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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 24 Oct, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/10/24/0400
Analysis Summary
----------------
BGP routing table entries examined: 235392
Prefixes after maximum aggregation: 121642
Deaggregation factor: 1.94
Unique aggregates announced to Internet: 113747
Total ASes present in the Internet Routing Table: 26539
Prefixes per ASN: 8.87
Origin-only ASes present in the Internet Routing Table: 23103
Origin ASes announcing only one prefix: 11270
Transit ASes present in the Internet Routing Table: 3436
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: 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: 1796862720
Equivalent to 107 /8s, 25 /16s and 243 /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: 109103
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 54863
Total APNIC prefixes after maximum aggregation: 20663
APNIC Deaggregation factor: 2.66
Prefixes being announced from the APNIC address blocks: 51795
Unique aggregates announced from the APNIC address blocks: 21888
APNIC Region origin ASes present in the Internet Routing Table: 3079
APNIC Prefixes per ASN: 16.82
APNIC Region origin ASes announcing only one prefix: 815
APNIC Region transit ASes present in the Internet Routing Table: 469
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 322218688
Equivalent to 19 /8s, 52 /16s and 170 /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: 110625
Total ARIN prefixes after maximum aggregation: 63638
ARIN Deaggregation factor: 1.74
Prefixes being announced from the ARIN address blocks: 81775
Unique aggregates announced from the ARIN address blocks: 32341
ARIN Region origin ASes present in the Internet Routing Table: 11906
ARIN Prefixes per ASN: 6.87
ARIN Region origin ASes announcing only one prefix: 4588
ARIN Region transit ASes present in the Internet Routing Table: 1105
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 15
Number of ARIN addresses announced to Internet: 348179072
Equivalent to 20 /8s, 192 /16s and 202 /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: 49711
Total RIPE prefixes after maximum aggregation: 31727
RIPE Deaggregation factor: 1.57
Prefixes being announced from the RIPE address blocks: 46181
Unique aggregates announced from the RIPE address blocks: 30431
RIPE Region origin ASes present in the Internet Routing Table: 10392
RIPE Prefixes per ASN: 4.44
RIPE Region origin ASes announcing only one prefix: 5518
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: 20
Number of RIPE addresses announced to Internet: 333767680
Equivalent to 19 /8s, 228 /16s and 228 /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: 17429
Total LACNIC prefixes after maximum aggregation: 4564
LACNIC Deaggregation factor: 3.82
Prefixes being announced from the LACNIC address blocks: 15449
Unique aggregates announced from the LACNIC address blocks: 8663
LACNIC Region origin ASes present in the Internet Routing Table: 872
LACNIC Prefixes per ASN: 17.72
LACNIC Region origin ASes announcing only one prefix: 282
LACNIC Region transit ASes present in the Internet Routing Table: 154
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 44591616
Equivalent to 2 /8s, 168 /16s and 106 /24s
Percentage of available LACNIC address space announced: 44.3
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: 2730
Total AfriNIC prefixes after maximum aggregation: 1038
AfriNIC Deaggregation factor: 2.63
Prefixes being announced from the AfriNIC address blocks: 2318
Unique aggregates announced from the AfriNIC address blocks: 1389
AfriNIC Region origin ASes present in the Internet Routing Table: 211
AfriNIC Prefixes per ASN: 10.99
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: 3.8
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 7626240
Equivalent to 0 /8s, 116 /16s and 94 /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 1127 108 15 Sify Limited
4134 1099 11539 299 CHINANET-BACKBONE
9498 1003 550 67 BHARTI BT INTERNET LTD.
17488 850 55 63 Hathway IP Over Cable Interne
4766 807 5441 320 Korea Telecom (KIX)
23577 791 34 684 Korea Telecom (ATM-MPLS)
7545 726 159 118 TPG Internet Pty Ltd
18101 607 119 52 Reliance Infocom Ltd Internet
1221 542 1950 424 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 493 792 118 CNCGROUP IP network: China169
4802 487 133 141 Wantree Development
9443 440 121 72 Primus Telecommunications
7474 380 202 266 SingTel Optus Pty Ltd
17974 363 130 13 PT TELEKOMUNIKASI INDONESIA
4837 359 5137 170 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1488 6149 998 AT&T WorldNet Services
4323 1350 1006 360 Time Warner Telecom
2386 1238 628 748 AT&T Data Communications Serv
11492 1158 116 16 Cable One
6478 1108 327 206 AT&T Worldnet Services
6197 1029 718 513 BellSouth Network Solutions,
18566 1028 288 9 Covad Communications
174 984 6786 843 Cogent Communications
7011 956 288 558 Citizens Utilities
701 880 6575 691 UUNET Technologies, Inc.
20115 837 765 447 Charter Communications
1239 801 2721 561 Sprint
22773 797 2133 54 Cox Communications, Inc.
19262 790 2848 181 Verizon Global Networks
209 746 3793 587 Qwest
3356 740 10891 392 Level 3 Communications, LLC
5668 662 176 17 CenturyTel Internet Holdings,
3561 592 2326 388 Savvis
6517 588 165 36 Yipes Communications, Inc.
