Routing Table Report 00:00 GMT Wed 31 Dec, 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: 187072
Prefixes after maximum aggregation: 89800
Deaggregation factor: 2.08
Unique aggregates announced to Internet: 90836
Total ASes present in the Internet Routing Table: 24836
Prefixes per ASN: 7.53
Origin-only ASes present in the Internet Routing Table: 21292
Origin ASes announcing only one prefix: 11646
Transit ASes present in the Internet Routing Table: 3544
Transit-only ASes present in the Internet Routing Table: 351
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 23
Max AS path prepend of ASN (13791) 17
Prefixes from unregistered ASNs in the Routing Table: 769
Unregistered ASNs in the Routing Table: 234
Number of 32-bit ASNs allocated by the RIRs: 70
Prefixes from 32-bit ASNs in the Routing Table: 10
Special use prefixes present in the Routing Table: 5
Prefixes being announced from unallocated address space: 113
Number of addresses announced to Internet: 1645296407
Equivalent to 98 /8s, 17 /16s and 59 /24s
Percentage of available address space announced: 44.4
Percentage of allocated address space announced: 52.5
Percentage of available address space allocated: 84.6
Percentage of address space in use by end-sites: 75.0
Total number of prefixes smaller than registry allocations: 101704
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 27680
Total APNIC prefixes after maximum aggregation: 7856
APNIC Deaggregation factor: 3.52
Prefixes being announced from the APNIC address blocks: 24232
Unique aggregates announced from the APNIC address blocks: 8345
APNIC Region origin ASes present in the Internet Routing Table: 1781
APNIC Prefixes per ASN: 13.61
APNIC Region origin ASes announcing only one prefix: 552
APNIC Region transit ASes present in the Internet Routing Table: 375
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 23
Number of APNIC addresses announced to Internet: 254551808
Equivalent to 15 /8s, 44 /16s and 39 /24s
Percentage of available APNIC address space announced: 50.6
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, 110/8, 111/8, 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: 85625
Total ARIN prefixes after maximum aggregation: 44410
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 54539
Unique aggregates announced from the ARIN address blocks: 19348
ARIN Region origin ASes present in the Internet Routing Table: 9983
ARIN Prefixes per ASN: 5.46
ARIN Region origin ASes announcing only one prefix: 4493
ARIN Region transit ASes present in the Internet Routing Table: 1047
Average ARIN Region AS path length visible: 3.5
Max ARIN Region AS path length visible: 20
Number of ARIN addresses announced to Internet: 308111104
Equivalent to 18 /8s, 93 /16s and 103 /24s
Percentage of available ARIN address space announced: 59.2
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, 108/8, 173/8,
174/8, 184/8, 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: 53124
Total RIPE prefixes after maximum aggregation: 32067
RIPE Deaggregation factor: 1.66
Prefixes being announced from the RIPE address blocks: 48964
Unique aggregates announced from the RIPE address blocks: 32882
RIPE Region origin ASes present in the Internet Routing Table: 11524
RIPE Prefixes per ASN: 4.25
RIPE Region origin ASes announcing only one prefix: 6253
RIPE Region transit ASes present in the Internet Routing Table: 1845
Average RIPE Region AS path length visible: 4.4
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 336660199
Equivalent to 20 /8s, 17 /16s and 6 /24s
Percentage of available RIPE address space announced: 77.2
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
40960-45055, 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: 16525
Total LACNIC prefixes after maximum aggregation: 3874
LACNIC Deaggregation factor: 4.27
Prefixes being announced from the LACNIC address blocks: 14708
Unique aggregates announced from the LACNIC address blocks: 7848
LACNIC Region origin ASes present in the Internet Routing Table: 798
LACNIC Prefixes per ASN: 18.43
LACNIC Region origin ASes announcing only one prefix: 265
LACNIC Region transit ASes present in the Internet Routing Table: 153
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 35365130
Equivalent to 2 /8s, 27 /16s and 161 /24s
Percentage of available LACNIC address space announced: 35.1
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: 3724
Total AfriNIC prefixes after maximum aggregation: 1266
AfriNIC Deaggregation factor: 2.94
Prefixes being announced from the AfriNIC address blocks: 4095
Unique aggregates announced from the AfriNIC address blocks: 2021
AfriNIC Region origin ASes present in the Internet Routing Table: 261
AfriNIC Prefixes per ASN: 15.69
AfriNIC Region origin ASes announcing only one prefix: 83
AfriNIC Region transit ASes present in the Internet Routing Table: 57
Average AfriNIC Region AS path length visible: 4.2
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 12442496
Equivalent to 0 /8s, 189 /16s and 219 /24s
Percentage of available AfriNIC address space announced: 24.7
AfriNIC AS Blocks 36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 196/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
17488 1213 87 81 Hathway IP Over Cable Interne
4538 1089 1312 23 China Education and Research
24560 635 225 148 Bharti Airtel Ltd.
4755 584 411 34 Videsh Sanchar Nigam Ltd. Aut
9498 583 271 16 BHARTI BT INTERNET LTD.
9829 575 445 9 BSNL National Internet Backbo
4134 481 12477 218 CHINANET-BACKBONE
17908 478 94 103 Tata Communications
4766 397 3798 89 Korea Telecom (KIX)
9583 392 56 60 Sify Limited
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 3517 3192 288 bellsouth.net, inc.
