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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 26 Oct, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/10/26/0400
Analysis Summary
----------------
BGP routing table entries examined: 235708
Prefixes after maximum aggregation: 121776
Deaggregation factor: 1.94
Unique aggregates announced to Internet: 113880
Total ASes present in the Internet Routing Table: 26562
Prefixes per ASN: 8.87
Origin-only ASes present in the Internet Routing Table: 23123
Origin ASes announcing only one prefix: 11274
Transit ASes present in the Internet Routing Table: 3439
Transit-only ASes present in the Internet Routing Table: 81
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 20
Max AS path prepend of ASN (35389) 16
Prefixes from unregistered ASNs in the Routing Table: 27
Unregistered ASNs in the Routing Table: 9
Prefixes from 32-bit ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 10
Number of addresses announced to Internet: 1797319040
Equivalent to 107 /8s, 32 /16s and 233 /24s
Percentage of available address space announced: 48.5
Percentage of allocated address space announced: 62.7
Percentage of available address space allocated: 77.3
Total number of prefixes smaller than registry allocations: 109290
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 55002
Total APNIC prefixes after maximum aggregation: 20702
APNIC Deaggregation factor: 2.66
Prefixes being announced from the APNIC address blocks: 51918
Unique aggregates announced from the APNIC address blocks: 21936
APNIC Region origin ASes present in the Internet Routing Table: 3074
APNIC Prefixes per ASN: 16.89
APNIC Region origin ASes announcing only one prefix: 807
APNIC Region transit ASes present in the Internet Routing Table: 468
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 322224064
Equivalent to 19 /8s, 52 /16s and 191 /24s
Percentage of available APNIC address space announced: 79.8
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, 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: 110770
Total ARIN prefixes after maximum aggregation: 63680
ARIN Deaggregation factor: 1.74
Prefixes being announced from the ARIN address blocks: 81923
Unique aggregates announced from the ARIN address blocks: 32447
ARIN Region origin ASes present in the Internet Routing Table: 11906
ARIN Prefixes per ASN: 6.88
ARIN Region origin ASes announcing only one prefix: 4585
ARIN Region transit ASes present in the Internet Routing Table: 1103
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 15
Number of ARIN addresses announced to Internet: 348262016
Equivalent to 20 /8s, 194 /16s and 14 /24s
Percentage of available ARIN address space announced: 76.9
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: 49663
Total RIPE prefixes after maximum aggregation: 31769
RIPE Deaggregation factor: 1.56
Prefixes being announced from the RIPE address blocks: 46140
Unique aggregates announced from the RIPE address blocks: 30420
RIPE Region origin ASes present in the Internet Routing Table: 10415
RIPE Prefixes per ASN: 4.43
RIPE Region origin ASes announcing only one prefix: 5534
RIPE Region transit ASes present in the Internet Routing Table: 1637
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 333910656
Equivalent to 19 /8s, 231 /16s and 18 /24s
Percentage of available RIPE address space announced: 76.5
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: 17506
Total LACNIC prefixes after maximum aggregation: 4574
LACNIC Deaggregation factor: 3.83
Prefixes being announced from the LACNIC address blocks: 15520
Unique aggregates announced from the LACNIC address blocks: 8651
LACNIC Region origin ASes present in the Internet Routing Table: 873
LACNIC Prefixes per ASN: 17.78
LACNIC Region origin ASes announcing only one prefix: 280
LACNIC Region transit ASes present in the Internet Routing Table: 153
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 44800000
Equivalent to 2 /8s, 171 /16s and 152 /24s
Percentage of available LACNIC address space announced: 44.5
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: 2733
Total AfriNIC prefixes after maximum aggregation: 1039
AfriNIC Deaggregation factor: 2.63
Prefixes being announced from the AfriNIC address blocks: 2321
Unique aggregates announced from the AfriNIC address blocks: 1393
AfriNIC Region origin ASes present in the Internet Routing Table: 212
AfriNIC Prefixes per ASN: 10.95
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: 3.9
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 7631360
Equivalent to 0 /8s, 116 /16s and 114 /24s
Percentage of available AfriNIC address space announced: 22.7
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 1472 383 67 Videsh Sanchar Nigam Ltd. Aut
9583 1117 108 15 Sify Limited
4134 1098 11539 299 CHINANET-BACKBONE
9498 1014 550 67 BHARTI BT INTERNET LTD.
