Routing Table Report 00:00 GMT Mon 18 Aug, 2008
NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/rviews/
Analysis Summary
----------------
BGP routing table entries examined: 273072
Prefixes after maximum aggregation: 131044
Deaggregation factor: 2.08
Unique aggregates announced to Internet: 129145
Total ASes present in the Internet Routing Table: 29004
Prefixes per ASN: 9.41
Origin-only ASes present in the Internet Routing Table: 25229
Origin ASes announcing only one prefix: 12216
Transit ASes present in the Internet Routing Table: 3775
Transit-only ASes present in the Internet Routing Table: 86
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 29
Max AS path prepend of ASN (17957) 20
Prefixes from unregistered ASNs in the Routing Table: 589
Unregistered ASNs in the Routing Table: 223
Number of 32-bit ASNs allocated by the RIRs: 58
Prefixes from 32-bit ASNs in the Routing Table: 7
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 782
Number of addresses announced to Internet: 1910381500
Equivalent to 113 /8s, 222 /16s and 27 /24s
Percentage of available address space announced: 51.5
Percentage of allocated address space announced: 62.6
Percentage of available address space allocated: 82.3
Percentage of address space in use by end-sites: 73.2
Total number of prefixes smaller than registry allocations: 135252
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 64195
Total APNIC prefixes after maximum aggregation: 22677
APNIC Deaggregation factor: 2.83
Prefixes being announced from the APNIC address blocks: 61278
Unique aggregates announced from the APNIC address blocks: 25823
APNIC Region origin ASes present in the Internet Routing Table: 3339
APNIC Prefixes per ASN: 18.35
APNIC Region origin ASes announcing only one prefix: 894
APNIC Region transit ASes present in the Internet Routing Table: 518
Average APNIC Region AS path length visible: 3.8
Max APNIC Region AS path length visible: 24
Number of APNIC addresses announced to Internet: 371848352
Equivalent to 22 /8s, 41 /16s and 244 /24s
Percentage of available APNIC address space announced: 79.2
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
APNIC Address Blocks 58/8, 59/8, 60/8, 61/8, 112/8, 113/8, 114/8,
115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8,
122/8, 123/8, 124/8, 125/8, 126/8, 202/8, 203/8,
210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 122923
Total ARIN prefixes after maximum aggregation: 66497
ARIN Deaggregation factor: 1.85
Prefixes being announced from the ARIN address blocks: 91340
Unique aggregates announced from the ARIN address blocks: 34880
ARIN Region origin ASes present in the Internet Routing Table: 12387
ARIN Prefixes per ASN: 7.37
ARIN Region origin ASes announcing only one prefix: 4765
ARIN Region transit ASes present in the Internet Routing Table: 1217
Average ARIN Region AS path length visible: 3.5
Max ARIN Region AS path length visible: 20
Number of ARIN addresses announced to Internet: 362094593
Equivalent to 21 /8s, 149 /16s and 32 /24s
Percentage of available ARIN address space announced: 74.4
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, 46080-47103
ARIN Address Blocks 24/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8,
69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8,
76/8, 96/8, 97/8, 98/8, 99/8, 173/8, 174/8,
199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8,
216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 58053
Total RIPE prefixes after maximum aggregation: 34898
RIPE Deaggregation factor: 1.66
Prefixes being announced from the RIPE address blocks: 53479
Unique aggregates announced from the RIPE address blocks: 35231
RIPE Region origin ASes present in the Internet Routing Table: 11750
RIPE Prefixes per ASN: 4.55
RIPE Region origin ASes announcing only one prefix: 6167
RIPE Region transit ASes present in the Internet Routing Table: 1770
Average RIPE Region AS path length visible: 3.7
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 369303296
Equivalent to 22 /8s, 3 /16s and 31 /24s
Percentage of available RIPE address space announced: 84.7
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
40960-45055, 47104-48127
RIPE Address Blocks 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8,
83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8,
