Routing Table Report 00:00 GMT Thu 28 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: 371008
Prefixes after maximum aggregation: 167242
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 181102
Total ASes present in the Internet Routing Table: 38333
Prefixes per ASN: 9.68
Origin-only ASes present in the Internet Routing Table: 31819
Origin ASes announcing only one prefix: 15264
Transit ASes present in the Internet Routing Table: 5224
Transit-only ASes present in the Internet Routing Table: 135
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 35
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 4093
Unregistered ASNs in the Routing Table: 587
Number of 32-bit ASNs allocated by the RIRs: 1594
Number of 32-bit ASNs visible in the Routing Table: 1290
Prefixes from 32-bit ASNs in the Routing Table: 2978
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 118
Number of addresses announced to Internet: 2487890494
Equivalent to 148 /8s, 74 /16s and 50 /24s
Percentage of available address space announced: 67.1
Percentage of allocated address space announced: 67.1
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: 154433
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89342
Total APNIC prefixes after maximum aggregation: 29290
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 86071
Unique aggregates announced from the APNIC address blocks: 37458
APNIC Region origin ASes present in the Internet Routing Table: 4507
APNIC Prefixes per ASN: 19.10
APNIC Region origin ASes announcing only one prefix: 1260
APNIC Region transit ASes present in the Internet Routing Table: 706
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 63
Number of APNIC addresses announced to Internet: 622467072
Equivalent to 37 /8s, 26 /16s and 24 /24s
Percentage of available APNIC address space announced: 78.9
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: 145644
Total ARIN prefixes after maximum aggregation: 75272
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 117128
Unique aggregates announced from the ARIN address blocks: 46692
ARIN Region origin ASes present in the Internet Routing Table: 14535
ARIN Prefixes per ASN: 8.06
ARIN Region origin ASes announcing only one prefix: 5563
ARIN Region transit ASes present in the Internet Routing Table: 1506
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 35
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 803214232
Equivalent to 47 /8s, 224 /16s and 19 /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: 90061
Total RIPE prefixes after maximum aggregation: 49778
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 82664
Unique aggregates announced from the RIPE address blocks: 52832
RIPE Region origin ASes present in the Internet Routing Table: 15848
RIPE Prefixes per ASN: 5.22
RIPE Region origin ASes announcing only one prefix: 7844
RIPE Region transit ASes present in the Internet Routing Table: 2548
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 25
Number of RIPE region 32-bit ASNs visible in the Routing Table: 938
Number of RIPE addresses announced to Internet: 485010828
Equivalent to 28 /8s, 232 /16s and 173 /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: 34268
Total LACNIC prefixes after maximum aggregation: 7651
LACNIC Deaggregation factor: 4.48
Prefixes being announced from the LACNIC address blocks: 33462
Unique aggregates announced from the LACNIC address blocks: 17255
LACNIC Region origin ASes present in the Internet Routing Table: 1491
LACNIC Prefixes per ASN: 22.44
LACNIC Region origin ASes announcing only one prefix: 442
LACNIC Region transit ASes present in the Internet Routing Table: 276
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 274
Number of LACNIC addresses announced to Internet: 86996992
Equivalent to 5 /8s, 47 /16s and 120 /24s
Percentage of available LACNIC address space announced: 57.6
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: 8429
Total AfriNIC prefixes after maximum aggregation: 1977
AfriNIC Deaggregation factor: 4.26
Prefixes being announced from the AfriNIC address blocks: 6515
Unique aggregates announced from the AfriNIC address blocks: 2021
AfriNIC Region origin ASes present in the Internet Routing Table: 479
AfriNIC Prefixes per ASN: 13.60
AfriNIC Region origin ASes announcing only one prefix: 155
AfriNIC Region transit ASes present in the Internet Routing Table: 104
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 3
Number of AfriNIC addresses announced to Internet: 25760768
Equivalent to 1 /8s, 137 /16s and 20 /24s
Percentage of available AfriNIC address space announced: 38.4
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 1923 11037 642 Korea Telecom (KIX)
17974 1780 508 32 PT TELEKOMUNIKASI INDONESIA
7545 1555 301 85 TPG Internet Pty Ltd
4755 1505 375 168 Videsh Sanchar Nigam Ltd. Aut
7552 1271 1064 7 Vietel Corporation
24560 1163 338 182 Bharti Airtel Ltd.
9829 1119 936 41 BSNL National Internet Backbo
9583 1075 80 510 Sify Limited
17488 981 188 113 Hathway IP Over Cable Interne
4808 938 1984 275 CNCGROUP IP network: China169
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 3616 3818 237 bellsouth.net, inc.
18566 1957 372 223 Covad Communications
1785 1811 681 122 AppliedTheory Corporation
7029 1806 992 282 Windstream Communications Inc
4323 1615 1098 402 Time Warner Telecom
20115 1590 1538 623 Charter Communications
19262 1412 4760 392 Verizon Global Networks
7018 1367 7085 894 AT&T WorldNet Services
22773 1354 2897 88 Cox Communications, Inc.
