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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 01 Jun, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/06/01/0400
Analysis Summary
----------------
BGP routing table entries examined: 221952
Prefixes after maximum aggregation: 117394
Deaggregation factor: 1.89
Unique aggregates announced to Internet: 106655
Total ASes present in the Internet Routing Table: 25322
Prefixes per ASN: 8.77
Origin-only ASes present in the Internet Routing Table: 22050
Origin ASes announcing only one prefix: 10681
Transit ASes present in the Internet Routing Table: 3272
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: 4
Unregistered ASNs in the Routing Table: 5
Prefixes from 32-bit ASNs in the Routing Table: 7
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1727920736
Equivalent to 102 /8s, 253 /16s and 250 /24s
Percentage of available address space announced: 46.6
Percentage of allocated address space announced: 61.8
Percentage of available address space allocated: 75.5
Total number of prefixes smaller than registry allocations: 116465
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 51194
Total APNIC prefixes after maximum aggregation: 19987
APNIC Deaggregation factor: 2.56
Prefixes being announced from the APNIC address blocks: 48156
Unique aggregates announced from the APNIC address blocks: 20322
APNIC Region origin ASes present in the Internet Routing Table: 2959
APNIC Prefixes per ASN: 16.27
APNIC Region origin ASes announcing only one prefix: 788
APNIC Region transit ASes present in the Internet Routing Table: 448
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 296345760
Equivalent to 17 /8s, 169 /16s and 224 /24s
Percentage of available APNIC address space announced: 73.4
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: 106855
Total ARIN prefixes after maximum aggregation: 62277
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 78749
Unique aggregates announced from the ARIN address blocks: 30841
ARIN Region origin ASes present in the Internet Routing Table: 11609
ARIN Prefixes per ASN: 6.78
ARIN Region origin ASes announcing only one prefix: 4470
ARIN Region transit ASes present in the Internet Routing Table: 1058
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 334573184
Equivalent to 19 /8s, 241 /16s and 46 /24s
Percentage of available ARIN address space announced: 73.9
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: 45893
Total RIPE prefixes after maximum aggregation: 29969
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 42401
Unique aggregates announced from the RIPE address blocks: 28419
RIPE Region origin ASes present in the Internet Routing Table: 9691
RIPE Prefixes per ASN: 4.38
RIPE Region origin ASes announcing only one prefix: 5114
RIPE Region transit ASes present in the Internet Routing Table: 1553
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 310085632
Equivalent to 18 /8s, 123 /16s and 136 /24s
Percentage of available RIPE address space announced: 77.0
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: 15423
Total LACNIC prefixes after maximum aggregation: 4148
LACNIC Deaggregation factor: 3.72
Prefixes being announced from the LACNIC address blocks: 13539
Unique aggregates announced from the LACNIC address blocks: 7299
LACNIC Region origin ASes present in the Internet Routing Table: 795
LACNIC Prefixes per ASN: 17.03
LACNIC Region origin ASes announcing only one prefix: 254
LACNIC Region transit ASes present in the Internet Routing Table: 143
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 39019008
Equivalent to 2 /8s, 83 /16s and 98 /24s
Percentage of available LACNIC address space announced: 58.1
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: 2577
Total AfriNIC prefixes after maximum aggregation: 1001
AfriNIC Deaggregation factor: 2.57
Prefixes being announced from the AfriNIC address blocks: 1955
Unique aggregates announced from the AfriNIC address blocks: 1155
AfriNIC Region origin ASes present in the Internet Routing Table: 188
AfriNIC Prefixes per ASN: 10.40
AfriNIC Region origin ASes announcing only one prefix: 55
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: 6116096
Equivalent to 0 /8s, 93 /16s and 83 /24s
Percentage of available AfriNIC address space announced: 18.2
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 1289 9975 279 CHINANET-BACKBONE
4755 1225 382 72 Videsh Sanchar Nigam Ltd. Aut
9583 1039 108 16 Sify Limited
9498 990 469 69 BHARTI BT INTERNET LTD.
