Routing Table Report 00:00 GMT Wed 09 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: 350677
Prefixes after maximum aggregation: 157366
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 170850
Total ASes present in the Internet Routing Table: 35826
Prefixes per ASN: 9.79
Origin-only ASes present in the Internet Routing Table: 30970
Origin ASes announcing only one prefix: 14921
Transit ASes present in the Internet Routing Table: 4856
Transit-only ASes present in the Internet Routing Table: 106
Average AS path length visible in the Internet Routing Table: 3.8
Max AS path length visible: 23
Max AS path prepend of ASN (22394) 20
Prefixes from unregistered ASNs in the Routing Table: 492
Unregistered ASNs in the Routing Table: 155
Number of 32-bit ASNs allocated by the RIRs: 1092
Prefixes from 32-bit ASNs in the Routing Table: 1
Special use prefixes present in the Routing Table: 73
Prefixes being announced from unallocated address space: 210
Number of addresses announced to Internet: 2413363662
Equivalent to 143 /8s, 217 /16s and 1 /24s
Percentage of available address space announced: 65.1
Percentage of allocated address space announced: 65.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 88.2
Total number of prefixes smaller than registry allocations: 144999
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 84031
Total APNIC prefixes after maximum aggregation: 28149
APNIC Deaggregation factor: 2.99
Prefixes being announced from the APNIC address blocks: 80837
Unique aggregates announced from the APNIC address blocks: 35729
APNIC Region origin ASes present in the Internet Routing Table: 4307
APNIC Prefixes per ASN: 18.77
APNIC Region origin ASes announcing only one prefix: 1222
APNIC Region transit ASes present in the Internet Routing Table: 666
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 586936513
Equivalent to 34 /8s, 251 /16s and 240 /24s
Percentage of available APNIC address space announced: 74.4
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: 142045
Total ARIN prefixes after maximum aggregation: 73182
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 112504
Unique aggregates announced from the ARIN address blocks: 44664
ARIN Region origin ASes present in the Internet Routing Table: 14187
ARIN Prefixes per ASN: 7.93
ARIN Region origin ASes announcing only one prefix: 5390
ARIN Region transit ASes present in the Internet Routing Table: 1431
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 752432281
Equivalent to 44 /8s, 217 /16s and 52 /24s
Percentage of available ARIN address space announced: 62.3
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, 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, 47/8, 48/8, 50/8, 52/8, 54/8,
55/8, 56/8, 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: 85190
Total RIPE prefixes after maximum aggregation: 46734
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 77685
Unique aggregates announced from the RIPE address blocks: 48774
RIPE Region origin ASes present in the Internet Routing Table: 15306
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7736
RIPE Region transit ASes present in the Internet Routing Table: 2353
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 456352329
Equivalent to 27 /8s, 51 /16s and 98 /24s
Percentage of available RIPE address space announced: 73.5
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: 31705
Total LACNIC prefixes after maximum aggregation: 7329
LACNIC Deaggregation factor: 4.33
Prefixes being announced from the LACNIC address blocks: 30477
Unique aggregates announced from the LACNIC address blocks: 15904
LACNIC Region origin ASes present in the Internet Routing Table: 1426
LACNIC Prefixes per ASN: 21.37
LACNIC Region origin ASes announcing only one prefix: 439
LACNIC Region transit ASes present in the Internet Routing Table: 254
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 80491404
Equivalent to 4 /8s, 204 /16s and 51 /24s
Percentage of available LACNIC address space announced: 53.3
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: 7453
Total AfriNIC prefixes after maximum aggregation: 1861
AfriNIC Deaggregation factor: 4.00
Prefixes being announced from the AfriNIC address blocks: 5858
Unique aggregates announced from the AfriNIC address blocks: 1823
AfriNIC Region origin ASes present in the Internet Routing Table: 435
AfriNIC Prefixes per ASN: 13.47
AfriNIC Region origin ASes announcing only one prefix: 133
AfriNIC Region transit ASes present in the Internet Routing Table: 95
Average AfriNIC Region AS path length visible: 3.9
Max AfriNIC Region AS path length visible: 18
Number of AfriNIC addresses announced to Internet: 21837824
Equivalent to 1 /8s, 77 /16s and 56 /24s
Percentage of available AfriNIC address space announced: 32.5
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 1784 9485 518 Korea Telecom (KIX)
7545 1622 300 82 TPG Internet Pty Ltd
4755 1412 637 161 Videsh Sanchar Nigam Ltd. Aut
17974 1407 467 28 PT TELEKOMUNIKASI INDONESIA
24560 1100 319 179 Bharti Airtel Ltd.
9583 1044 76 487 Sify Limited
17488 967 162 104 Hathway IP Over Cable Interne
18101 927 117 142 Reliance Infocom Ltd Internet
4808 916 1969 261 CNCGROUP IP network: China169
9829 897 763 42 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 3714 3855 266 bellsouth.net, inc.
4323 2624 1125 404 Time Warner Telecom
19262 1842 4935 283 Verizon Global Networks
1785 1787 697 133 AppliedTheory Corporation
20115 1573 1537 640 Charter Communications
6478 1482 291 81 AT&T Worldnet Services
7018 1357 6699 876 AT&T WorldNet Services
2386 1296 553 933 AT&T Data Communications Serv
22773 1278 2865 78 Cox Communications, Inc.
