Routing Table Report 00:00 GMT Thu 18 Sep, 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: 274869
Prefixes after maximum aggregation: 131226
Deaggregation factor: 2.09
Unique aggregates announced to Internet: 130817
Total ASes present in the Internet Routing Table: 29289
Prefixes per ASN: 9.38
Origin-only ASes present in the Internet Routing Table: 25392
Origin ASes announcing only one prefix: 12364
Transit ASes present in the Internet Routing Table: 3897
Transit-only ASes present in the Internet Routing Table: 92
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 27
Max AS path prepend of ASN (13791) 17
Prefixes from unregistered ASNs in the Routing Table: 577
Unregistered ASNs in the Routing Table: 221
Number of 32-bit ASNs allocated by the RIRs: 60
Prefixes from 32-bit ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 775
Number of addresses announced to Internet: 1921659062
Equivalent to 114 /8s, 138 /16s and 48 /24s
Percentage of available address space announced: 51.8
Percentage of allocated address space announced: 63.0
Percentage of available address space allocated: 82.3
Percentage of address space in use by end-sites: 73.6
Total number of prefixes smaller than registry allocations: 135811
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 65030
Total APNIC prefixes after maximum aggregation: 22805
APNIC Deaggregation factor: 2.85
Prefixes being announced from the APNIC address blocks: 62049
Unique aggregates announced from the APNIC address blocks: 26159
APNIC Region origin ASes present in the Internet Routing Table: 3389
APNIC Prefixes per ASN: 18.31
APNIC Region origin ASes announcing only one prefix: 919
APNIC Region transit ASes present in the Internet Routing Table: 535
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 376335264
Equivalent to 22 /8s, 110 /16s and 107 /24s
Percentage of available APNIC address space announced: 80.1
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: 122503
Total ARIN prefixes after maximum aggregation: 66031
ARIN Deaggregation factor: 1.86
Prefixes being announced from the ARIN address blocks: 90724
Unique aggregates announced from the ARIN address blocks: 35317
ARIN Region origin ASes present in the Internet Routing Table: 12445
ARIN Prefixes per ASN: 7.29
ARIN Region origin ASes announcing only one prefix: 4791
ARIN Region transit ASes present in the Internet Routing Table: 1235
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 20
Number of ARIN addresses announced to Internet: 364444801
Equivalent to 21 /8s, 184 /16s and 252 /24s
Percentage of available ARIN address space announced: 74.9
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, 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: 59127
Total RIPE prefixes after maximum aggregation: 35307
RIPE Deaggregation factor: 1.67
Prefixes being announced from the RIPE address blocks: 54722
Unique aggregates announced from the RIPE address blocks: 35731
RIPE Region origin ASes present in the Internet Routing Table: 11903
RIPE Prefixes per ASN: 4.60
RIPE Region origin ASes announcing only one prefix: 6249
RIPE Region transit ASes present in the Internet Routing Table: 1843
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 27
Number of RIPE addresses announced to Internet: 372192896
Equivalent to 22 /8s, 47 /16s and 54 /24s
Percentage of available RIPE address space announced: 85.3
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, 47104-49151
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: 23592
Total LACNIC prefixes after maximum aggregation: 5350
LACNIC Deaggregation factor: 4.41
Prefixes being announced from the LACNIC address blocks: 21789
Unique aggregates announced from the LACNIC address blocks: 11089
LACNIC Region origin ASes present in the Internet Routing Table: 1000
LACNIC Prefixes per ASN: 21.79
LACNIC Region origin ASes announcing only one prefix: 322
LACNIC Region transit ASes present in the Internet Routing Table: 171
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 27
Number of LACNIC addresses announced to Internet: 56693262
Equivalent to 3 /8s, 97 /16s and 18 /24s
Percentage of available LACNIC address space announced: 56.3
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: 4042
Total AfriNIC prefixes after maximum aggregation: 1269
AfriNIC Deaggregation factor: 3.19
Prefixes being announced from the AfriNIC address blocks: 4358
Unique aggregates announced from the AfriNIC address blocks: 2038
AfriNIC Region origin ASes present in the Internet Routing Table: 257
AfriNIC Prefixes per ASN: 16.96
AfriNIC Region origin ASes announcing only one prefix: 83
AfriNIC Region transit ASes present in the Internet Routing Table: 51
Average AfriNIC Region AS path length visible: 4.1
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 12703488
Equivalent to 0 /8s, 193 /16s and 215 /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 3338 3214 44 China Education and Research
4755 1723 578 91 Videsh Sanchar Nigam Ltd. Aut
17488 1385 94 101 Hathway IP Over Cable Interne
9583 1132 86 477 Sify Limited
4134 856 13651 345 CHINANET-BACKBONE
4766 845 6407 360 Korea Telecom (KIX)
23577 822 33 727 Korea Telecom (ATM-MPLS)
18101 766 152 51 Reliance Infocom Ltd Internet
4780 720 353 61 Digital United Inc.
9498 679 291 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 4292 3416 339 bellsouth.net, inc.