20115 1823 1449 717 Charter Communications
2386 1426 640 793 AT&T Data Communications Serv
6478 1268 300 517 AT&T Worldnet Services
11492 1230 192 12 Cable One
1785 1160 431 96 AppliedTheory Corporation
18566 1060 296 10 Covad Communications
7018 1008 9562 688 AT&T WorldNet Services
22773 955 2336 36 Cox Communications, Inc.
7011 908 236 527 Citizens Utilities
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 408 1607 353 TDC Tele Danmark
35228 404 144 5 Avatar Broadband Limited
30890 391 80 203 SC Kappa Invexim SRL
8452 382 184 5 TEDATA
12479 382 576 5 Uni2 Autonomous System
3301 324 1197 292 TeliaNet Sweden
29049 323 26 3 AzerSat LLC.
3320 319 6129 269 Deutsche Telekom AG
3215 312 2757 86 France Telecom Transpac
8551 279 267 26 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 1434 202 69 Telecom Argentina Stet-France
8151 1167 2220 182 Uninet S.A. de C.V.
10620 601 126 61 TVCABLE BOGOTA
22047 315 206 9 Types of queries are: POCs, o
16814 296 19 8 NSS, S.A.
3816 290 135 55 COLOMBIA TELECOMUNICACIONES S
28573 289 331 18 NET Servicos de Comunicao S.A
23216 259 18 58 RAMtelecom Telecomunicaciones
6471 257 71 27 ENTEL CHILE S.A.
21826 239 42 48 Internet Cable Plus C. 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 512 70 42 LINKdotNET AS number
3741 265 854 223 The Internet Solution
20858 257 34 3 EgyNet
2018 239 215 140 TENET-1
33783 147 10 13 EEPAD TISP TELECOM & INTERNET
6713 139 131 11 Itissalat Al-MAGHRIB
5713 119 555 68 Telkom SA Ltd
33776 118 6 3 Starcomms Nigeria Limited
5536 95 6 6 Internet Egypt Network
24835 78 42 8 RAYA Telecom - Egypt
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 3517 3192 288 bellsouth.net, inc.
20115 1823 1449 717 Charter Communications
7303 1434 202 69 Telecom Argentina Stet-France
2386 1426 640 793 AT&T Data Communications Serv
6478 1268 300 517 AT&T Worldnet Services
11492 1230 192 12 Cable One
17488 1213 87 81 Hathway IP Over Cable Interne
8151 1167 2220 182 Uninet S.A. de C.V.
1785 1160 431 96 AppliedTheory Corporation
4538 1089 1312 23 China Education and Research
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7303 1434 1365 Telecom Argentina Stet-France
11492 1230 1218 Cable One
17488 1213 1132 Hathway IP Over Cable Interne
20115 1823 1106 Charter Communications
4538 1089 1066 China Education and Research
1785 1160 1064 AppliedTheory Corporation
18566 1060 1050 Covad Communications
8151 1167 985 Uninet S.A. de C.V.
22773 955 919 Cox Communications, Inc.
6478 1268 751 AT&T Worldnet Services
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
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
32326 UNALLOCATED 12.40.49.0/24 7018 AT&T WorldNet Servic
25639 UNALLOCATED 12.41.169.0/24 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
10.29.248.65/32 286 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
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
63.140.213.0/24 22555 Universal Talkware Corporatio
63.143.251.0/24 22555 Universal Talkware Corporatio
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 /9:8 /10:17 /11:49 /12:145
/13:274 /14:460 /15:917 /16:8766 /17:3388 /18:5375
/19:10928 /20:13821 /21:13653 /22:17404 /23:18043 /24:93108
/25:159 /26:209 /27:107 /28:53 /29:78 /30:29
/31:0 /32:62
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2318 3517 bellsouth.net, inc.
2386 1228 1426 AT&T Data Communications Serv
11492 1200 1230 Cable One
17488 1182 1213 Hathway IP Over Cable Interne
7303 1086 1434 Telecom Argentina Stet-France
18566 1041 1060 Covad Communications
20115 918 1823 Charter Communications
1785 909 1160 AppliedTheory Corporation
7011 814 908 Citizens Utilities
6478 784 1268 AT&T Worldnet Services
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:12 5:1 8:176 12:2188 13:2 15:21
16:3 17:5 20:35 24:1124 32:139 38:534
40:96 41:934 43:1 44:2 47:9 52:3
55:3 56:3 57:47 58:569 59:671 60:455
61:1135 62:1170 63:1936 64:3435 65:2439 66:3650
67:1447 68:660 69:2439 70:530 71:174 72:1607
73:7 74:1343 75:194 76:308 77:905 78:512
79:302 80:942 81:848 82:591 83:380 84:597
85:1069 86:495 87:666 88:351 89:1397 90:41
91:1817 92:304 93:1124 94:879 95:146 96:96
97:151 98:173 99:11 110:1 111:1 113:57
114:157 115:180 116:1147 117:444 118:255 119:591
120:130 121:739 122:890 123:489 124:831 125:1388
128:359 129:220 130:134 131:411 132:72 133:9
134:324 135:33 136:219 137:134 138:144 139:99
140:430 141:109 142:381 143:302 144:318 145:53
146:371 147:142 148:606 149:298 150:139 151:208
152:148 153:138 154:10 155:254 156:168 157:305
158:162 159:300 160:273 161:131 162:256 163:142
164:517 165:505 166:366 167:348 168:678 169:159
170:488 171:38 172:10 173:139 174:18 187:17
188:1 189:413 190:2775 192:5822 193:4258 194:3393
195:2733 196:1056 198:3704 199:3324 200:3940
End of report