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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 13 Jun, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/06/13/0400
Analysis Summary
----------------
BGP routing table entries examined: 222836
Prefixes after maximum aggregation: 118090
Deaggregation factor: 1.89
Unique aggregates announced to Internet: 108347
Total ASes present in the Internet Routing Table: 25416
Prefixes per ASN: 8.77
Origin-only ASes present in the Internet Routing Table: 22117
Origin ASes announcing only one prefix: 10747
Transit ASes present in the Internet Routing Table: 3299
Transit-only ASes present in the Internet Routing Table: 79
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: 5
Unregistered ASNs in the Routing Table: 7
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: 12
Number of addresses announced to Internet: 1737380192
Equivalent to 103 /8s, 142 /16s and 81 /24s
Percentage of available address space announced: 46.9
Percentage of allocated address space announced: 62.1
Percentage of available address space allocated: 75.5
Total number of prefixes smaller than registry allocations: 116840
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 52126
Total APNIC prefixes after maximum aggregation: 20450
APNIC Deaggregation factor: 2.55
Prefixes being announced from the APNIC address blocks: 49067
Unique aggregates announced from the APNIC address blocks: 21541
APNIC Region origin ASes present in the Internet Routing Table: 2970
APNIC Prefixes per ASN: 16.52
APNIC Region origin ASes announcing only one prefix: 795
APNIC Region transit ASes present in the Internet Routing Table: 453
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 299606432
Equivalent to 17 /8s, 219 /16s and 161 /24s
Percentage of available APNIC address space announced: 74.2
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: 106385
Total ARIN prefixes after maximum aggregation: 62017
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 78255
Unique aggregates announced from the ARIN address blocks: 30954
ARIN Region origin ASes present in the Internet Routing Table: 11616
ARIN Prefixes per ASN: 6.74
ARIN Region origin ASes announcing only one prefix: 4466
ARIN Region transit ASes present in the Internet Routing Table: 1064
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 335504768
Equivalent to 19 /8s, 255 /16s and 101 /24s
Percentage of available ARIN address space announced: 74.1
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: 46619
Total RIPE prefixes after maximum aggregation: 30393
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 43153
Unique aggregates announced from the RIPE address blocks: 28595
RIPE Region origin ASes present in the Internet Routing Table: 9757
RIPE Prefixes per ASN: 4.42
RIPE Region origin ASes announcing only one prefix: 5169
RIPE Region transit ASes present in the Internet Routing Table: 1570
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 315025920
Equivalent to 18 /8s, 198 /16s and 234 /24s
Percentage of available RIPE address space announced: 78.2
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: 15096
Total LACNIC prefixes after maximum aggregation: 4209
LACNIC Deaggregation factor: 3.59
Prefixes being announced from the LACNIC address blocks: 13151
Unique aggregates announced from the LACNIC address blocks: 7375
LACNIC Region origin ASes present in the Internet Routing Table: 803
LACNIC Prefixes per ASN: 16.38
LACNIC Region origin ASes announcing only one prefix: 260
LACNIC Region transit ASes present in the Internet Routing Table: 140
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 39346432
Equivalent to 2 /8s, 88 /16s and 97 /24s
Percentage of available LACNIC address space announced: 58.6
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: 2601
Total AfriNIC prefixes after maximum aggregation: 1011
AfriNIC Deaggregation factor: 2.57
Prefixes being announced from the AfriNIC address blocks: 1977
Unique aggregates announced from the AfriNIC address blocks: 1201
AfriNIC Region origin ASes present in the Internet Routing Table: 190
AfriNIC Prefixes per ASN: 10.41
AfriNIC Region origin ASes announcing only one prefix: 57
AfriNIC Region transit ASes present in the Internet Routing Table: 38
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 6221568
Equivalent to 0 /8s, 94 /16s and 239 /24s
Percentage of available AfriNIC address space announced: 18.5
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 1290 9977 280 CHINANET-BACKBONE
4755 1228 382 71 Videsh Sanchar Nigam Ltd. Aut
9583 1097 79 394 Sify Limited
9498 1000 469 68 BHARTI BT INTERNET LTD.
