Routing Table Report 00:00 GMT Thu 17 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: 351363
Prefixes after maximum aggregation: 157822
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 171303
Total ASes present in the Internet Routing Table: 35895
Prefixes per ASN: 9.79
Origin-only ASes present in the Internet Routing Table: 31000
Origin ASes announcing only one prefix: 14928
Transit ASes present in the Internet Routing Table: 4895
Transit-only ASes present in the Internet Routing Table: 110
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 33
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 403
Unregistered ASNs in the Routing Table: 154
Number of 32-bit ASNs allocated by the RIRs: 1122
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: 203
Number of addresses announced to Internet: 2395063419
Equivalent to 142 /8s, 193 /16s and 196 /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: 88.0
Total number of prefixes smaller than registry allocations: 145226
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 84196
Total APNIC prefixes after maximum aggregation: 28179
APNIC Deaggregation factor: 2.99
Prefixes being announced from the APNIC address blocks: 81092
Unique aggregates announced from the APNIC address blocks: 35814
APNIC Region origin ASes present in the Internet Routing Table: 4315
APNIC Prefixes per ASN: 18.79
APNIC Region origin ASes announcing only one prefix: 1223
APNIC Region transit ASes present in the Internet Routing Table: 679
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 589254082
Equivalent to 35 /8s, 31 /16s and 77 /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: 142434
Total ARIN prefixes after maximum aggregation: 73382
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113005
Unique aggregates announced from the ARIN address blocks: 44865
ARIN Region origin ASes present in the Internet Routing Table: 14215
ARIN Prefixes per ASN: 7.95
ARIN Region origin ASes announcing only one prefix: 5393
ARIN Region transit ASes present in the Internet Routing Table: 1427
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 786783385
Equivalent to 46 /8s, 229 /16s and 92 /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: 85340
Total RIPE prefixes after maximum aggregation: 46927
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 77876
Unique aggregates announced from the RIPE address blocks: 48926
RIPE Region origin ASes present in the Internet Routing Table: 15333
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7734
RIPE Region transit ASes present in the Internet Routing Table: 2370
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 460172165
Equivalent to 27 /8s, 109 /16s and 171 /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: 31694
Total LACNIC prefixes after maximum aggregation: 7411
LACNIC Deaggregation factor: 4.28
Prefixes being announced from the LACNIC address blocks: 30581
Unique aggregates announced from the LACNIC address blocks: 15964
LACNIC Region origin ASes present in the Internet Routing Table: 1432
LACNIC Prefixes per ASN: 21.36
LACNIC Region origin ASes announcing only one prefix: 443
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: 80778496
Equivalent to 4 /8s, 208 /16s and 149 /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: 7451
Total AfriNIC prefixes after maximum aggregation: 1811
AfriNIC Deaggregation factor: 4.11
Prefixes being announced from the AfriNIC address blocks: 5883
Unique aggregates announced from the AfriNIC address blocks: 1833
AfriNIC Region origin ASes present in the Internet Routing Table: 430
AfriNIC Prefixes per ASN: 13.68
AfriNIC Region origin ASes announcing only one prefix: 134
AfriNIC Region transit ASes present in the Internet Routing Table: 95
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 33
Number of AfriNIC addresses announced to Internet: 21790464
Equivalent to 1 /8s, 76 /16s and 127 /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 1802 9487 543 Korea Telecom (KIX)
7545 1626 301 84 TPG Internet Pty Ltd
4755 1416 637 165 Videsh Sanchar Nigam Ltd. Aut
17974 1407 459 29 PT TELEKOMUNIKASI INDONESIA
24560 1112 323 182 Bharti Airtel Ltd.
9583 1043 77 487 Sify Limited
4808 1004 2093 289 CNCGROUP IP network: China169
17488 967 162 105 Hathway IP Over Cable Interne
18101 928 117 141 Reliance Infocom Ltd Internet
9829 893 762 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 3694 3855 262 bellsouth.net, inc.
4323 2627 1125 407 Time Warner Telecom
19262 1844 4955 284 Verizon Global Networks
1785 1785 697 132 AppliedTheory Corporation
20115 1577 1537 646 Charter Communications
6478 1510 295 79 AT&T Worldnet Services
7018 1371 6715 889 AT&T WorldNet Services
2386 1300 554 938 AT&T Data Communications Serv
18566 1293 311 114 Covad Communications
11492 1277 236 76 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
286 980 713 157 KPNQwest Backbone AS
9116 545 328 32 Goldenlines main autonomous s
6830 514 1764 318 UPC Distribution Services
3292 500 1996 389 TDC Tele Danmark
9198 466 267 15 Kazakhtelecom Corporate Sales
34984 464 98 143 Tellcom Iletisim Hizmetleri
8866 439 133 23 Bulgarian Telecommunication C
20940 414 97 319 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 1373 255 166 TVCABLE BOGOTA
8151 1349 2661 362 Uninet S.A. de C.V.
