Routing Table Report 00:00 GMT Wed 12 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: 345720
Prefixes after maximum aggregation: 155757
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 168305
Total ASes present in the Internet Routing Table: 35653
Prefixes per ASN: 9.70
Origin-only ASes present in the Internet Routing Table: 30695
Origin ASes announcing only one prefix: 14917
Transit ASes present in the Internet Routing Table: 4958
Transit-only ASes present in the Internet Routing Table: 120
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 32
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 389
Unregistered ASNs in the Routing Table: 150
Number of 32-bit ASNs allocated by the RIRs: 1003
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: 216
Number of addresses announced to Internet: 2433144218
Equivalent to 145 /8s, 6 /16s and 213 /24s
Percentage of available address space announced: 65.6
Percentage of allocated address space announced: 67.8
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 87.3
Total number of prefixes smaller than registry allocations: 142177
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 82861
Total APNIC prefixes after maximum aggregation: 27866
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 79848
Unique aggregates announced from the APNIC address blocks: 35396
APNIC Region origin ASes present in the Internet Routing Table: 4280
APNIC Prefixes per ASN: 18.66
APNIC Region origin ASes announcing only one prefix: 1225
APNIC Region transit ASes present in the Internet Routing Table: 676
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 579015105
Equivalent to 34 /8s, 131 /16s and 17 /24s
Percentage of available APNIC address space announced: 78.4
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, 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: 140546
Total ARIN prefixes after maximum aggregation: 72482
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 111391
Unique aggregates announced from the ARIN address blocks: 44176
ARIN Region origin ASes present in the Internet Routing Table: 14138
ARIN Prefixes per ASN: 7.88
ARIN Region origin ASes announcing only one prefix: 5405
ARIN Region transit ASes present in the Internet Routing Table: 1484
Average ARIN Region AS path length visible: 3.9
Max ARIN Region AS path length visible: 27
Number of ARIN addresses announced to Internet: 778335113
Equivalent to 46 /8s, 100 /16s and 115 /24s
Percentage of available ARIN address space announced: 65.3
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,
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: 83418
Total RIPE prefixes after maximum aggregation: 46092
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 76095
Unique aggregates announced from the RIPE address blocks: 47783
RIPE Region origin ASes present in the Internet Routing Table: 15200
RIPE Prefixes per ASN: 5.01
RIPE Region origin ASes announcing only one prefix: 7710
RIPE Region transit ASes present in the Internet Routing Table: 2391
Average RIPE Region AS path length visible: 4.5
Max RIPE Region AS path length visible: 28
Number of RIPE addresses announced to Internet: 454414245
Equivalent to 27 /8s, 21 /16s and 207 /24s
Percentage of available RIPE address space announced: 75.2
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: 31269
Total LACNIC prefixes after maximum aggregation: 7249
LACNIC Deaggregation factor: 4.31
Prefixes being announced from the LACNIC address blocks: 30019
Unique aggregates announced from the LACNIC address blocks: 15573
LACNIC Region origin ASes present in the Internet Routing Table: 1422
LACNIC Prefixes per ASN: 21.11
LACNIC Region origin ASes announcing only one prefix: 438
LACNIC Region transit ASes present in the Internet Routing Table: 254
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 22
Number of LACNIC addresses announced to Internet: 79017996
Equivalent to 4 /8s, 181 /16s and 184 /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: 7378
Total AfriNIC prefixes after maximum aggregation: 1952
AfriNIC Deaggregation factor: 3.78
Prefixes being announced from the AfriNIC address blocks: 5705
Unique aggregates announced from the AfriNIC address blocks: 1834
AfriNIC Region origin ASes present in the Internet Routing Table: 432
AfriNIC Prefixes per ASN: 13.21
AfriNIC Region origin ASes announcing only one prefix: 139
AfriNIC Region transit ASes present in the Internet Routing Table: 90
Average AfriNIC Region AS path length visible: 4.3
Max AfriNIC Region AS path length visible: 32
Number of AfriNIC addresses announced to Internet: 21663488
Equivalent to 1 /8s, 74 /16s and 143 /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 1754 9484 513 Korea Telecom (KIX)
7545 1561 299 77 TPG Internet Pty Ltd
17974 1415 459 28 PT TELEKOMUNIKASI INDONESIA
4755 1393 632 157 Videsh Sanchar Nigam Ltd. Aut
24560 1062 317 180 Bharti Airtel Ltd.
9583 1041 76 489 Sify Limited
17488 958 159 109 Hathway IP Over Cable Interne
18101 912 116 138 Reliance Infocom Ltd Internet
4808 908 1941 255 CNCGROUP IP network: China169
9829 855 723 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 3716 3855 266 bellsouth.net, inc.
4323 2643 1077 402 Time Warner Telecom
19262 1841 4941 286 Verizon Global Networks
1785 1786 697 133 AppliedTheory Corporation
20115 1557 1533 637 Charter Communications
6478 1444 287 79 AT&T Worldnet Services
7018 1370 5659 885 AT&T WorldNet Services
2386 1297 569 932 AT&T Data Communications Serv
11492 1283 234 74 Cable One
22773 1265 2864 74 Cox Communications, Inc.
