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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 27 Jan, 2008
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 243813
Prefixes after maximum aggregation: 124568
Deaggregation factor: 1.96
Unique aggregates announced to Internet: 119237
Total ASes present in the Internet Routing Table: 27186
Prefixes per ASN: 8.97
Origin-only ASes present in the Internet Routing Table: 23696
Origin ASes announcing only one prefix: 11507
Transit ASes present in the Internet Routing Table: 3490
Transit-only ASes present in the Internet Routing Table: 68
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: 23
Unregistered ASNs in the Routing Table: 13
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: 1822002656
Equivalent to 108 /8s, 153 /16s and 141 /24s
Percentage of available address space announced: 49.2
Percentage of allocated address space announced: 62.9
Percentage of available address space allocated: 78.2
Total number of prefixes smaller than registry allocations: 115002
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 55946
Total APNIC prefixes after maximum aggregation: 21089
APNIC Deaggregation factor: 2.65
Prefixes being announced from the APNIC address blocks: 53451
Unique aggregates announced from the APNIC address blocks: 23900
APNIC Region origin ASes present in the Internet Routing Table: 3112
APNIC Prefixes per ASN: 17.18
APNIC Region origin ASes announcing only one prefix: 815
APNIC Region transit ASes present in the Internet Routing Table: 466
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 326498720
Equivalent to 19 /8s, 117 /16s and 249 /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: 114920
Total ARIN prefixes after maximum aggregation: 65342
ARIN Deaggregation factor: 1.76
Prefixes being announced from the ARIN address blocks: 83863
Unique aggregates announced from the ARIN address blocks: 33421
ARIN Region origin ASes present in the Internet Routing Table: 12084
ARIN Prefixes per ASN: 6.94
ARIN Region origin ASes announcing only one prefix: 4654
ARIN Region transit ASes present in the Internet Routing Table: 1147
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 15
Number of ARIN addresses announced to Internet: 358322304
Equivalent to 21 /8s, 91 /16s and 144 /24s
Percentage of available ARIN address space announced: 79.1
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: 51176
Total RIPE prefixes after maximum aggregation: 32387
RIPE Deaggregation factor: 1.58
Prefixes being announced from the RIPE address blocks: 48470
Unique aggregates announced from the RIPE address blocks: 32240
RIPE Region origin ASes present in the Internet Routing Table: 10808
RIPE Prefixes per ASN: 4.48
RIPE Region origin ASes announcing only one prefix: 5681
RIPE Region transit ASes present in the Internet Routing Table: 1652
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 340952576
Equivalent to 20 /8s, 82 /16s and 134 /24s
Percentage of available RIPE address space announced: 78.2
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: 18382
Total LACNIC prefixes after maximum aggregation: 4626
LACNIC Deaggregation factor: 3.97
Prefixes being announced from the LACNIC address blocks: 16575
Unique aggregates announced from the LACNIC address blocks: 9080
LACNIC Region origin ASes present in the Internet Routing Table: 893
LACNIC Prefixes per ASN: 18.56
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: 15
Number of LACNIC addresses announced to Internet: 47318784
Equivalent to 2 /8s, 210 /16s and 7 /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: 3374
Total AfriNIC prefixes after maximum aggregation: 1106
AfriNIC Deaggregation factor: 3.05
Prefixes being announced from the AfriNIC address blocks: 2536
Unique aggregates announced from the AfriNIC address blocks: 1452
AfriNIC Region origin ASes present in the Internet Routing Table: 220
AfriNIC Prefixes per ASN: 11.53
AfriNIC Region origin ASes announcing only one prefix: 68
AfriNIC Region transit ASes present in the Internet Routing Table: 39
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 8252928
Equivalent to 0 /8s, 125 /16s and 238 /24s
Percentage of available AfriNIC address space announced: 24.6
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 74 Videsh Sanchar Nigam Ltd. Aut
9583 1122 83 439 Sify Limited
9498 1111 549 61 BHARTI BT INTERNET LTD.
17488 961 62 87 Hathway IP Over Cable Interne
4134 863 11761 311 CHINANET-BACKBONE
4766 841 5494 340 Korea Telecom (KIX)
23577 817 34 696 Korea Telecom (ATM-MPLS)
18101 610 128 65 Reliance Infocom Ltd Internet
4780 596 309 46 Digital United Inc.
9829 592 449 11 BSNL National Internet Backbo
4812 547 938 84 China Telecom (Shanghai)
1221 545 1952 420 Telstra Pty Ltd
4808 530 821 125 CNCGROUP IP network: China169
4668 523 68 10 LG-EDS Systems Inc.
17676 506 10919 64 Softbank BB Corp.
7545 496 147 93 TPG Internet Pty Ltd
4802 470 128 151 Wantree Development
9443 437 121 71 Primus Telecommunications
17974 402 145 17 PT TELEKOMUNIKASI INDONESIA
7474 385 202 271 SingTel Optus Pty Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1460 6073 988 AT&T WorldNet Services
4323 1384 1012 366 Time Warner Telecom
2386 1346 633 826 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
6197 1034 739 511 BellSouth Network Solutions,
7011 1032 301 594 Citizens Utilities
174 970 6833 812 Cogent Communications
701 897 6560 687 UUNET Technologies, Inc.
