 Wantree Development
17974 357 129 14 PT TELEKOMUNIKASI INDONESIA
17557 353 35 171 Pakistan Telecom
17849 353 33 93 Telecommunications Technology
4837 333 4071 146 chinanet IDC center beijing n
2907 332 1749 309 SINET Japan
7474 310 212 238 SingTel Optus Pty Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1541 10224 992 AT&T WorldNet Services
2386 1105 585 732 AT&T Data Communications Serv
4323 1065 820 299 Time Warner Telecom
6197 1022 639 500 BellSouth Network Solutions,
18566 986 272 8 Covad Communications
174 935 6789 867 Cogent Communications
701 935 6675 748 UUNET Technologies, Inc.
11492 910 99 14 Cable One
1239 824 2729 575 Sprint
19262 805 2554 183 Verizon Global Networks
20115 787 686 412 Charter Communications
22773 716 1744 42 Cox Communications, Inc.
209 714 3750 563 Qwest
721 709 21852 285 DLA Systems Automation Center
7011 704 210 440 Citizens Utilities
852 609 1093 394 Telus Advanced Communications
5668 568 161 19 CenturyTel Internet Holdings,
19916 568 49 54 OLM LLC
855 558 250 73 Canadian Research Network
6198 550 519 256 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 543 1912 422 UUNET - Commercial IP service
3301 304 1199 288 TeliaNet Sweden
24863 298 45 25 LINKdotNET AS number
3320 297 4993 248 Deutsche Telekom AG
8220 271 474 262 COLT Telecommunications
6746 268 93 245 Dynamic Network Technologies,
680 256 2042 250 DFN-IP service G-WiN
8708 234 283 221 Romania Data Systems S.A.
3215 233 2136 96 France Telecom Transpac
1257 216 1069 172 SWIPnet Swedish IP Network
3269 211 2375 74 TELECOM ITALIA
30890 209 18 90 SC Kappa Invexim SRL
3246 207 354 197 Song Networks
5416 206 13 9 BATELCO-BH
8551 192 193 28 Bezeq International
20858 189 34 3 This AS will be used to conne
3300 177 171 89 AUCS Communications Services
3352 176 1767 31 Ibernet, Internet Access Netw
12479 175 578 6 Uni2 Autonomous System
786 171 1779 171 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 837 2014 198 UniNet S.A. de C.V.
11830 482 299 19 Instituto Costarricense de El
11172 388 106 78 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
22047 307 206 11 VTR PUNTO NET S.A.
14117 258 16 13 Telefonica del Sur S.A.
6471 256 74 31 ENTEL CHILE S.A.
7303 231 103 33 Telecom Argentina Stet-France
6147 224 182 20 Telefonica Del Peru
6503 217 170 92 AVANTEL, S.A.
11556 212 105 7 Cable-Wireless Panama
10481 181 72 8 Prima S.A.
21826 156 20 35 INTERCABLE
7910 148 10 34 ANDINET ON LINE
23216 147 19 43 RAMtelecom Telecomunicaciones
18822 145 9 10 TELEFONICA MANQUEHUE
19169 139 9 22 Telconet
19429 139 84 34 E.T.B.
14522 134 21 8 SatNet S.A.
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 290 868 232 The Internet Solution
8452 231 60 6 TEDATA
15475 154 84 4 Nile Online
6713 144 135 11 Itissalat Al-MAGHRIB
2018 138 309 113 Tertiary Education Network
5536 123 8 15 Internet Egypt Network
33783 108 6 4 EEPAD TISP TELECOM & INTERNET
24835 85 48 6 RAYA Telecom - Egypt
2905 84 175 73 The Internetworking Company o
2561 60 6 2 Egyptian Universities Network
15706 55 12 4 Sudatel Internet Exchange Aut
23889 49 13 18 MAURITIUS TELECOM
5713 41 294 34 Telkom SA Ltd
12455 38 6 3 Jambonet Autonomous system
33774 38 12 22 AS Number for Telecom Algeria
16637 33 21 25 Johnnic e-Ventures
33766 33 2 1 Nyala Communications Pty Ltd
8524 30 2 6 AUCEGYPT Autonomous System
33776 27 2 5 Starcomms Nigeria Limited
10798 23 1 14 Standard Bank of South Africa
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4134 1268 1002 CHINANET-BACKBONE
4755 1054 979 Videsh Sanchar Nigam Ltd. Aut
18566 986 978 Covad Communications
9583 1025 959 Sify Limited
11492 910 896 Cable One
9498 927 862 BHARTI BT INTERNET LTD.