6298 1980 316 736 Cox Communicatons
20115 1688 1424 712 Charter Communications
1785 1655 710 156 AppliedTheory Corporation
2386 1548 677 898 AT&T Data Communications Serv
4323 1516 1065 368 Time Warner Telecom
7018 1392 9888 976 AT&T WorldNet Services
1803 1303 9 1030 SPRINT
11492 1210 151 19 Cable One
6478 1169 241 185 AT&T Worldnet Services
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 422 1777 377 TDC Tele Danmark
3301 332 1444 303 TeliaNet Sweden
30890 329 87 175 SC Kappa Invexim SRL
8452 328 188 11 TEDATA
3215 327 2756 106 France Telecom Transpac
5462 325 794 27 Telewest Broadband
3320 324 7063 273 Deutsche Telekom AG
8866 318 77 21 Bulgarian Telecommunication C
35228 290 84 5 Avatar Broadband Limited
8551 286 270 37 Bezeq International
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 1726 241 71 Telecom Argentina Stet-France
8151 1718 2828 218 UniNet S.A. de C.V.
11830 668 299 9 Instituto Costarricense de El
22047 564 270 14 VTR PUNTO NET S.A.
10620 429 105 60 TVCABLE BOGOTA
16814 426 27 10 NSS, S.A.
6471 420 85 48 ENTEL CHILE S.A.
16735 413 92 10 Companhia de Telecomunicacoes
11172 407 118 72 Servicios Alestra S.A de C.V
7738 373 730 27 Telecomunicacoes da Bahia S.A
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 515 67 32 LINKdotNET AS number
20858 403 34 3 EgyNet
3741 264 855 223 The Internet Solution
2018 232 215 139 Tertiary Education Network
6713 144 135 11 Itissalat Al-MAGHRIB
33783 137 10 13 EEPAD TISP TELECOM & INTERNET
5536 120 8 17 Internet Egypt Network
5713 118 555 68 Telkom SA Ltd
29571 107 13 8 Ci Telecom Autonomous system
33776 97 6 3 Starcomms Nigeria Limited
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
6389 4292 3416 339 bellsouth.net, inc.
4538 3338 3214 44 China Education and Research
6298 1980 316 736 Cox Communicatons
7303 1726 241 71 Telecom Argentina Stet-France
4755 1723 578 91 Videsh Sanchar Nigam Ltd. Aut
8151 1718 2828 218 UniNet S.A. de C.V.
20115 1688 1424 712 Charter Communications
1785 1655 710 156 AppliedTheory Corporation
2386 1548 677 898 AT&T Data Communications Serv
4323 1516 1065 368 Time Warner Telecom
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 3338 3294 China Education and Research
7303 1726 1655 Telecom Argentina Stet-France
4755 1723 1632 Videsh Sanchar Nigam Ltd. Aut
8151 1718 1500 UniNet S.A. de C.V.
1785 1655 1499 AppliedTheory Corporation
17488 1385 1284 Hathway IP Over Cable Interne
6298 1980 1244 Cox Communicatons
11492 1210 1191 Cable One
4323 1516 1148 Time Warner Telecom
18566 1049 1039 Covad Communications
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
24.75.116.0/22 10796 ServiceCo 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
63.140.213.0/24 22555 Universal Talkware Corporatio
63.143.71.0/24 701 UUNET Technologies, Inc.
63.143.115.0/24 701 UUNET Technologies, Inc.
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 /12:148
/13:298 /14:534 /15:1081 /16:10169 /17:4424 /18:7755
/19:16270 /20:19371 /21:18737 /22:24108 /23:24914 /24:143698
/25:621 /26:700 /27:373 /28:757 /29:382 /30:219
/31:0 /32:219
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2845 4292 bellsouth.net, inc.
6298 1955 1980 Cox Communicatons
4538 1764 3338 China Education and Research
1803 1280 1303 SPRINT
7303 1242 1726 Telecom Argentina Stet-France
2386 1229 1548 AT&T Data Communications Serv
17488 1192 1385 Hathway IP Over Cable Interne
11492 1191 1210 Cable One
1785 1124 1655 AppliedTheory Corporation
6478 1062 1169 AT&T Worldnet Services
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:140 12:2157 13:2 15:21 16:3
17:5 18:13 20:35 24:1082 32:197 38:492
40:92 41:706 43:1 44:2 47:12 52:3
55:3 56:3 57:48 58:555 59:591 60:451
61:984 62:1295 63:1966 64:3227 65:2370 66:3473
67:1236 68:780 69:2313 70:846 71:170 72:2026
73:7 74:1176 75:171 76:278 77:807 78:832
79:259 80:955 81:849 82:606 83:377 84:576
85:1020 86:397 87:728 88:338 89:1357 90:21
91:1505 92:255 93:875 94:142 96:64 97:80
98:320 99:8 114:100 115:46 116:1003 117:380
118:258 119:495 120:85 121:611 122:856 123:448
124:856 125:1245 128:357 129:204 130:134 131:411
132:70 133:9 134:178 135:32 136:223 137:95
138:142 139:101 140:506 141:102 142:408 143:306
144:328 145:51 146:370 147:157 148:517 149:297
150:127 151:180 152:149 153:143 154:10 155:283
156:175 157:300 158:167 159:300 160:275 161:138
162:256 163:152 164:516 165:504 166:382 167:331
168:628 169:143 170:472 171:33 172:10 173:33
186:1 187:10 188:1 189:650 190:2461 192:5749
193:4253 194:3356 195:2645 196:986 198:3730 199:3300
200:5956 201:1690 202:8270 203:8097 204:3938 205:2144
206:2363 207:2688 208:3598 209:3395 210:2992 211:1251
212:1467 213:1668 214:178 215:50 216:4332 217:1221
218:405 219:524 220:1067 221:417 222:446
End of report