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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 12 Jun, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/06/12/0400
Analysis Summary
----------------
BGP routing table entries examined: 222986
Prefixes after maximum aggregation: 118391
Deaggregation factor: 1.88
Unique aggregates announced to Internet: 108232
Total ASes present in the Internet Routing Table: 25410
Prefixes per ASN: 8.78
Origin-only ASes present in the Internet Routing Table: 22115
Origin ASes announcing only one prefix: 10746
Transit ASes present in the Internet Routing Table: 3295
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: 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: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1736887904
Equivalent to 103 /8s, 134 /16s and 206 /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: 116985
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 51844
Total APNIC prefixes after maximum aggregation: 20428
APNIC Deaggregation factor: 2.54
Prefixes being announced from the APNIC address blocks: 48787
Unique aggregates announced from the APNIC address blocks: 21459
APNIC Region origin ASes present in the Internet Routing Table: 2967
APNIC Prefixes per ASN: 16.44
APNIC Region origin ASes announcing only one prefix: 795
APNIC Region transit ASes present in the Internet Routing Table: 450
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 299067552
Equivalent to 17 /8s, 211 /16s and 104 /24s
Percentage of available APNIC address space announced: 74.1
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: 106865
Total ARIN prefixes after maximum aggregation: 62358
ARIN Deaggregation factor: 1.71
Prefixes being announced from the ARIN address blocks: 78728
Unique aggregates announced from the ARIN address blocks: 30951
ARIN Region origin ASes present in the Internet Routing Table: 11620
ARIN Prefixes per ASN: 6.78
ARIN Region origin ASes announcing only one prefix: 4472
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: 335414400
Equivalent to 19 /8s, 254 /16s and 4 /24s
Percentage of available ARIN address space announced: 74.0
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: 46562
Total RIPE prefixes after maximum aggregation: 30369
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 43106
Unique aggregates announced from the RIPE address blocks: 28578
RIPE Region origin ASes present in the Internet Routing Table: 9750
RIPE Prefixes per ASN: 4.42
RIPE Region origin ASes announcing only one prefix: 5164
RIPE Region transit ASes present in the Internet Routing Table: 1568
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 314979584
Equivalent to 18 /8s, 198 /16s and 53 /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: 15106
Total LACNIC prefixes after maximum aggregation: 4219
LACNIC Deaggregation factor: 3.58
Prefixes being announced from the LACNIC address blocks: 13161
Unique aggregates announced from the LACNIC address blocks: 7378
LACNIC Region origin ASes present in the Internet Routing Table: 803
LACNIC Prefixes per ASN: 16.39
LACNIC Region origin ASes announcing only one prefix: 258
LACNIC Region transit ASes present in the Internet Routing Table: 141
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 39337728
Equivalent to 2 /8s, 88 /16s and 63 /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: 1009
AfriNIC Deaggregation factor: 2.58
Prefixes being announced from the AfriNIC address blocks: 1975
Unique aggregates announced from the AfriNIC address blocks: 1198
AfriNIC Region origin ASes present in the Internet Routing Table: 191
AfriNIC Prefixes per ASN: 10.34
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: 6225408
Equivalent to 0 /8s, 94 /16s and 254 /24s
Percentage of available AfriNIC address space announced: 18.6
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 1227 382 71 Videsh Sanchar Nigam Ltd. Aut
9583 1096 79 394 Sify Limited
9498 1001 469 69 BHARTI BT INTERNET LTD.
4766 781 4939 310 Korea Telecom (KIX)
23577 779 35 706 Korea Telecom (ATM-MPLS)
17488 703 46 41 Hathway IP Over Cable Interne
7545 634 142 80 TPG Internet Pty Ltd
18101 558 117 35 Reliance Infocom Ltd Internet
1221 550 1954 425 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 350 4813 164 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1501 6128 990 AT&T WorldNet Services
4323 1274 1034 370 Time Warner Telecom
2386 1149 597 758 AT&T Data Communications Serv
6478 1104 362 147 AT&T Worldnet Services
11492 1076 105 24 Cable One
6197 1027 706 506 BellSouth Network Solutions,
18566 1010 288 9 Covad Communications
701 959 6599 734 UUNET Technologies, Inc.
