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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 10 Aug, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/08/10/0400
Analysis Summary
----------------
BGP routing table entries examined: 227819
Prefixes after maximum aggregation: 119436
Deaggregation factor: 1.91
Unique aggregates announced to Internet: 110832
Total ASes present in the Internet Routing Table: 25909
Prefixes per ASN: 8.79
Origin-only ASes present in the Internet Routing Table: 22581
Origin ASes announcing only one prefix: 11038
Transit ASes present in the Internet Routing Table: 3328
Transit-only ASes present in the Internet Routing Table: 73
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 21
Max AS path prepend of ASN (35389) 16
Prefixes from unregistered ASNs in the Routing Table: 7
Unregistered ASNs in the Routing Table: 3
Prefixes from 32-bit ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1749067744
Equivalent to 104 /8s, 64 /16s and 167 /24s
Percentage of available address space announced: 47.2
Percentage of allocated address space announced: 61.8
Percentage of available address space allocated: 76.4
Total number of prefixes smaller than registry allocations: 120284
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 53289
Total APNIC prefixes after maximum aggregation: 20729
APNIC Deaggregation factor: 2.57
Prefixes being announced from the APNIC address blocks: 50235
Unique aggregates announced from the APNIC address blocks: 22117
APNIC Region origin ASes present in the Internet Routing Table: 3027
APNIC Prefixes per ASN: 16.60
APNIC Region origin ASes announcing only one prefix: 820
APNIC Region transit ASes present in the Internet Routing Table: 460
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 311091104
Equivalent to 18 /8s, 138 /16s and 223 /24s
Percentage of available APNIC address space announced: 77.1
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: 107744
Total ARIN prefixes after maximum aggregation: 62556
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 79299
Unique aggregates announced from the ARIN address blocks: 31639
ARIN Region origin ASes present in the Internet Routing Table: 11730
ARIN Prefixes per ASN: 6.76
ARIN Region origin ASes announcing only one prefix: 4527
ARIN Region transit ASes present in the Internet Routing Table: 1066
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 14
Number of ARIN addresses announced to Internet: 341811968
Equivalent to 20 /8s, 95 /16s and 163 /24s
Percentage of available ARIN address space announced: 75.5
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: 47938
Total RIPE prefixes after maximum aggregation: 30719
RIPE Deaggregation factor: 1.56
Prefixes being announced from the RIPE address blocks: 44292
Unique aggregates announced from the RIPE address blocks: 29125
RIPE Region origin ASes present in the Internet Routing Table: 10034
RIPE Prefixes per ASN: 4.41
RIPE Region origin ASes announcing only one prefix: 5353
RIPE Region transit ASes present in the Internet Routing Table: 1594
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 323721856
Equivalent to 19 /8s, 75 /16s and 154 /24s
Percentage of available RIPE address space announced: 74.2
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, 80/4, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 16144
Total LACNIC prefixes after maximum aggregation: 4378
LACNIC Deaggregation factor: 3.69
Prefixes being announced from the LACNIC address blocks: 14193
Unique aggregates announced from the LACNIC address blocks: 7846
LACNIC Region origin ASes present in the Internet Routing Table: 841
LACNIC Prefixes per ASN: 16.88
LACNIC Region origin ASes announcing only one prefix: 273
LACNIC Region transit ASes present in the Internet Routing Table: 143
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 41695488
Equivalent to 2 /8s, 124 /16s and 57 /24s
Percentage of available LACNIC address space announced: 62.1
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: 2694
Total AfriNIC prefixes after maximum aggregation: 1044
AfriNIC Deaggregation factor: 2.58
Prefixes being announced from the AfriNIC address blocks: 2225
Unique aggregates announced from the AfriNIC address blocks: 1355
AfriNIC Region origin ASes present in the Internet Routing Table: 203
AfriNIC Prefixes per ASN: 10.96
AfriNIC Region origin ASes announcing only one prefix: 65
AfriNIC Region transit ASes present in the Internet Routing Table: 33
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 6328064
Equivalent to 0 /8s, 96 /16s and 143 /24s
Percentage of available AfriNIC address space announced: 18.9
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 1328 11126 287 CHINANET-BACKBONE
4755 1316 382 71 Videsh Sanchar Nigam Ltd. Aut
9583 1123 80 402 Sify Limited
9498 993 532 69 BHARTI BT INTERNET LTD.
