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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 11 Sep, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/09/11/0400
Analysis Summary
----------------
BGP routing table entries examined: 230289
Prefixes after maximum aggregation: 120384
Deaggregation factor: 1.91
Unique aggregates announced to Internet: 112036
Total ASes present in the Internet Routing Table: 26150
Prefixes per ASN: 8.81
Origin-only ASes present in the Internet Routing Table: 22767
Origin ASes announcing only one prefix: 11077
Transit ASes present in the Internet Routing Table: 3383
Transit-only ASes present in the Internet Routing Table: 77
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (43329) 20
Prefixes from unregistered ASNs in the Routing Table: 13
Unregistered ASNs in the Routing Table: 11
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: 11
Number of addresses announced to Internet: 1757898720
Equivalent to 104 /8s, 199 /16s and 103 /24s
Percentage of available address space announced: 47.4
Percentage of allocated address space announced: 62.1
Percentage of available address space allocated: 76.4
Total number of prefixes smaller than registry allocations: 122152
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 53747
Total APNIC prefixes after maximum aggregation: 20894
APNIC Deaggregation factor: 2.57
Prefixes being announced from the APNIC address blocks: 50674
Unique aggregates announced from the APNIC address blocks: 22506
APNIC Region origin ASes present in the Internet Routing Table: 3049
APNIC Prefixes per ASN: 16.62
APNIC Region origin ASes announcing only one prefix: 807
APNIC Region transit ASes present in the Internet Routing Table: 467
Average APNIC Region AS path length visible: 3.7
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 313589920
Equivalent to 18 /8s, 177 /16s and 0 /24s
Percentage of available APNIC address space announced: 77.7
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, 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: 108886
Total ARIN prefixes after maximum aggregation: 63000
ARIN Deaggregation factor: 1.73
Prefixes being announced from the ARIN address blocks: 80212
Unique aggregates announced from the ARIN address blocks: 31939
ARIN Region origin ASes present in the Internet Routing Table: 11802
ARIN Prefixes per ASN: 6.80
ARIN Region origin ASes announcing only one prefix: 4510
ARIN Region transit ASes present in the Internet Routing Table: 1095
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 15
Number of ARIN addresses announced to Internet: 343558912
Equivalent to 20 /8s, 122 /16s and 75 /24s
Percentage of available ARIN address space announced: 75.8
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: 48158
Total RIPE prefixes after maximum aggregation: 30979
RIPE Deaggregation factor: 1.55
Prefixes being announced from the RIPE address blocks: 44566
Unique aggregates announced from the RIPE address blocks: 29537
RIPE Region origin ASes present in the Internet Routing Table: 10152
RIPE Prefixes per ASN: 4.39
RIPE Region origin ASes announcing only one prefix: 5410
RIPE Region transit ASes present in the Internet Routing Table: 1609
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 326506880
Equivalent to 19 /8s, 118 /16s and 25 /24s
Percentage of available RIPE address space announced: 74.9
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
40960-44031
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: 16762
Total LACNIC prefixes after maximum aggregation: 4462
LACNIC Deaggregation factor: 3.76
Prefixes being announced from the LACNIC address blocks: 14868
Unique aggregates announced from the LACNIC address blocks: 7865
LACNIC Region origin ASes present in the Internet Routing Table: 863
LACNIC Prefixes per ASN: 17.23
LACNIC Region origin ASes announcing only one prefix: 282
LACNIC Region transit ASes present in the Internet Routing Table: 145
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 42212864
Equivalent to 2 /8s, 132 /16s and 30 /24s
Percentage of available LACNIC address space announced: 62.9
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 189/8, 190/8, 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 2722
Total AfriNIC prefixes after maximum aggregation: 1037
AfriNIC Deaggregation factor: 2.62
Prefixes being announced from the AfriNIC address blocks: 2295
Unique aggregates announced from the AfriNIC address blocks: 1331
AfriNIC Region origin ASes present in the Internet Routing Table: 206
AfriNIC Prefixes per ASN: 11.14
AfriNIC Region origin ASes announcing only one prefix: 68
AfriNIC Region transit ASes present in the Internet Routing Table: 35
Average AfriNIC Region AS path length visible: 4.1
Max AfriNIC Region AS path length visible: 20
Number of AfriNIC addresses announced to Internet: 7454208
Equivalent to 0 /8s, 113 /16s and 190 /24s
Percentage of available AfriNIC address space announced: 22.2
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 1354 383 70 Videsh Sanchar Nigam Ltd. Aut
9583 1123 81 417 Sify Limited
4134 1075 11220 292 CHINANET-BACKBONE
9498 1001 532 64 BHARTI BT INTERNET LTD.