11492 1265 235 79 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
286 979 713 158 KPNQwest Backbone AS
9116 545 328 32 Goldenlines main autonomous s
6830 516 1764 319 UPC Distribution Services
3292 499 1996 388 TDC Tele Danmark
9198 465 266 14 Kazakhtelecom Corporate Sales
34984 456 97 137 Tellcom Iletisim Hizmetleri
8866 441 133 23 Bulgarian Telecommunication C
3320 406 7620 354 Deutsche Telekom AG
8551 405 355 38 Bezeq International
20940 403 92 310 Akamai Technologies European
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 1374 255 164 TVCABLE BOGOTA
8151 1344 2629 363 Uninet S.A. de C.V.
28573 1244 961 82 Types of queries are: POCs, o
6503 1190 355 79 AVANTEL, S.A.
7303 877 447 133 Telecom Argentina Stet-France
14420 638 57 92 Types of queries are: POCs, o
22047 543 310 15 Types of queries are: POCs, o
3816 503 220 95 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
27947 466 53 49 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
8452 780 445 11 TEDATA
24863 764 147 40 LINKdotNET AS number
36992 594 313 20 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 218 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
33776 194 12 15 Starcomms Nigeria Limited
29571 192 17 11 Ci Telecom Autonomous system
16637 149 422 84 Johnnic e-Ventures
29975 132 490 17 Vodacom
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 3714 3855 266 bellsouth.net, inc.
4323 2624 1125 404 Time Warner Telecom
19262 1842 4935 283 Verizon Global Networks
1785 1787 697 133 AppliedTheory Corporation
4766 1784 9485 518 Korea Telecom (KIX)
7545 1622 300 82 TPG Internet Pty Ltd
20115 1573 1537 640 Charter Communications
6478 1482 291 81 AT&T Worldnet Services
4755 1412 637 161 Videsh Sanchar Nigam Ltd. Aut
17974 1407 467 28 PT TELEKOMUNIKASI INDONESIA
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 2624 2220 Time Warner Telecom
1785 1787 1654 AppliedTheory Corporation
19262 1842 1559 Verizon Global Networks
7545 1622 1540 TPG Internet Pty Ltd
6478 1482 1401 AT&T Worldnet Services
17974 1407 1379 PT TELEKOMUNIKASI INDONESIA
4766 1784 1266 Korea Telecom (KIX)
4755 1412 1251 Videsh Sanchar Nigam Ltd. Aut
10620 1374 1210 TVCABLE BOGOTA
22773 1278 1200 Cox Communications, Inc.
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
31.144.0.0/16 21497 UMC Autonomous System
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
39.0.0.0/8 237 Merit Network
41.222.79.0/24 36938 >>UNKNOWN<<
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 /9:11 /10:26 /11:73 /12:220
/13:445 /14:775 /15:1395 /16:11662 /17:5872 /18:9620
/19:19328 /20:24981 /21:25091 /22:33363 /23:32150 /24:182497
/25:381 /26:360 /27:226 /28:379 /29:337 /30:761
/31:50 /32:653
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2291 3714 bellsouth.net, inc.
6478 1436 1482 AT&T Worldnet Services
4323 1412 2624 Time Warner Telecom
10620 1265 1374 TVCABLE BOGOTA
11492 1222 1265 Cable One
18566 1160 1182 Covad Communications
7011 1062 1165 Citizens Utilities
1785 1055 1787 AppliedTheory Corporation
6503 966 1190 AVANTEL, S.A.
19262 954 1842 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:173 2:57 4:17 5:1 8:334 12:2030
13:1 14:413 15:15 16:3 17:8 20:9
23:1 24:1496 27:575 32:128 33:5 34:2
37:1 38:698 40:101 41:2269 44:3 46:559
47:5 49:145 50:82 52:12 55:3 56:2
57:42 58:867 59:485 60:391 61:1117 62:1109
63:1936 64:3776 65:2361 66:4161 67:1796 68:1163
69:2987 70:757 71:401 72:2043 73:3 74:2375
75:305 76:350 77:875 78:700 79:454 80:1054
81:865 82:546 83:482 84:668 85:1079 86:538
87:770 88:362 89:1612 90:156 91:3482 92:494
93:1046 94:1220 95:796 96:426 97:250 98:792
99:33 101:27 107:3 108:86 109:916 110:469
111:698 112:310 113:357 114:497 115:642 116:937
117:677 118:649 119:1013 120:244 121:702 122:1632
123:1061 124:1303 125:1218 128:265 129:155 130:173
131:571 132:109 133:20 134:219 135:49 136:216
137:147 138:291 139:131 140:490 141:197 142:359
143:378 144:489 145:51 146:429 147:211 148:630
149:274 150:160 151:231 152:306 153:177 154:3
155:347 156:176 157:343 158:128 159:377 160:315
161:205 162:278 163:160 164:487 165:356 166:497
167:421 168:741 169:155 170:742 171:68 172:2
173:1286 174:522 175:315 176:1 177:4 178:767
180:793 182:349 183:250 184:240 186:998 187:813
188:915 189:1052 190:4365 192:5834 193:4825 194:3564
195:3096 196:1180 197:3 198:3591 199:3780 200:5580
201:1584 202:8426 203:8462 204:4120 205:2340 206:2647
207:3083 208:3913 209:3510 210:2653 211:1332 212:1931
213:1776 214:762 215:62 216:4895 217:1629 218:532
219:377 220:1208 221:451 222:343 223:95
End of report
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