4766 783 4943 312 Korea Telecom (KIX)
23577 779 35 706 Korea Telecom (ATM-MPLS)
17488 694 45 38 Hathway IP Over Cable Interne
7545 627 142 79 TPG Internet Pty Ltd
18101 554 117 35 Reliance Infocom Ltd Internet
1221 550 1954 424 Telstra Pty Ltd
4668 507 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
9443 467 121 77 Primus Telecommunications
4812 462 821 76 China Telecom (Shanghai)
7474 410 218 269 SingTel Optus Pty Ltd
4802 409 86 148 Wantree Development
9829 363 258 15 BSNL National Internet Backbo
2907 360 1700 302 SINET Japan
17557 357 41 170 Pakistan Telecom
17974 344 129 12 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1497 6159 987 AT&T WorldNet Services
4323 1274 1033 367 Time Warner Telecom
2386 1153 596 758 AT&T Data Communications Serv
6478 1102 344 123 AT&T Worldnet Services
11492 1072 104 23 Cable One
6197 1041 707 509 BellSouth Network Solutions,
18566 1010 288 9 Covad Communications
701 957 6614 733 UUNET Technologies, Inc.
174 953 6776 863 Cogent Communications
1239 818 2731 579 Sprint
20115 806 723 428 Charter Communications
7011 804 228 481 Citizens Utilities
19262 775 2694 207 Verizon Global Networks
209 742 3835 582 Qwest
22773 721 1892 44 Cox Communications, Inc.
5668 600 160 17 CenturyTel Internet Holdings,
7029 600 488 80 Alltel Information Services,
7385 598 166 465 Linkport Communications
852 589 1090 371 Telus Advanced Communications
19916 568 49 51 OLM LLC
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 517 1939 410 UUNET - Commercial IP service
24863 345 47 32 LINKdotNET AS number
3301 308 1455 288 TeliaNet Sweden
3320 303 4994 253 Deutsche Telekom AG
6746 279 128 255 Dynamic Network Technologies,
680 260 2044 251 DFN-IP service G-WiN
8220 252 460 243 COLT Telecommunications
3215 246 2280 94 France Telecom Transpac
8708 237 416 230 Romania Data Systems S.A.
5089 219 1658 53 NTL Group Limited
3269 216 2647 74 TELECOM ITALIA
3352 211 1863 34 Ibernet, Internet Access Netw
9121 210 1441 24 TTnet Autonomous System
8551 207 197 27 Bezeq International
3246 200 334 190 Song Networks
9116 198 136 25 Goldenlines main autonomous s
1257 196 1196 174 SWIPnet Swedish IP Network
12479 185 578 6 Uni2 Autonomous System
30890 183 15 90 SC Kappa Invexim SRL
3300 181 171 88 AUCS Communications Services
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1326 1855 211 UniNet S.A. de C.V.
11830 483 299 19 Instituto Costarricense de El
11172 367 116 63 Servicios Alestra S.A de C.V
16814 361 22 8 NSS, S.A.
22047 315 238 12 VTR PUNTO NET S.A.
7303 288 143 29 Telecom Argentina Stet-France
6471 267 74 32 ENTEL CHILE S.A.
14117 244 17 14 Telefonica del Sur S.A.
11556 229 128 3 Cable-Wireless Panama
6147 224 168 25 Telefonica Del Peru
6503 217 188 87 AVANTEL, S.A.
20299 195 23 12 NEWCOM AMERICAS
10620 187 53 25 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 59 INTERCABLE
19429 154 94 43 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 277 866 219 The Internet Solution
8452 228 188 7 TEDATA
6713 143 135 11 Itissalat Al-MAGHRIB
2018 136 301 111 Tertiary Education Network
15475 136 84 4 Nile Online
5536 123 8 15 Internet Egypt Network
33783 120 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 49 16 13 MAURITIUS TELECOM
5713 44 294 34 Telkom SA Ltd
33774 42 13 23 AS Number for Telecom Algeria
16637 37 21 29 Johnnic e-Ventures
8524 32 2 8 AUCEGYPT Autonomous System
33776 31 2 6 Starcomms Nigeria Limited
21280 27 4 4 Swift Global Kenya Ltd.Is an
33766 26 2 1 Nyala Communications Pty Ltd
12455 25 6 3 Jambonet Autonomous system
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1225 1153 Videsh Sanchar Nigam Ltd. Aut
8151 1326 1115 UniNet S.A. de C.V.
