Routing Table Report 00:00 GMT Wed 16 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: 351007
Prefixes after maximum aggregation: 157673
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 171151
Total ASes present in the Internet Routing Table: 35873
Prefixes per ASN: 9.78
Origin-only ASes present in the Internet Routing Table: 30989
Origin ASes announcing only one prefix: 14911
Transit ASes present in the Internet Routing Table: 4884
Transit-only ASes present in the Internet Routing Table: 108
Average AS path length visible in the Internet Routing Table: 3.8
Max AS path length visible: 33
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 400
Unregistered ASNs in the Routing Table: 153
Number of 32-bit ASNs allocated by the RIRs: 1117
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: 205
Number of addresses announced to Internet: 2394871079
Equivalent to 142 /8s, 190 /16s and 213 /24s
Percentage of available address space announced: 64.6
Percentage of allocated address space announced: 64.6
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 87.9
Total number of prefixes smaller than registry allocations: 145104
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 84098
Total APNIC prefixes after maximum aggregation: 28181
APNIC Deaggregation factor: 2.98
Prefixes being announced from the APNIC address blocks: 80982
Unique aggregates announced from the APNIC address blocks: 35755
APNIC Region origin ASes present in the Internet Routing Table: 4313
APNIC Prefixes per ASN: 18.78
APNIC Region origin ASes announcing only one prefix: 1222
APNIC Region transit ASes present in the Internet Routing Table: 675
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 589192386
Equivalent to 35 /8s, 30 /16s and 92 /24s
Percentage of available APNIC address space announced: 74.7
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: 142325
Total ARIN prefixes after maximum aggregation: 73317
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 112909
Unique aggregates announced from the ARIN address blocks: 44849
ARIN Region origin ASes present in the Internet Routing Table: 14211
ARIN Prefixes per ASN: 7.95
ARIN Region origin ASes announcing only one prefix: 5389
ARIN Region transit ASes present in the Internet Routing Table: 1432
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 786747321
Equivalent to 46 /8s, 228 /16s and 207 /24s
Percentage of available ARIN address space announced: 62.5
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: 85044
Total RIPE prefixes after maximum aggregation: 46833
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 77577
Unique aggregates announced from the RIPE address blocks: 48842
RIPE Region origin ASes present in the Internet Routing Table: 15315
RIPE Prefixes per ASN: 5.07
RIPE Region origin ASes announcing only one prefix: 7729
RIPE Region transit ASes present in the Internet Routing Table: 2360
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 460100997
Equivalent to 27 /8s, 108 /16s and 149 /24s
Percentage of available RIPE address space announced: 74.1
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: 31843
Total LACNIC prefixes after maximum aggregation: 7424
LACNIC Deaggregation factor: 4.29
Prefixes being announced from the LACNIC address blocks: 30596
Unique aggregates announced from the LACNIC address blocks: 15962
LACNIC Region origin ASes present in the Internet Routing Table: 1432
LACNIC Prefixes per ASN: 21.37
LACNIC Region origin ASes announcing only one prefix: 441
LACNIC Region transit ASes present in the Internet Routing Table: 259
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 80831628
Equivalent to 4 /8s, 209 /16s and 100 /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: 7454
Total AfriNIC prefixes after maximum aggregation: 1806
AfriNIC Deaggregation factor: 4.13
Prefixes being announced from the AfriNIC address blocks: 5855
Unique aggregates announced from the AfriNIC address blocks: 1830
AfriNIC Region origin ASes present in the Internet Routing Table: 434
AfriNIC Prefixes per ASN: 13.49
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: 3.8
Max AfriNIC Region AS path length visible: 33
Number of AfriNIC addresses announced to Internet: 21840384
Equivalent to 1 /8s, 77 /16s and 66 /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 1800 9486 541 Korea Telecom (KIX)
7545 1627 301 84 TPG Internet Pty Ltd
4755 1415 637 164 Videsh Sanchar Nigam Ltd. Aut
17974 1404 459 29 PT TELEKOMUNIKASI INDONESIA
24560 1111 323 182 Bharti Airtel Ltd.
9583 1042 76 487 Sify Limited
4808 1004 2093 289 CNCGROUP IP network: China169
17488 967 162 104 Hathway IP Over Cable Interne
18101 927 117 141 Reliance Infocom Ltd Internet
9829 898 763 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 3697 3855 262 bellsouth.net, inc.
4323 2627 1125 405 Time Warner Telecom
19262 1843 4955 283 Verizon Global Networks
1785 1785 697 132 AppliedTheory Corporation
20115 1577 1537 646 Charter Communications
6478 1510 296 75 AT&T Worldnet Services
7018 1374 10811 891 AT&T WorldNet Services
2386 1301 554 938 AT&T Data Communications Serv
18566 1282 311 104 Covad Communications
11492 1276 236 75 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
286 981 713 158 KPNQwest Backbone AS
9116 545 328 32 Goldenlines main autonomous s
6830 512 1764 316 UPC Distribution Services
3292 499 1996 388 TDC Tele Danmark
34984 460 97 140 Tellcom Iletisim Hizmetleri
9198 449 266 14 Kazakhtelecom Corporate Sales
8866 441 133 23 Bulgarian Telecommunication C
20940 410 95 316 Akamai Technologies European
3320 405 7619 354 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 1373 255 166 TVCABLE BOGOTA
8151 1350 2653 362 Uninet S.A. de C.V.
