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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 11 May, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/05/11/0400
Analysis Summary
----------------
BGP routing table entries examined: 219859
Prefixes after maximum aggregation: 117093
Deaggregation factor: 1.88
Unique aggregates announced to Internet: 106847
Total ASes present in the Internet Routing Table: 25140
Prefixes per ASN: 8.75
Origin-only ASes present in the Internet Routing Table: 21900
Origin ASes announcing only one prefix: 10594
Transit ASes present in the Internet Routing Table: 3240
Transit-only ASes present in the Internet Routing Table: 75
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (15941) 12
Prefixes from unregistered ASNs in the Routing Table: 5
Unregistered ASNs in the Routing Table: 6
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: 1717048000
Equivalent to 102 /8s, 88 /16s and 18 /24s
Percentage of available address space announced: 46.3
Percentage of allocated address space announced: 62.9
Percentage of available address space allocated: 73.7
Total number of prefixes smaller than registry allocations: 115054
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 50616
Total APNIC prefixes after maximum aggregation: 20244
APNIC Deaggregation factor: 2.50
Prefixes being announced from the APNIC address blocks: 47607
Unique aggregates announced from the APNIC address blocks: 21300
APNIC Region origin ASes present in the Internet Routing Table: 2940
APNIC Prefixes per ASN: 16.19
APNIC Region origin ASes announcing only one prefix: 789
APNIC Region transit ASes present in the Internet Routing Table: 436
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 292867264
Equivalent to 17 /8s, 116 /16s and 204 /24s
Percentage of available APNIC address space announced: 72.5
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: 106220
Total ARIN prefixes after maximum aggregation: 62006
ARIN Deaggregation factor: 1.71
Prefixes being announced from the ARIN address blocks: 78309
Unique aggregates announced from the ARIN address blocks: 30542
ARIN Region origin ASes present in the Internet Routing Table: 11557
ARIN Prefixes per ASN: 6.78
ARIN Region origin ASes announcing only one prefix: 4428
ARIN Region transit ASes present in the Internet Routing Table: 1053
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 332258688
Equivalent to 19 /8s, 205 /16s and 221 /24s
Percentage of available ARIN address space announced: 73.3
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: 45440
Total RIPE prefixes after maximum aggregation: 29713
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 41988
Unique aggregates announced from the RIPE address blocks: 28052
RIPE Region origin ASes present in the Internet Routing Table: 9592
RIPE Prefixes per ASN: 4.38
RIPE Region origin ASes announcing only one prefix: 5065
RIPE Region transit ASes present in the Internet Routing Table: 1543
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 305038464
Equivalent to 18 /8s, 46 /16s and 132 /24s
Percentage of available RIPE address space announced: 75.8
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: 15016
Total LACNIC prefixes after maximum aggregation: 4109
LACNIC Deaggregation factor: 3.65
Prefixes being announced from the LACNIC address blocks: 13098
Unique aggregates announced from the LACNIC address blocks: 7183
LACNIC Region origin ASes present in the Internet Routing Table: 788
LACNIC Prefixes per ASN: 16.62
LACNIC Region origin ASes announcing only one prefix: 257
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: 25
Number of LACNIC addresses announced to Internet: 38731008
Equivalent to 2 /8s, 78 /16s and 253 /24s
Percentage of available LACNIC address space announced: 57.7
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: 2558
Total AfriNIC prefixes after maximum aggregation: 1011
AfriNIC Deaggregation factor: 2.53
Prefixes being announced from the AfriNIC address blocks: 1927
Unique aggregates announced from the AfriNIC address blocks: 1191
AfriNIC Region origin ASes present in the Internet Routing Table: 187
AfriNIC Prefixes per ASN: 10.30
AfriNIC Region origin ASes announcing only one prefix: 55
AfriNIC Region transit ASes present in the Internet Routing Table: 36
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 6097152
Equivalent to 0 /8s, 93 /16s and 9 /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 1282 9603 274 CHINANET-BACKBONE
4755 1211 383 72 Videsh Sanchar Nigam Ltd. Aut
9583 1108 79 382 Sify Limited
9498 975 469 72 BHARTI BT INTERNET LTD.
