Routing Table Report 00:00 GMT Thu 24 Feb, 2011
NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/rviews/
Analysis Summary
----------------
BGP routing table entries examined: 352489
Prefixes after maximum aggregation: 158391
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 171808
Total ASes present in the Internet Routing Table: 35952
Prefixes per ASN: 9.80
Origin-only ASes present in the Internet Routing Table: 31052
Origin ASes announcing only one prefix: 14905
Transit ASes present in the Internet Routing Table: 4900
Transit-only ASes present in the Internet Routing Table: 117
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 31
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 415
Unregistered ASNs in the Routing Table: 172
Number of 32-bit ASNs allocated by the RIRs: 1139
Prefixes from 32-bit ASNs in the Routing Table: 2
Special use prefixes present in the Routing Table: 73
Prefixes being announced from unallocated address space: 204
Number of addresses announced to Internet: 2398431423
Equivalent to 142 /8s, 245 /16s and 40 /24s
Percentage of available address space announced: 64.7
Percentage of allocated address space announced: 64.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 88.1
Total number of prefixes smaller than registry allocations: 145826
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 84576
Total APNIC prefixes after maximum aggregation: 28393
APNIC Deaggregation factor: 2.98
Prefixes being announced from the APNIC address blocks: 81517
Unique aggregates announced from the APNIC address blocks: 35950
APNIC Region origin ASes present in the Internet Routing Table: 4326
APNIC Prefixes per ASN: 18.84
APNIC Region origin ASes announcing only one prefix: 1217
APNIC Region transit ASes present in the Internet Routing Table: 677
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 591041730
Equivalent to 35 /8s, 58 /16s and 148 /24s
Percentage of available APNIC address space announced: 75.0
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 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, 133/8, 175/8, 180/8,
182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8,
219/8, 220/8, 221/8, 222/8, 223/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 142854
Total ARIN prefixes after maximum aggregation: 73646
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113312
Unique aggregates announced from the ARIN address blocks: 44967
ARIN Region origin ASes present in the Internet Routing Table: 14227
ARIN Prefixes per ASN: 7.96
ARIN Region origin ASes announcing only one prefix: 5384
ARIN Region transit ASes present in the Internet Routing Table: 1448
Average ARIN Region AS path length visible: 3.9
Max ARIN Region AS path length visible: 27
Number of ARIN addresses announced to Internet: 787615385
Equivalent to 46 /8s, 242 /16s and 14 /24s
Percentage of available ARIN address space announced: 62.6
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
53248-55295, 393216-394239
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8,
29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8,
40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8,
53/8, 54/8, 55/8, 56/8, 57/8, 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, 100/8, 104/8, 107/8, 108/8, 173/8,
174/8, 184/8, 199/8, 204/8, 205/8, 206/8, 207/8,
208/8, 209/8, 214/8, 215/8, 216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 85666
Total RIPE prefixes after maximum aggregation: 47030
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 78132
Unique aggregates announced from the RIPE address blocks: 49234
RIPE Region origin ASes present in the Internet Routing Table: 15364
RIPE Prefixes per ASN: 5.09
RIPE Region origin ASes announcing only one prefix: 7738
RIPE Region transit ASes present in the Internet Routing Table: 2347
Average RIPE Region AS path length visible: 4.1
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 460847165
Equivalent to 27 /8s, 119 /16s and 248 /24s
Percentage of available RIPE address space announced: 74.2
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, 47104-52223, 56320-58367
196608-198655
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
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, 109/8,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 31859
Total LACNIC prefixes after maximum aggregation: 7405
LACNIC Deaggregation factor: 4.30
Prefixes being announced from the LACNIC address blocks: 30628
Unique aggregates announced from the LACNIC address blocks: 15875
LACNIC Region origin ASes present in the Internet Routing Table: 1432
LACNIC Prefixes per ASN: 21.39
LACNIC Region origin ASes announcing only one prefix: 437
LACNIC Region transit ASes present in the Internet Routing Table: 264
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 27
Number of LACNIC addresses announced to Internet: 80843660
Equivalent to 4 /8s, 209 /16s and 147 /24s
Percentage of available LACNIC address space announced: 53.5
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 7277
Total AfriNIC prefixes after maximum aggregation: 1803
AfriNIC Deaggregation factor: 4.04
Prefixes being announced from the AfriNIC address blocks: 5718
Unique aggregates announced from the AfriNIC address blocks: 1845
AfriNIC Region origin ASes present in the Internet Routing Table: 426
AfriNIC Prefixes per ASN: 13.42
AfriNIC Region origin ASes announcing only one prefix: 129
AfriNIC Region transit ASes present in the Internet Routing Table: 96
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21850112
Equivalent to 1 /8s, 77 /16s and 104 /24s
Percentage of available AfriNIC address space announced: 32.6
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1848 9491 583 Korea Telecom (KIX)
7545 1598 302 88 TPG Internet Pty Ltd
4755 1421 633 164 Videsh Sanchar Nigam Ltd. Aut
17974 1407 475 29 PT TELEKOMUNIKASI INDONESIA
24560 1115 323 184 Bharti Airtel Ltd.
