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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 19 Dec, 2006
Analysis Summary
----------------
BGP routing table entries examined: 206052
Prefixes after maximum aggregation: 111967
Unique aggregates announced to Internet: 100738
Total ASes present in the Internet Routing Table: 23956
Origin-only ASes present in the Internet Routing Table: 20890
Origin ASes announcing only one prefix: 10060
Transit ASes present in the Internet Routing Table: 3066
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: 1646772012
Equivalent to 98 /8s, 39 /16s and 191 /24s
Percentage of available address space announced: 44.4
Percentage of allocated address space announced: 63.0
Percentage of available address space allocated: 70.5
Total number of prefixes smaller than registry allocations: 104776
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 45665
Total APNIC prefixes after maximum aggregation: 18719
Prefixes being announced from the APNIC address blocks: 43215
Unique aggregates announced from the APNIC address blocks: 19456
APNIC Region origin ASes present in the Internet Routing Table: 2804
APNIC Region origin ASes announcing only one prefix: 790
APNIC Region transit ASes present in the Internet Routing Table: 420
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 272170720
Equivalent to 16 /8s, 56 /16s and 254 /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: 101874
Total ARIN prefixes after maximum aggregation: 60389
Prefixes being announced from the ARIN address blocks: 75065
Unique aggregates announced from the ARIN address blocks: 28596
ARIN Region origin ASes present in the Internet Routing Table: 11234
ARIN Region origin ASes announcing only one prefix: 4282
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: 310887040
Equivalent to 18 /8s, 135 /16s and 194 /24s
Percentage of available ARIN address space announced: 68.6
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: 42642
Total RIPE prefixes after maximum aggregation: 27918
Prefixes being announced from the RIPE address blocks: 39478
Unique aggregates announced from the RIPE address blocks: 26181
RIPE Region origin ASes present in the Internet Routing Table: 8921
RIPE Region origin ASes announcing only one prefix: 4690
RIPE Region transit ASes present in the Internet Routing Table: 1425
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 32
Number of RIPE addresses announced to Internet: 281546884
Equivalent to 16 /8s, 200 /16s and 16 /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: 13348
Total LACNIC prefixes after maximum aggregation: 3994
Prefixes being announced from the LACNIC address blocks: 11402
Unique aggregates announced from the LACNIC address blocks: 7012
LACNIC Region origin ASes present in the Internet Routing Table: 752
LACNIC Region origin ASes announcing only one prefix: 247
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: 35442432
Equivalent to 2 /8s, 28 /16s and 207 /24s
Percentage of available LACNIC address space announced: 52.8
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: 2522
Total AfriNIC prefixes after maximum aggregation: 947
Prefixes being announced from the AfriNIC address blocks: 1755
Unique aggregates announced from the AfriNIC address blocks: 1127
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: 4795904
Equivalent to 0 /8s, 73 /16s and 46 /24s
Percentage of available AfriNIC address space announced: 14.3
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 1032 97 148 Sify Limited
4755 932 383 65 Videsh Sanchar Nigam Ltd. Aut
9498 892 211 64 BHARTI BT INTERNET LTD.
23577 770 34 700 KRNIC
4766 738 4946 307 Korea Telecom (KIX)
1221 575 1698 444 Telstra Pty Ltd
17488 556 35 20 Hathway IP Over Cable Interne
7545 553 126 74 TPG Internet Pty Ltd
17676 503 10935 66 Softbank BB Corp.
18101 488 87 23 Reliance Infocom Ltd Internet
9443 442 111 74 Primus Telecommunications
4812 435 758 69 China Telecom (Shanghai)
9942 435 81 130 COMindico Australia
17849 411 36 126 Telecommunications Technology
4802 405 86 146 Wantree Development
17557 368 35 176 Pakistan Telecom
17974 363 129 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 1527 6172 989 AT&T WorldNet Services
2386 1108 586 734 AT&T Data Communications Serv
4323 1058 820 299 Time Warner Telecom
6197 1020 637 499 BellSouth Network Solutions,
18566 984 272 8 Covad Communications
174 961 6823 877 Cogent Communications
701 939 6691 762 UUNET Technologies, Inc.
11492 854 98 11 Cable One
1239 827 2730 578 Sprint
19262 788 2480 182 Verizon Global Networks
721 781 21885 292 DLA Systems Automation Center
20115 766 666 405 Charter Communications
209 713 3763 563 Qwest
22773 707 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 550 535 257 BellSouth Network Solutions,
5668 546 161 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 4992 244 Deutsche Telekom AG
24863 293 44 26 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
3215 230 2104 96 France Telecom Transpac
9116 230 132 23 Goldenlines main autonomous s
8708 228 281 215 Romania Data Systems S.A.
