Routing Table Report 00:00 GMT Tue 18 Jan, 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: 347031
Prefixes after maximum aggregation: 156181
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 168870
Total ASes present in the Internet Routing Table: 35683
Prefixes per ASN: 9.73
Origin-only ASes present in the Internet Routing Table: 30767
Origin ASes announcing only one prefix: 14896
Transit ASes present in the Internet Routing Table: 4916
Transit-only ASes present in the Internet Routing Table: 113
Average AS path length visible in the Internet Routing Table: 4.1
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: 160
Number of 32-bit ASNs allocated by the RIRs: 1010
Prefixes from 32-bit ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 75
Prefixes being announced from unallocated address space: 226
Number of addresses announced to Internet: 2436328256
Equivalent to 145 /8s, 55 /16s and 107 /24s
Percentage of available address space announced: 65.7
Percentage of allocated address space announced: 67.9
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 87.7
Total number of prefixes smaller than registry allocations: 142760
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 83250
Total APNIC prefixes after maximum aggregation: 28029
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 80200
Unique aggregates announced from the APNIC address blocks: 35432
APNIC Region origin ASes present in the Internet Routing Table: 4290
APNIC Prefixes per ASN: 18.69
APNIC Region origin ASes announcing only one prefix: 1223
APNIC Region transit ASes present in the Internet Routing Table: 688
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 580376803
Equivalent to 34 /8s, 151 /16s and 216 /24s
Percentage of available APNIC address space announced: 78.6
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, 42/8, 43/8, 49/8,
58/8, 59/8, 60/8, 61/8, 101/8, 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: 140869
Total ARIN prefixes after maximum aggregation: 72586
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 111609
Unique aggregates announced from the ARIN address blocks: 44240
ARIN Region origin ASes present in the Internet Routing Table: 14142
ARIN Prefixes per ASN: 7.89
ARIN Region origin ASes announcing only one prefix: 5393
ARIN Region transit ASes present in the Internet Routing Table: 1463
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 25
Number of ARIN addresses announced to Internet: 778535049
Equivalent to 46 /8s, 103 /16s and 128 /24s
Percentage of available ARIN address space announced: 65.4
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
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,
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: 83835
Total RIPE prefixes after maximum aggregation: 46234
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 76485
Unique aggregates announced from the RIPE address blocks: 48013
RIPE Region origin ASes present in the Internet Routing Table: 15223
RIPE Prefixes per ASN: 5.02
RIPE Region origin ASes announcing only one prefix: 7711
RIPE Region transit ASes present in the Internet Routing Table: 2357
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 455720745
Equivalent to 27 /8s, 41 /16s and 191 /24s
Percentage of available RIPE address space announced: 75.5
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, 193/8, 194/8, 195/8, 212/8, 213/8,
217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 31341
Total LACNIC prefixes after maximum aggregation: 7233
LACNIC Deaggregation factor: 4.33
Prefixes being announced from the LACNIC address blocks: 30089
Unique aggregates announced from the LACNIC address blocks: 15672
LACNIC Region origin ASes present in the Internet Routing Table: 1418
LACNIC Prefixes per ASN: 21.22
LACNIC Region origin ASes announcing only one prefix: 431
LACNIC Region transit ASes present in the Internet Routing Table: 249
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 22
Number of LACNIC addresses announced to Internet: 79101196
Equivalent to 4 /8s, 182 /16s and 253 /24s
Percentage of available LACNIC address space announced: 58.9
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 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: 7464
Total AfriNIC prefixes after maximum aggregation: 1983
AfriNIC Deaggregation factor: 3.76
Prefixes being announced from the AfriNIC address blocks: 5784
Unique aggregates announced from the AfriNIC address blocks: 1878
AfriNIC Region origin ASes present in the Internet Routing Table: 436
AfriNIC Prefixes per ASN: 13.27
AfriNIC Region origin ASes announcing only one prefix: 138
AfriNIC Region transit ASes present in the Internet Routing Table: 94
Average AfriNIC Region AS path length visible: 4.3
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21755648
Equivalent to 1 /8s, 75 /16s and 247 /24s
Percentage of available AfriNIC address space announced: 43.2
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1755 9484 512 Korea Telecom (KIX)
7545 1547 298 75 TPG Internet Pty Ltd
17974 1412 459 28 PT TELEKOMUNIKASI INDONESIA
4755 1393 376 156 Videsh Sanchar Nigam Ltd. Aut
24560 1088 316 176 Bharti Airtel Ltd.
4808 978 2051 279 CNCGROUP IP network: China169
9583 976 72 498 Sify Limited
17488 964 162 103 Hathway IP Over Cable Interne
18101 921 117 142 Reliance Infocom Ltd Internet
9829 861 728 47 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 3713 3855 266 bellsouth.net, inc.
4323 2640 1091 401 Time Warner Telecom
19262 1839 4941 287 Verizon Global Networks
1785 1789 697 132 AppliedTheory Corporation
20115 1560 1533 641 Charter Communications
6478 1451 288 74 AT&T Worldnet Services
7018 1376 5676 890 AT&T WorldNet Services
2386 1299 554 934 AT&T Data Communications Serv
22773 1268 2863 73 Cox Communications, Inc.
