Routing Table Report 00:00 GMT Tue 25 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: 348587
Prefixes after maximum aggregation: 156323
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 169425
Total ASes present in the Internet Routing Table: 35728
Prefixes per ASN: 9.76
Origin-only ASes present in the Internet Routing Table: 30829
Origin ASes announcing only one prefix: 14900
Transit ASes present in the Internet Routing Table: 4899
Transit-only ASes present in the Internet Routing Table: 113
Average AS path length visible in the Internet Routing Table: 3.8
Max AS path length visible: 31
Max AS path prepend of ASN (16181) 22
Prefixes from unregistered ASNs in the Routing Table: 408
Unregistered ASNs in the Routing Table: 151
Number of 32-bit ASNs allocated by the RIRs: 1038
Prefixes from 32-bit ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 75
Prefixes being announced from unallocated address space: 217
Number of addresses announced to Internet: 2343718399
Equivalent to 139 /8s, 178 /16s and 77 /24s
Percentage of available address space announced: 63.2
Percentage of allocated address space announced: 65.3
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 87.9
Total number of prefixes smaller than registry allocations: 143493
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 83810
Total APNIC prefixes after maximum aggregation: 28008
APNIC Deaggregation factor: 2.99
Prefixes being announced from the APNIC address blocks: 80726
Unique aggregates announced from the APNIC address blocks: 35538
APNIC Region origin ASes present in the Internet Routing Table: 4298
APNIC Prefixes per ASN: 18.78
APNIC Region origin ASes announcing only one prefix: 1228
APNIC Region transit ASes present in the Internet Routing Table: 689
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 583442114
Equivalent to 34 /8s, 198 /16s and 158 /24s
Percentage of available APNIC address space announced: 79.0
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, 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: 141186
Total ARIN prefixes after maximum aggregation: 72725
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 111686
Unique aggregates announced from the ARIN address blocks: 44306
ARIN Region origin ASes present in the Internet Routing Table: 14140
ARIN Prefixes per ASN: 7.90
ARIN Region origin ASes announcing only one prefix: 5370
ARIN Region transit ASes present in the Internet Routing Table: 1435
Average ARIN Region AS path length visible: 3.5
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 746202505
Equivalent to 44 /8s, 122 /16s and 37 /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, 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: 84226
Total RIPE prefixes after maximum aggregation: 46405
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 76800
Unique aggregates announced from the RIPE address blocks: 48166
RIPE Region origin ASes present in the Internet Routing Table: 15261
RIPE Prefixes per ASN: 5.03
RIPE Region origin ASes announcing only one prefix: 7732
RIPE Region transit ASes present in the Internet Routing Table: 2362
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 31
Number of RIPE addresses announced to Internet: 456915849
Equivalent to 27 /8s, 59 /16s and 251 /24s
Percentage of available RIPE address space announced: 75.7
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: 31562
Total LACNIC prefixes after maximum aggregation: 7218
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 30367
Unique aggregates announced from the LACNIC address blocks: 15769
LACNIC Region origin ASes present in the Internet Routing Table: 1420
LACNIC Prefixes per ASN: 21.39
LACNIC Region origin ASes announcing only one prefix: 435
LACNIC Region transit ASes present in the Internet Routing Table: 254
Average LACNIC Region AS path length visible: 3.9
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 79600268
Equivalent to 4 /8s, 190 /16s and 154 /24s
Percentage of available LACNIC address space announced: 59.3
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: 7537
Total AfriNIC prefixes after maximum aggregation: 1848
AfriNIC Deaggregation factor: 4.08
Prefixes being announced from the AfriNIC address blocks: 5874
Unique aggregates announced from the AfriNIC address blocks: 1824
AfriNIC Region origin ASes present in the Internet Routing Table: 435
AfriNIC Prefixes per ASN: 13.50
AfriNIC Region origin ASes announcing only one prefix: 135
AfriNIC Region transit ASes present in the Internet Routing Table: 97
Average AfriNIC Region AS path length visible: 3.9
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 21654528
Equivalent to 1 /8s, 74 /16s and 108 /24s
Percentage of available AfriNIC address space announced: 43.0
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 1759 9484 515 Korea Telecom (KIX)
7545 1576 300 82 TPG Internet Pty Ltd
4755 1397 376 157 Videsh Sanchar Nigam Ltd. Aut
17974 1387 459 28 PT TELEKOMUNIKASI INDONESIA
24560 1095 317 181 Bharti Airtel Ltd.
9583 1044 76 487 Sify Limited
4808 983 2066 282 CNCGROUP IP network: China169
17488 964 162 103 Hathway IP Over Cable Interne
18101 920 116 140 Reliance Infocom Ltd Internet
9829 862 729 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 3710 3855 267 bellsouth.net, inc.
4323 2644 1093 403 Time Warner Telecom
19262 1839 4943 283 Verizon Global Networks
1785 1793 698 133 AppliedTheory Corporation
20115 1571 1533 641 Charter Communications
6478 1467 290 91 AT&T Worldnet Services
7018 1380 5692 894 AT&T WorldNet Services
2386 1300 554 936 AT&T Data Communications Serv
22773 1274 2864 77 Cox Communications, Inc.