9583 1044 77 488 Sify Limited
4808 992 2077 285 CNCGROUP IP network: China169
17488 958 162 103 Hathway IP Over Cable Interne
18101 931 117 139 Reliance Infocom Ltd Internet
9829 895 761 45 BSNL National Internet Backbo
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3692 3855 261 bellsouth.net, inc.
4323 2617 1125 406 Time Warner Telecom
19262 1843 4939 283 Verizon Global Networks
1785 1786 697 132 AppliedTheory Corporation
20115 1577 1537 646 Charter Communications
6478 1505 295 144 AT&T Worldnet Services
18566 1447 321 156 Covad Communications
7018 1371 6731 893 AT&T WorldNet Services
2386 1300 554 936 AT&T Data Communications Serv
11492 1282 236 73 Cable One
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
286 982 713 158 KPNQwest Backbone AS
9116 545 328 32 Goldenlines main autonomous s
6830 515 1780 319 UPC Distribution Services
3292 501 1996 389 TDC Tele Danmark
9198 468 267 15 Kazakhtelecom Corporate Sales
34984 463 98 143 Tellcom Iletisim Hizmetleri
8866 441 133 23 Bulgarian Telecommunication C
20940 413 97 320 Akamai Technologies European
3320 410 7620 357 Deutsche Telekom AG
8551 405 355 38 Bezeq International
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1382 257 165 TVCABLE BOGOTA
8151 1353 2663 360 Uninet S.A. de C.V.
28573 1232 961 82 Types of queries are: POCs, o
6503 1169 354 74 AVANTEL, S.A.
7303 906 463 144 Telecom Argentina Stet-France
14420 641 57 94 Types of queries are: POCs, o
22047 547 310 15 Types of queries are: POCs, o
3816 512 221 100 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
27947 469 53 46 Telconet S.A
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 689 147 40 LINKdotNET AS number
8452 676 445 11 TEDATA
15475 477 90 12 Nile Online
36992 301 271 14 Etisalat MISR
3741 264 987 226 The Internet Solution
33776 230 13 5 Starcomms Nigeria Limited
24835 220 78 10 RAYA Telecom - Egypt
6713 205 199 12 Itissalat Al-MAGHRIB
29571 192 17 11 Ci Telecom Autonomous system
16637 158 439 88 Johnnic e-Ventures
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3692 3855 261 bellsouth.net, inc.