174 957 6780 867 Cogent Communications
1239 808 2731 574 Sprint
7011 804 229 484 Citizens Utilities
20115 801 726 427 Charter Communications
19262 775 2694 206 Verizon Global Networks
209 744 3834 578 Qwest
22773 720 1892 44 Cox Communications, Inc.
7385 604 171 471 Linkport Communications
7029 597 488 80 Alltel Information Services,
852 589 1090 371 Telus Advanced Communications
855 574 253 71 Canadian Research Network
5668 574 160 17 CenturyTel Internet Holdings,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 516 1938 407 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 305 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 249 444 241 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 210 1441 24 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 832 1870 209 UniNet S.A. de C.V.
11830 483 299 19 Instituto Costarricense de El
11172 369 116 63 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 253 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 208 58 10 TVCABLE BOGOTA
20299 194 23 12 NEWCOM AMERICAS
10481 181 72 8 Prima S.A.
14522 167 27 8 SatNet S.A.
7910 157 11 31 ANDINET ON LINE
23216 157 19 42 RAMtelecom Telecomunicaciones
21826 155 27 60 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 229 188 7 TEDATA
15475 162 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 26 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 1227 1156 Videsh Sanchar Nigam Ltd. Aut
11492 1076 1052 Cable One
4134 1290 1010 CHINANET-BACKBONE
18566 1010 1001 Covad Communications
6478 1104 957 AT&T Worldnet Services
9498 1001 932 BHARTI BT INTERNET LTD.
4323 1274 904 Time Warner Telecom
9583 1096 702 Sify Limited
22773 720 676 Cox Communications, Inc.
17488 703 662 Hathway IP Over Cable Interne
8151 832 623 UniNet S.A. de C.V.
19262 775 569 Verizon Global Networks
5668 574 557 CenturyTel Internet Holdings,
7545 634 554 TPG Internet Pty Ltd
18101 558 523 Reliance Infocom Ltd Internet
6197 1027 521 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
/13:244 /14:459 /15:884 /16:9448 /17:4002 /18:6422
/19:13612 /20:15701 /21:14173 /22:18445 /23:19557 /24:117641
/25:789 /26:825 /27:476 /28:69 /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 1067 1076 Cable One
18566 992 1010 Covad Communications
9583 937 1096 Sify Limited
2386 849 1149 AT&T Data Communications Serv
7018 814 1501 AT&T WorldNet Services
6197 781 1027 BellSouth Network Solutions,
23577 765 779 Korea Telecom (ATM-MPLS)
7011 705 804 Citizens Utilities
9498 670 1001 BHARTI BT INTERNET LTD.
4755 628 1227 Videsh Sanchar Nigam Ltd. Aut
4766 593 781 Korea Telecom (KIX)
19916 563 568 OLM LLC
17488 524 703 Hathway IP Over Cable Interne
4323 520 1274 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
7385 455 604 Linkport Communications
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 7:1 8:82 9:1 12:1810 15:19
16:3 17:3 18:8 20:36 24:923 25:1
32:51 33:2 38:320 40:61 41:156 44:2
47:5 52:4 55:3 56:3 57:25 58:421
59:401 60:306 61:970 62:925 63:1974 64:3113
65:2357 66:3251 67:790 68:633 69:1872 70:516
71:108 72:1336 73:1 74:504 75:262 76:52
77:236 78:2 80:824 81:809 82:660 83:390
84:419 85:822 86:336 87:476 88:276 89:899
90:7 91:356 94:1 97:6 98:3 116:163
117:32 121:197 122:543 123:112 124:822 125:942
128:281 129:221 130:126 131:367 132:52 133:9
134:193 135:38 136:180 137:81 138:142 139:70
140:479 141:170 142:373 143:233 144:291 145:43
146:320 147:122 148:400 149:143 150:113 151:158
152:92 153:125 154:4 155:254 156:152 157:186
158:158 159:157 160:106 161:92 162:228 163:184
164:450 165:399 166:241 167:285 168:507 169:120
170:405 171:16 172:1 189:60 190:661 192:5768
193:3883 194:3140 195:2243 196:912 198:3762 199:3281
200:4881 201:1034 202:7367 203:7500 204:3968 205:2036
206:2349 207:2844 208:2711 209:3565 210:2465 211:966
212:1309 213:1477 214:416 215:40 216:4041 217:1171
218:355 219:381 220:967 221:407 222:261
End of report