11492 1258 234 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
286 971 710 153 KPNQwest Backbone AS
9116 522 328 32 Goldenlines main autonomous s
3292 504 2011 388 TDC Tele Danmark
6830 501 1763 307 UPC Distribution Services
9198 462 266 14 Kazakhtelecom Corporate Sales
34984 457 97 137 Tellcom Iletisim Hizmetleri
8866 439 133 23 Bulgarian Telecommunication C
12479 408 577 6 Uni2 Autonomous System
8551 404 355 38 Bezeq International
702 400 1819 313 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 1355 251 165 TVCABLE BOGOTA
8151 1335 2599 364 Uninet S.A. de C.V.
28573 1245 954 80 Types of queries are: POCs, o
6503 1150 355 79 AVANTEL, S.A.
7303 887 461 114 Telecom Argentina Stet-France
14420 604 50 89 Types of queries are: POCs, o
22047 567 310 15 Types of queries are: POCs, o
3816 509 220 100 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
27947 458 53 48 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 760 445 11 TEDATA
24863 755 147 40 LINKdotNET AS number
36992 676 361 20 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 216 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
2018 167 277 64 TENET-1
16637 163 425 91 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 3710 3855 267 bellsouth.net, inc.
4323 2644 1093 403 Time Warner Telecom
19262 1839 4943 283 Verizon Global Networks
1785 1793 698 133 AppliedTheory Corporation
4766 1759 9484 515 Korea Telecom (KIX)
7545 1576 300 82 TPG Internet Pty Ltd
20115 1571 1533 641 Charter Communications
6478 1467 290 91 AT&T Worldnet Services
4755 1397 376 157 Videsh Sanchar Nigam Ltd. Aut
17974 1387 459 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 2644 2241 Time Warner Telecom
1785 1793 1660 AppliedTheory Corporation
19262 1839 1556 Verizon Global Networks
7545 1576 1494 TPG Internet Pty Ltd
6478 1467 1376 AT&T Worldnet Services
17974 1387 1359 PT TELEKOMUNIKASI INDONESIA
4766 1759 1244 Korea Telecom (KIX)
4755 1397 1240 Videsh Sanchar Nigam Ltd. Aut
22773 1274 1197 Cox Communications, Inc.
10620 1355 1190 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 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
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
41.57.192.0/18 22750 BCSNET
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>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 /8:20 /9:10 /10:25 /11:71 /12:216
/13:439 /14:767 /15:1385 /16:11591 /17:5833 /18:9585
/19:19423 /20:24867 /21:24971 /22:32899 /23:32034 /24:181453
/25:362 /26:375 /27:199 /28:373 /29:299 /30:687
/31:46 /32:657
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2288 3710 bellsouth.net, inc.
4323 1428 2644 Time Warner Telecom
6478 1421 1467 AT&T Worldnet Services
10620 1246 1355 TVCABLE BOGOTA
11492 1214 1258 Cable One
18566 1118 1137 Covad Communications
7011 1068 1174 Citizens Utilities
1785 1061 1793 AppliedTheory Corporation
19262 952 1839 Verizon Global Networks
6503 935 1150 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:165 2:46 4:17 5:1 8:332 12:2038
13:6 14:377 15:15 16:3 17:8 20:9
23:1 24:1480 27:546 32:121 33:5 34:2
36:1 37:1 38:693 40:101 41:2324 42:1
44:3 46:517 47:5 49:145 50:56 52:12
55:6 56:2 57:41 58:868 59:485 60:391
61:1135 62:1041 63:1930 64:3780 65:2336 66:4098
67:1791 68:1152 69:2984 70:760 71:394 72:2039
73:3 74:2348 75:302 76:338 77:863 78:710
79:445 80:1045 81:826 82:540 83:468 84:661
85:1070 86:534 87:757 88:356 89:1601 90:158
91:3448 92:494 93:1061 94:1177 95:779 96:413
97:248 98:760 99:33 101:22 107:3 108:79
109:873 110:468 111:695 112:310 113:370 114:493
115:633 116:900 117:677 118:632 119:1037 120:239
121:710 122:1609 123:1045 124:1267 125:1213 128:248
129:159 130:171 131:578 132:110 133:20 134:219
135:49 136:213 137:145 138:293 139:136 140:486
141:198 142:362 143:383 144:487 145:51 146:425
147:204 148:625 149:273 150:153 151:230 152:303
153:175 154:3 155:346 156:173 157:342 158:126
159:377 160:314 161:200 162:278 163:159 164:470
165:353 166:601 167:421 168:745 169:154 170:747
171:68 172:2 173:1255 174:517 175:308 176:1
177:4 178:754 180:760 182:403 183:249 184:237
186:959 187:814 188:911 189:1043 190:4362 192:5817
193:4826 194:3549 195:3086 196:1253 197:2 198:3566
199:3756 200:5616 201:1582 202:8451 203:8443 204:4089
205:2345 206:2592 207:2972 208:3890 209:3470 210:2649
211:1336 212:1932 213:1772 214:755 215:61 216:4867
217:1631 218:550 219:375 220:1205 221:448 222:346
223:92
End of report
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