Routing Table Report 00:00 GMT Mon 11 Jul, 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: 368758
Prefixes after maximum aggregation: 166286
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 179951
Total ASes present in the Internet Routing Table: 38152
Prefixes per ASN: 9.67
Origin-only ASes present in the Internet Routing Table: 31729
Origin ASes announcing only one prefix: 15218
Transit ASes present in the Internet Routing Table: 5177
Transit-only ASes present in the Internet Routing Table: 132
Average AS path length visible in the Internet Routing Table: 4.1
Max AS path length visible: 30
Max AS path prepend of ASN (22394) 27
Prefixes from unregistered ASNs in the Routing Table: 3933
Unregistered ASNs in the Routing Table: 539
Number of 32-bit ASNs allocated by the RIRs: 1539
Number of 32-bit ASNs visible in the Routing Table: 1246
Prefixes from 32-bit ASNs in the Routing Table: 2893
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 120
Number of addresses announced to Internet: 2494416967
Equivalent to 148 /8s, 173 /16s and 200 /24s
Percentage of available address space announced: 67.3
Percentage of allocated address space announced: 67.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.1
Total number of prefixes smaller than registry allocations: 153659
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 88092
Total APNIC prefixes after maximum aggregation: 29136
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 84948
Unique aggregates announced from the APNIC address blocks: 37034
APNIC Region origin ASes present in the Internet Routing Table: 4484
APNIC Prefixes per ASN: 18.94
APNIC Region origin ASes announcing only one prefix: 1261
APNIC Region transit ASes present in the Internet Routing Table: 708
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 57
Number of APNIC addresses announced to Internet: 621498561
Equivalent to 37 /8s, 11 /16s and 80 /24s
Percentage of available APNIC address space announced: 78.8
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: 145173
Total ARIN prefixes after maximum aggregation: 74867
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 116786
Unique aggregates announced from the ARIN address blocks: 46657
ARIN Region origin ASes present in the Internet Routing Table: 14479
ARIN Prefixes per ASN: 8.07
ARIN Region origin ASes announcing only one prefix: 5522
ARIN Region transit ASes present in the Internet Routing Table: 1511
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 30
Number of ARIN region 32-bit ASNs visible in the Routing Table: 13
Number of ARIN addresses announced to Internet: 819649176
Equivalent to 48 /8s, 218 /16s and 218 /24s
Percentage of available ARIN address space announced: 65.1
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: 89871
Total RIPE prefixes after maximum aggregation: 49465
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 82499
Unique aggregates announced from the RIPE address blocks: 52634
RIPE Region origin ASes present in the Internet Routing Table: 15813
RIPE Prefixes per ASN: 5.22
RIPE Region origin ASes announcing only one prefix: 7841
RIPE Region transit ASes present in the Internet Routing Table: 2503
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 25
Number of RIPE region 32-bit ASNs visible in the Routing Table: 915
Number of RIPE addresses announced to Internet: 479411404
Equivalent to 28 /8s, 147 /16s and 60 /24s
Percentage of available RIPE address space announced: 77.2
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, 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: 34047
Total LACNIC prefixes after maximum aggregation: 7652
LACNIC Deaggregation factor: 4.45
Prefixes being announced from the LACNIC address blocks: 33146
Unique aggregates announced from the LACNIC address blocks: 16970
LACNIC Region origin ASes present in the Internet Routing Table: 1482
LACNIC Prefixes per ASN: 22.37
LACNIC Region origin ASes announcing only one prefix: 447
LACNIC Region transit ASes present in the Internet Routing Table: 266
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 20
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 257
Number of LACNIC addresses announced to Internet: 85907464
Equivalent to 5 /8s, 30 /16s and 216 /24s
Percentage of available LACNIC address space announced: 56.9
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: 8376
Total AfriNIC prefixes after maximum aggregation: 1978
AfriNIC Deaggregation factor: 4.23
Prefixes being announced from the AfriNIC address blocks: 6438
Unique aggregates announced from the AfriNIC address blocks: 1977
AfriNIC Region origin ASes present in the Internet Routing Table: 466
AfriNIC Prefixes per ASN: 13.82
AfriNIC Region origin ASes announcing only one prefix: 147
AfriNIC Region transit ASes present in the Internet Routing Table: 106
Average AfriNIC Region AS path length visible: 4.2
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 24291328
Equivalent to 1 /8s, 114 /16s and 168 /24s
Percentage of available AfriNIC address space announced: 36.2
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 1916 11069 639 Korea Telecom (KIX)
17974 1778 461 41 PT TELEKOMUNIKASI INDONESIA
7545 1547 301 85 TPG Internet Pty Ltd
4755 1496 375 169 Videsh Sanchar Nigam Ltd. Aut
24560 1154 336 187 Bharti Airtel Ltd.
9829 1104 922 46 BSNL National Internet Backbo
9583 1059 78 504 Sify Limited
4808 1022 2060 289 CNCGROUP IP network: China169
17488 979 186 105 Hathway IP Over Cable Interne
18101 932 116 139 Reliance Infocom Ltd Internet
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 3605 3819 245 bellsouth.net, inc.
18566 1957 372 223 Covad Communications
1785 1807 681 122 AppliedTheory Corporation
4323 1655 1098 400 Time Warner Telecom
20115 1593 1532 632 Charter Communications
19262 1430 4778 393 Verizon Global Networks
7018 1379 7086 904 AT&T WorldNet Services
7029 1362 967 207 Windstream Communications Inc
22773 1350 2897 88 Cox Communications, Inc.