4766 783 4943 312 Korea Telecom (KIX)
23577 778 35 708 Korea Telecom (ATM-MPLS)
17488 676 44 35 Hathway IP Over Cable Interne
7545 627 142 80 TPG Internet Pty Ltd
1221 544 1954 423 Telstra Pty Ltd
18101 537 116 28 Reliance Infocom Ltd Internet
4668 507 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
4812 465 807 76 China Telecom (Shanghai)
9443 452 115 74 Primus Telecommunications
7474 411 217 268 SingTel Optus Pty Ltd
4802 359 86 148 Wantree Development
17557 356 37 170 Pakistan Telecom
4837 344 4709 159 chinanet IDC center beijing n
4808 331 669 112 CNCGROUP IP network: China169
2907 329 1700 302 SINET Japan
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1497 6144 992 AT&T WorldNet Services
4323 1264 1027 360 Time Warner Telecom
2386 1132 580 752 AT&T Data Communications Serv
6478 1093 338 132 AT&T Worldnet Services
11492 1048 104 22 Cable One
6197 1034 688 503 BellSouth Network Solutions,
18566 1006 288 9 Covad Communications
174 968 6793 876 Cogent Communications
701 959 6660 730 UUNET Technologies, Inc.
20115 822 746 430 Charter Communications
1239 814 2715 576 Sprint
7011 791 226 472 Citizens Utilities
19262 774 2620 209 Verizon Global Networks
209 725 3846 582 Qwest
22773 713 1888 43 Cox Communications, Inc.
5668 601 160 17 CenturyTel Internet Holdings,
721 597 21755 271 DLA Systems Automation Center
852 589 1096 370 Telus Advanced Communications
7029 584 456 79 Alltel Information Services,
19916 568 49 51 OLM LLC
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 520 1941 414 UUNET - Commercial IP service
24863 344 47 30 LINKdotNET AS number
3301 309 1455 289 TeliaNet Sweden
3320 303 4993 251 Deutsche Telekom AG
6746 273 128 250 Dynamic Network Technologies,
680 257 2044 250 DFN-IP service G-WiN
8220 254 460 245 COLT Telecommunications
3215 238 2254 95 France Telecom Transpac
8708 235 287 228 Romania Data Systems S.A.
3269 214 2583 73 TELECOM ITALIA
3246 208 340 198 Song Networks
8551 206 196 30 Bezeq International
30890 203 17 94 SC Kappa Invexim SRL
3352 200 1783 37 Ibernet, Internet Access Netw
20858 196 34 4 EgyNet
9116 193 136 25 Goldenlines main autonomous s
1257 190 1180 168 SWIPnet Swedish IP Network
3300 184 171 90 AUCS Communications Services
12479 184 578 6 Uni2 Autonomous System
786 177 1795 177 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1209 1870 212 UniNet S.A. de C.V.
11830 483 299 19 Instituto Costarricense de El
11172 365 116 63 Servicios Alestra S.A de C.V
16814 362 22 8 NSS, S.A.
22047 318 238 12 VTR PUNTO NET S.A.
7303 276 143 29 Telecom Argentina Stet-France
6471 259 74 31 ENTEL CHILE S.A.
14117 242 17 14 Telefonica del Sur S.A.
11556 229 128 3 Cable-Wireless Panama
6147 221 166 25 Telefonica Del Peru
6503 215 172 86 AVANTEL, S.A.
20299 191 23 13 NEWCOM AMERICAS
10620 185 53 23 TVCABLE BOGOTA
10481 181 72 8 Prima S.A.
23216 157 19 42 RAMtelecom Telecomunicaciones
14522 155 25 7 SatNet S.A.
21826 155 27 59 INTERCABLE
7910 154 11 29 ANDINET ON LINE
19429 151 93 41 E.T.B.
19169 143 9 26 Telconet
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 290 868 232 The Internet Solution
8452 230 188 7 TEDATA
6713 143 135 11 Itissalat Al-MAGHRIB
2018 137 309 112 Tertiary Education Network
15475 129 84 4 Nile Online
5536 123 8 15 Internet Egypt Network
33783 115 8 9 EEPAD TISP TELECOM & INTERNET
24835 85 48 6 RAYA Telecom - Egypt
2905 76 174 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 43 13 24 AS Number for Telecom Algeria
16637 33 21 25 Johnnic e-Ventures
33776 31 2 6 Starcomms Nigeria Limited
8524 30 2 6 AUCEGYPT Autonomous System
21280 27 4 4 Swift Global Kenya Ltd.Is an
12455 25 6 3 Jambonet Autonomous system
10798 24 2 15 Standard Bank of South Africa
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1211 1139 Videsh Sanchar Nigam Ltd. Aut
11492 1048 1026 Cable One
4134 1282 1008 CHINANET-BACKBONE
8151 1209 997 UniNet S.A. de C.V.