90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 193/8,
194/8, 195/8, 212/8, 213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 23305
Total LACNIC prefixes after maximum aggregation: 5260
LACNIC Deaggregation factor: 4.43
Prefixes being announced from the LACNIC address blocks: 21564
Unique aggregates announced from the LACNIC address blocks: 10696
LACNIC Region origin ASes present in the Internet Routing Table: 981
LACNIC Prefixes per ASN: 21.98
LACNIC Region origin ASes announcing only one prefix: 311
LACNIC Region transit ASes present in the Internet Routing Table: 173
Average LACNIC Region AS path length visible: 3.7
Max LACNIC Region AS path length visible: 29
Number of LACNIC addresses announced to Internet: 54419220
Equivalent to 3 /8s, 62 /16s and 95 /24s
Percentage of available LACNIC address space announced: 54.1
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 186/8, 187/8, 189/8, 190/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 4007
Total AfriNIC prefixes after maximum aggregation: 1234
AfriNIC Deaggregation factor: 3.25
Prefixes being announced from the AfriNIC address blocks: 4348
Unique aggregates announced from the AfriNIC address blocks: 1911
AfriNIC Region origin ASes present in the Internet Routing Table: 250
AfriNIC Prefixes per ASN: 17.39
AfriNIC Region origin ASes announcing only one prefix: 79
AfriNIC Region transit ASes present in the Internet Routing Table: 49
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 12726016
Equivalent to 0 /8s, 194 /16s and 47 /24s
Percentage of available AfriNIC address space announced: 37.9
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
4538 3294 3134 41 China Education and Research
4755 1700 578 92 Videsh Sanchar Nigam Ltd. Aut
17488 1302 89 99 Hathway IP Over Cable Interne
9583 1170 92 493 Sify Limited
4134 849 13523 339 CHINANET-BACKBONE
4766 828 6390 353 Korea Telecom (KIX)
23577 826 33 731 Korea Telecom (ATM-MPLS)
4780 720 353 61 Digital United Inc.
18101 692 167 33 Reliance Infocom Ltd Internet
9498 675 291 55 BHARTI BT INTERNET LTD.
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3200 3358 208 bellsouth.net, inc.
6298 2003 323 733 Cox Communicatons
1785 1647 710 156 AppliedTheory Corporation
2386 1559 677 907 AT&T Data Communications Serv
4323 1492 1078 379 Time Warner Telecom
3549 1445 539 212 Global Crossing
7018 1413 9903 981 AT&T WorldNet Services
1803 1262 7 1000 SPRINT
11492 1214 151 22 Cable One
20115 1113 1080 573 Charter Communications
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3292 418 1776 373 TDC Tele Danmark
3215 395 2756 106 France Telecom Transpac
8452 357 188 11 TEDATA
3301 332 1444 303 TeliaNet Sweden
3320 322 7047 270 Deutsche Telekom AG
8866 317 77 21 Bulgarian Telecommunication C
5462 307 666 27 Telewest Broadband
8551 289 270 39 Bezeq International
1257 278 1131 203 SWIPnet Swedish IP Network
680 274 2047 264 DFN-IP service G-WiN
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7303 1698 236 64 Telecom Argentina Stet-France
8151 1486 2540 211 UniNet S.A. de C.V.
8167 666 593 43 TELESC - Telecomunicacoes de
11830 664 299 9 Instituto Costarricense de El
22047 565 270 14 VTR PUNTO NET S.A.
16814 426 27 10 NSS, S.A.
6471 417 85 48 ENTEL CHILE S.A.
16735 409 92 12 Companhia de Telecomunicacoes
11172 405 86 69 Servicios Alestra S.A de C.V
10620 371 99 90 TVCABLE BOGOTA
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 495 64 27 LINKdotNET AS number
20858 402 34 3 EgyNet
3741 266 855 224 The Internet Solution
2018 211 213 130 Tertiary Education Network
6713 144 135 11 Itissalat Al-MAGHRIB
33783 136 10 13 EEPAD TISP TELECOM & INTERNET
5713 129 540 74 Telkom SA Ltd
5536 120 8 17 Internet Egypt Network
33776 116 6 3 Starcomms Nigeria Limited
29571 107 13 8 Ci Telecom Autonomous system
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
4538 3294 3134 41 China Education and Research
6389 3200 3358 208 bellsouth.net, inc.
6298 2003 323 733 Cox Communicatons
4755 1700 578 92 Videsh Sanchar Nigam Ltd. Aut
7303 1698 236 64 Telecom Argentina Stet-France
1785 1647 710 156 AppliedTheory Corporation
2386 1559 677 907 AT&T Data Communications Serv
4323 1492 1078 379 Time Warner Telecom
8151 1486 2540 211 UniNet S.A. de C.V.
3549 1445 539 212 Global Crossing
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6389 3200 2992 bellsouth.net, inc.
