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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 22 Jul, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/07/22/0400
Analysis Summary
----------------
BGP routing table entries examined: 226136
Prefixes after maximum aggregation: 118910
Deaggregation factor: 1.90
Unique aggregates announced to Internet: 110017
Total ASes present in the Internet Routing Table: 25727
Prefixes per ASN: 8.79
Origin-only ASes present in the Internet Routing Table: 22432
Origin ASes announcing only one prefix: 10922
Transit ASes present in the Internet Routing Table: 3295
Transit-only ASes present in the Internet Routing Table: 75
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 22
Max AS path prepend of ASN (35389) 16
Prefixes from unregistered ASNs in the Routing Table: 18
Unregistered ASNs in the Routing Table: 20
Prefixes from 32-bit ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1738907488
Equivalent to 103 /8s, 165 /16s and 159 /24s
Percentage of available address space announced: 46.9
Percentage of allocated address space announced: 62.2
Percentage of available address space allocated: 75.5
Total number of prefixes smaller than registry allocations: 119097
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 53027
Total APNIC prefixes after maximum aggregation: 20701
APNIC Deaggregation factor: 2.56
Prefixes being announced from the APNIC address blocks: 49971
Unique aggregates announced from the APNIC address blocks: 22034
APNIC Region origin ASes present in the Internet Routing Table: 3014
APNIC Prefixes per ASN: 16.58
APNIC Region origin ASes announcing only one prefix: 803
APNIC Region transit ASes present in the Internet Routing Table: 457
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 305000608
Equivalent to 18 /8s, 45 /16s and 240 /24s
Percentage of available APNIC address space announced: 75.6
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: 107400
Total ARIN prefixes after maximum aggregation: 62358
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 79069
Unique aggregates announced from the ARIN address blocks: 31358
ARIN Region origin ASes present in the Internet Routing Table: 11680
ARIN Prefixes per ASN: 6.77
ARIN Region origin ASes announcing only one prefix: 4501
ARIN Region transit ASes present in the Internet Routing Table: 1067
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 339576064
Equivalent to 20 /8s, 61 /16s and 133 /24s
Percentage of available ARIN address space announced: 75.0
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: 47513
Total RIPE prefixes after maximum aggregation: 30519
RIPE Deaggregation factor: 1.56
Prefixes being announced from the RIPE address blocks: 43871
Unique aggregates announced from the RIPE address blocks: 28947
RIPE Region origin ASes present in the Internet Routing Table: 9929
RIPE Prefixes per ASN: 4.42
RIPE Region origin ASes announcing only one prefix: 5287
RIPE Region transit ASes present in the Internet Routing Table: 1565
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 322759040
Equivalent to 19 /8s, 60 /16s and 233 /24s
Percentage of available RIPE address space announced: 80.2
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
40960-44031
RIPE Address Blocks 62/8, 77/8, 78/7, 80/5, 88/6, 92/7, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 15603
Total LACNIC prefixes after maximum aggregation: 4297
LACNIC Deaggregation factor: 3.63
Prefixes being announced from the LACNIC address blocks: 13635
Unique aggregates announced from the LACNIC address blocks: 7735
LACNIC Region origin ASes present in the Internet Routing Table: 830
LACNIC Prefixes per ASN: 16.43
LACNIC Region origin ASes announcing only one prefix: 270
LACNIC Region transit ASes present in the Internet Routing Table: 137
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 40736768
Equivalent to 2 /8s, 109 /16s and 152 /24s
Percentage of available LACNIC address space announced: 60.7
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: 2585
Total AfriNIC prefixes after maximum aggregation: 1027
AfriNIC Deaggregation factor: 2.52
Prefixes being announced from the AfriNIC address blocks: 2110
Unique aggregates announced from the AfriNIC address blocks: 1273
AfriNIC Region origin ASes present in the Internet Routing Table: 198
AfriNIC Prefixes per ASN: 10.66
AfriNIC Region origin ASes announcing only one prefix: 61
AfriNIC Region transit ASes present in the Internet Routing Table: 35
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 6360576
Equivalent to 0 /8s, 97 /16s and 14 /24s
Percentage of available AfriNIC address space announced: 19.0
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
4134 1362 10842 286 CHINANET-BACKBONE
4755 1277 382 70 Videsh Sanchar Nigam Ltd. Aut
9583 1116 80 400 Sify Limited
9498 976 533 70 BHARTI BT INTERNET LTD.
