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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 10 Jun, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/06/10/0400
Analysis Summary
----------------
BGP routing table entries examined: 222675
Prefixes after maximum aggregation: 118092
Deaggregation factor: 1.89
Unique aggregates announced to Internet: 107621
Total ASes present in the Internet Routing Table: 25377
Prefixes per ASN: 8.77
Origin-only ASes present in the Internet Routing Table: 22084
Origin ASes announcing only one prefix: 10724
Transit ASes present in the Internet Routing Table: 3293
Transit-only ASes present in the Internet Routing Table: 76
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: 1735765856
Equivalent to 103 /8s, 117 /16s and 175 /24s
Percentage of available address space announced: 46.8
Percentage of allocated address space announced: 62.1
Percentage of available address space allocated: 75.5
Total number of prefixes smaller than registry allocations: 116768
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 51777
Total APNIC prefixes after maximum aggregation: 20190
APNIC Deaggregation factor: 2.56
Prefixes being announced from the APNIC address blocks: 48721
Unique aggregates announced from the APNIC address blocks: 20850
APNIC Region origin ASes present in the Internet Routing Table: 2965
APNIC Prefixes per ASN: 16.43
APNIC Region origin ASes announcing only one prefix: 793
APNIC Region transit ASes present in the Internet Routing Table: 452
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 298528672
Equivalent to 17 /8s, 203 /16s and 47 /24s
Percentage of available APNIC address space announced: 73.9
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: 106807
Total ARIN prefixes after maximum aggregation: 62342
ARIN Deaggregation factor: 1.71
Prefixes being announced from the ARIN address blocks: 78680
Unique aggregates announced from the ARIN address blocks: 30950
ARIN Region origin ASes present in the Internet Routing Table: 11619
ARIN Prefixes per ASN: 6.77
ARIN Region origin ASes announcing only one prefix: 4470
ARIN Region transit ASes present in the Internet Routing Table: 1061
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 335302784
Equivalent to 19 /8s, 252 /16s and 80 /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: 46460
Total RIPE prefixes after maximum aggregation: 30319
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 42979
Unique aggregates announced from the RIPE address blocks: 28605
RIPE Region origin ASes present in the Internet Routing Table: 9726
RIPE Prefixes per ASN: 4.42
RIPE Region origin ASes announcing only one prefix: 5149
RIPE Region transit ASes present in the Internet Routing Table: 1564
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 314709760
Equivalent to 18 /8s, 194 /16s and 23 /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: 15071
Total LACNIC prefixes after maximum aggregation: 4228
LACNIC Deaggregation factor: 3.56
Prefixes being announced from the LACNIC address blocks: 13122
Unique aggregates announced from the LACNIC address blocks: 7362
LACNIC Region origin ASes present in the Internet Routing Table: 802
LACNIC Prefixes per ASN: 16.36
LACNIC Region origin ASes announcing only one prefix: 256
LACNIC Region transit ASes present in the Internet Routing Table: 142
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 39269888
Equivalent to 2 /8s, 87 /16s and 54 /24s
Percentage of available LACNIC address space announced: 58.5
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: 2551
Total AfriNIC prefixes after maximum aggregation: 1003
AfriNIC Deaggregation factor: 2.54
Prefixes being announced from the AfriNIC address blocks: 1950
Unique aggregates announced from the AfriNIC address blocks: 1192
AfriNIC Region origin ASes present in the Internet Routing Table: 188
AfriNIC Prefixes per ASN: 10.37
AfriNIC Region origin ASes announcing only one prefix: 56
AfriNIC Region transit ASes present in the Internet Routing Table: 38
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 6221056
Equivalent to 0 /8s, 94 /16s and 237 /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 1231 382 71 Videsh Sanchar Nigam Ltd. Aut
9583 1099 98 162 Sify Limited
9498 1001 469 69 BHARTI BT INTERNET LTD.
4766 786 4943 312 Korea Telecom (KIX)
23577 779 35 706 Korea Telecom (ATM-MPLS)
17488 699 46 40 Hathway IP Over Cable Interne
7545 633 142 80 TPG Internet Pty Ltd
18101 556 117 34 Reliance Infocom Ltd Internet
1221 547 1954 423 Telstra Pty Ltd
4668 508 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
4812 466 843 80 China Telecom (Shanghai)
9443 465 121 77 Primus Telecommunications
7474 410 218 269 SingTel Optus Pty Ltd
4802 407 86 146 Wantree Development
9829 363 258 15 BSNL National Internet Backbo
2907 360 1700 302 SINET Japan
17557 357 41 171 Pakistan Telecom
4837 349 4805 163 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1500 6128 989 AT&T WorldNet Services
4323 1268 1018 369 Time Warner Telecom
2386 1149 597 758 AT&T Data Communications Serv
6478 1103 362 150 AT&T Worldnet Services
11492 1075 105 23 Cable One
6197 1026 706 511 BellSouth Network Solutions,
18566 1010 288 9 Covad Communications
701 961 6599 736 UUNET Technologies, Inc.
