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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 25 Jan, 2008
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 243243
Prefixes after maximum aggregation: 124511
Deaggregation factor: 1.95
Unique aggregates announced to Internet: 118993
Total ASes present in the Internet Routing Table: 27175
Prefixes per ASN: 8.95
Origin-only ASes present in the Internet Routing Table: 23691
Origin ASes announcing only one prefix: 11509
Transit ASes present in the Internet Routing Table: 3484
Transit-only ASes present in the Internet Routing Table: 70
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 18
Max AS path prepend of ASN (29642) 15
Prefixes from unregistered ASNs in the Routing Table: 22
Unregistered ASNs in the Routing Table: 12
Prefixes from 32-bit ASNs in the Routing Table: 9
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1821578208
Equivalent to 108 /8s, 147 /16s and 19 /24s
Percentage of available address space announced: 49.1
Percentage of allocated address space announced: 62.9
Percentage of available address space allocated: 78.2
Total number of prefixes smaller than registry allocations: 114666
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 55542
Total APNIC prefixes after maximum aggregation: 21063
APNIC Deaggregation factor: 2.64
Prefixes being announced from the APNIC address blocks: 53063
Unique aggregates announced from the APNIC address blocks: 23851
APNIC Region origin ASes present in the Internet Routing Table: 3108
APNIC Prefixes per ASN: 17.07
APNIC Region origin ASes announcing only one prefix: 812
APNIC Region transit ASes present in the Internet Routing Table: 463
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 326479264
Equivalent to 19 /8s, 117 /16s and 173 /24s
Percentage of available APNIC address space announced: 74.7
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, 114/7, 116/6, 120/6, 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: 114899
Total ARIN prefixes after maximum aggregation: 65333
ARIN Deaggregation factor: 1.76
Prefixes being announced from the ARIN address blocks: 83813
Unique aggregates announced from the ARIN address blocks: 33351
ARIN Region origin ASes present in the Internet Routing Table: 12096
ARIN Prefixes per ASN: 6.93
ARIN Region origin ASes announcing only one prefix: 4666
ARIN Region transit ASes present in the Internet Routing Table: 1145
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 15
Number of ARIN addresses announced to Internet: 358073472
Equivalent to 21 /8s, 87 /16s and 196 /24s
Percentage of available ARIN address space announced: 79.0
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: 51049
Total RIPE prefixes after maximum aggregation: 32370
RIPE Deaggregation factor: 1.58
Prefixes being announced from the RIPE address blocks: 48340
Unique aggregates announced from the RIPE address blocks: 32106
RIPE Region origin ASes present in the Internet Routing Table: 10788
RIPE Prefixes per ASN: 4.48
RIPE Region origin ASes announcing only one prefix: 5675
RIPE Region transit ASes present in the Internet Routing Table: 1649
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 340790016
Equivalent to 20 /8s, 80 /16s and 11 /24s
Percentage of available RIPE address space announced: 78.1
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
40960-45055
RIPE Address Blocks 62/8, 77/8, 78/7, 80/4, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 18359
Total LACNIC prefixes after maximum aggregation: 4628
LACNIC Deaggregation factor: 3.97
Prefixes being announced from the LACNIC address blocks: 16567
Unique aggregates announced from the LACNIC address blocks: 9060
LACNIC Region origin ASes present in the Internet Routing Table: 895
LACNIC Prefixes per ASN: 18.51
LACNIC Region origin ASes announcing only one prefix: 289
LACNIC Region transit ASes present in the Internet Routing Table: 150
Average LACNIC Region AS path length visible: 3.9
Max LACNIC Region AS path length visible: 17
Number of LACNIC addresses announced to Internet: 47333120
Equivalent to 2 /8s, 210 /16s and 63 /24s
Percentage of available LACNIC address space announced: 47.0
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 186/7, 189/8, 190/8, 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 3379
Total AfriNIC prefixes after maximum aggregation: 1099
AfriNIC Deaggregation factor: 3.07
Prefixes being announced from the AfriNIC address blocks: 2548
Unique aggregates announced from the AfriNIC address blocks: 1447
AfriNIC Region origin ASes present in the Internet Routing Table: 217
AfriNIC Prefixes per ASN: 11.74
AfriNIC Region origin ASes announcing only one prefix: 67
AfriNIC Region transit ASes present in the Internet Routing Table: 39
Average AfriNIC Region AS path length visible: 3.6
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 8219392
Equivalent to 0 /8s, 125 /16s and 107 /24s
Percentage of available AfriNIC address space announced: 24.5
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
4755 1550 384 75 Videsh Sanchar Nigam Ltd. Aut
9583 1123 83 440 Sify Limited
9498 1106 549 61 BHARTI BT INTERNET LTD.