19262 876 3227 149 Verizon Global Networks
20115 867 797 472 Charter Communications
22773 845 2139 58 Cox Communications, Inc.
3356 840 10909 413 Level 3 Communications, LLC
1239 796 2672 554 Sprint
209 744 3910 596 Qwest
5668 672 179 23 CenturyTel Internet Holdings,
15270 635 193 55 PaeTec.net -a division of Pae
6517 619 151 42 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 332 1458 303 TeliaNet Sweden
3320 319 6019 265 Deutsche Telekom AG
8452 290 188 7 TEDATA
8866 281 78 24 Bulgarian Telecommunication C
8551 279 267 42 Bezeq International
8708 272 420 240 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 215 45 10 QualityNet AS number
3300 211 172 100 AUCS Communications Services
9121 207 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 1150 2390 218 UniNet S.A. de C.V.
11830 547 299 9 Instituto Costarricense de El
7303 428 208 54 Telecom Argentina Stet-France
16814 427 27 10 NSS, S.A.
11172 396 115 62 Servicios Alestra S.A de C.V
6471 394 85 39 ENTEL CHILE S.A.
10620 352 92 26 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 237 128 5 Cable-Wireless Panama
23216 232 17 49 RAMtelecom Telecomunicaciones
28573 230 322 24 NET Servicos de Comunicao S.A
20299 227 33 30 NEWCOM AMERICAS
6503 219 180 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 1111 1050 BHARTI BT INTERNET LTD.
18566 1041 1031 Covad Communications
4323 1384 1018 Time Warner Telecom
6478 1101 980 AT&T Worldnet Services
8151 1150 932 UniNet S.A. de C.V.
17488 961 874 Hathway IP Over Cable Interne
22773 845 787 Cox Communications, Inc.
19262 876 727 Verizon Global Networks
9583 1122 683 Sify Limited
5668 672 649 CenturyTel Internet Holdings,
9829 592 581 BSNL National Internet Backbo
15270 635 580 PaeTec.net -a division of Pae
6517 619 577 Yipes Communications, Inc.
4134 863 552 CHINANET-BACKBONE
4780 596 550 Digital United Inc.
18101 610 545 Reliance Infocom Ltd Internet
11830 547 538 Instituto Costarricense de El
6197 1034 523 BellSouth Network Solutions,
19916 563 521 OLM LLC
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
37927 UNALLOCATED 192.218.151.0/24 2516 Kokusai Denshin Denw
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 /11:39 /12:137
/13:275 /14:490 /15:973 /16:9739 /17:4218 /18:6959
/19:14936 /20:17119 /21:16254 /22:20460 /23:21581 /24:127944
/25:876 /26:1095 /27:555 /28:102 /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 1047 1346 AT&T Data Communications Serv
18566 1022 1041 Covad Communications
9583 967 1122 Sify Limited
7011 916 1032 Citizens Utilities
4755 911 1550 Videsh Sanchar Nigam Ltd. Aut
23577 808 817 Korea Telecom (ATM-MPLS)
7018 801 1460 AT&T WorldNet Services
9498 782 1111 BHARTI BT INTERNET LTD.
6197 776 1034 BellSouth Network Solutions,
17488 776 961 Hathway IP Over Cable Interne
4766 624 841 Korea Telecom (KIX)
4323 587 1384 Time Warner Telecom
15270 587 635 PaeTec.net -a division of Pae
6517 582 619 Yipes Communications, Inc.
19916 558 563 OLM LLC
5668 528 672 CenturyTel Internet Holdings,
4668 513 523 LG-EDS Systems Inc.
18101 497 610 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 24:1011 25:1
31:1 32:61 33:4 38:384 40:65 41:463
44:2 47:8 52:3 55:3 56:3 57:22
58:509 59:420 60:408 61:983 62:1057 63:1971
64:3362 65:2364 66:3624 67:1057 68:634 69:2092
70:470 71:102 72:1477 73:7 74:802 75:171
76:185 77:479 78:460 79:70 80:888 81:792
82:588 83:350 84:509 85:946 86:374 87:611
88:309 89:1102 90:42 91:948 92:72 93:54
96:2 97:7 98:37 114:1 115:1 116:490
117:247 118:62 119:100 121:408 122:663 123:267
124:780 125:1074 128:310 129:199 130:130 131:393
132:66 133:9 134:188 135:36 136:210 137:85
138:156 139:81 140:496 141:106 142:378 143:266
144:322 145:51 146:337 147:130 148:486 149:178
150:116 151:139 152:94 153:130 154:11 155:284
156:198 157:250 158:164 159:215 160:214 161:95
162:199 163:185 164:560 165:416 166:293 167:308
168:564 169:131 170:432 171:28 172:3 173:1
189:144 190:1315 192:5744 193:4085 194:3247 195:2309
196:957 198:3783 199:3195 200:5422 201:1269 202:7513
203:7926 204:3967 205:2070 206:2431 207:2739 208:3122
209:3636 210:2635 211:1023 212:1289 213:1589 214:443
215:47 216:4142 217:1211 218:336 219:398 220:1002
221:413 222:300
End of report