28573 1237 961 82 Types of queries are: POCs, o
6503 1188 354 74 AVANTEL, S.A.
7303 900 464 141 Telecom Argentina Stet-France
14420 637 56 91 Types of queries are: POCs, o
22047 543 310 15 Types of queries are: POCs, o
3816 506 221 96 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
27947 467 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 763 147 39 LINKdotNET AS number
8452 747 445 11 TEDATA
36992 600 305 17 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 219 78 10 RAYA Telecom - Egypt
6713 205 199 12 Itissalat Al-MAGHRIB
15475 196 56 9 Nile Online
33776 194 12 15 Starcomms Nigeria Limited
29571 193 19 11 Ci Telecom Autonomous system
16637 150 422 84 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 3697 3855 262 bellsouth.net, inc.
4323 2627 1125 405 Time Warner Telecom
19262 1843 4955 283 Verizon Global Networks
4766 1800 9486 541 Korea Telecom (KIX)
1785 1785 697 132 AppliedTheory Corporation
7545 1627 301 84 TPG Internet Pty Ltd
20115 1577 1537 646 Charter Communications
6478 1510 296 75 AT&T Worldnet Services
4755 1415 637 164 Videsh Sanchar Nigam Ltd. Aut
17974 1404 459 29 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 2627 2222 Time Warner Telecom
1785 1785 1653 AppliedTheory Corporation
19262 1843 1560 Verizon Global Networks
7545 1627 1543 TPG Internet Pty Ltd
6478 1510 1435 AT&T Worldnet Services
17974 1404 1375 PT TELEKOMUNIKASI INDONESIA
4766 1800 1259 Korea Telecom (KIX)
4755 1415 1251 Videsh Sanchar Nigam Ltd. Aut
10620 1373 1207 TVCABLE BOGOTA
11492 1276 1201 Cable One
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
5.1.0.0/21 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
37.1.0.0/21 12654 RIPE NCC RIS Project
37.1.24.0/24 12654 RIPE NCC RIS Project
39.0.0.0/8 237 Merit Network
41.57.192.0/18 22750 BCSNET
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 /9:10 /10:26 /11:73 /12:215
/13:445 /14:769 /15:1389 /16:11609 /17:5883 /18:9623
/19:19345 /20:25046 /21:25180 /22:33338 /23:32157 /24:183112
/25:382 /26:353 /27:200 /28:336 /29:213 /30:603
/31:46 /32:633
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2280 3697 bellsouth.net, inc.
6478 1464 1510 AT&T Worldnet Services
4323 1416 2627 Time Warner Telecom
10620 1264 1373 TVCABLE BOGOTA
18566 1260 1282 Covad Communications
11492 1233 1276 Cable One
7011 1060 1163 Citizens Utilities
1785 1054 1785 AppliedTheory Corporation
6503 969 1188 AVANTEL, S.A.
19262 954 1843 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:184 2:59 4:17 5:1 8:334 12:2034
13:1 14:414 15:15 16:3 17:8 20:9
23:1 24:1498 27:587 32:120 33:4 34:2
37:1 38:703 40:101 41:2320 44:3 46:607
47:4 49:143 50:92 52:12 55:6 56:2
57:43 58:866 59:478 60:391 61:1115 62:1075
63:1949 64:3809 65:2362 66:4174 67:1808 68:1183
69:3016 70:779 71:407 72:2044 73:3 74:2375
75:304 76:354 77:882 78:711 79:462 80:1059
81:855 82:538 83:488 84:651 85:1082 86:555
87:778 88:359 89:1602 90:156 91:3461 92:495
93:1055 94:1210 95:777 96:454 97:251 98:792
99:33 101:30 107:3 108:88 109:969 110:479
111:702 112:311 113:352 114:499 115:656 116:912
117:682 118:668 119:1011 120:242 121:703 122:1634
123:1052 124:1300 125:1237 128:267 129:159 130:170
131:569 132:109 133:20 134:219 135:49 136:215
137:146 138:293 139:127 140:493 141:203 142:360
143:387 144:487 145:51 146:431 147:211 148:637
149:274 150:162 151:230 152:306 153:180 154:3
155:350 156:176 157:343 158:129 159:380 160:314
161:207 162:274 163:159 164:487 165:357 166:504
167:422 168:742 169:155 170:755 171:69 172:2
173:1332 174:531 175:306 176:1 177:7 178:784
180:813 182:358 183:247 184:276 186:1005 187:830
188:887 189:1043 190:4390 192:5839 193:4829 194:3557
195:3080 196:1186 197:3 198:3588 199:3836 200:5599
201:1592 202:8429 203:8473 204:4099 205:2341 206:2650
207:3086 208:3911 209:3495 210:2634 211:1335 212:1938
213:1777 214:765 215:62 216:4907 217:1638 218:538
219:378 220:1206 221:451 222:341 223:100
End of report
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