Routing Table Report 00:00 GMT Tue 02 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: 369739
Prefixes after maximum aggregation: 166980
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 181636
Total ASes present in the Internet Routing Table: 38348
Prefixes per ASN: 9.64
Origin-only ASes present in the Internet Routing Table: 31880
Origin ASes announcing only one prefix: 15301
Transit ASes present in the Internet Routing Table: 5173
Transit-only ASes present in the Internet Routing Table: 146
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 39
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 4058
Unregistered ASNs in the Routing Table: 581
Number of 32-bit ASNs allocated by the RIRs: 1608
Number of 32-bit ASNs visible in the Routing Table: 1295
Prefixes from 32-bit ASNs in the Routing Table: 2994
Special use prefixes present in the Routing Table: 79
Prefixes being announced from unallocated address space: 114
Number of addresses announced to Internet: 2489608455
Equivalent to 148 /8s, 100 /16s and 105 /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: 153360
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89291
Total APNIC prefixes after maximum aggregation: 29285
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 85946
Unique aggregates announced from the APNIC address blocks: 37648
APNIC Region origin ASes present in the Internet Routing Table: 4508
APNIC Prefixes per ASN: 19.07
APNIC Region origin ASes announcing only one prefix: 1257
APNIC Region transit ASes present in the Internet Routing Table: 709
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: 67
Number of APNIC addresses announced to Internet: 622752000
Equivalent to 37 /8s, 30 /16s and 113 /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: 145263
Total ARIN prefixes after maximum aggregation: 75092
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 116753
Unique aggregates announced from the ARIN address blocks: 46704
ARIN Region origin ASes present in the Internet Routing Table: 14538
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5563
ARIN Region transit ASes present in the Internet Routing Table: 1504
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: 803278104
Equivalent to 47 /8s, 225 /16s and 13 /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: 89367
Total RIPE prefixes after maximum aggregation: 49646
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 81870
Unique aggregates announced from the RIPE address blocks: 53094
RIPE Region origin ASes present in the Internet Routing Table: 15845
RIPE Prefixes per ASN: 5.17
RIPE Region origin ASes announcing only one prefix: 7888
RIPE Region transit ASes present in the Internet Routing Table: 2498
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 39
Number of RIPE region 32-bit ASNs visible in the Routing Table: 933
Number of RIPE addresses announced to Internet: 485013964
Equivalent to 28 /8s, 232 /16s and 185 /24s
Percentage of available RIPE address space announced: 78.1
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: 34334
Total LACNIC prefixes after maximum aggregation: 7658
LACNIC Deaggregation factor: 4.48
Prefixes being announced from the LACNIC address blocks: 33494
Unique aggregates announced from the LACNIC address blocks: 17291
LACNIC Region origin ASes present in the Internet Routing Table: 1491
LACNIC Prefixes per ASN: 22.46
LACNIC Region origin ASes announcing only one prefix: 442
LACNIC Region transit ASes present in the Internet Routing Table: 279
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 22
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 279
Number of LACNIC addresses announced to Internet: 87271688
Equivalent to 5 /8s, 51 /16s and 169 /24s
Percentage of available LACNIC address space announced: 57.8
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: 8269
Total AfriNIC prefixes after maximum aggregation: 1996
AfriNIC Deaggregation factor: 4.14
Prefixes being announced from the AfriNIC address blocks: 6564
Unique aggregates announced from the AfriNIC address blocks: 2031
AfriNIC Region origin ASes present in the Internet Routing Table: 477
AfriNIC Prefixes per ASN: 13.76
AfriNIC Region origin ASes announcing only one prefix: 151
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: 15
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 26909696
Equivalent to 1 /8s, 154 /16s and 156 /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 1935 11071 650 Korea Telecom (KIX)
17974 1780 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1558 301 86 TPG Internet Pty Ltd
4755 1519 379 171 Videsh Sanchar Nigam Ltd. Aut
24560 1195 336 187 Bharti Airtel Ltd.
9829 1114 929 42 BSNL National Internet Backbo
4808 1065 2113 293 CNCGROUP IP network: China169
9583 1057 77 496 Sify Limited
17488 989 193 118 Hathway IP Over Cable Interne
7552 952 1062 11 Vietel Corporation
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 3617 3818 236 bellsouth.net, inc.
18566 1913 365 241 Covad Communications
1785 1813 681 122 AppliedTheory Corporation
7029 1640 1023 206 Windstream Communications Inc
4323 1613 1098 400 Time Warner Telecom
20115 1591 1538 623 Charter Communications
19262 1413 4792 392 Verizon Global Networks
22773 1406 2900 90 Cox Communications, Inc.
7018 1369 7069 898 AT&T WorldNet Services
2386 1256 520 904 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 1037 797 190 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 534 106 185 Tellcom Iletisim Hizmetleri
3292 519 2078 403 TDC Tele Danmark
6830 513 1788 316 UPC Distribution Services
20940 466 133 359 Akamai Technologies European
8866 455 133 26 Bulgarian Telecommunication C
12479 455 593 7 Uni2 Autonomous System
29049 433 32 55 AzerSat LLC.