4766 801 5442 316 Korea Telecom (KIX)
23577 788 34 684 Korea Telecom (ATM-MPLS)
17488 741 48 60 Hathway IP Over Cable Interne
7545 700 150 117 TPG Internet Pty Ltd
18101 580 117 39 Reliance Infocom Ltd Internet
1221 549 1951 427 Telstra Pty Ltd
4812 529 915 95 China Telecom (Shanghai)
4668 512 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
4808 478 768 110 CNCGROUP IP network: China169
9443 473 122 77 Primus Telecommunications
4802 420 112 153 Wantree Development
7474 399 217 272 SingTel Optus Pty Ltd
17974 362 130 13 PT TELEKOMUNIKASI INDONESIA
4837 352 4944 164 chinanet IDC center beijing n
9829 351 258 14 BSNL National Internet Backbo
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1477 6075 998 AT&T WorldNet Services
4323 1327 1021 371 Time Warner Telecom
2386 1203 614 740 AT&T Data Communications Serv
6478 1113 321 131 AT&T Worldnet Services
11492 1110 109 20 Cable One
6197 1028 717 509 BellSouth Network Solutions,
18566 1018 288 9 Covad Communications
174 966 6777 856 Cogent Communications
701 945 6563 720 UUNET Technologies, Inc.
7011 905 259 545 Citizens Utilities
20115 807 742 431 Charter Communications
1239 805 2741 572 Sprint
19262 766 2721 185 Verizon Global Networks
22773 753 2148 49 Cox Communications, Inc.
209 745 3869 590 Qwest
5668 629 171 23 CenturyTel Internet Holdings,
6517 583 161 37 Yipes Communications, Inc.
855 576 254 73 Canadian Research Network
852 574 1093 365 Telus Advanced Communications
6198 569 613 259 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2119 515 1075 138 Telenor Internet Access
702 503 1922 404 UUNET - Commercial IP service
24863 362 57 41 LINKdotNET AS number
9116 357 168 26 Goldenlines main autonomous s
3301 313 1456 293 TeliaNet Sweden
3320 313 6035 259 Deutsche Telekom AG
6746 287 130 263 Dynamic Network Technologies,
5089 268 1658 53 NTL Group Limited
680 265 2060 256 DFN-IP service G-WiN
8220 261 446 244 COLT Telecommunications
3215 256 2392 97 France Telecom Transpac
8708 252 420 241 Romania Data Systems S.A.
8551 231 228 27 Bezeq International
3352 224 1864 41 Ibernet, Internet Access Netw
3269 221 2775 73 TELECOM ITALIA
9121 210 1441 24 TTnet Autonomous System
3292 195 1379 175 TDC Tele Danmark
1257 194 1195 172 SWIPnet Swedish IP Network
12479 192 578 6 Uni2 Autonomous System
3300 188 172 91 AUCS Communications Services
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 914 1958 208 UniNet S.A. de C.V.
11830 483 299 9 Instituto Costarricense de El
16814 426 26 9 NSS, S.A.
11172 377 116 63 Servicios Alestra S.A de C.V
14522 334 28 7 SatNet S.A.
7303 326 154 43 Telecom Argentina Stet-France
22047 318 246 13 VTR PUNTO NET S.A.
6471 315 75 31 ENTEL CHILE S.A.
14117 281 19 15 Telefonica del Sur S.A.
10481 261 104 9 Prima S.A.
11556 229 128 3 Cable-Wireless Panama
6147 226 176 27 Telefonica Del Peru
10620 217 61 26 TVCABLE BOGOTA
6503 202 172 85 AVANTEL, S.A.
23216 195 16 43 RAMtelecom Telecomunicaciones
8163 177 11 6 METROTEL REDES S.A.
20299 164 24 22 NEWCOM AMERICAS
19169 162 10 24 Telconet
21826 161 28 60 INTERCABLE
7738 159 506 23 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 282 867 223 The Internet Solution
8452 229 188 7 TEDATA
6713 142 135 11 Itissalat Al-MAGHRIB
2018 141 301 115 Tertiary Education Network
33783 125 8 11 EEPAD TISP TELECOM & INTERNET
5536 124 8 10 Internet Egypt Network
33776 94 6 11 Starcomms Nigeria Limited
24835 87 48 6 RAYA Telecom - Egypt
15475 78 84 4 Nile Online
2905 75 174 72 The Internetworking Company o
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 46 29 24 AS Number for Telecom Algeria
16637 42 21 29 Johnnic e-Ventures
8524 31 2 10 AUCEGYPT Autonomous System
12455 30 6 3 Jambonet Autonomous system
21280 27 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 1316 1245 Videsh Sanchar Nigam Ltd. Aut
11492 1110 1090 Cable One
4134 1328 1041 CHINANET-BACKBONE
18566 1018 1009 Covad Communications
6478 1113 982 AT&T Worldnet Services
4323 1327 956 Time Warner Telecom
9498 993 924 BHARTI BT INTERNET LTD.