23577 796 34 691 Korea Telecom (ATM-MPLS)
4766 786 4929 314 Korea Telecom (KIX)
17488 727 47 56 Hathway IP Over Cable Interne
7545 693 150 113 TPG Internet Pty Ltd
18101 573 117 41 Reliance Infocom Ltd Internet
1221 547 1951 425 Telstra Pty Ltd
4812 527 913 95 China Telecom (Shanghai)
4668 512 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
9443 472 122 77 Primus Telecommunications
7474 412 218 270 SingTel Optus Pty Ltd
4802 411 105 151 Wantree Development
17974 373 130 13 PT TELEKOMUNIKASI INDONESIA
9829 362 258 14 BSNL National Internet Backbo
4808 360 669 120 CNCGROUP IP network: China169
4837 351 4944 164 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1464 6074 990 AT&T WorldNet Services
4323 1320 1021 374 Time Warner Telecom
2386 1209 633 754 AT&T Data Communications Serv
6478 1117 316 157 AT&T Worldnet Services
11492 1102 107 24 Cable One
6197 1025 717 508 BellSouth Network Solutions,
18566 1015 288 9 Covad Communications
174 963 6778 853 Cogent Communications
701 945 6563 721 UUNET Technologies, Inc.
7011 896 257 544 Citizens Utilities
1239 813 2741 585 Sprint
20115 801 735 429 Charter Communications
19262 762 2759 187 Verizon Global Networks
209 759 3879 594 Qwest
22773 745 1893 50 Cox Communications, Inc.
5668 619 169 21 CenturyTel Internet Holdings,
7029 585 488 79 Alltel Information Services,
855 574 254 73 Canadian Research Network
852 571 1093 362 Telus Advanced Communications
6517 568 159 37 Yipes Communications, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2119 513 1075 136 Telenor Internet Access
702 503 1921 404 UUNET - Commercial IP service
24863 359 56 41 LINKdotNET AS number
9116 317 168 25 Goldenlines main autonomous s
3301 312 1456 292 TeliaNet Sweden
3320 309 6034 256 Deutsche Telekom AG
6746 282 129 258 Dynamic Network Technologies,
5089 268 1658 53 NTL Group Limited
680 265 2045 256 DFN-IP service G-WiN
8220 257 445 241 COLT Telecommunications
3215 255 2376 96 France Telecom Transpac
8708 250 420 239 Romania Data Systems S.A.
8551 223 213 28 Bezeq International
3269 222 2775 74 TELECOM ITALIA
3352 220 1864 41 Ibernet, Internet Access Netw
9121 210 1441 24 TTnet Autonomous System
1257 194 1195 172 SWIPnet Swedish IP Network
3292 194 1379 174 TDC Tele Danmark
12479 190 578 6 Uni2 Autonomous System
3246 185 253 176 Song Networks
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 863 1926 205 UniNet S.A. de C.V.
11830 483 299 9 Instituto Costarricense de El
11172 374 116 63 Servicios Alestra S.A de C.V
16814 361 22 8 NSS, S.A.
22047 318 246 13 VTR PUNTO NET S.A.
6471 308 74 33 ENTEL CHILE S.A.
7303 305 148 34 Telecom Argentina Stet-France
14117 279 19 15 Telefonica del Sur S.A.
11556 229 128 3 Cable-Wireless Panama
6147 225 174 26 Telefonica Del Peru
10620 214 60 18 TVCABLE BOGOTA
6503 208 172 85 AVANTEL, S.A.
23216 196 16 43 RAMtelecom Telecomunicaciones
10481 181 72 8 Prima S.A.
14522 177 28 7 SatNet S.A.
8163 176 11 9 METROTEL REDES S.A.
7738 158 506 23 Telecomunicacoes da Bahia S.A
20299 157 23 13 NEWCOM AMERICAS
21826 157 27 60 INTERCABLE
19169 156 10 22 Telconet
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 281 867 222 The Internet Solution
8452 226 188 7 TEDATA
6713 142 135 11 Itissalat Al-MAGHRIB
2018 138 301 115 Tertiary Education Network
5536 124 8 10 Internet Egypt Network
33783 122 8 11 EEPAD TISP TELECOM & INTERNET
24835 86 48 6 RAYA Telecom - Egypt
2905 75 174 72 The Internetworking Company o
15475 75 84 4 Nile Online
2561 62 6 2 Egyptian Universities Network
15706 56 12 4 Sudatel Internet Exchange Aut
23889 52 24 15 MAURITIUS TELECOM
5713 46 294 36 Telkom SA Ltd
33774 45 29 24 AS Number for Telecom Algeria
16637 37 21 29 Johnnic e-Ventures
33776 35 2 6 Starcomms Nigeria Limited
8524 32 2 8 AUCEGYPT Autonomous System
12455 30 6 3 Jambonet Autonomous system
21280 29 4 4 Swift Global Kenya Ltd.Is an
10798 24 2 15 Standard Bank of South Africa
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1277 1207 Videsh Sanchar Nigam Ltd. Aut
11492 1102 1078 Cable One
4134 1362 1076 CHINANET-BACKBONE
18566 1015 1006 Covad Communications
6478 1117 960 AT&T Worldnet Services
4323 1320 946 Time Warner Telecom
9498 976 906 BHARTI BT INTERNET LTD.
9583 1116 716 Sify Limited
22773 745 695 Cox Communications, Inc.