28573 1239 961 82 Types of queries are: POCs, o
6503 1188 354 74 AVANTEL, S.A.
7303 876 463 130 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 506 221 96 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
27947 465 53 50 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 807 445 11 TEDATA
24863 763 147 39 LINKdotNET AS number
36992 604 305 16 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 219 78 10 RAYA Telecom - Egypt
6713 205 199 12 Itissalat Al-MAGHRIB
33776 194 12 15 Starcomms Nigeria Limited
29571 192 17 11 Ci Telecom Autonomous system
15475 189 56 9 Nile Online
16637 151 422 86 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 3694 3855 262 bellsouth.net, inc.
4323 2627 1125 407 Time Warner Telecom
19262 1844 4955 284 Verizon Global Networks
4766 1802 9487 543 Korea Telecom (KIX)
1785 1785 697 132 AppliedTheory Corporation
7545 1626 301 84 TPG Internet Pty Ltd
20115 1577 1537 646 Charter Communications
6478 1510 295 79 AT&T Worldnet Services
4755 1416 637 165 Videsh Sanchar Nigam Ltd. Aut
17974 1407 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 2220 Time Warner Telecom
1785 1785 1653 AppliedTheory Corporation
19262 1844 1560 Verizon Global Networks
7545 1626 1542 TPG Internet Pty Ltd
6478 1510 1431 AT&T Worldnet Services
17974 1407 1378 PT TELEKOMUNIKASI INDONESIA
4766 1802 1259 Korea Telecom (KIX)
4755 1416 1251 Videsh Sanchar Nigam Ltd. Aut
10620 1373 1207 TVCABLE BOGOTA
11492 1277 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 /8:22 /9:10 /10:26 /11:73 /12:216
/13:445 /14:769 /15:1391 /16:11615 /17:5884 /18:9621
/19:19345 /20:25036 /21:25202 /22:33342 /23:32195 /24:183136
/25:353 /26:336 /27:214 /28:372 /29:320 /30:722
/31:47 /32:671
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2280 3694 bellsouth.net, inc.
6478 1464 1510 AT&T Worldnet Services
4323 1417 2627 Time Warner Telecom
18566 1271 1293 Covad Communications
10620 1264 1373 TVCABLE BOGOTA
11492 1234 1277 Cable One
7011 1060 1163 Citizens Utilities
1785 1054 1785 AppliedTheory Corporation
6503 969 1188 AVANTEL, S.A.
19262 954 1844 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:185 2:59 4:17 5:1 8:335 12:2034
13:1 14:414 15:15 16:3 17:8 20:9
23:1 24:1498 27:587 32:127 33:4 34:2
37:1 38:706 40:101 41:2324 44:3 46:602
47:4 49:147 50:93 52:12 55:2 56:2
57:43 58:866 59:477 60:391 61:1116 62:1075
63:1947 64:3819 65:2361 66:4179 67:1814 68:1183
69:3018 70:779 71:407 72:2042 73:3 74:2370
75:304 76:354 77:881 78:706 79:461 80:1067
81:858 82:535 83:481 84:646 85:1081 86:556
87:778 88:360 89:1614 90:146 91:3499 92:494
93:1052 94:1222 95:779 96:454 97:252 98:791
99:33 101:31 107:3 108:88 109:923 110:480
111:702 112:311 113:364 114:499 115:655 116:943
117:681 118:670 119:999 120:245 121:703 122:1632
123:1052 124:1300 125:1243 128:266 129:158 130:170
131:569 132:109 133:20 134:219 135:49 136:215
137:146 138:293 139:131 140:494 141:203 142:360
143:382 144:487 145:51 146:431 147:210 148:637
149:266 150:165 151:230 152:306 153:180 154:3
155:350 156:176 157:314 158:128 159:380 160:314
161:207 162:274 163:161 164:487 165:356 166:503
167:422 168:733 169:155 170:749 171:69 172:1
173:1335 174:531 175:306 176:1 177:9 178:783
180:810 182:363 183:247 184:276 186:1013 187:822
188:892 189:1040 190:4392 192:5841 193:4826 194:3555
195:3100 196:1168 197:3 198:3588 199:3840 200:5589
201:1594 202:8441 203:8471 204:4097 205:2344 206:2657
207:3084 208:3917 209:3498 210:2634 211:1336 212:1950
213:1758 214:755 215:62 216:4914 217:1633 218:542
219:378 220:1205 221:451 222:341 223:100
End of report
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