9583 1123 721 Sify Limited
8151 914 706 UniNet S.A. de C.V.
22773 753 704 Cox Communications, Inc.
17488 741 681 Hathway IP Over Cable Interne
5668 629 606 CenturyTel Internet Holdings,
7545 700 583 TPG Internet Pty Ltd
19262 766 581 Verizon Global Networks
6517 583 546 Yipes Communications, Inc.
18101 580 541 Reliance Infocom Ltd Internet
15270 566 528 PaeTec.net -a division of Pae
6197 1028 519 BellSouth Network Solutions,
19916 568 517 OLM LLC
855 576 503 Canadian Research Network
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
64513 PRIVATE 63.171.234.0/26 1803 SPRINT
64513 PRIVATE 63.171.234.64/26 1803 SPRINT
64513 PRIVATE 63.171.234.128/26 1803 SPRINT
64513 PRIVATE 63.171.234.192/26 1803 SPRINT
38347 UNALLOCATED 116.212.160.0/21 9389 BEIJING SHENZHOU GRE
38347 UNALLOCATED 116.212.168.0/21 9389 BEIJING SHENZHOU GRE
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 /11:36 /12:132
/13:258 /14:471 /15:909 /16:9574 /17:4040 /18:6525
/19:13859 /20:16107 /21:14667 /22:19029 /23:19952 /24:119849
/25:770 /26:1019 /27:489 /28:78 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1112 1113 AT&T Worldnet Services
11492 1101 1110 Cable One
18566 1000 1018 Covad Communications
9583 965 1123 Sify Limited
2386 897 1203 AT&T Data Communications Serv
7018 813 1477 AT&T WorldNet Services
7011 803 905 Citizens Utilities
6197 782 1028 BellSouth Network Solutions,
23577 779 788 Korea Telecom (ATM-MPLS)
4755 707 1316 Videsh Sanchar Nigam Ltd. Aut
9498 662 993 BHARTI BT INTERNET LTD.
4766 596 801 Korea Telecom (KIX)
17488 564 741 Hathway IP Over Cable Interne
19916 563 568 OLM LLC
4323 557 1327 Time Warner Telecom
6517 548 583 Yipes Communications, Inc.
15270 530 566 PaeTec.net -a division of Pae
4668 502 512 LG-EDS Systems Inc.
5668 495 629 CenturyTel Internet Holdings,
18101 494 580 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:85 12:1796 15:19 16:3
17:3 18:12 20:37 24:929 25:1 32:57
33:3 38:344 40:60 41:293 44:2 47:4
52:4 55:3 56:3 57:25 58:468 59:387
60:342 61:989 62:918 63:1989 64:3142 65:2338
66:3316 67:753 68:620 69:1924 70:445 71:104
72:1375 73:2 74:613 75:254 76:97 77:277
78:32 80:831 81:824 82:669 83:371 84:608
85:849 86:338 87:454 88:276 89:952 90:22
91:457 97:6 116:272 117:121 121:254 122:572
123:149 124:841 125:978 128:292 129:212 130:140
131:363 132:55 133:9 134:199 135:34 136:188
137:80 138:149 139:71 140:496 141:172 142:379
143:254 144:300 145:46 146:325 147:120 148:405
149:142 150:117 151:159 152:90 153:122 154:3
155:261 156:156 157:212 158:158 159:164 160:108
161:93 162:185 163:180 164:471 165:393 166:271
167:295 168:507 169:120 170:411 171:22 172:1
189:70 190:930 192:5752 193:3964 194:3176 195:2270
196:973 198:3812 199:3269 200:5078 201:1151 202:7385
203:7588 204:3944 205:1973 206:2417 207:2818 208:2757
209:3515 210:2430 211:971 212:1284 213:1457 214:419
215:41 216:3968 217:1153 218:351 219:383 220:1020
221:412 222:267
End of report