3320 425 8151 371 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 1544 286 167 TVCABLE BOGOTA
8151 1426 2730 354 Uninet S.A. de C.V.
28573 1270 996 67 Types of queries are: POCs, o
7303 1065 577 174 Telecom Argentina Stet-France
6503 774 451 79 AVANTEL, S.A.
14420 701 56 82 Types of queries are: POCs, o
22047 578 322 17 Types of queries are: POCs, o
10481 548 430 20 Prima S.A.
3816 534 232 96 COLOMBIA TELECOMUNICACIONES S
27947 524 54 49 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 799 445 11 TEDATA
24863 786 147 41 LINKdotNET AS number
15475 514 74 8 Nile Online
36992 314 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 260 519 14 Itissalat Al-MAGHRIB
33776 228 13 7 Starcomms Nigeria Limited
15706 180 32 6 Sudatel Internet Exchange Aut
24835 177 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 3617 3818 236 bellsouth.net, inc.
23456 2994 722 1607 >>UNKNOWN<<
4766 1935 11071 650 Korea Telecom (KIX)
18566 1913 365 241 Covad Communications
1785 1813 681 122 AppliedTheory Corporation
17974 1780 516 31 PT TELEKOMUNIKASI INDONESIA
7029 1640 1023 206 Windstream Communications Inc
4323 1613 1098 400 Time Warner Telecom
20115 1591 1538 623 Charter Communications
7545 1558 301 86 TPG Internet Pty Ltd
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 1780 1749 PT TELEKOMUNIKASI INDONESIA
1785 1813 1691 AppliedTheory Corporation
18566 1913 1672 Covad Communications
7545 1558 1472 TPG Internet Pty Ltd
7029 1640 1434 Windstream Communications Inc
23456 2994 1387 >>UNKNOWN<<
10620 1544 1377 TVCABLE BOGOTA
4755 1519 1348 Videsh Sanchar Nigam Ltd. Aut
22773 1406 1316 Cox Communications, Inc.
4766 1935 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
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 /8:21 /9:12 /10:27 /11:80 /12:233
/13:465 /14:804 /15:1432 /16:12171 /17:6149 /18:10125
/19:20054 /20:27371 /21:26807 /22:35325 /23:34552 /24:192301
/25:90 /26:85 /27:113 /28:287 /29:120 /30:537
/31:87 /32:491
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2240 3617 bellsouth.net, inc.
18566 1869 1913 Covad Communications
23456 1469 2994 >>UNKNOWN<<
10620 1439 1544 TVCABLE BOGOTA
7029 1320 1640 Windstream Communications Inc
11492 1096 1142 Cable One
7011 1057 1159 Citizens Utilities
1785 1053 1813 AppliedTheory Corporation
6478 967 995 AT&T Worldnet Services
22773 905 1406 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:342 2:53 4:20 5:1 6:3 8:342
12:1962 13:1 14:500 15:15 16:3 17:5
20:10 23:18 24:1685 27:858 31:514 32:149
33:4 34:2 36:4 38:730 40:104 41:2576
42:36 44:3 46:1055 47:3 49:200 50:375
52:13 54:2 55:5 56:2 57:44 58:869
59:488 60:378 61:1191 62:1078 63:1958 64:4052
65:2301 66:3954 67:1923 68:1293 69:3140 70:825
71:373 72:1893 73:1 74:2485 75:341 76:348
77:861 78:712 79:485 80:1128 81:879 82:510
83:472 84:699 85:1082 86:537 87:770 88:337
89:1558 90:224 91:3980 92:528 93:1129 94:1337
95:870 96:424 97:263 98:932 99:37 101:83
103:177 106:79 107:27 108:81 109:1042 110:621
111:720 112:305 113:410 114:560 115:677 116:1005
117:662 118:853 119:1188 120:316 121:688 122:1610
123:995 124:1373 125:1288 128:247 129:172 130:167
131:581 132:115 133:21 134:215 135:52 136:215
137:138 138:296 139:128 140:480 141:257 142:406
143:422 144:485 145:57 146:456 147:229 148:682
149:253 150:158 151:189 152:341 153:182 154:5
155:400 156:199 157:354 158:140 159:456 160:318
161:205 162:310 163:163 164:507 165:396 166:532
167:434 168:744 169:154 170:838 171:81 172:1
173:1637 174:613 175:390 176:149 177:188 178:1010
180:927 181:26 182:506 183:234 184:342 185:1
186:1310 187:763 188:906 189:969 190:5001 192:5946
193:5011 194:3555 195:3174 196:1205 197:108 198:3597
199:4014 200:5575 201:1476 202:8444 203:8455 204:4257
205:2348 206:2732 207:2823 208:4121 209:3494 210:2694
211:1459 212:2144 213:1809 214:789 215:70 216:4953
217:1637 218:550 219:348 220:1206 221:511 222:360
223:239
End of report
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