17488 961 62 87 Hathway IP Over Cable Interne
4134 860 11760 308 CHINANET-BACKBONE
4766 841 5494 340 Korea Telecom (KIX)
23577 816 34 695 Korea Telecom (ATM-MPLS)
18101 609 128 65 Reliance Infocom Ltd Internet
9829 592 449 11 BSNL National Internet Backbo
1221 545 1952 420 Telstra Pty Ltd
4668 523 68 10 LG-EDS Systems Inc.
4808 520 821 125 CNCGROUP IP network: China169
17676 506 10919 64 Softbank BB Corp.
7545 491 147 93 TPG Internet Pty Ltd
4812 475 935 77 China Telecom (Shanghai)
4802 470 128 151 Wantree Development
9443 437 121 71 Primus Telecommunications
17974 399 145 17 PT TELEKOMUNIKASI INDONESIA
7474 385 202 271 SingTel Optus Pty Ltd
4837 366 5180 181 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1459 6073 990 AT&T WorldNet Services
4323 1381 1011 364 Time Warner Telecom
2386 1360 636 835 AT&T Data Communications Serv
11492 1210 135 17 Cable One
6478 1101 331 121 AT&T Worldnet Services
18566 1041 296 10 Covad Communications
7011 1031 301 593 Citizens Utilities
6197 971 713 503 BellSouth Network Solutions,
174 970 6834 812 Cogent Communications
701 899 6559 689 UUNET Technologies, Inc.
19262 876 3225 148 Verizon Global Networks
20115 865 796 471 Charter Communications
22773 844 2139 58 Cox Communications, Inc.
3356 842 10910 414 Level 3 Communications, LLC
1239 792 2672 551 Sprint
209 745 3910 597 Qwest
5668 668 177 21 CenturyTel Internet Holdings,
15270 634 193 55 PaeTec.net -a division of Pae
6517 618 150 41 Yipes Communications, Inc.
6140 606 110 155 ImpSat
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3292 394 1650 359 TDC Tele Danmark
3301 329 1458 300 TeliaNet Sweden
3320 319 6019 265 Deutsche Telekom AG
8452 295 188 7 TEDATA
8866 281 78 24 Bulgarian Telecommunication C
8551 279 267 42 Bezeq International
8708 273 420 241 Romania Data Systems S.A.
680 271 2046 256 DFN-IP service G-WiN
3215 270 2583 92 France Telecom Transpac
6746 270 128 248 Dynamic Network Technologies,
8220 253 422 227 COLT Telecommunications
3352 241 1948 40 Ibernet, Internet Access Netw
3269 233 3085 70 TELECOM ITALIA
5462 229 666 27 Telewest Broadband
9155 213 45 10 QualityNet AS number
3300 211 172 100 AUCS Communications Services
9121 208 1444 25 TTnet Autonomous System
1257 199 1196 182 SWIPnet Swedish IP Network
29357 199 17 4 WATANIYA TELECOM
2856 195 2307 162 BTnet UK Regional network
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1149 2390 218 UniNet S.A. de C.V.
11830 547 299 9 Instituto Costarricense de El
16814 427 27 10 NSS, S.A.
7303 426 207 54 Telecom Argentina Stet-France
11172 396 115 62 Servicios Alestra S.A de C.V
6471 394 85 39 ENTEL CHILE S.A.
