Routing Table Report 00:00 GMT Sat 06 Aug, 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: 369835
Prefixes after maximum aggregation: 166964
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 182012
Total ASes present in the Internet Routing Table: 38405
Prefixes per ASN: 9.63
Origin-only ASes present in the Internet Routing Table: 31903
Origin ASes announcing only one prefix: 15333
Transit ASes present in the Internet Routing Table: 5198
Transit-only ASes present in the Internet Routing Table: 147
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 4132
Unregistered ASNs in the Routing Table: 598
Number of 32-bit ASNs allocated by the RIRs: 1620
Number of 32-bit ASNs visible in the Routing Table: 1304
Prefixes from 32-bit ASNs in the Routing Table: 3034
Special use prefixes present in the Routing Table: 79
Prefixes being announced from unallocated address space: 119
Number of addresses announced to Internet: 2490799103
Equivalent to 148 /8s, 118 /16s and 147 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.2
Total number of prefixes smaller than registry allocations: 153493
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89275
Total APNIC prefixes after maximum aggregation: 29138
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 85855
Unique aggregates announced from the APNIC address blocks: 37669
APNIC Region origin ASes present in the Internet Routing Table: 4512
APNIC Prefixes per ASN: 19.03
APNIC Region origin ASes announcing only one prefix: 1251
APNIC Region transit ASes present in the Internet Routing Table: 710
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 69
Number of APNIC addresses announced to Internet: 623309824
Equivalent to 37 /8s, 38 /16s and 244 /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, 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: 145298
Total ARIN prefixes after maximum aggregation: 75177
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 116816
Unique aggregates announced from the ARIN address blocks: 46811
ARIN Region origin ASes present in the Internet Routing Table: 14554
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5578
ARIN Region transit ASes present in the Internet Routing Table: 1521
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 803359000
Equivalent to 47 /8s, 226 /16s and 73 /24s
Percentage of available ARIN address space announced: 63.8
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: 89441
Total RIPE prefixes after maximum aggregation: 49707
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 81908
Unique aggregates announced from the RIPE address blocks: 53257
RIPE Region origin ASes present in the Internet Routing Table: 15862
RIPE Prefixes per ASN: 5.16
RIPE Region origin ASes announcing only one prefix: 7901
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: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 939
Number of RIPE addresses announced to Internet: 485385164
Equivalent to 28 /8s, 238 /16s and 99 /24s
Percentage of available RIPE address space announced: 78.2
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: 34277
Total LACNIC prefixes after maximum aggregation: 7604
LACNIC Deaggregation factor: 4.51
Prefixes being announced from the LACNIC address blocks: 33582
Unique aggregates announced from the LACNIC address blocks: 17316
LACNIC Region origin ASes present in the Internet Routing Table: 1493
LACNIC Prefixes per ASN: 22.49
LACNIC Region origin ASes announcing only one prefix: 448
LACNIC Region transit ASes present in the Internet Routing Table: 274
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: 280
Number of LACNIC addresses announced to Internet: 87526400
Equivalent to 5 /8s, 55 /16s and 140 /24s
Percentage of available LACNIC address space announced: 58.0
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: 8297
Total AfriNIC prefixes after maximum aggregation: 2000
AfriNIC Deaggregation factor: 4.15
Prefixes being announced from the AfriNIC address blocks: 6557
Unique aggregates announced from the AfriNIC address blocks: 2029
AfriNIC Region origin ASes present in the Internet Routing Table: 485
AfriNIC Prefixes per ASN: 13.52
AfriNIC Region origin ASes announcing only one prefix: 155
AfriNIC Region transit ASes present in the Internet Routing Table: 108
Average AfriNIC Region AS path length visible: 4.1
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 26921472
Equivalent to 1 /8s, 154 /16s and 202 /24s
Percentage of available AfriNIC address space announced: 40.1
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 1933 11070 648 Korea Telecom (KIX)
17974 1784 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1559 301 85 TPG Internet Pty Ltd
4755 1520 375 168 Videsh Sanchar Nigam Ltd. Aut
24560 1196 336 187 Bharti Airtel Ltd.
9829 1114 929 42 BSNL National Internet Backbo
9583 1070 78 491 Sify Limited
4808 1033 2111 294 CNCGROUP IP network: China169
7552 999 1062 11 Vietel Corporation
17488 995 188 123 Hathway IP Over Cable Interne
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 3584 3817 231 bellsouth.net, inc.
18566 1913 365 240 Covad Communications
1785 1816 681 122 AppliedTheory Corporation
7029 1634 1023 206 Windstream Communications Inc
4323 1615 1098 400 Time Warner Telecom
20115 1591 1538 623 Charter Communications
19262 1413 4792 392 Verizon Global Networks
22773 1405 2900 90 Cox Communications, Inc.
7018 1367 7069 895 AT&T WorldNet Services
2386 1254 520 903 AT&T Data Communications Serv
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 1032 797 189 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 534 106 185 Tellcom Iletisim Hizmetleri
3292 521 2080 405 TDC Tele Danmark
6830 512 1788 316 UPC Distribution Services
20940 471 134 364 Akamai Technologies European
12479 455 593 7 Uni2 Autonomous System
8866 454 133 26 Bulgarian Telecommunication C
29049 433 32 54 AzerSat LLC.