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
286 965 710 153 KPNQwest Backbone AS
3292 503 2010 385 TDC Tele Danmark
6830 502 1763 308 UPC Distribution Services
9116 490 328 32 Goldenlines main autonomous s
34984 457 97 137 Tellcom Iletisim Hizmetleri
8866 440 133 23 Bulgarian Telecommunication C
9198 421 266 14 Kazakhtelecom Corporate Sales
8551 404 355 38 Bezeq International
12479 403 577 6 Uni2 Autonomous System
702 397 1849 311 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 1344 250 164 TVCABLE BOGOTA
8151 1342 2588 362 Uninet S.A. de C.V.
28573 1202 945 100 Types of queries are: POCs, o
6503 1201 355 79 AVANTEL, S.A.
7303 856 459 112 Telecom Argentina Stet-France
14420 597 50 86 Types of queries are: POCs, o
22047 566 310 15 Types of queries are: POCs, o
3816 493 216 102 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 455 33 33 Telefonica del Sur 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 826 445 10 TEDATA
24863 664 147 38 LINKdotNET AS number
36992 651 283 155 Etisalat MISR
3741 263 987 225 The Internet Solution
24835 219 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
29571 199 19 11 Ci Telecom Autonomous system
2018 198 277 64 TENET-1
33776 184 12 14 Starcomms Nigeria Limited
16637 157 423 87 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 3716 3855 266 bellsouth.net, inc.
4323 2643 1077 402 Time Warner Telecom
19262 1841 4941 286 Verizon Global Networks
1785 1786 697 133 AppliedTheory Corporation
4766 1754 9484 513 Korea Telecom (KIX)
7545 1561 299 77 TPG Internet Pty Ltd
20115 1557 1533 637 Charter Communications
6478 1444 287 79 AT&T Worldnet Services
17974 1415 459 28 PT TELEKOMUNIKASI INDONESIA
4755 1393 632 157 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 2643 2241 Time Warner Telecom
1785 1786 1653 AppliedTheory Corporation
19262 1841 1555 Verizon Global Networks
7545 1561 1484 TPG Internet Pty Ltd
17974 1415 1387 PT TELEKOMUNIKASI INDONESIA
6478 1444 1365 AT&T Worldnet Services
4766 1754 1241 Korea Telecom (KIX)
4755 1393 1236 Videsh Sanchar Nigam Ltd. Aut
11492 1283 1209 Cable One
22773 1265 1191 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 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
36.126.8.255/8 53631 Ottawa Catholic School Board
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 /12:214
/13:437 /14:762 /15:1378 /16:11548 /17:5791 /18:9542
/19:19223 /20:24792 /21:24753 /22:32650 /23:31667 /24:179889
/25:353 /26:367 /27:192 /28:365 /29:300 /30:681
/31:44 /32:640
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2295 3716 bellsouth.net, inc.
4323 1428 2643 Time Warner Telecom
6478 1400 1444 AT&T Worldnet Services
11492 1238 1283 Cable One
10620 1236 1344 TVCABLE BOGOTA
18566 1076 1095 Covad Communications
7011 1073 1176 Citizens Utilities
1785 1060 1786 AppliedTheory Corporation
6503 986 1201 AVANTEL, S.A.
19262 955 1841 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:157 2:37 4:16 5:1 8:326 12:2031
13:6 14:301 15:15 16:3 17:8 20:9
23:1 24:1486 27:539 32:137 33:5 34:2
36:1 37:1 38:686 40:101 41:2316 42:1
44:3 46:489 47:5 49:133 50:44 52:12
55:5 56:2 57:41 58:865 59:504 60:385
61:1107 62:1078 63:1940 64:3760 65:2338 66:4130
67:1796 68:1150 69:2945 70:756 71:389 72:1999
73:3 74:2342 75:299 76:333 77:866 78:694
79:445 80:1046 81:825 82:549 83:457 84:655
85:1066 86:525 87:751 88:351 89:1586 90:152
91:3407 92:485 93:1032 94:1192 95:750 96:412
97:247 98:751 99:33 100:1 101:17 107:3
108:80 109:858 110:463 111:682 112:310 113:362
114:491 115:635 116:890 117:675 118:629 119:1029
120:196 121:705 122:1570 123:1032 124:1249 125:1215
128:232 129:159 130:171 131:565 132:110 133:20
134:214 135:50 136:212 137:145 138:291 139:123
140:485 141:197 142:360 143:368 144:489 145:52
146:426 147:202 148:626 149:303 150:153 151:230
152:297 153:173 154:3 155:372 156:164 157:340
158:126 159:371 160:316 161:197 162:277 163:161
164:461 165:352 166:473 167:419 168:735 169:154
170:729 171:68 172:2 173:1201 174:503 175:307
176:1 177:3 178:716 180:743 182:386 183:256
184:231 186:899 187:754 188:875 189:1047 190:4290
192:5807 193:4810 194:3537 195:3047 196:1205 197:1
198:3551 199:3726 200:5601 201:1566 202:8403 203:8437
204:4059 205:2338 206:2582 207:2977 208:3884 209:3486
210:2605 211:1347 212:1906 213:1759 214:743 215:62
216:4867 217:1637 218:522 219:386 220:1194 221:446
222:320 223:85
End of report
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