10620 351 92 25 TVCABLE BOGOTA
14117 351 23 16 Telefonica del Sur S.A.
22047 322 254 13 VTR PUNTO NET S.A.
10481 301 120 10 Prima S.A.
6147 256 214 21 Telefonica Del Peru
7738 244 602 25 Telecomunicacoes da Bahia S.A
11556 238 128 5 Cable-Wireless Panama
23216 232 17 49 RAMtelecom Telecomunicaciones
28573 230 322 24 NET Servicos de Comunicao S.A
20299 228 33 30 NEWCOM AMERICAS
6503 220 180 85 AVANTEL, S.A.
10834 194 76 41 ADVANCE TELECOMUNICACIONES S.
19169 191 12 20 Telconet
21826 187 33 48 INTERCABLE
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 408 60 30 LINKdotNET AS number
3741 279 869 225 The Internet Solution
20858 202 34 3 EgyNet
6713 145 135 11 Itissalat Al-MAGHRIB
2018 142 268 114 Tertiary Education Network
33783 129 9 15 EEPAD TISP TELECOM & INTERNET
5536 124 8 10 Internet Egypt Network
33776 99 6 7 Starcomms Nigeria Limited
15475 93 84 4 Nile Online
24835 88 48 6 RAYA Telecom - Egypt
23889 78 24 16 MAURITIUS TELECOM
29571 77 13 7 Ci Telecom Autonomous system
2905 76 174 73 The Internetworking Company o
20484 71 5 4 Yalla Online Autonomous Syste
15706 58 12 4 Sudatel Internet Exchange Aut
5713 51 455 41 Telkom SA Ltd
33774 51 37 28 AS Number for Telecom Algeria
16637 47 21 28 Johnnic e-Ventures
8524 33 2 8 AUCEGYPT Autonomous System
21152 32 2 1 AS for the uplinks of Soficom
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
11492 1210 1193 Cable One
9498 1106 1045 BHARTI BT INTERNET LTD.
18566 1041 1031 Covad Communications
4323 1381 1017 Time Warner Telecom
6478 1101 980 AT&T Worldnet Services
8151 1149 931 UniNet S.A. de C.V.
17488 961 874 Hathway IP Over Cable Interne
22773 844 786 Cox Communications, Inc.
19262 876 728 Verizon Global Networks
9583 1123 683 Sify Limited
5668 668 647 CenturyTel Internet Holdings,
9829 592 581 BSNL National Internet Backbo
15270 634 579 PaeTec.net -a division of Pae
6517 618 577 Yipes Communications, Inc.
4134 860 552 CHINANET-BACKBONE
18101 609 544 Reliance Infocom Ltd Internet
11830 547 538 Instituto Costarricense de El
2386 1360 525 AT&T Data Communications Serv
19916 563 521 OLM LLC
4668 523 513 LG-EDS Systems Inc.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
15190 UNALLOCATED 63.98.176.0/24 701 UUNET Technologies,
18506 UNALLOCATED 63.107.123.0/24 33286 Turlock Irrigation D
14699 UNALLOCATED 63.238.252.0/24 30517 Great Lakes Comnet,
14699 UNALLOCATED 63.238.253.0/24 30517 Great Lakes Comnet,
14699 UNALLOCATED 64.85.144.0/22 30517 Great Lakes Comnet,
33526 UNALLOCATED 64.128.26.0/24 4323 Time Warner Telecom
14699 UNALLOCATED 65.112.79.0/24 30517 Great Lakes Comnet,
21624 UNALLOCATED 65.163.176.0/24 701 UUNET Technologies,
14699 UNALLOCATED 72.35.42.0/24 30517 Great Lakes Comnet,
14699 UNALLOCATED 72.35.43.0/24 30517 Great Lakes Comnet,
14699 UNALLOCATED 72.35.44.0/22 30517 Great Lakes Comnet,
14699 UNALLOCATED 72.35.60.0/24 30517 Great Lakes Comnet,
65364 PRIVATE 190.144.163.0/24 14080 FIRSTCOM COLOMBIA
65389 PRIVATE 190.144.166.0/24 14080 FIRSTCOM COLOMBIA