7303 1698 1634 Telecom Argentina Stet-France
4755 1700 1608 Videsh Sanchar Nigam Ltd. Aut
1785 1647 1491 AppliedTheory Corporation
8151 1486 1275 UniNet S.A. de C.V.
6298 2003 1270 Cox Communicatons
3549 1445 1233 Global Crossing
17488 1302 1203 Hathway IP Over Cable Interne
11492 1214 1192 Cable One
4323 1492 1113 Time Warner Telecom
Complete listing at http://thyme.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
16927 UNALLOCATED 12.0.252.0/23 7018 AT&T WorldNet Servic
22492 UNALLOCATED 12.2.46.0/24 1239 Sprint
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
13632 UNALLOCATED 12.20.55.0/24 6517 Yipes Communications
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 7018 AT&T WorldNet Servic
13632 UNALLOCATED 12.31.25.0/24 6517 Yipes Communications
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
Complete listing at http://thyme.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.29.246.47/32 286 KPNQwest Backbone AS
10.29.246.48/32 286 KPNQwest Backbone AS
10.29.246.49/32 286 KPNQwest Backbone AS
10.29.248.65/32 286 KPNQwest Backbone AS
10.29.248.71/32 286 KPNQwest Backbone AS
192.168.192.0/21 7497 Computer Network Information
Complete listing at http://thyme.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.51.159.0/24 7843 Adelphia Corp.
24.53.86.0/24 7843 Adelphia Corp.
24.54.224.0/19 20001 HoldCo LLC - Road Runner
24.55.0.0/18 20001 HoldCo LLC - Road Runner
24.75.160.0/19 7843 Adelphia Corp.
24.142.40.0/21 7018 AT&T WorldNet Services
24.142.160.0/19 7018 AT&T WorldNet Services
24.246.0.0/17 7018 AT&T WorldNet Services
24.246.128.0/18 7018 AT&T WorldNet Services
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
Complete listing at http://thyme.apnic.net/rviews/data-add-IANA
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 /10:17 /11:46 /12:147
/13:298 /14:534 /15:1065 /16:10121 /17:4404 /18:7604
/19:16008 /20:19007 /21:18386 /22:23732 /23:24599 /24:142637
/25:882 /26:1142 /27:389 /28:738 /29:839 /30:225
/31:0 /32:224
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2037 3200 bellsouth.net, inc.
6298 1976 2003 Cox Communicatons
4538 1759 3294 China Education and Research
1803 1240 1262 SPRINT
2386 1239 1559 AT&T Data Communications Serv
7303 1202 1698 Telecom Argentina Stet-France
11492 1195 1214 Cable One
1785 1115 1647 AppliedTheory Corporation
17488 1109 1302 Hathway IP Over Cable Interne
3549 1082 1445 Global Crossing
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:133 12:2123 13:2 14:2 15:22
16:3 17:5 18:13 20:37 24:1085 32:197
38:483 40:92 41:693 43:1 44:2 47:12
50:1 52:3 55:3 56:3 57:48 58:560
59:582 60:453 61:995 62:1249 63:1963 64:3396
65:2351 66:3442 67:1220 68:768 69:2283 70:864
71:134 72:2036 73:7 74:1102 75:164 76:318
77:759 78:820 79:225 80:979 81:873 82:598
83:386 84:575 85:984 86:400 87:725 88:318
89:1312 90:39 91:1424 92:233 93:808 94:105
96:54 97:52 98:307 99:3 114:88 115:42
116:964 117:346 118:199 119:461 120:74 121:605
122:820 123:379 124:893 125:1230 128:354 129:205
130:135 131:410 132:70 133:9 134:188 135:33
136:217 137:94 138:145 139:101 140:503 141:103
142:405 143:328 144:401 145:51 146:384 147:156
148:513 149:202 150:129 151:183 152:148 153:143
154:10 155:278 156:173 157:290 158:166 159:288
160:273 161:119 162:264 163:155 164:517 165:460
166:379 167:334 168:628 169:139 170:450 171:33
172:10 173:13 188:1 189:497 190:2330 192:5810
193:4224 194:3283 195:2612 196:1014 198:3729 199:3317
200:5946 201:1705 202:8224 203:8096 204:3958 205:2150
206:2450 207:2771 208:3634 209:3390 210:2996 211:1243
212:1435 213:1627 214:177 215:50 216:4350 217:1212
218:404 219:517 220:1062 221:456 222:440
End of report