1257 218 1069 171 SWIPnet Swedish IP Network
3269 208 2357 75 TELECOM ITALIA
5416 205 13 9 BATELCO-BH
30890 203 18 89 SC Kappa Invexim SRL
3246 202 353 192 Song Networks
8551 199 197 24 Bezeq International
3300 179 171 97 AUCS Communications Services
6830 179 695 38 UPC Distribution 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 285 868 231 The Internet Solution
8452 225 60 7 TEDATA
15475 148 84 4 Nile Online
6713 144 135 11 Itissalat Al-MAGHRIB
2018 133 297 111 Tertiary Education Network
5536 123 8 15 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 57 6 2 Egyptian Universities Network
15706 55 12 4 Sudatel Internet Exchange Aut
23889 50 13 18 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
3208 24 2 1 ARN Network
10798 23 1 14 Standard Bank of South Africa
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4134 1245 992 CHINANET-BACKBONE
18566 984 976 Covad Communications
9583 1032 884 Sify Limited
4755 932 867 Videsh Sanchar Nigam Ltd. Aut
11492 854 843 Cable One
9498 892 828 BHARTI BT INTERNET LTD.
4323 1058 759 Time Warner Telecom
22773 707 667 Cox Communications, Inc.
19262 788 606 Verizon Global Networks
8151 775 569 UniNet S.A. de C.V.
17488 556 536 Hathway IP Over Cable Interne
5668 546 527 CenturyTel Internet Holdings,
6197 1020 521 BellSouth Network Solutions,
19916 567 510 OLM LLC
721 781 489 DLA Systems Automation Center
7545 553 479 TPG Internet Pty Ltd
855 538 465 Canadian Research Network
18101 488 465 Reliance Infocom Ltd Internet
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
/13:227 /14:404 /15:799 /16:9091 /17:3626 /18:5870
/19:12770 /20:14428 /21:12839 /22:16323 /23:17876 /24:109962
/25:618 /26:453 /27:355 /28:72 /29:44 /30:87
/31:0 /32:23
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 967 984 Covad Communications
9583 864 1032 Sify Limited
11492 840 854 Cable One
2386 825 1108 AT&T Data Communications Serv
7018 815 1527 AT&T WorldNet Services
6197 796 1020 BellSouth Network Solutions,
23577 756 770 KRNIC
7011 600 695 Citizens Utilities
19916 562 567 OLM LLC
9498 555 892 BHARTI BT INTERNET LTD.
4766 549 738 Korea Telecom (KIX)
15270 464 494 PaeTec.net -a division of Pae
855 435 538 Canadian Research Network
18101 422 488 Reliance Infocom Ltd Internet
5668 420 546 CenturyTel Internet Holdings,
1239 409 827 Sprint
17849 397 411 Telecommunications Technology
4755 393 932 Videsh Sanchar Nigam Ltd. Aut
33588 392 415 Bresnan Communications, LLC.
6198 388 550 BellSouth Network Solutions,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:61 9:1 12:1650 13:1 15:15
16:3 17:3 18:5 20:34 24:845 25:1
32:55 38:272 40:57 41:48 44:2 47:9
52:4 53:1 55:1 56:3 57:25 58:269
59:323 60:223 61:968 62:1052 63:1895 64:3179
65:2290 66:3135 67:684 68:655 69:1711 70:403
71:114 72:1087 74:117 75:48 76:13 80:820
81:785 82:655 83:396 84:453 85:759 86:409
87:440 88:252 89:676 90:2 91:99 97:1
121:98 122:44 123:3 124:492 125:727 128:302
129:219 130:132 131:317 132:48 133:9 134:177
135:42 136:180 137:113 138:189 139:50 140:529
141:135 142:347 143:212 144:255 145:67 146:318
147:141 148:370 149:170 150:110 151:118 152:88
153:117 154:5 155:247 156:148 157:151 158:166
159:141 160:99 161:88 162:225 163:159 164:238
165:236 166:243 167:281 168:481 169:123 170:386
171:12 172:1 189:29 190:301 192:5738 193:3630
194:2861 195:2166 196:921 198:3774 199:3281 200:4571
201:945 202:7013 203:7204 204:3952 205:2094 206:2420
207:2903 208:2361 209:3583 210:2229 211:872 212:1344
213:1475 214:382 215:39 216:4091 217:1162 218:339
219:262 220:813 221:386 222:254
End of report
Report Website: http://thyme.apnic.net