852 584 1107 361 Telus Advanced Communications
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 474 1920 387 UUNET - Commercial IP service
24863 373 58 37 LINKdotNET AS number
9116 343 168 28 Goldenlines main autonomous s
3301 316 1441 293 TeliaNet Sweden
3320 315 6035 262 Deutsche Telekom AG
8551 310 298 41 Bezeq International
6746 279 130 255 Dynamic Network Technologies,
8708 271 421 243 Romania Data Systems S.A.
680 269 2045 257 DFN-IP service G-WiN
8866 266 62 24 Bulgarian Telecommunication C
3215 263 2488 99 France Telecom Transpac
8220 255 444 237 COLT Telecommunications
3352 232 1914 41 Ibernet, Internet Access Netw
3269 227 2933 74 TELECOM ITALIA
9121 212 1442 25 TTnet Autonomous System
3300 200 172 96 AUCS Communications Services
3292 195 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 1045 2195 213 UniNet S.A. de C.V.
11830 514 299 9 Instituto Costarricense de El
16814 427 27 10 NSS, S.A.
11172 380 114 60 Servicios Alestra S.A de C.V
14522 380 32 7 SatNet S.A.
7303 358 173 52 Telecom Argentina Stet-France
6471 347 75 36 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 231 178 24 Telefonica Del Peru
23216 210 17 46 RAMtelecom Telecomunicaciones
6503 209 170 82 AVANTEL, S.A.
7738 204 538 24 Telecomunicacoes da Bahia S.A
28573 197 307 24 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 220 188 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 55 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
29975 26 10 9 Vodacom
21280 25 4 4 Swift Global Kenya Ltd.Is an
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1472 1405 Videsh Sanchar Nigam Ltd. Aut
11492 1158 1142 Cable One
9583 1127 1112 Sify Limited
18566 1028 1019 Covad Communications
4323 1350 990 Time Warner Telecom
9498 1003 936 BHARTI BT INTERNET LTD.
6478 1108 902 AT&T Worldnet Services
8151 1045 832 UniNet S.A. de C.V.
4134 1099 800 CHINANET-BACKBONE
17488 850 787 Hathway IP Over Cable Interne
22773 797 743 Cox Communications, Inc.
5668 662 645 CenturyTel Internet Holdings,
19262 790 609 Verizon Global Networks
7545 726 608 TPG Internet Pty Ltd
18101 607 555 Reliance Infocom Ltd Internet
6517 588 552 Yipes Communications, Inc.
19916 569 522 OLM LLC
9829 530 521 BSNL National Internet Backbo
6197 1029 516 BellSouth Network Solutions,
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
/13:267 /14:477 /15:942 /16:9686 /17:4136 /18:6677
/19:14399 /20:16624 /21:15429 /22:19764 /23:20643 /24:123687
/25:779 /26:1020 /27:538 /28:94 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1149 1158 Cable One
6478 1107 1108 AT&T Worldnet Services
18566 1010 1028 Covad Communications
9583 962 1127 Sify Limited
2386 928 1238 AT&T Data Communications Serv
7011 843 956 Citizens Utilities
4755 841 1472 Videsh Sanchar Nigam Ltd. Aut
7018 814 1488 AT&T WorldNet Services
23577 782 791 Korea Telecom (ATM-MPLS)
6197 773 1029 BellSouth Network Solutions,
9498 690 1003 BHARTI BT INTERNET LTD.
17488 673 850 Hathway IP Over Cable Interne
4766 605 807 Korea Telecom (KIX)
4323 568 1350 Time Warner Telecom
19916 564 569 OLM LLC
6517 543 588 Yipes Communications, Inc.
5668 520 662 CenturyTel Internet Holdings,
4668 508 518 LG-EDS Systems Inc.
18101 508 607 Reliance Infocom Ltd Internet
15270 485 520 PaeTec.net -a division of Pae
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:83 12:1792 15:19 16:3 17:5
18:13 20:36 24:977 25:1 32:60 33:3
38:357 40:64 41:343 44:2 45:1 47:8
52:3 55:3 56:3 57:23 58:469 59:414
60:379 61:985 62:929 63:1984 64:3276 65:2367
66:3551 67:830 68:675 69:1998 70:463 71:107
72:1411 73:6 74:725 75:261 76:149 77:403
78:245 80:855 81:794 82:578 83:356 84:617
85:847 86:348 87:580 88:289 89:1054 90:38
91:674 92:3 96:1 97:6 98:6 116:414
117:204 118:39 121:319 122:615 123:205 124:699
125:1036 128:275 129:195 130:136 131:368 132:56
133:9 134:192 135:34 136:188 137:82 138:157
139:74 140:501 141:151 142:371 143:253 144:317
145:46 146:327 147:130 148:485 149:187 150:111
151:137 152:89 153:121 154:11 155:261 156:161
157:223 158:160 159:200 160:140 161:98 162:179
163:183 164:494 165:398 166:290 167:307 168:499
169:126 170:399 171:22 172:2 189:101 190:1172
192:5715 193:3993 194:3216 195:2471 196:942 198:3798
199:3234 200:5245 201:1238 202:7375 203:7785 204:3983
205:2016 206:2420 207:2804 208:2898 209:3583 210:2451
211:1078 212:1341 213:1513 214:415 215:44 216:4096
217:1225 218:317 219:388 220:998 221:412 222:264
End of report