4766 809 5441 320 Korea Telecom (KIX)
17488 796 52 55 Hathway IP Over Cable Interne
23577 787 34 683 Korea Telecom (ATM-MPLS)
7545 724 159 121 TPG Internet Pty Ltd
18101 596 119 50 Reliance Infocom Ltd Internet
4812 549 974 95 China Telecom (Shanghai)
1221 535 1950 416 Telstra Pty Ltd
4668 516 68 10 LG-EDS Systems Inc.
17676 502 10903 63 Softbank BB Corp.
4808 484 778 115 CNCGROUP IP network: China169
9443 467 122 77 Primus Telecommunications
4802 438 117 154 Wantree Development
17974 379 130 13 PT TELEKOMUNIKASI INDONESIA
7474 378 216 266 SingTel Optus Pty Ltd
4837 366 5104 167 chinanet IDC center beijing n
9829 359 257 10 BSNL National Internet Backbo
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1472 6074 995 AT&T WorldNet Services
4323 1316 988 370 Time Warner Telecom
2386 1212 636 733 AT&T Data Communications Serv
11492 1145 112 15 Cable One
6478 1133 325 163 AT&T Worldnet Services
6197 1032 718 509 BellSouth Network Solutions,
18566 1023 288 9 Covad Communications
174 972 6780 861 Cogent Communications
7011 921 278 550 Citizens Utilities
701 873 6573 678 UUNET Technologies, Inc.
20115 817 751 436 Charter Communications
1239 803 2719 566 Sprint
19262 774 2745 183 Verizon Global Networks
22773 766 2149 50 Cox Communications, Inc.
209 746 3835 586 Qwest
5668 657 176 23 CenturyTel Internet Holdings,
3356 618 10812 353 Level 3 Communications, LLC
6517 589 165 34 Yipes Communications, Inc.
852 579 1096 363 Telus Advanced Communications
15270 574 160 38 PaeTec.net -a division of Pae
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 494 1923 396 UUNET - Commercial IP service
24863 367 57 40 LINKdotNET AS number
9116 351 168 26 Goldenlines main autonomous s
3301 317 1457 296 TeliaNet Sweden
3320 315 6035 262 Deutsche Telekom AG
6746 289 130 265 Dynamic Network Technologies,
680 267 2045 257 DFN-IP service G-WiN
8551 264 252 37 Bezeq International
8708 262 420 241 Romania Data Systems S.A.
3215 258 2424 98 France Telecom Transpac
8220 256 444 239 COLT Telecommunications
3352 227 1865 38 Ibernet, Internet Access Netw
5089 224 1658 54 NTL Group Limited
3269 223 2839 73 TELECOM ITALIA
9121 214 1441 24 TTnet Autonomous System
3292 196 1379 176 TDC Tele Danmark
12479 195 578 6 Uni2 Autonomous System
1257 192 1195 170 SWIPnet Swedish IP Network
3300 192 172 92 AUCS Communications Services
20858 186 34 3 EgyNet
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 903 1970 214 UniNet S.A. de C.V.
11830 514 299 9 Instituto Costarricense de El
16814 426 26 9 NSS, S.A.
11172 374 114 60 Servicios Alestra S.A de C.V
7303 343 163 49 Telecom Argentina Stet-France
6471 330 75 33 ENTEL CHILE S.A.
14522 329 28 7 SatNet S.A.
22047 317 246 13 VTR PUNTO NET S.A.
14117 281 19 15 Telefonica del Sur S.A.
10481 278 104 9 Prima S.A.
11664 275 30 13 Keytech SA
10620 235 65 22 TVCABLE BOGOTA
11556 235 128 3 Cable-Wireless Panama
6147 228 178 24 Telefonica Del Peru
6503 201 170 82 AVANTEL, S.A.
23216 197 17 46 RAMtelecom Telecomunicaciones
20299 180 25 31 NEWCOM AMERICAS
8163 177 11 6 METROTEL REDES S.A.
21826 171 30 58 INTERCABLE
7738 169 506 23 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 285 870 226 The Internet Solution
8452 219 188 7 TEDATA
6713 142 135 11 Itissalat Al-MAGHRIB
2018 140 301 115 Tertiary Education Network
5536 124 8 10 Internet Egypt Network
33783 121 8 16 EEPAD TISP TELECOM & INTERNET
33776 100 6 3 Starcomms Nigeria Limited
24835 87 48 6 RAYA Telecom - Egypt
15475 76 84 4 Nile Online
2905 74 174 71 The Internetworking Company o
23889 69 24 15 MAURITIUS TELECOM
2561 62 6 2 Egyptian Universities Network
15706 56 12 4 Sudatel Internet Exchange Aut
33774 47 29 25 AS Number for Telecom Algeria
5713 46 294 36 Telkom SA Ltd
16637 42 21 29 Johnnic e-Ventures
8524 31 2 10 AUCEGYPT Autonomous System
21280 29 4 4 Swift Global Kenya Ltd.Is an
10798 27 16 1 Standard Bank of South Africa
12455 27 6 3 Jambonet Autonomous system
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1354 1284 Videsh Sanchar Nigam Ltd. Aut
11492 1145 1130 Cable One
18566 1023 1014 Covad Communications
6478 1133 970 AT&T Worldnet Services
4323 1316 946 Time Warner Telecom
9498 1001 937 BHARTI BT INTERNET LTD.
