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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 15 Nov, 2007
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 237671
Prefixes after maximum aggregation: 122602
Deaggregation factor: 1.94
Unique aggregates announced to Internet: 115993
Total ASes present in the Internet Routing Table: 26655
Prefixes per ASN: 8.92
Origin-only ASes present in the Internet Routing Table: 23224
Origin ASes announcing only one prefix: 11293
Transit ASes present in the Internet Routing Table: 3431
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: 28
Max AS path prepend of ASN (35389) 25
Prefixes from unregistered ASNs in the Routing Table: 10
Unregistered ASNs in the Routing Table: 5
Prefixes from 32-bit ASNs in the Routing Table: 7
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1791711936
Equivalent to 106 /8s, 203 /16s and 90 /24s
Percentage of available address space announced: 48.3
Percentage of allocated address space announced: 61.8
Percentage of available address space allocated: 78.2
Total number of prefixes smaller than registry allocations: 110621
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 55496
Total APNIC prefixes after maximum aggregation: 21187
APNIC Deaggregation factor: 2.62
Prefixes being announced from the APNIC address blocks: 52389
Unique aggregates announced from the APNIC address blocks: 23158
APNIC Region origin ASes present in the Internet Routing Table: 3081
APNIC Prefixes per ASN: 17.00
APNIC Region origin ASes announcing only one prefix: 805
APNIC Region transit ASes present in the Internet Routing Table: 472
Average APNIC Region AS path length visible: 3.7
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 324945600
Equivalent to 19 /8s, 94 /16s and 70 /24s
Percentage of available APNIC address space announced: 74.3
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: 111633
Total ARIN prefixes after maximum aggregation: 63827
ARIN Deaggregation factor: 1.75
Prefixes being announced from the ARIN address blocks: 82453
Unique aggregates announced from the ARIN address blocks: 32736
ARIN Region origin ASes present in the Internet Routing Table: 11942
ARIN Prefixes per ASN: 6.90
ARIN Region origin ASes announcing only one prefix: 4597
ARIN Region transit ASes present in the Internet Routing Table: 1115
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 14
Number of ARIN addresses announced to Internet: 352248704
Equivalent to 20 /8s, 254 /16s and 227 /24s
Percentage of available ARIN address space announced: 77.8
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: 49589
Total RIPE prefixes after maximum aggregation: 31944
RIPE Deaggregation factor: 1.55
Prefixes being announced from the RIPE address blocks: 46448
Unique aggregates announced from the RIPE address blocks: 30932
RIPE Region origin ASes present in the Internet Routing Table: 10465
RIPE Prefixes per ASN: 4.44
RIPE Region origin ASes announcing only one prefix: 5541
RIPE Region transit ASes present in the Internet Routing Table: 1631
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 28
Number of RIPE addresses announced to Internet: 336565952
Equivalent to 20 /8s, 15 /16s and 150 /24s
Percentage of available RIPE address space announced: 77.2
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: 17694
Total LACNIC prefixes after maximum aggregation: 4555
LACNIC Deaggregation factor: 3.88
Prefixes being announced from the LACNIC address blocks: 15650
Unique aggregates announced from the LACNIC address blocks: 8699
LACNIC Region origin ASes present in the Internet Routing Table: 875
LACNIC Prefixes per ASN: 17.89
LACNIC Region origin ASes announcing only one prefix: 283
LACNIC Region transit ASes present in the Internet Routing Table: 148
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 46042368
Equivalent to 2 /8s, 190 /16s and 141 /24s
Percentage of available LACNIC address space announced: 45.7
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: 3241
Total AfriNIC prefixes after maximum aggregation: 1075
AfriNIC Deaggregation factor: 3.01
Prefixes being announced from the AfriNIC address blocks: 2403
Unique aggregates announced from the AfriNIC address blocks: 1407
AfriNIC Region origin ASes present in the Internet Routing Table: 213
AfriNIC Prefixes per ASN: 11.28
AfriNIC Region origin ASes announcing only one prefix: 67
AfriNIC Region transit ASes present in the Internet Routing Table: 37
Average AfriNIC Region AS path length visible: 3.6
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 8171520
Equivalent to 0 /8s, 124 /16s and 176 /24s
Percentage of available AfriNIC address space announced: 24.4
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 1476 383 69 Videsh Sanchar Nigam Ltd. Aut
4134 1101 11564 302 CHINANET-BACKBONE
9583 1089 81 423 Sify Limited
9498 1047 549 64 BHARTI BT INTERNET LTD.
17488 879 57 70 Hathway IP Over Cable Interne
4766 816 5474 329 Korea Telecom (KIX)
23577 796 33 678 Korea Telecom (ATM-MPLS)
7545 721 159 123 TPG Internet Pty Ltd
18101 613 120 56 Reliance Infocom Ltd Internet
1221 544 1951 424 Telstra Pty Ltd
9829 530 1312 9 BSNL National Internet Backbo
4812 524 866 77 China Telecom (Shanghai)
4668 520 68 10 LG-EDS Systems Inc.
