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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 19 Jan, 2007
Analysis Summary
----------------
BGP routing table entries examined: 207973
Prefixes after maximum aggregation: 112530
Deaggregation factor: 1.85
Unique aggregates announced to Internet: 101415
Total ASes present in the Internet Routing Table: 24161
Origin-only ASes present in the Internet Routing Table: 21039
Origin ASes announcing only one prefix: 10189
Transit ASes present in the Internet Routing Table: 3122
Transit-only ASes present in the Internet Routing Table: 78
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: 25
Number of addresses announced to Internet: 1660819660
Equivalent to 98 /8s, 254 /16s and 24 /24s
Percentage of available address space announced: 44.8
Percentage of allocated address space announced: 63.6
Percentage of available address space allocated: 70.5
Total number of prefixes smaller than registry allocations: 106169
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 46179
Total APNIC prefixes after maximum aggregation: 18738
APNIC Deaggregation factor: 2.46
Prefixes being announced from the APNIC address blocks: 43743
Unique aggregates announced from the APNIC address blocks: 19197
APNIC Region origin ASes present in the Internet Routing Table: 2828
APNIC Region origin ASes announcing only one prefix: 794
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: 276352608
Equivalent to 16 /8s, 120 /16s and 206 /24s
Percentage of available APNIC address space announced: 86.4
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: 102659
Total ARIN prefixes after maximum aggregation: 60670
ARIN Deaggregation factor: 1.69
Prefixes being announced from the ARIN address blocks: 75557
Unique aggregates announced from the ARIN address blocks: 28868
ARIN Region origin ASes present in the Internet Routing Table: 11275
ARIN Region origin ASes announcing only one prefix: 4316
ARIN Region transit ASes present in the Internet Routing Table: 1042
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 313750400
Equivalent to 18 /8s, 179 /16s and 115 /24s
Percentage of available ARIN address space announced: 69.3
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: 43053
Total RIPE prefixes after maximum aggregation: 28179
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 39770
Unique aggregates announced from the RIPE address blocks: 26546
RIPE Region origin ASes present in the Internet Routing Table: 9048
RIPE Region origin ASes announcing only one prefix: 4772
RIPE Region transit ASes present in the Internet Routing Table: 1464
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 32
Number of RIPE addresses announced to Internet: 286512804
Equivalent to 17 /8s, 19 /16s and 214 /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: 13564
Total LACNIC prefixes after maximum aggregation: 3989
LACNIC Deaggregation factor: 3.40
Prefixes being announced from the LACNIC address blocks: 11644
Unique aggregates announced from the LACNIC address blocks: 7194
LACNIC Region origin ASes present in the Internet Routing Table: 758
LACNIC Region origin ASes announcing only one prefix: 253
LACNIC Region transit ASes present in the Internet Routing Table: 134
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 36202240
Equivalent to 2 /8s, 40 /16s and 103 /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: 2516
Total AfriNIC prefixes after maximum aggregation: 953
AfriNIC Deaggregation factor: 2.64
Prefixes being announced from the AfriNIC address blocks: 1789
Unique aggregates announced from the AfriNIC address blocks: 1146
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: 33
Average AfriNIC Region AS path length visible: 3.6
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 5351424
Equivalent to 0 /8s, 81 /16s and 168 /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 1269 8655 268 CHINANET-BACKBONE
4755 1091 383 75 Videsh Sanchar Nigam Ltd. Aut
9583 1025 99 67 Sify Limited
9498 930 467 65 BHARTI BT INTERNET LTD.
23577 775 34 703 KRNIC
4766 759 4944 312 Korea Telecom (KIX)
17488 584 36 20 Hathway IP Over Cable Interne
1221 569 1697 440 Telstra Pty Ltd
7545 562 126 73 TPG Internet Pty Ltd
18101 511 103 27 Reliance Infocom Ltd Internet
17676 503 10935 66 Softbank BB Corp.
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 312 212 239 SingTel Optus Pty Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1546 6130 997 AT&T WorldNet Services
2386 1108 586 735 AT&T Data Communications Serv
4323 1064 820 298 Time Warner Telecom
6197 1022 645 500 BellSouth Network Solutions,
18566 987 272 8 Covad Communications
174 936 6789 867 Cogent Communications
701 936 6691 749 UUNET Technologies, Inc.
11492 910 99 14 Cable One
1239 826 2730 576 Sprint
19262 806 2570 184 Verizon Global Networks
20115 787 686 412 Charter Communications
7011 720 212 446 Citizens Utilities
209 716 3750 565 Qwest
22773 716 1744 42 Cox Communications, Inc.