4323 2617 1125 406 Time Warner Telecom
4766 1848 9491 583 Korea Telecom (KIX)
19262 1843 4939 283 Verizon Global Networks
1785 1786 697 132 AppliedTheory Corporation
7545 1598 302 88 TPG Internet Pty Ltd
20115 1577 1537 646 Charter Communications
6478 1505 295 144 AT&T Worldnet Services
18566 1447 321 156 Covad Communications
4755 1421 633 164 Videsh Sanchar Nigam Ltd. Aut
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2617 2211 Time Warner Telecom
1785 1786 1654 AppliedTheory Corporation
19262 1843 1560 Verizon Global Networks
7545 1598 1510 TPG Internet Pty Ltd
17974 1407 1378 PT TELEKOMUNIKASI INDONESIA
6478 1505 1361 AT&T Worldnet Services
18566 1447 1291 Covad Communications
4766 1848 1265 Korea Telecom (KIX)
4755 1421 1257 Videsh Sanchar Nigam Ltd. Aut
10620 1382 1217 TVCABLE BOGOTA
Complete listing at http://thyme.rand.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 1239 Sprint
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 4323 Time Warner Telecom
26973 UNALLOCATED 12.39.152.0/24 1239 Sprint
26973 UNALLOCATED 12.39.154.0/23 1239 Sprint
26973 UNALLOCATED 12.39.155.0/24 1239 Sprint
26973 UNALLOCATED 12.39.159.0/24 1239 Sprint
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.29.244.56/29 286 KPNQwest Backbone AS
10.29.245.1/32 286 KPNQwest Backbone AS
10.29.245.2/32 286 KPNQwest Backbone AS
10.29.245.15/32 286 KPNQwest Backbone AS
10.29.245.19/32 286 KPNQwest Backbone AS
10.29.245.20/32 286 KPNQwest Backbone AS
10.29.245.21/32 286 KPNQwest Backbone AS
10.29.245.22/32 286 KPNQwest Backbone AS
10.29.245.25/32 286 KPNQwest Backbone AS
10.29.245.26/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
5.0.0.0/16 12654 RIPE NCC RIS Project
5.1.0.0/21 12654 RIPE NCC RIS Project
5.1.24.0/24 12654 RIPE NCC RIS Project
24.129.192.0/19 7922 Continental Cablevision
31.24.32.0/21 43082 ServerSpace Ltd
31.24.40.0/21 43988 Access Basic Server Autonomou
31.24.144.0/21 49855 PLUTEX GmbH
37.0.0.0/16 12654 RIPE NCC RIS Project
37.1.0.0/21 12654 RIPE NCC RIS Project
37.1.24.0/24 12654 RIPE NCC RIS Project
Complete listing at http://thyme.rand.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 /8:21 /9:10 /10:26 /11:73 /12:216
/13:446 /14:770 /15:1399 /16:11621 /17:5895 /18:9633
/19:19363 /20:25095 /21:25322 /22:33648 /23:32242 /24:183636
/25:397 /26:376 /27:204 /28:366 /29:302 /30:722
/31:49 /32:657
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2279 3692 bellsouth.net, inc.
6478 1460 1505 AT&T Worldnet Services
18566 1425 1447 Covad Communications
4323 1407 2617 Time Warner Telecom
10620 1273 1382 TVCABLE BOGOTA
11492 1239 1282 Cable One
7011 1058 1161 Citizens Utilities
1785 1054 1786 AppliedTheory Corporation
19262 954 1843 Verizon Global Networks
6503 951 1169 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:233 2:54 4:17 5:1 8:336 12:2033
13:1 14:410 15:15 16:3 17:8 20:9
23:1 24:1506 27:597 32:127 33:4 34:2
37:1 38:706 40:101 41:2212 44:3 46:656
47:4 49:151 50:93 52:12 55:4 56:2
57:42 58:865 59:477 60:384 61:1110 62:1067
63:1946 64:3878 65:2363 66:4265 67:1809 68:1185
69:3036 70:778 71:410 72:2047 73:3 74:2405
75:303 76:354 77:880 78:696 79:462 80:1071
81:828 82:535 83:481 84:646 85:1062 86:574
87:769 88:360 89:1611 90:157 91:3540 92:494
93:1057 94:1225 95:787 96:456 97:252 98:827
99:33 101:31 107:3 108:90 109:938 110:481
111:719 112:314 113:370 114:499 115:654 116:964
117:680 118:686 119:1017 120:245 121:696 122:1619
123:1053 124:1315 125:1256 128:267 129:159 130:170
131:569 132:108 133:20 134:222 135:49 136:215
137:141 138:295 139:132 140:493 141:203 142:356
143:383 144:487 145:51 146:438 147:216 148:637
149:274 150:167 151:230 152:298 153:179 154:3
155:364 156:176 157:344 158:130 159:380 160:315
161:207 162:276 163:155 164:478 165:355 166:504
167:421 168:743 169:153 170:755 171:69 172:2
173:1325 174:535 175:320 176:1 177:13 178:768
180:813 181:2 182:370 183:248 184:278 186:1010
187:807 188:900 189:1051 190:4388 192:5844 193:4828
194:3552 195:3093 196:1176 197:3 198:3588 199:3846
200:5584 201:1591 202:8449 203:8458 204:4097 205:2345
206:2655 207:3084 208:3935 209:3494 210:2650 211:1342
212:1975 213:1787 214:764 215:63 216:4877 217:1651
218:550 219:377 220:1204 221:453 222:339 223:102
End of report
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