3320 424 8151 370 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 1565 289 163 TVCABLE BOGOTA
8151 1392 2748 354 Uninet S.A. de C.V.
28573 1266 996 67 Types of queries are: POCs, o
7303 1044 577 163 Telecom Argentina Stet-France
6503 768 451 79 AVANTEL, S.A.
14420 703 56 84 Types of queries are: POCs, o
22047 578 322 17 Types of queries are: POCs, o
10481 548 430 20 Prima S.A.
3816 532 232 97 COLOMBIA TELECOMUNICACIONES S
7738 516 986 31 Telecomunicacoes da Bahia 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 802 147 41 LINKdotNET AS number
8452 799 445 11 TEDATA
15475 512 74 8 Nile Online
36992 306 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 260 519 14 Itissalat Al-MAGHRIB
15706 230 32 6 Sudatel Internet Exchange Aut
33776 229 13 8 Starcomms Nigeria Limited
24835 176 78 10 RAYA Telecom - Egypt
29571 159 17 12 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 3584 3817 231 bellsouth.net, inc.
23456 3034 729 1626 >>UNKNOWN<<
4766 1933 11070 648 Korea Telecom (KIX)
18566 1913 365 240 Covad Communications
1785 1816 681 122 AppliedTheory Corporation
17974 1784 516 31 PT TELEKOMUNIKASI INDONESIA
7029 1634 1023 206 Windstream Communications Inc
4323 1615 1098 400 Time Warner Telecom
20115 1591 1538 623 Charter Communications
10620 1565 289 163 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 1784 1753 PT TELEKOMUNIKASI INDONESIA
1785 1816 1694 AppliedTheory Corporation
18566 1913 1673 Covad Communications
7545 1559 1474 TPG Internet Pty Ltd
7029 1634 1428 Windstream Communications Inc
23456 3034 1408 >>UNKNOWN<<
10620 1565 1402 TVCABLE BOGOTA
4755 1520 1352 Videsh Sanchar Nigam Ltd. Aut
22773 1405 1315 Cox Communications, Inc.
4766 1933 1285 Korea Telecom (KIX)
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 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
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
31.192.96.0/21 44611 Talk Internet
31.209.136.0/21 51896 Hestaleit ehf
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 /8:21 /9:12 /10:27 /11:80 /12:233
/13:465 /14:806 /15:1438 /16:12168 /17:6154 /18:10195
/19:20047 /20:27467 /21:26885 /22:35334 /23:34601 /24:192296
/25:60 /26:68 /27:100 /28:220 /29:66 /30:519
/31:88 /32:485
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2212 3584 bellsouth.net, inc.
18566 1869 1913 Covad Communications
23456 1494 3034 >>UNKNOWN<<
10620 1460 1565 TVCABLE BOGOTA
7029 1317 1634 Windstream Communications Inc
11492 1096 1142 Cable One
7011 1058 1160 Citizens Utilities
1785 1053 1816 AppliedTheory Corporation
6478 932 960 AT&T Worldnet Services
22773 904 1405 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:348 2:47 4:19 5:1 6:3 8:340
12:1964 13:1 14:504 15:15 16:3 17:5
20:10 23:19 24:1683 27:863 31:517 32:149
33:4 34:2 36:4 38:729 40:106 41:2571
42:37 44:3 46:1074 47:3 49:202 50:384
52:13 54:2 55:4 56:2 57:45 58:867
59:493 60:378 61:1174 62:1070 63:1954 64:4053
65:2300 66:3951 67:1920 68:1277 69:3151 70:820
71:373 72:1898 73:1 74:2478 75:341 76:348
77:863 78:707 79:485 80:1128 81:842 82:519
83:471 84:691 85:1081 86:533 87:842 88:338
89:1558 90:224 91:4009 92:526 93:1131 94:1336
95:871 96:424 97:265 98:934 99:37 101:84
103:186 106:79 107:30 108:80 109:1046 110:623
111:723 112:307 113:408 114:562 115:674 116:1009
117:668 118:864 119:1185 120:210 121:697 122:1614
123:990 124:1372 125:1290 128:247 129:174 130:171
131:580 132:102 133:21 134:215 135:52 136:215
137:138 138:296 139:128 140:483 141:271 142:383
143:436 144:487 145:58 146:456 147:224 148:682
149:252 150:156 151:190 152:347 153:182 154:5
155:401 156:199 157:325 158:139 159:457 160:319
161:206 162:310 163:163 164:513 165:396 166:533
167:436 168:743 169:154 170:837 171:81 172:1
173:1644 174:621 175:393 176:147 177:195 178:1017
180:928 181:26 182:513 183:237 184:361 185:1
186:1349 187:750 188:915 189:972 190:5097 192:5953
193:4993 194:3553 195:3139 196:1209 197:113 198:3602
199:4029 200:5543 201:1476 202:8438 203:8463 204:4261
205:2336 206:2736 207:2813 208:4118 209:3496 210:2713
211:1414 212:2138 213:1770 214:792 215:70 216:4949
217:1636 218:532 219:349 220:1208 221:486 222:360
223:239
End of report
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