17676 504 10919 64 Softbank BB Corp.
4808 497 799 122 CNCGROUP IP network: China169
4802 481 130 141 Wantree Development
9443 440 121 70 Primus Telecommunications
17974 403 146 14 PT TELEKOMUNIKASI INDONESIA
7474 383 202 269 SingTel Optus Pty Ltd
4837 356 5050 168 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1500 6146 1012 AT&T WorldNet Services
4323 1367 1014 359 Time Warner Telecom
2386 1269 634 776 AT&T Data Communications Serv
11492 1169 121 43 Cable One
6478 1122 329 181 AT&T Worldnet Services
18566 1031 288 9 Covad Communications
6197 1030 719 509 BellSouth Network Solutions,
7011 986 291 568 Citizens Utilities
174 977 6864 844 Cogent Communications
701 905 6571 707 UUNET Technologies, Inc.
20115 843 773 453 Charter Communications
3356 830 10887 413 Level 3 Communications, LLC
22773 818 2133 54 Cox Communications, Inc.
19262 811 2925 182 Verizon Global Networks
1239 801 2713 557 Sprint
209 730 3784 573 Qwest
5668 664 176 17 CenturyTel Internet Holdings,
15270 600 161 41 PaeTec.net -a division of Pae
3561 588 2324 370 Savvis
6517 587 163 33 Yipes Communications, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 469 1917 382 UUNET - Commercial IP service
9116 349 184 28 Goldenlines main autonomous s
8551 326 314 40 Bezeq International
3301 316 1441 293 TeliaNet Sweden
3320 316 6035 262 Deutsche Telekom AG
8452 276 188 7 TEDATA
8866 275 62 25 Bulgarian Telecommunication C
6746 274 129 252 Dynamic Network Technologies,
8708 274 421 245 Romania Data Systems S.A.
680 268 2045 254 DFN-IP service G-WiN
3215 265 2519 91 France Telecom Transpac
8220 255 444 236 COLT Telecommunications
3352 232 1931 40 Ibernet, Internet Access Netw
3269 230 2967 72 TELECOM ITALIA
9121 210 1442 25 TTnet Autonomous System
3300 198 171 93 AUCS Communications Services
3246 196 258 186 Song Networks
12479 195 578 6 Uni2 Autonomous System
1257 193 1194 176 SWIPnet Swedish IP Network
3292 193 1380 177 TDC Tele Danmark
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1163 2419 216 UniNet S.A. de C.V.
11830 539 299 9 Instituto Costarricense de El
16814 427 27 10 NSS, S.A.
14522 381 33 8 SatNet S.A.
7303 376 182 56 Telecom Argentina Stet-France
11172 374 114 60 Servicios Alestra S.A de C.V
6471 357 85 38 ENTEL CHILE S.A.
22047 317 246 13 VTR PUNTO NET S.A.
10481 301 120 10 Prima S.A.
10620 254 71 43 TVCABLE BOGOTA
6147 242 182 20 Telefonica Del Peru
11556 236 128 4 Cable-Wireless Panama
23216 221 18 48 RAMtelecom Telecomunicaciones
6503 217 187 86 AVANTEL, S.A.
28573 213 314 27 NET Servicos de Comunicao S.A
14117 212 19 15 Telefonica del Sur S.A.
7738 206 538 24 Telecomunicacoes da Bahia S.A
20299 188 33 30 NEWCOM AMERICAS
21826 186 33 47 INTERCABLE
19169 182 12 19 Telconet
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 385 60 42 LINKdotNET AS number
3741 281 869 226 The Internet Solution
20858 198 34 3 EgyNet
6713 143 135 11 Itissalat Al-MAGHRIB
2018 140 299 115 Tertiary Education Network
33783 126 8 12 EEPAD TISP TELECOM & INTERNET
5536 124 8 10 Internet Egypt Network
33776 100 6 3 Starcomms Nigeria Limited
24835 88 48 6 RAYA Telecom - Egypt
15475 81 84 4 Nile Online
2905 76 176 73 The Internetworking Company o
23889 76 24 15 MAURITIUS TELECOM
20484 64 5 6 Yalla Online Autonomous Syste
15706 58 12 4 Sudatel Internet Exchange Aut
29571 55 11 7 Ci Telecom Autonomous system
33774 48 33 26 AS Number for Telecom Algeria
5713 46 422 36 Telkom SA Ltd
16637 42 21 29 Johnnic e-Ventures
12455 36 6 3 Jambonet Autonomous system
8524 32 2 10 AUCEGYPT Autonomous System
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1476 1407 Videsh Sanchar Nigam Ltd. Aut
11492 1169 1126 Cable One
18566 1031 1022 Covad Communications
4323 1367 1008 Time Warner Telecom
9498 1047 983 BHARTI BT INTERNET LTD.