17488 727 671 Hathway IP Over Cable Interne
8151 863 658 UniNet S.A. de C.V.
5668 619 598 CenturyTel Internet Holdings,
7545 693 580 TPG Internet Pty Ltd
19262 762 575 Verizon Global Networks
18101 573 532 Reliance Infocom Ltd Internet
6517 568 531 Yipes Communications, Inc.
15270 557 520 PaeTec.net -a division of Pae
6197 1025 517 BellSouth Network Solutions,
19916 568 517 OLM LLC
7029 585 506 Alltel Information Services,
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65000 PRIVATE 41.204.180.0/24 36866 Jamii Telecommunicat
65332 PRIVATE 63.166.106.192/27 1803 SPRINT
43185 UNALLOCATED 77.95.208.0/21 12779 ITGATE.Net
43314 UNALLOCATED 78.109.128.0/20 21127 JSC Zap-Sib TransTel
43157 UNALLOCATED 83.143.224.0/21 174 Cogent Communication
43067 UNALLOCATED 91.196.80.0/22 31305 Kriviy Rih City netw
43319 UNALLOCATED 91.197.8.0/22 12452 VSTN AS
43348 UNALLOCATED 91.197.24.0/22 29632 The NetAssist autono
43359 UNALLOCATED 91.197.36.0/22 25441 Irish Broadband Inte
43164 UNALLOCATED 91.198.0.0/24 16016 VOLJATEL Autonomous
43212 UNALLOCATED 91.198.19.0/24 21294 SC Idilis S.A.
38347 UNALLOCATED 116.212.160.0/21 9389 BEIJING SHENZHOU GRE
38347 UNALLOCATED 116.212.168.0/21 9389 BEIJING SHENZHOU GRE
42752 UNALLOCATED 194.110.150.0/24 9121 TTnet Autonomous Sys
39094 UNALLOCATED 195.66.64.0/24 12578 LATTELEKOM-APOLLO
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
64516 PRIVATE 209.43.37.0/24 7332 IQuest Internet
22895 UNALLOCATED 216.174.38.0/24 19094 Adelphia Business So
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 /11:36 /12:129
/13:254 /14:468 /15:901 /16:9555 /17:4013 /18:6510
/19:13763 /20:16027 /21:14505 /22:18903 /23:19826 /24:118854
/25:777 /26:1005 /27:484 /28:71 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1116 1117 AT&T Worldnet Services
11492 1093 1102 Cable One
18566 997 1015 Covad Communications
9583 958 1116 Sify Limited
2386 901 1209 AT&T Data Communications Serv
7018 796 1464 AT&T WorldNet Services
7011 794 896 Citizens Utilities
23577 787 796 Korea Telecom (ATM-MPLS)
6197 779 1025 BellSouth Network Solutions,
4755 674 1277 Videsh Sanchar Nigam Ltd. Aut
9498 650 976 BHARTI BT INTERNET LTD.
4766 590 786 Korea Telecom (KIX)
19916 563 568 OLM LLC
4323 553 1320 Time Warner Telecom
17488 550 727 Hathway IP Over Cable Interne
6517 533 568 Yipes Communications, Inc.
15270 522 557 PaeTec.net -a division of Pae
4668 502 512 LG-EDS Systems Inc.
18101 485 573 Reliance Infocom Ltd Internet
5668 484 619 CenturyTel Internet Holdings,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:83 9:1 12:1800 15:19
16:3 17:3 18:11 20:37 24:937 25:1
32:50 33:3 38:333 40:60 41:214 44:2
47:4 52:4 55:3 56:3 57:25 58:474
59:381 60:335 61:990 62:865 63:1982 64:3139
65:2365 66:3298 67:744 68:626 69:1913 70:436
71:101 72:1354 73:2 74:578 75:253 76:80
77:286 78:19 80:823 81:804 82:670 83:376
84:541 85:860 86:342 87:457 88:287 89:928
90:8 91:425 97:6 98:3 116:247 117:62
121:240 122:580 123:129 124:880 125:949 128:288
129:223 130:139 131:358 132:54 133:9 134:194
135:38 136:187 137:81 138:156 139:72 140:493
141:173 142:373 143:235 144:297 145:45 146:324
147:119 148:402 149:141 150:113 151:161 152:90
153:126 154:2 155:256 156:157 157:213 158:158
159:165 160:103 161:93 162:209 163:180 164:461
165:399 166:287 167:289 168:508 169:117 170:413
171:23 172:1 189:63 190:749 192:5729 193:3916
194:3162 195:2237 196:958 198:3784 199:3272 200:4957
201:1105 202:7379 203:7553 204:3953 205:2014 206:2414
207:2821 208:2711 209:3486 210:2430 211:969 212:1306
213:1480 214:413 215:41 216:4005 217:1159 218:360
219:384 220:1004 221:407 222:265
End of report