11492 1072 1049 Cable One
9583 1039 1023 Sify Limited
4134 1289 1010 CHINANET-BACKBONE
18566 1010 1001 Covad Communications
6478 1102 979 AT&T Worldnet Services
9498 990 921 BHARTI BT INTERNET LTD.
4323 1274 907 Time Warner Telecom
22773 721 677 Cox Communications, Inc.
17488 694 656 Hathway IP Over Cable Interne
5668 600 583 CenturyTel Internet Holdings,
19262 775 568 Verizon Global Networks
7545 627 548 TPG Internet Pty Ltd
6197 1041 532 BellSouth Network Solutions,
7029 600 520 Alltel Information Services,
18101 554 519 Reliance Infocom Ltd Internet
19916 568 517 OLM LLC
15270 542 507 PaeTec.net -a division of Pae
4668 507 497 LG-EDS Systems Inc.
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
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 /10:14 /11:35 /12:123
/13:238 /14:452 /15:873 /16:9431 /17:3973 /18:6377
/19:13514 /20:15506 /21:14051 /22:18192 /23:19414 /24:117531
/25:784 /26:840 /27:476 /28:67 /29:8 /30:13
/31:0 /32:12
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1093 1102 AT&T Worldnet Services
11492 1063 1072 Cable One
18566 992 1010 Covad Communications
9583 873 1039 Sify Limited
2386 849 1153 AT&T Data Communications Serv
7018 804 1497 AT&T WorldNet Services
6197 795 1041 BellSouth Network Solutions,
23577 765 779 Korea Telecom (ATM-MPLS)
7011 705 804 Citizens Utilities
8151 705 1326 UniNet S.A. de C.V.
9498 660 990 BHARTI BT INTERNET LTD.
4755 623 1225 Videsh Sanchar Nigam Ltd. Aut
4766 590 783 Korea Telecom (KIX)
19916 563 568 OLM LLC
4323 522 1274 Time Warner Telecom
17488 515 694 Hathway IP Over Cable Interne
15270 509 542 PaeTec.net -a division of Pae
4668 497 507 LG-EDS Systems Inc.
18101 470 554 Reliance Infocom Ltd Internet
855 465 567 Canadian Research Network
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 7:1 8:72 9:1 12:1809 15:19
16:3 17:3 18:8 20:38 24:945 25:1
32:52 33:2 38:318 40:61 41:142 44:2
47:5 52:4 55:3 56:3 57:24 58:410
59:398 60:297 61:973 62:896 63:1982 64:3114
65:2367 66:3296 67:812 68:637 69:1869 70:520
71:107 72:1321 73:1 74:480 75:263 76:74
77:223 78:2 80:816 81:808 82:571 83:389
84:408 85:764 86:340 87:444 88:276 89:874
90:7 91:315 94:1 97:6 98:2 116:106
121:157 122:535 123:98 124:799 125:941 128:282
129:224 130:130 131:365 132:52 133:9 134:192
135:38 136:185 137:80 138:140 139:70 140:478
141:171 142:366 143:234 144:293 145:43 146:322
147:118 148:396 149:144 150:115 151:159 152:92
153:123 154:4 155:254 156:152 157:186 158:158
159:156 160:107 161:91 162:233 163:185 164:451
165:403 166:240 167:284 168:498 169:120 170:403
171:16 172:1 189:551 190:636 192:5772 193:3870
194:3139 195:2238 196:923 198:3749 199:3283 200:4829
201:1052 202:7315 203:7529 204:3971 205:2029 206:2362
207:2858 208:2702 209:3575 210:2450 211:969 212:1322
213:1461 214:412 215:40 216:4036 217:1144 218:353
219:382 220:954 221:375 222:263
End of report