721 708 21852 285 DLA Systems Automation Center
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
702 546 1912 425 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 272 474 262 COLT Telecommunications
6746 270 95 247 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 205 13 13 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 176 578 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 846 2014 200 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 212 170 92 AVANTEL, S.A.
11556 212 105 7 Cable-Wireless Panama
10481 181 72 8 Prima S.A.
21826 157 21 36 INTERCABLE
7910 149 10 33 ANDINET ON LINE
23216 147 19 43 RAMtelecom Telecomunicaciones
18822 145 9 10 TELEFONICA MANQUEHUE
19169 140 9 23 Telconet
19429 139 84 34 E.T.B.
14522 135 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 230 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 106 6 4 EEPAD TISP TELECOM & INTERNET
2905 85 176 74 The Internetworking Company o
24835 85 48 6 RAYA Telecom - Egypt
2561 60 6 2 Egyptian Universities Network
15706 55 12 4 Sudatel Internet Exchange Aut
23889 50 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
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
4755 1091 1016 Videsh Sanchar Nigam Ltd. Aut
4134 1269 1001 CHINANET-BACKBONE
18566 987 979 Covad Communications
9583 1025 958 Sify Limited
11492 910 896 Cable One
9498 930 865 BHARTI BT INTERNET LTD.
4323 1064 766 Time Warner Telecom
22773 716 674 Cox Communications, Inc.
8151 846 646 UniNet S.A. de C.V.
19262 806 622 Verizon Global Networks
17488 584 564 Hathway IP Over Cable Interne
5668 568 549 CenturyTel Internet Holdings,
6197 1022 522 BellSouth Network Solutions,
19916 568 514 OLM LLC
7545 562 489 TPG Internet Pty Ltd
855 558 485 Canadian Research Network
18101 511 484 Reliance Infocom Ltd Internet
15270 499 465 PaeTec.net -a division of Pae
11830 482 463 Instituto Costarricense de El
4766 759 447 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
180.190.0.0/16 24003 JUBILANT ORGANOSYS LTD., INDI
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 /14:412 /15:811 /16:9128 /17:3650 /18:5943
/19:12914 /20:14532 /21:12981 /22:16465 /23:17797 /24:111286
/25:607 /26:450 /27:351 /28:73 /29:42 /30:86
/31:0 /32:24
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 970 987 Covad Communications
11492 896 910 Cable One
9583 854 1025 Sify Limited
7018 846 1546 AT&T WorldNet Services
2386 830 1108 AT&T Data Communications Serv
6197 795 1022 BellSouth Network Solutions,
23577 761 775 KRNIC
7011 625 720 Citizens Utilities
9498 587 930 BHARTI BT INTERNET LTD.
4766 568 759 Korea Telecom (KIX)
19916 563 568 OLM LLC
4755 499 1091 Videsh Sanchar Nigam Ltd. Aut
15270 467 499 PaeTec.net -a division of Pae
855 456 558 Canadian Research Network
18101 444 511 Reliance Infocom Ltd Internet
5668 438 568 CenturyTel Internet Holdings,
1239 412 826 Sprint
17488 407 584 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 12:1659 13:1 15:15
16:3 17:3 18:5 20:36 24:868 25:1
32:55 38:276 40:57 41:58 44:2 47:10
52:4 55:1 56:3 57:25 58:293 59:376
60:199 61:947 62:1038 63:1901 64:3175 65:2308
66:3113 67:702 68:641 69:1720 70:413 71:132
72:1136 73:1 74:135 75:60 76:20 80:818
81:780 82:639 83:334 84:493 85:752 86:435
87:453 88:267 89:760 90:2 91:132 97:1
116:1 117:1 118:1 119:1 120:1 121:128
122:68 123:25 124:549 125:768 128:312 129:219
130:126 131:315 132:49 133:9 134:183 135:44
136:180 137:113 138:190 139:54 140:521 141:135
142:366 143:212 144:265 145:67 146:321 147:138
148:361 149:189 150:114 151:118 152:90 153:119
154:5 155:245 156:166 157:153 158:167 159:147
160:99 161:101 162:226 163:159 164:452 165:238
166:243 167:280 168:474 169:121 170:365 171:15
172:1 189:73 190:345 192:5735 193:3634 194:2911
195:2203 196:925 198:3778 199:3281 200:4602 201:956
202:7126 203:7282 204:3954 205:2093 206:2436 207:2892
208:2397 209:3564 210:2315 211:878 212:1304 213:1420
214:396 215:39 216:4100 217:1174 218:356 219:264
220:853 221:371 222:289
End of report
Report Website: http://thyme.apnic.net