174 958 6778 869 Cogent Communications
1239 805 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.
5668 604 160 17 CenturyTel Internet Holdings,
7385 604 171 471 Linkport Communications
7029 597 488 80 Alltel Information Services,
852 589 1090 371 Telus Advanced Communications
855 572 253 71 Canadian Research Network
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 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 216 2647 74 TELECOM ITALIA
3352 216 1864 37 Ibernet, Internet Access Netw
9121 209 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 186 578 6 Uni2 Autonomous System
30890 183 14 92 SC Kappa Invexim SRL
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 826 1855 210 UniNet S.A. de C.V.
11830 483 299 19 Instituto Costarricense de El
11172 368 116 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 293 143 30 Telecom Argentina Stet-France
6471 268 74 32 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 209 187 83 AVANTEL, S.A.
20299 194 23 12 NEWCOM AMERICAS
10620 191 54 19 TVCABLE BOGOTA
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
6713 142 135 11 Itissalat Al-MAGHRIB
2018 136 301 111 Tertiary Education Network
15475 136 84 4 Nile Online
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
10798 24 2 15 Standard Bank of South Africa
21280 23 4 4 Swift Global Kenya Ltd.Is an
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1231 1160 Videsh Sanchar Nigam Ltd. Aut
11492 1075 1052 Cable One
4134 1290 1010 CHINANET-BACKBONE
18566 1010 1001 Covad Communications
6478 1103 953 AT&T Worldnet Services
9583 1099 937 Sify Limited
9498 1001 932 BHARTI BT INTERNET LTD.
4323 1268 899 Time Warner Telecom
22773 720 676 Cox Communications, Inc.
17488 699 659 Hathway IP Over Cable Interne
8151 826 616 UniNet S.A. de C.V.
5668 604 587 CenturyTel Internet Holdings,
19262 775 569 Verizon Global Networks
7545 633 553 TPG Internet Pty Ltd
18101 556 522 Reliance Infocom Ltd Internet
7029 597 517 Alltel Information Services,
19916 568 517 OLM LLC
6197 1026 515 BellSouth Network Solutions,
15270 544 509 PaeTec.net -a division of Pae
855 572 501 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 /11:34 /12:126
/13:245 /14:458 /15:886 /16:9444 /17:3997 /18:6419
/19:13599 /20:15692 /21:14148 /22:18411 /23:19535 /24:117438
/25:793 /26:828 /27:476 /28:68 /29:10 /30:13
/31:0 /32:12
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1093 1103 AT&T Worldnet Services
11492 1066 1075 Cable One
18566 992 1010 Covad Communications
9583 936 1099 Sify Limited
2386 849 1149 AT&T Data Communications Serv
7018 814 1500 AT&T WorldNet Services
6197 780 1026 BellSouth Network Solutions,
23577 765 779 Korea Telecom (ATM-MPLS)
7011 705 804 Citizens Utilities
9498 670 1001 BHARTI BT INTERNET LTD.
4755 626 1231 Videsh Sanchar Nigam Ltd. Aut
4766 593 786 Korea Telecom (KIX)
19916 563 568 OLM LLC
17488 520 699 Hathway IP Over Cable Interne
4323 517 1268 Time Warner Telecom
15270 511 544 PaeTec.net -a division of Pae
4668 498 508 LG-EDS Systems Inc.
18101 473 556 Reliance Infocom Ltd Internet
855 470 572 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 24:923 25:1
32:51 33:2 38:319 40:61 41:155 44:2
47:5 52:4 55:3 56:3 57:24 58:413
59:403 60:302 61:970 62:923 63:1976 64:3123
65:2359 66:3248 67:791 68:633 69:1863 70:515
71:108 72:1311 73:1 74:503 75:261 76:52
77:232 78:2 80:827 81:805 82:659 83:388
84:417 85:824 86:341 87:472 88:276 89:897
90:7 91:354 94:1 97:6 98:3 116:163
117:32 121:160 122:542 123:109 124:824 125:943
128:281 129:225 130:134 131:368 132:52 133:9
134:193 135:38 136:185 137:81 138:142 139:70
140:480 141:170 142:373 143:233 144:291 145:43
146:319 147:122 148:402 149:141 150:114 151:158
152:92 153:125 154:4 155:254 156:152 157:186
158:158 159:158 160:104 161:92 162:228 163:182
164:450 165:399 166:241 167:285 168:507 169:120
170:403 171:15 172:1 189:59 190:660 192:5762
193:3875 194:3138 195:2233 196:905 198:3760 199:3281
200:4869 201:1032 202:7350 203:7507 204:3971 205:2027
206:2347 207:2841 208:2710 209:3574 210:2466 211:961
212:1303 213:1475 214:412 215:40 216:4036 217:1138
218:354 219:381 220:964 221:406 222:258
End of report