4323 1065 766 Time Warner Telecom
22773 716 674 Cox Communications, Inc.
8151 837 639 UniNet S.A. de C.V.
19262 805 622 Verizon Global Networks
17488 583 560 Hathway IP Over Cable Interne
5668 568 549 CenturyTel Internet Holdings,
6197 1022 522 BellSouth Network Solutions,
19916 568 514 OLM LLC
7545 561 487 TPG Internet Pty Ltd
855 558 485 Canadian Research Network
18101 502 475 Reliance Infocom Ltd Internet
15270 498 464 PaeTec.net -a division of Pae
11830 482 463 Instituto Costarricense de El
4766 758 446 Korea Telecom (KIX)
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
23456 UNALLOCATED 203.10.62.0/24 1221 Telstra Pty Ltd
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
116.0.0.0/24 12654 RIPE NCC RIS Project
116.50.0.0/21 12654 RIPE NCC RIS Project
116.255.0.0/16 12654 RIPE NCC RIS Project
117.0.0.0/24 12654 RIPE NCC RIS Project
117.50.0.0/21 12654 RIPE NCC RIS Project
117.255.0.0/16 12654 RIPE NCC RIS Project
118.0.0.0/24 12654 RIPE NCC RIS Project
118.50.0.0/21 12654 RIPE NCC RIS Project
118.255.0.0/16 12654 RIPE NCC RIS Project
119.0.0.0/24 12654 RIPE NCC RIS Project
119.50.0.0/21 12654 RIPE NCC RIS Project
119.255.0.0/16 12654 RIPE NCC RIS Project
120.0.0.0/24 12654 RIPE NCC RIS Project
120.50.0.0/21 12654 RIPE NCC RIS Project
120.255.0.0/16 12654 RIPE NCC RIS Project
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 /11:32 /12:117
/13:230 /14:411 /15:808 /16:9118 /17:3646 /18:5937
/19:12913 /20:14517 /21:12953 /22:16525 /23:17778 /24:110805
/25:606 /26:451 /27:351 /28:70 /29:43 /30:87
/31:0 /32:24
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 969 986 Covad Communications
11492 896 910 Cable One
9583 854 1025 Sify Limited
7018 840 1541 AT&T WorldNet Services
2386 828 1105 AT&T Data Communications Serv
6197 795 1022 BellSouth Network Solutions,
23577 760 774 KRNIC
7011 609 704 Citizens Utilities
9498 585 927 BHARTI BT INTERNET LTD.
4766 566 758 Korea Telecom (KIX)
19916 563 568 OLM LLC
4755 488 1054 Videsh Sanchar Nigam Ltd. Aut
15270 466 498 PaeTec.net -a division of Pae
855 456 558 Canadian Research Network
5668 438 568 CenturyTel Internet Holdings,
18101 435 502 Reliance Infocom Ltd Internet
1239 411 824 Sprint
17488 406 583 Hathway IP Over Cable Interne
33588 400 422 Bresnan Communications, LLC.
6198 389 550 BellSouth Network Solutions,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:62 9:1 12:1657 13:1 15:15
16:3 17:3 18:5 20:36 24:868 25:1
32:55 38:275 40:57 41:58 44:2 47:10
52:4 55:1 56:3 57:25 58:292 59:369
60:198 61:954 62:1036 63:1902 64:3177 65:2298
66:3090 67:697 68:642 69:1718 70:411 71:131
72:1131 74:130 75:58 76:20 80:822 81:780
82:642 83:346 84:485 85:751 86:427 87:444
88:265 89:751 90:2 91:133 97:1 116:1
117:1 118:1 119:1 120:1 121:128 122:68
123:25 124:535 125:767 128:309 129:219 130:126
131:315 132:49 133:9 134:183 135:44 136:181
137:113 138:190 139:54 140:520 141:135 142:361
143:212 144:267 145:67 146:320 147:138 148:365
149:188 150:114 151:118 152:90 153:119 154:5
155:245 156:166 157:153 158:167 159:142 160:99
161:100 162:226 163:159 164:236 165:236 166:244
167:280 168:480 169:121 170:365 171:15 172:1
189:72 190:343 192:5731 193:3631 194:2910 195:2202
196:917 198:3779 199:3280 200:4611 201:952 202:7074
203:7268 204:3954 205:2092 206:2434 207:2892 208:2378
209:3559 210:2315 211:878 212:1286 213:1411 214:395
215:39 216:4092 217:1176 218:356 219:263 220:842
221:369 222:276
End of report
Report Website: http://thyme.apnic.net