4766 786 4943 312 Korea Telecom (KIX)
23577 779 35 706 Korea Telecom (ATM-MPLS)
17488 703 46 41 Hathway IP Over Cable Interne
7545 634 143 81 TPG Internet Pty Ltd
18101 558 117 35 Reliance Infocom Ltd Internet
1221 549 1954 424 Telstra Pty Ltd
4668 508 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
4812 465 843 80 China Telecom (Shanghai)
9443 465 121 77 Primus Telecommunications
7474 410 218 269 SingTel Optus Pty Ltd
4802 408 86 147 Wantree Development
9829 363 258 15 BSNL National Internet Backbo
2907 360 1700 301 SINET Japan
17557 358 41 172 Pakistan Telecom
4837 351 4941 165 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1467 6111 969 AT&T WorldNet Services
4323 1267 1033 365 Time Warner Telecom
2386 1147 597 757 AT&T Data Communications Serv
6478 1104 362 147 AT&T Worldnet Services
11492 1077 105 20 Cable One
6197 1025 707 508 BellSouth Network Solutions,
18566 1010 288 9 Covad Communications
701 959 6599 734 UUNET Technologies, Inc.
174 957 6780 867 Cogent Communications
7011 817 229 516 Citizens Utilities
1239 815 2731 577 Sprint
20115 800 726 429 Charter Communications
19262 776 2702 207 Verizon Global Networks
209 742 3834 578 Qwest
22773 719 1892 44 Cox Communications, Inc.
5668 604 160 17 CenturyTel Internet Holdings,
7029 597 488 80 Alltel Information Services,
852 589 1090 371 Telus Advanced Communications
855 574 253 71 Canadian Research Network
19916 568 49 51 OLM LLC
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 515 1938 406 UUNET - Commercial IP service
2119 507 918 379 Telenor Internet Access
24863 351 56 35 LINKdotNET AS number
3301 311 1455 290 TeliaNet Sweden
3320 307 6018 255 Deutsche Telekom AG
6746 280 129 256 Dynamic Network Technologies,
680 261 2044 252 DFN-IP service G-WiN
3215 249 2296 95 France Telecom Transpac
8220 247 443 239 COLT Telecommunications
8708 237 416 230 Romania Data Systems S.A.
5089 221 1658 53 NTL Group Limited
3269 218 2679 75 TELECOM ITALIA
3352 216 1864 37 Ibernet, Internet Access Netw
9121 209 1441 23 TTnet Autonomous System
8551 207 197 27 Bezeq International
9116 199 136 25 Goldenlines main autonomous s
1257 198 1196 176 SWIPnet Swedish IP Network
3246 197 331 187 Song Networks
12479 188 578 6 Uni2 Autonomous System
3300 181 171 88 AUCS Communications Services
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 830 1870 209 UniNet S.A. de C.V.
11830 483 299 19 Instituto Costarricense de El
11172 369 116 62 Servicios Alestra S.A de C.V
16814 361 22 8 NSS, S.A.
22047 316 238 12 VTR PUNTO NET S.A.
7303 294 143 30 Telecom Argentina Stet-France
6471 269 74 31 ENTEL CHILE S.A.
14117 255 19 15 Telefonica del Sur S.A.
11556 231 128 4 Cable-Wireless Panama
6147 223 168 25 Telefonica Del Peru
6503 211 188 84 AVANTEL, S.A.
10620 202 58 10 TVCABLE BOGOTA
20299 194 23 12 NEWCOM AMERICAS
10481 181 72 8 Prima S.A.
14522 167 27 8 SatNet S.A.
23216 167 19 42 RAMtelecom Telecomunicaciones
7910 157 11 30 ANDINET ON LINE
21826 157 27 59 INTERCABLE
19429 152 79 41 E.T.B.
7738 146 474 22 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 279 866 220 The Internet Solution
8452 228 188 7 TEDATA
15475 161 84 4 Nile Online
6713 142 135 11 Itissalat Al-MAGHRIB
2018 136 301 111 Tertiary Education Network
5536 122 8 18 Internet Egypt Network
33783 119 8 9 EEPAD TISP TELECOM & INTERNET
24835 85 48 6 RAYA Telecom - Egypt
2905 77 174 73 The Internetworking Company o
2561 61 6 2 Egyptian Universities Network
15706 56 12 4 Sudatel Internet Exchange Aut
23889 48 16 13 MAURITIUS TELECOM
5713 44 294 34 Telkom SA Ltd
33774 43 29 24 AS Number for Telecom Algeria
16637 37 21 29 Johnnic e-Ventures
8524 32 2 8 AUCEGYPT Autonomous System
33776 30 2 7 Starcomms Nigeria Limited
12455 28 6 3 Jambonet Autonomous system
21280 26 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 1228 1157 Videsh Sanchar Nigam Ltd. Aut
11492 1077 1057 Cable One
4134 1290 1010 CHINANET-BACKBONE
18566 1010 1001 Covad Communications
6478 1104 957 AT&T Worldnet Services
9498 1000 932 BHARTI BT INTERNET LTD.