17488 855 55 67 Hathway IP Over Cable Interne
4766 815 5473 327 Korea Telecom (KIX)
23577 781 34 684 Korea Telecom (ATM-MPLS)
7545 718 159 120 TPG Internet Pty Ltd
18101 608 119 52 Reliance Infocom Ltd Internet
1221 542 1950 422 Telstra Pty Ltd
9829 530 1312 9 BSNL National Internet Backbo
4812 523 858 76 China Telecom (Shanghai)
4668 518 68 10 LG-EDS Systems Inc.
17676 502 10903 63 Softbank BB Corp.
4808 495 792 119 CNCGROUP IP network: China169
4802 487 133 141 Wantree Development
9443 441 121 72 Primus Telecommunications
7474 380 202 266 SingTel Optus Pty Ltd
17974 361 130 13 PT TELEKOMUNIKASI INDONESIA
4837 357 5057 168 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1491 6149 1002 AT&T WorldNet Services
4323 1346 1006 357 Time Warner Telecom
2386 1235 627 749 AT&T Data Communications Serv
11492 1153 117 39 Cable One
6478 1114 328 197 AT&T Worldnet Services
6197 1030 718 508 BellSouth Network Solutions,
18566 1028 288 9 Covad Communications
174 990 6787 845 Cogent Communications
7011 958 289 559 Citizens Utilities
701 885 6576 694 UUNET Technologies, Inc.
20115 849 774 458 Charter Communications
1239 801 2721 559 Sprint
22773 799 2133 54 Cox Communications, Inc.
19262 792 2853 183 Verizon Global Networks
3356 755 10890 396 Level 3 Communications, LLC
209 729 3783 572 Qwest
5668 663 176 17 CenturyTel Internet Holdings,
6517 591 165 36 Yipes Communications, Inc.
3561 588 2326 386 Savvis
852 579 1107 356 Telus Advanced Communications
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 468 1902 381 UUNET - Commercial IP service
24863 374 58 38 LINKdotNET AS number
9116 343 168 28 Goldenlines main autonomous s
3301 316 1441 293 TeliaNet Sweden
3320 316 6035 263 Deutsche Telekom AG
8551 311 298 41 Bezeq International
6746 276 130 253 Dynamic Network Technologies,
8708 271 421 243 Romania Data Systems S.A.
8866 269 62 25 Bulgarian Telecommunication C
680 266 2045 254 DFN-IP service G-WiN
3215 263 2488 99 France Telecom Transpac
8220 257 445 238 COLT Telecommunications
3352 232 1916 40 Ibernet, Internet Access Netw
3269 228 2935 75 TELECOM ITALIA
9121 212 1442 25 TTnet Autonomous System
3300 199 172 95 AUCS Communications Services
3292 196 1380 177 TDC Tele Danmark
20858 195 34 3 EgyNet
1257 194 1194 176 SWIPnet Swedish IP Network
3246 194 257 184 Song Networks
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1054 2196 214 UniNet S.A. de C.V.
11830 514 299 9 Instituto Costarricense de El
16814 427 27 10 NSS, S.A.
14522 380 32 7 SatNet S.A.
11172 374 114 60 Servicios Alestra S.A de C.V
7303 359 173 52 Telecom Argentina Stet-France
6471 348 75 37 ENTEL CHILE S.A.
22047 317 246 13 VTR PUNTO NET S.A.
14117 285 19 15 Telefonica del Sur S.A.
10620 263 73 29 TVCABLE BOGOTA
10481 261 104 9 Prima S.A.
11556 237 128 4 Cable-Wireless Panama
6147 230 178 24 Telefonica Del Peru
6503 211 186 83 AVANTEL, S.A.
23216 211 17 47 RAMtelecom Telecomunicaciones
7738 204 538 24 Telecomunicacoes da Bahia S.A
28573 199 314 27 NET Servicos de Comunicao S.A
8163 183 11 8 METROTEL REDES S.A.
20299 181 25 31 NEWCOM AMERICAS
21826 181 32 50 INTERCABLE
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 279 869 225 The Internet Solution
8452 221 188 7 TEDATA
6713 143 135 11 Itissalat Al-MAGHRIB
2018 140 299 115 Tertiary Education Network
33783 127 8 11 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 77 84 4 Nile Online
2905 75 174 72 The Internetworking Company o
23889 73 24 15 MAURITIUS TELECOM
15706 53 12 4 Sudatel Internet Exchange Aut
33774 48 33 25 AS Number for Telecom Algeria
5713 46 294 36 Telkom SA Ltd
16637 42 21 29 Johnnic e-Ventures
12455 35 6 3 Jambonet Autonomous system
8524 32 2 10 AUCEGYPT Autonomous System
10798 26 16 1 Standard Bank of South Africa
21280 26 4 4 Swift Global Kenya Ltd.Is an
29975 26 10 9 Vodacom
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1472 1405 Videsh Sanchar Nigam Ltd. Aut
11492 1153 1114 Cable One
9583 1117 1102 Sify Limited
18566 1028 1019 Covad Communications
4323 1346 989 Time Warner Telecom
9498 1014 947 BHARTI BT INTERNET LTD.