4134 1075 783 CHINANET-BACKBONE
17488 796 741 Hathway IP Over Cable Interne
22773 766 716 Cox Communications, Inc.
9583 1123 706 Sify Limited
8151 903 689 UniNet S.A. de C.V.
5668 657 634 CenturyTel Internet Holdings,
7545 724 603 TPG Internet Pty Ltd
19262 774 591 Verizon Global Networks
6517 589 555 Yipes Communications, Inc.
18101 596 546 Reliance Infocom Ltd Internet
15270 574 536 PaeTec.net -a division of Pae
6197 1032 523 BellSouth Network Solutions,
19916 568 517 OLM LLC
4668 516 506 LG-EDS Systems Inc.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
43633 UNALLOCATED 91.195.90.0/23 35602 ZOL network communic
43139 UNALLOCATED 91.196.148.0/22 13307 RIPE Network Coordin
43553 UNALLOCATED 91.197.120.0/22 6849 JSC UKRTELECOM,
64586 PRIVATE 192.170.73.0/24 4845 Chung Hsiao East Roa
43410 UNALLOCATED 193.39.249.0/24 8402 Corbina telecom
41243 UNALLOCATED 195.74.66.0/24 3301 TeliaNet Sweden
65535 PRIVATE 200.62.98.0/24 7137 TELEMATIX/ ENITEL
64586 PRIVATE 202.165.137.0/24 4845 Chung Hsiao East Roa
64586 PRIVATE 202.165.140.0/24 4845 Chung Hsiao East Roa
64586 PRIVATE 202.165.141.0/24 4845 Chung Hsiao East Roa
64586 PRIVATE 202.165.142.0/24 4845 Chung Hsiao East Roa
64586 PRIVATE 202.165.143.0/24 4845 Chung Hsiao East Roa
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
7.1.1.0/24 1239 Sprint
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 /8:18 /9:9 /10:15 /11:37 /12:134
/13:261 /14:471 /15:922 /16:9611 /17:4064 /18:6598
/19:13946 /20:16220 /21:14922 /22:19195 /23:20105 /24:121351
/25:770 /26:1033 /27:508 /28:86 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1137 1145 Cable One
6478 1132 1133 AT&T Worldnet Services
18566 1005 1023 Covad Communications
9583 965 1123 Sify Limited
2386 903 1212 AT&T Data Communications Serv
7011 814 921 Citizens Utilities
7018 813 1472 AT&T WorldNet Services
6197 785 1032 BellSouth Network Solutions,
23577 778 787 Korea Telecom (ATM-MPLS)
4755 739 1354 Videsh Sanchar Nigam Ltd. Aut
9498 673 1001 BHARTI BT INTERNET LTD.
17488 619 796 Hathway IP Over Cable Interne
4766 607 809 Korea Telecom (KIX)
19916 563 568 OLM LLC
6517 555 589 Yipes Communications, Inc.
4323 551 1316 Time Warner Telecom
15270 538 574 PaeTec.net -a division of Pae
5668 523 657 CenturyTel Internet Holdings,
4668 506 516 LG-EDS Systems Inc.
18101 502 596 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:87 12:1802 13:1 15:19
16:3 17:3 18:13 20:36 24:967 25:1
32:56 33:3 38:347 40:60 41:317 44:2
47:4 52:4 55:3 56:3 57:24 58:473
59:392 60:367 61:1013 62:930 63:2013 64:3190
65:2369 66:3412 67:795 68:659 69:1975 70:444
71:105 72:1411 73:1 74:645 75:259 76:131
77:340 78:54 80:830 81:828 82:573 83:363
84:615 85:806 86:340 87:483 88:278 89:992
90:24 91:536 97:6 98:2 116:314 117:181
118:17 121:279 122:605 123:176 124:672 125:988
128:270 129:214 130:139 131:364 132:55 133:9
134:197 135:34 136:189 137:82 138:147 139:73
140:502 141:174 142:383 143:255 144:300 145:46
146:327 147:125 148:410 149:148 150:111 151:159
152:87 153:119 154:3 155:263 156:161 157:218
158:157 159:173 160:116 161:95 162:175 163:181
164:480 165:393 166:275 167:300 168:514 169:122
170:387 171:22 172:2 189:74 190:1074 192:5734
193:3981 194:3185 195:2284 196:974 198:3817 199:3217
200:5278 201:1190 202:7336 203:7698 204:3925 205:1965
206:2414 207:2888 208:2821 209:3492 210:2461 211:1086
212:1329 213:1475 214:416 215:41 216:3989 217:1191
218:329 219:382 220:1023 221:410 222:266
End of report