65394 PRIVATE 190.144.167.0/24 14080 FIRSTCOM COLOMBIA
65403 PRIVATE 190.144.168.0/24 14080 FIRSTCOM COLOMBIA
65375 PRIVATE 190.144.175.0/24 14080 FIRSTCOM COLOMBIA
14699 UNALLOCATED 208.25.96.0/24 30517 Great Lakes Comnet,
14699 UNALLOCATED 208.25.97.0/24 30517 Great Lakes Comnet,
21624 UNALLOCATED 208.246.136.0/24 701 UUNET Technologies,
21624 UNALLOCATED 208.248.233.0/24 701 UUNET Technologies,
14699 UNALLOCATED 209.165.242.0/23 30517 Great Lakes Comnet,
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
31.31.31.0/24 9730 The Best ISP to go Multimedia
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
173.173.173.0/24 9730 The Best ISP to go Multimedia
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
192.153.136.0/21 721 DLA Systems Automation Center
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 /9:9 /10:15 /11:40 /12:137
/13:275 /14:489 /15:974 /16:9747 /17:4219 /18:6943
/19:14910 /20:17083 /21:16235 /22:20434 /23:21449 /24:127619
/25:875 /26:1095 /27:555 /28:103 /29:9 /30:1
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1200 1210 Cable One
6478 1100 1101 AT&T Worldnet Services
2386 1059 1360 AT&T Data Communications Serv
18566 1022 1041 Covad Communications
9583 968 1123 Sify Limited
7011 915 1031 Citizens Utilities
4755 910 1550 Videsh Sanchar Nigam Ltd. Aut
23577 807 816 Korea Telecom (ATM-MPLS)
7018 799 1459 AT&T WorldNet Services
9498 777 1106 BHARTI BT INTERNET LTD.
17488 776 961 Hathway IP Over Cable Interne
6197 730 971 BellSouth Network Solutions,
4766 624 841 Korea Telecom (KIX)
4323 586 1381 Time Warner Telecom
15270 586 634 PaeTec.net -a division of Pae
6517 581 618 Yipes Communications, Inc.
19916 558 563 OLM LLC
5668 524 668 CenturyTel Internet Holdings,
4668 513 523 LG-EDS Systems Inc.
18101 496 609 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:98 12:1951 13:2 15:21 16:3
17:6 18:14 20:35 22:1 24:1016 25:1
31:1 32:61 33:4 38:386 40:65 41:466
44:2 47:8 52:3 55:3 56:3 57:22
58:510 59:420 60:408 61:974 62:1056 63:1974
64:3341 65:2373 66:3625 67:1060 68:637 69:2093
70:471 71:107 72:1460 73:12 74:806 75:171
76:196 77:475 78:459 79:70 80:884 81:792
82:583 83:349 84:525 85:951 86:371 87:608
88:292 89:1092 90:42 91:940 92:72 93:22
96:2 97:7 98:44 114:1 115:1 116:492
117:244 118:62 119:103 121:408 122:661 123:264
124:777 125:1070 128:309 129:199 130:131 131:393
132:68 133:9 134:188 135:33 136:216 137:97
138:156 139:62 140:495 141:106 142:378 143:266
144:324 145:51 146:334 147:130 148:482 149:178
150:119 151:133 152:95 153:130 154:11 155:282
156:198 157:250 158:164 159:213 160:214 161:96
162:199 163:185 164:559 165:418 166:291 167:307
168:565 169:131 170:430 171:28 172:3 173:1
189:144 190:1309 192:5756 193:4083 194:3249 195:2325
196:964 198:3791 199:3198 200:5393 201:1287 202:7500
203:7785 204:3966 205:2052 206:2431 207:2745 208:3107
209:3618 210:2534 211:1021 212:1287 213:1595 214:440
215:46 216:4132 217:1241 218:332 219:405 220:1007
221:413 222:298
End of report