8151 1163 947 UniNet S.A. de C.V.
6478 1122 941 AT&T Worldnet Services
17488 879 809 Hathway IP Over Cable Interne
4134 1101 799 CHINANET-BACKBONE
22773 818 764 Cox Communications, Inc.
9583 1089 666 Sify Limited
5668 664 647 CenturyTel Internet Holdings,
19262 811 629 Verizon Global Networks
7545 721 598 TPG Internet Pty Ltd
15270 600 559 PaeTec.net -a division of Pae
18101 613 557 Reliance Infocom Ltd Internet
6517 587 554 Yipes Communications, Inc.
11830 539 530 Instituto Costarricense de El
19916 569 522 OLM LLC
6197 1030 521 BellSouth Network Solutions,
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
64999 PRIVATE 78.24.120.0/23 3257 Tiscali Intl Network
64999 PRIVATE 78.24.122.0/23 3257 Tiscali Intl Network
64999 PRIVATE 78.24.124.0/24 3257 Tiscali Intl Network
64999 PRIVATE 78.24.125.0/24 3257 Tiscali Intl Network
64999 PRIVATE 78.24.126.0/24 3257 Tiscali Intl Network
64999 PRIVATE 78.24.127.0/24 3257 Tiscali Intl Network
65068 PRIVATE 79.171.184.0/21 43895 *
65300 PRIVATE 216.243.221.0/24 11320 Internet Express, In
65300 PRIVATE 216.243.222.0/24 11320 Internet Express, In
65300 PRIVATE 216.243.223.0/24 11320 Internet Express, In
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
172.14.254.0/24 20312 CNTI-REACCIUN "Centro Naciona
172.15.254.0/24 20312 CNTI-REACCIUN "Centro Naciona
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 /8:18 /9:9 /10:16 /11:39 /12:135
/13:270 /14:484 /15:948 /16:9729 /17:4201 /18:6777
/19:14682 /20:16807 /21:15669 /22:19888 /23:20887 /24:124589
/25:819 /26:1027 /27:549 /28:115 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1160 1169 Cable One
6478 1121 1122 AT&T Worldnet Services
18566 1013 1031 Covad Communications
2386 961 1269 AT&T Data Communications Serv
9583 933 1089 Sify Limited
7011 873 986 Citizens Utilities
4755 849 1476 Videsh Sanchar Nigam Ltd. Aut
7018 825 1500 AT&T WorldNet Services
23577 787 796 Korea Telecom (ATM-MPLS)
6197 773 1030 BellSouth Network Solutions,
9498 731 1047 BHARTI BT INTERNET LTD.
17488 694 879 Hathway IP Over Cable Interne
4766 606 816 Korea Telecom (KIX)
4323 581 1367 Time Warner Telecom
19916 564 569 OLM LLC
15270 562 600 PaeTec.net -a division of Pae
6517 543 587 Yipes Communications, Inc.
5668 522 664 CenturyTel Internet Holdings,
4668 510 520 LG-EDS Systems Inc.
18101 509 613 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:89 12:1835 15:19 16:3 17:6
18:13 20:35 24:994 25:1 31:1 32:63
33:3 38:361 40:64 41:396 44:2 47:8
52:3 55:3 56:3 57:21 58:479 59:413
60:384 61:985 62:936 63:1981 64:3294 65:2372
66:3581 67:909 68:677 69:2016 70:466 71:106
72:1439 73:7 74:763 75:264 76:156 77:423
78:276 79:15 80:870 81:798 82:570 83:351
84:615 85:820 86:359 87:592 88:283 89:1022
90:39 91:747 92:5 96:2 97:6 98:12
116:430 117:221 118:45 121:338 122:642 123:205
124:717 125:1049 128:309 129:195 130:137 131:371
132:57 133:9 134:194 135:34 136:192 137:82
138:153 139:76 140:513 141:146 142:373 143:258
144:324 145:48 146:303 147:125 148:486 149:185
150:169 151:137 152:95 153:122 154:11 155:261
156:164 157:225 158:160 159:197 160:155 161:101
162:190 163:184 164:497 165:405 166:289 167:309
168:514 169:130 170:421 171:29 172:5 173:1
189:116 190:1175 192:5732 193:4032 194:3208 195:2319
196:942 198:3803 199:3227 200:5220 201:1247 202:7425
203:7833 204:3990 205:1998 206:2424 207:2784 208:2955
209:3607 210:2493 211:1107 212:1305 213:1543 214:420
215:44 216:4085 217:1193 218:320 219:399 220:1016
221:408 222:266
End of report