6478 1114 917 AT&T Worldnet Services
8151 1054 840 UniNet S.A. de C.V.
4134 1098 799 CHINANET-BACKBONE
17488 855 788 Hathway IP Over Cable Interne
22773 799 745 Cox Communications, Inc.
5668 663 646 CenturyTel Internet Holdings,
19262 792 609 Verizon Global Networks
7545 718 598 TPG Internet Pty Ltd
18101 608 556 Reliance Infocom Ltd Internet
6517 591 555 Yipes Communications, Inc.
6197 1030 522 BellSouth Network Solutions,
19916 569 522 OLM LLC
9829 530 521 BSNL National Internet Backbo
4668 518 508 LG-EDS Systems Inc.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
64250 RESERVED 59.144.44.0/24 9498 BHARTI BT INTERNET L
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
64250 RESERVED 122.167.64.0/19 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.96.0/20 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.112.0/21 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.176.0/21 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.188.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.192.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.196.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.200.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.204.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.208.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.212.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.216.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.220.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.240.0/23 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.242.0/23 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.244.0/23 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.246.0/23 9498 BHARTI BT INTERNET L
64250 RESERVED 122.171.0.0/24 9498 BHARTI BT INTERNET L
64250 RESERVED 122.171.1.0/24 9498 BHARTI BT INTERNET L
65000 PRIVATE 216.136.11.0/24 27182 Peregrine Capital Ma
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
192.153.136.0/21 721 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 /10:16 /11:38 /12:135
/13:268 /14:478 /15:944 /16:9688 /17:4144 /18:6682
/19:14423 /20:16667 /21:15456 /22:19768 /23:20711 /24:123813
/25:778 /26:1015 /27:542 /28:101 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1145 1153 Cable One
6478 1113 1114 AT&T Worldnet Services
18566 1010 1028 Covad Communications
9583 952 1117 Sify Limited
2386 925 1235 AT&T Data Communications Serv
7011 845 958 Citizens Utilities
4755 842 1472 Videsh Sanchar Nigam Ltd. Aut
7018 816 1491 AT&T WorldNet Services
6197 774 1030 BellSouth Network Solutions,
23577 772 781 Korea Telecom (ATM-MPLS)
9498 701 1014 BHARTI BT INTERNET LTD.
17488 674 855 Hathway IP Over Cable Interne
4766 606 815 Korea Telecom (KIX)
4323 569 1346 Time Warner Telecom
19916 564 569 OLM LLC
6517 546 591 Yipes Communications, Inc.
5668 521 663 CenturyTel Internet Holdings,
18101 509 608 Reliance Infocom Ltd Internet
4668 508 518 LG-EDS Systems Inc.
15270 446 480 PaeTec.net -a division of Pae
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:86 12:1794 15:19 16:3 17:5
18:13 20:36 24:982 25:1 32:57 33:3
38:355 40:64 41:346 44:2 45:2 47:8
52:3 55:3 56:3 57:23 58:470 59:416
60:380 61:983 62:937 63:1981 64:3282 65:2369
66:3559 67:834 68:673 69:2002 70:463 71:108
72:1411 73:6 74:727 75:262 76:151 77:407
78:247 79:1 80:853 81:798 82:584 83:353
84:621 85:823 86:348 87:582 88:286 89:1010
90:38 91:671 92:3 96:1 97:7 98:9
116:409 117:203 118:39 121:321 122:632 123:205
124:701 125:1039 128:276 129:195 130:136 131:367
132:56 133:9 134:193 135:34 136:188 137:82
138:156 139:74 140:503 141:151 142:371 143:254
144:317 145:46 146:327 147:130 148:485 149:186
150:113 151:137 152:89 153:121 154:11 155:261
156:160 157:223 158:160 159:194 160:140 161:99
162:186 163:183 164:497 165:396 166:290 167:308
168:501 169:126 170:399 171:22 172:2 189:118
190:1210 192:5708 193:3994 194:3212 195:2468 196:942
198:3795 199:3229 200:5244 201:1238 202:7382 203:7808
204:3983 205:2029 206:2420 207:2803 208:2906 209:3593
210:2467 211:1078 212:1346 213:1525 214:418 215:45
216:4087 217:1200 218:317 219:389 220:1010 221:409
222:265
End of report