6478 1346 251 618 AT&T Worldnet Services
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 1039 798 190 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 536 106 184 Tellcom Iletisim Hizmetleri
3292 518 2076 398 TDC Tele Danmark
6830 513 1780 317 UPC Distribution Services
20940 462 132 356 Akamai Technologies European
12479 453 593 7 Uni2 Autonomous System
8866 449 133 25 Bulgarian Telecommunication C
29049 441 33 45 AzerSat LLC.
3320 422 8151 369 Deutsche Telekom AG
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 1543 282 158 TVCABLE BOGOTA
8151 1424 2727 352 Uninet S.A. de C.V.
28573 1272 995 78 Types of queries are: POCs, o
7303 1003 512 178 Telecom Argentina Stet-France
6503 757 354 75 AVANTEL, S.A.
14420 689 55 83 Types of queries are: POCs, o
22047 576 322 17 Types of queries are: POCs, o
10481 548 430 20 Prima S.A.
3816 534 230 97 COLOMBIA TELECOMUNICACIONES S
27947 521 54 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
24863 788 147 36 LINKdotNET AS number
8452 778 445 11 TEDATA
15475 514 74 8 Nile Online
36992 315 415 14 Etisalat MISR
16637 295 441 87 Johnnic e-Ventures
3741 261 937 223 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 217 12 14 Starcomms Nigeria Limited
24835 211 78 10 RAYA Telecom - Egypt
29571 158 17 11 Ci Telecom Autonomous system
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 3605 3819 245 bellsouth.net, inc.
23456 2893 702 1545 >>UNKNOWN<<
18566 1957 372 223 Covad Communications
4766 1916 11069 639 Korea Telecom (KIX)
1785 1807 681 122 AppliedTheory Corporation
17974 1778 461 41 PT TELEKOMUNIKASI INDONESIA
4323 1655 1098 400 Time Warner Telecom
20115 1593 1532 632 Charter Communications
7545 1547 301 85 TPG Internet Pty Ltd
10620 1543 282 158 TVCABLE BOGOTA
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
17974 1778 1737 PT TELEKOMUNIKASI INDONESIA
18566 1957 1734 Covad Communications
1785 1807 1685 AppliedTheory Corporation
7545 1547 1462 TPG Internet Pty Ltd
10620 1543 1385 TVCABLE BOGOTA
23456 2893 1348 >>UNKNOWN<<
4755 1496 1327 Videsh Sanchar Nigam Ltd. Aut
4766 1916 1277 Korea Telecom (KIX)
22773 1350 1262 Cox Communications, Inc.
4323 1655 1255 Time Warner Telecom
Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 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
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 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
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
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 /8:23 /9:12 /10:28 /11:81 /12:232
/13:468 /14:810 /15:1429 /16:12107 /17:6133 /18:10112
/19:20012 /20:27042 /21:26752 /22:35171 /23:34223 /24:191126
/25:388 /26:356 /27:182 /28:353 /29:291 /30:701
/31:63 /32:663
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2216 3605 bellsouth.net, inc.
18566 1907 1957 Covad Communications
10620 1438 1543 TVCABLE BOGOTA
23456 1420 2893 >>UNKNOWN<<
6478 1316 1346 AT&T Worldnet Services
11492 1075 1121 Cable One
7029 1059 1362 Windstream Communications Inc
7011 1054 1156 Citizens Utilities
1785 1053 1807 AppliedTheory Corporation
286 899 1039 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:324 2:72 4:20 5:1 6:3 8:338
12:1978 13:1 14:481 15:15 16:3 17:5
20:10 23:13 24:1683 27:815 31:493 32:135
33:4 34:2 36:4 38:746 40:103 41:2521
42:32 44:3 46:1037 47:3 49:198 50:442
52:13 54:2 55:4 56:2 57:45 58:862
59:479 60:386 61:1183 62:1059 63:1953 64:3993
65:2291 66:3913 67:1932 68:1270 69:3151 70:801
71:389 72:1914 73:2 74:2433 75:328 76:349
77:928 78:714 79:481 80:1123 81:846 82:515
83:463 84:700 85:1093 86:565 87:778 88:340
89:1564 90:223 91:3969 92:537 93:1068 94:1365
95:911 96:448 97:255 98:905 99:37 101:77
103:111 106:10 107:21 108:79 109:1033 110:623
111:704 112:303 113:407 114:548 115:676 116:980
117:665 118:852 119:1150 120:312 121:692 122:1597
123:965 124:1304 125:1231 128:247 129:175 130:168
131:577 132:112 133:21 134:213 135:48 136:210
137:136 138:299 139:129 140:477 141:242 142:407
143:417 144:482 145:54 146:451 147:224 148:679
149:248 150:162 151:189 152:331 153:182 154:4
155:394 156:198 157:354 158:138 159:448 160:311
161:201 162:308 163:165 164:505 165:388 166:531
167:433 168:739 169:155 170:842 171:78 172:1
173:1662 174:612 175:379 176:142 177:167 178:999
180:875 181:24 182:494 183:224 184:425 185:1
186:1278 187:706 188:882 189:942 190:4962 192:5929
193:4987 194:3577 195:3157 196:1246 197:41 198:3578
199:3970 200:5523 201:1488 202:8392 203:8409 204:4227
205:2346 206:2796 207:2823 208:4091 209:3536 210:2701
211:1470 212:2145 213:1789 214:777 215:69 216:5000
217:1652 218:548 219:362 220:1205 221:494 222:362
223:182
End of report
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