4323 1267 902 Time Warner Telecom
9583 1097 703 Sify Limited
22773 719 675 Cox Communications, Inc.
17488 703 662 Hathway IP Over Cable Interne
8151 830 621 UniNet S.A. de C.V.
5668 604 587 CenturyTel Internet Holdings,
19262 776 569 Verizon Global Networks
7545 634 553 TPG Internet Pty Ltd
18101 558 523 Reliance Infocom Ltd Internet
6197 1025 517 BellSouth Network Solutions,
7029 597 517 Alltel Information Services,
19916 568 517 OLM LLC
15270 544 509 PaeTec.net -a division of Pae
855 574 503 Canadian Research Network
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65019 PRIVATE 63.138.117.0/24 19034 Norcom Networks Corp
65332 PRIVATE 63.166.106.192/27 1803 SPRINT
65001 PRIVATE 82.213.31.0/24 12975 PALTEL Autonomous Sy
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
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
94.110.196.0/24 21161 Bechtle Autonomous System
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 /10:15 /11:35 /12:126
/13:245 /14:460 /15:886 /16:9455 /17:4001 /18:6423
/19:13614 /20:15711 /21:14156 /22:18411 /23:19474 /24:117420
/25:811 /26:985 /27:477 /28:68 /29:10 /30:13
/31:0 /32:12
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1094 1104 AT&T Worldnet Services
11492 1068 1077 Cable One
18566 992 1010 Covad Communications
9583 938 1097 Sify Limited
2386 847 1147 AT&T Data Communications Serv
7018 786 1467 AT&T WorldNet Services
6197 778 1025 BellSouth Network Solutions,
23577 765 779 Korea Telecom (ATM-MPLS)
7011 720 817 Citizens Utilities
9498 669 1000 BHARTI BT INTERNET LTD.
4755 629 1228 Videsh Sanchar Nigam Ltd. Aut
4766 593 786 Korea Telecom (KIX)
19916 563 568 OLM LLC
17488 524 703 Hathway IP Over Cable Interne
4323 520 1267 Time Warner Telecom
15270 511 544 PaeTec.net -a division of Pae
4668 498 508 LG-EDS Systems Inc.
18101 474 558 Reliance Infocom Ltd Internet
855 472 574 Canadian Research Network
5668 469 604 CenturyTel Internet Holdings,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 7:1 8:82 9:1 12:1809 15:19
16:3 17:3 18:8 20:36 24:914 25:1
32:51 33:2 38:321 40:61 41:161 44:2
47:5 52:4 55:3 56:3 57:25 58:421
59:403 60:304 61:969 62:925 63:1973 64:3113
65:2349 66:3251 67:744 68:633 69:1874 70:429
71:112 72:1336 73:1 74:511 75:259 76:53
77:237 78:2 80:823 81:809 82:658 83:390
84:418 85:829 86:381 87:483 88:276 89:897
90:7 91:362 94:1 97:6 98:3 116:165
117:48 121:201 122:544 123:114 124:821 125:943
128:281 129:221 130:126 131:367 132:52 133:9
134:189 135:38 136:185 137:81 138:142 139:70
140:480 141:170 142:373 143:234 144:291 145:43
146:320 147:120 148:396 149:143 150:113 151:158
152:92 153:125 154:4 155:254 156:152 157:196
158:158 159:157 160:106 161:92 162:228 163:184
164:450 165:399 166:241 167:286 168:508 169:120
170:399 171:16 172:1 189:52 190:667 192:5774
193:3885 194:3143 195:2241 196:910 198:3754 199:3277
200:4878 201:1034 202:7378 203:7519 204:3967 205:2033
206:2351 207:2811 208:2616 209:3511 210:2466 211:966
212:1311 213:1471 214:416 215:40 216:4031 217:1162
218:356 219:383 220:977 221:407 222:261
End of report