2386 1257 520 906 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 797 186 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 533 106 186 Tellcom Iletisim Hizmetleri
3292 519 2078 403 TDC Tele Danmark
6830 514 1788 317 UPC Distribution Services
20940 468 134 359 Akamai Technologies European
8866 456 133 26 Bulgarian Telecommunication C
12479 453 593 7 Uni2 Autonomous System
29049 431 31 49 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 1561 287 164 TVCABLE BOGOTA
8151 1389 2727 358 Uninet S.A. de C.V.
28573 1283 995 78 Types of queries are: POCs, o
7303 1034 545 175 Telecom Argentina Stet-France
6503 757 451 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
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 798 147 35 LINKdotNET AS number
8452 794 445 11 TEDATA
15475 510 74 8 Nile Online
16637 305 441 88 Johnnic e-Ventures
3741 265 937 226 The Internet Solution
6713 260 519 14 Itissalat Al-MAGHRIB
36992 257 415 15 Etisalat MISR
33776 226 13 5 Starcomms Nigeria Limited
15706 198 32 6 Sudatel Internet Exchange Aut
24835 177 78 10 RAYA Telecom - Egypt
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 3616 3818 237 bellsouth.net, inc.
23456 2978 713 1594 >>UNKNOWN<<
18566 1957 372 223 Covad Communications
4766 1923 11037 642 Korea Telecom (KIX)
1785 1811 681 122 AppliedTheory Corporation
7029 1806 992 282 Windstream Communications Inc
17974 1780 508 32 PT TELEKOMUNIKASI INDONESIA
4323 1615 1098 402 Time Warner Telecom
20115 1590 1538 623 Charter Communications
10620 1561 287 164 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 1780 1748 PT TELEKOMUNIKASI INDONESIA
18566 1957 1734 Covad Communications
1785 1811 1689 AppliedTheory Corporation
7029 1806 1524 Windstream Communications Inc
7545 1555 1470 TPG Internet Pty Ltd
10620 1561 1397 TVCABLE BOGOTA
23456 2978 1384 >>UNKNOWN<<
4755 1505 1337 Videsh Sanchar Nigam Ltd. Aut
4766 1923 1281 Korea Telecom (KIX)
22773 1354 1266 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
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 /8:20 /9:12 /10:27 /11:80 /12:232
/13:465 /14:805 /15:1434 /16:12169 /17:6146 /18:10093
/19:20065 /20:27393 /21:26876 /22:35410 /23:34592 /24:192393
/25:386 /26:346 /27:178 /28:299 /29:231 /30:675
/31:63 /32:618
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2238 3616 bellsouth.net, inc.
18566 1907 1957 Covad Communications
7029 1486 1806 Windstream Communications Inc
23456 1476 2978 >>UNKNOWN<<
10620 1456 1561 TVCABLE BOGOTA
11492 1094 1140 Cable One
7011 1056 1158 Citizens Utilities
1785 1053 1811 AppliedTheory Corporation
6478 963 991 AT&T Worldnet Services
286 893 1032 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:340 2:72 4:20 5:1 6:3 8:339
12:1965 13:1 14:491 15:15 16:3 17:5
20:10 23:17 24:1683 27:852 31:514 32:135
33:4 34:2 36:4 38:730 40:104 41:2627
42:35 44:3 46:1058 47:3 49:204 50:370
52:13 54:2 55:4 56:2 57:44 58:866
59:487 60:378 61:1187 62:1064 63:1952 64:4060
65:2303 66:4000 67:1917 68:1301 69:3175 70:855
71:373 72:1899 73:1 74:2512 75:352 76:350
77:902 78:715 79:490 80:1120 81:880 82:518
83:472 84:697 85:1088 86:537 87:783 88:336
89:1579 90:224 91:3990 92:528 93:1076 94:1371
95:882 96:425 97:263 98:930 99:37 101:81
103:159 106:77 107:25 108:81 109:1030 110:617
111:716 112:301 113:409 114:564 115:684 116:1002
117:678 118:843 119:1176 120:313 121:691 122:1606
123:970 124:1312 125:1325 128:247 129:172 130:170
131:580 132:113 133:21 134:215 135:52 136:215
137:139 138:300 139:128 140:479 141:254 142:406
143:421 144:479 145:55 146:455 147:228 148:672
149:249 150:166 151:189 152:341 153:182 154:5
155:399 156:198 157:355 158:140 159:454 160:315
161:205 162:310 163:165 164:504 165:398 166:533
167:435 168:746 169:154 170:838 171:81 172:1
173:1636 174:611 175:385 176:146 177:179 178:1011
180:920 181:26 182:517 183:233 184:345 185:1
186:1314 187:762 188:896 189:952 190:5020 192:5944
193:5012 194:3577 195:3192 196:1223 197:42 198:3595
199:4008 200:5572 201:1480 202:8403 203:8463 204:4243
205:2340 206:2729 207:2815 208:4122 209:3527 210:2686
211:1458 212:2142 213:1817 214:785 215:70 216:4956
217:1643 218:551 219:351 220:1236 221:495 222:359
223:229
End of report
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