11492 1258 233 81 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
286 961 710 153 KPNQwest Backbone AS
9116 525 328 32 Goldenlines main autonomous s
6830 501 1763 307 UPC Distribution Services
3292 500 2010 385 TDC Tele Danmark
34984 457 97 137 Tellcom Iletisim Hizmetleri
8866 440 133 23 Bulgarian Telecommunication C
9198 432 266 14 Kazakhtelecom Corporate Sales
8551 404 355 38 Bezeq International
12479 403 577 6 Uni2 Autonomous System
702 402 1851 315 UUNET - Commercial IP service
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 1349 251 167 TVCABLE BOGOTA
8151 1328 2591 363 Uninet S.A. de C.V.
28573 1231 951 79 Types of queries are: POCs, o
6503 1149 355 80 AVANTEL, S.A.
7303 884 461 112 Telecom Argentina Stet-France
14420 603 50 88 Types of queries are: POCs, o
22047 566 310 15 Types of queries are: POCs, o
3816 500 218 99 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
27947 457 53 47 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 791 445 11 TEDATA
24863 755 147 40 LINKdotNET AS number
36992 634 281 155 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 216 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
29571 202 19 13 Ci Telecom Autonomous system
33776 184 12 14 Starcomms Nigeria Limited
2018 166 277 64 TENET-1
16637 164 440 89 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 3713 3855 266 bellsouth.net, inc.
4323 2640 1091 401 Time Warner Telecom
19262 1839 4941 287 Verizon Global Networks
1785 1789 697 132 AppliedTheory Corporation
4766 1755 9484 512 Korea Telecom (KIX)
20115 1560 1533 641 Charter Communications
7545 1547 298 75 TPG Internet Pty Ltd
6478 1451 288 74 AT&T Worldnet Services
17974 1412 459 28 PT TELEKOMUNIKASI INDONESIA
4755 1393 376 156 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 2640 2239 Time Warner Telecom
1785 1789 1657 AppliedTheory Corporation
19262 1839 1552 Verizon Global Networks
7545 1547 1472 TPG Internet Pty Ltd
17974 1412 1384 PT TELEKOMUNIKASI INDONESIA
6478 1451 1377 AT&T Worldnet Services
4766 1755 1243 Korea Telecom (KIX)
4755 1393 1237 Videsh Sanchar Nigam Ltd. Aut
22773 1268 1195 Cox Communications, Inc.
10620 1349 1182 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 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 4323 Time Warner Telecom
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 12.39.155.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
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
5.0.0.0/8 237 Merit Network
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
37.0.0.0/16 12654 RIPE NCC RIS Project
37.0.0.0/8 237 Merit Network
37.1.0.0/21 12654 RIPE NCC RIS Project
37.1.24.0/24 12654 RIPE NCC RIS Project
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 /8:26 /9:10 /10:25 /11:71 /12:215
/13:438 /14:763 /15:1376 /16:11570 /17:5831 /18:9583
/19:19233 /20:24842 /21:24853 /22:32738 /23:31852 /24:180638
/25:361 /26:364 /27:202 /28:375 /29:300 /30:679
/31:44 /32:642
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2292 3713 bellsouth.net, inc.
4323 1426 2640 Time Warner Telecom
6478 1407 1451 AT&T Worldnet Services
10620 1240 1349 TVCABLE BOGOTA
11492 1214 1258 Cable One
18566 1098 1117 Covad Communications
7011 1068 1171 Citizens Utilities
1785 1060 1789 AppliedTheory Corporation
19262 952 1839 Verizon Global Networks
6503 934 1149 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:162 2:40 4:17 5:1 8:328 12:2033
13:6 14:318 15:15 16:3 17:8 20:9
23:1 24:1477 27:538 32:128 33:5 34:2
36:1 37:1 38:688 40:101 41:2318 42:1
44:3 46:511 47:5 49:139 50:49 52:12
55:5 56:2 57:41 58:866 59:486 60:389
61:1115 62:1065 63:1939 64:3784 65:2350 66:4132
67:1788 68:1152 69:2983 70:759 71:390 72:2033
73:3 74:2349 75:302 76:336 77:866 78:696
79:446 80:1049 81:823 82:541 83:462 84:657
85:1062 86:528 87:757 88:349 89:1594 90:153
91:3416 92:487 93:1036 94:1193 95:760 96:412
97:248 98:756 99:33 101:25 107:3 108:79
109:866 110:465 111:697 112:310 113:363 114:491
115:625 116:895 117:675 118:631 119:1045 120:238
121:707 122:1595 123:1036 124:1257 125:1214 128:248
129:159 130:171 131:567 132:112 133:20 134:219
135:50 136:216 137:146 138:291 139:122 140:484
141:198 142:360 143:379 144:489 145:52 146:426
147:203 148:626 149:303 150:153 151:230 152:298
153:175 154:3 155:345 156:173 157:341 158:126
159:377 160:314 161:193 162:278 163:161 164:460
165:353 166:473 167:421 168:741 169:154 170:745
171:68 172:5 173:1225 174:507 175:308 176:1
177:3 178:739 180:750 182:395 183:248 184:235
186:923 187:773 188:889 189:1006 190:4343 192:5812
193:4827 194:3551 195:3073 196:1251 197:1 198:3559
199:3734 200:5602 201:1573 202:8426 203:8440 204:4068
205:2339 206:2585 207:2978 208:3887 209:3491 210:2633
211:1351 212:1904 213:1776 214:743 215:62 216:4865
217:1643 218:529 219:384 220:1201 221:442 222:317
223:88
End of report
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