18566 1006 997 Covad Communications
6478 1093 961 AT&T Worldnet Services
4323 1264 904 Time Warner Telecom
9498 975 903 BHARTI BT INTERNET LTD.
9583 1108 726 Sify Limited
22773 713 670 Cox Communications, Inc.
17488 676 641 Hathway IP Over Cable Interne
5668 601 584 CenturyTel Internet Holdings,
19262 774 565 Verizon Global Networks
7545 627 547 TPG Internet Pty Ltd
6197 1034 531 BellSouth Network Solutions,
19916 568 517 OLM LLC
18101 537 509 Reliance Infocom Ltd Internet
7029 584 505 Alltel Information Services,
4668 507 497 LG-EDS Systems Inc.
15270 531 496 PaeTec.net -a division of Pae
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65332 PRIVATE 63.166.106.192/27 1803 SPRINT
65242 PRIVATE 64.222.142.0/24 13674 Bell Atlantic Global
64858 PRIVATE 84.36.180.0/24 20858 EgyNet
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
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 /11:34 /12:123
/13:237 /14:450 /15:864 /16:9377 /17:3847 /18:6396
/19:13473 /20:15341 /21:13864 /22:17944 /23:19233 /24:116495
/25:767 /26:817 /27:480 /28:60 /29:6 /30:1
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1084 1093 AT&T Worldnet Services
11492 1034 1048 Cable One
18566 988 1006 Covad Communications
9583 946 1108 Sify Limited
2386 829 1132 AT&T Data Communications Serv
7018 807 1497 AT&T WorldNet Services
6197 795 1034 BellSouth Network Solutions,
23577 764 778 Korea Telecom (ATM-MPLS)
7011 694 791 Citizens Utilities
9498 639 975 BHARTI BT INTERNET LTD.
4755 606 1211 Videsh Sanchar Nigam Ltd. Aut
4766 590 783 Korea Telecom (KIX)
8151 585 1209 UniNet S.A. de C.V.
19916 563 568 OLM LLC
4323 524 1264 Time Warner Telecom
15270 498 531 PaeTec.net -a division of Pae
17488 497 676 Hathway IP Over Cable Interne
4668 496 507 LG-EDS Systems Inc.
5668 466 601 CenturyTel Internet Holdings,
855 464 566 Canadian Research Network
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:72 9:1 12:1795 13:1
15:19 16:3 17:3 18:8 20:37 24:943
25:1 32:53 38:310 40:60 41:128 44:2
47:5 52:4 55:2 56:3 57:27 58:387
59:341 60:273 61:920 62:971 63:1970 64:3069
65:2363 66:3276 67:805 68:637 69:1823 70:500
71:104 72:1326 73:1 74:440 75:260 76:51
77:151 80:840 81:806 82:605 83:374 84:435
85:766 86:361 87:471 88:270 89:859 90:6
91:281 97:6 116:56 121:179 122:522 123:96
124:798 125:926 128:281 129:219 130:123 131:340
132:52 133:11 134:193 135:39 136:183 137:78
138:138 139:66 140:477 141:169 142:371 143:241
144:290 145:43 146:316 147:117 148:386 149:144
150:115 151:159 152:92 153:120 154:4 155:253
156:152 157:186 158:161 159:157 160:105 161:90
162:231 163:177 164:452 165:406 166:235 167:281
168:495 169:119 170:398 171:16 172:1 189:427
190:600 192:5758 193:3806 194:3103 195:2212 196:920
198:3739 199:3295 200:4769 201:985 202:7270 203:7480
204:3949 205:2072 206:2361 207:2881 208:2671 209:3592
210:2481 211:937 212:1310 213:1459 214:394 215:40
216:4010 217:1143 218:355 219:358 220:953 221:408
222:264
End of report
