Routing Table Report 00:00 GMT Fri 16 Sep, 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: 375381
Prefixes after maximum aggregation: 168933
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 184804
Total ASes present in the Internet Routing Table: 38802
Prefixes per ASN: 9.67
Origin-only ASes present in the Internet Routing Table: 32191
Origin ASes announcing only one prefix: 15471
Transit ASes present in the Internet Routing Table: 5200
Transit-only ASes present in the Internet Routing Table: 135
Average AS path length visible in the Internet Routing Table: 3.8
Max AS path length visible: 36
Max AS path prepend of ASN (22394) 33
Prefixes from unregistered ASNs in the Routing Table: 4545
Unregistered ASNs in the Routing Table: 731
Number of 32-bit ASNs allocated by the RIRs: 1731
Number of 32-bit ASNs visible in the Routing Table: 1411
Prefixes from 32-bit ASNs in the Routing Table: 3262
Special use prefixes present in the Routing Table: 83
Prefixes being announced from unallocated address space: 103
Number of addresses announced to Internet: 2478129559
Equivalent to 147 /8s, 181 /16s and 65 /24s
Percentage of available address space announced: 66.9
Percentage of allocated address space announced: 66.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.3
Total number of prefixes smaller than registry allocations: 155667
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 91334
Total APNIC prefixes after maximum aggregation: 29524
APNIC Deaggregation factor: 3.09
Prefixes being announced from the APNIC address blocks: 87971
Unique aggregates announced from the APNIC address blocks: 38190
APNIC Region origin ASes present in the Internet Routing Table: 4547
APNIC Prefixes per ASN: 19.35
APNIC Region origin ASes announcing only one prefix: 1265
APNIC Region transit ASes present in the Internet Routing Table: 719
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 86
Number of APNIC addresses announced to Internet: 627234560
Equivalent to 37 /8s, 98 /16s and 215 /24s
Percentage of available APNIC address space announced: 79.5
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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: 146730
Total ARIN prefixes after maximum aggregation: 75708
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 118291
Unique aggregates announced from the ARIN address blocks: 47940
ARIN Region origin ASes present in the Internet Routing Table: 14663
ARIN Prefixes per ASN: 8.07
ARIN Region origin ASes announcing only one prefix: 5634
ARIN Region transit ASes present in the Internet Routing Table: 1510
Average ARIN Region AS path length visible: 3.5
Max ARIN Region AS path length visible: 36
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 804905116
Equivalent to 47 /8s, 249 /16s and 224 /24s
Percentage of available ARIN address space announced: 64.0
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: 90105
Total RIPE prefixes after maximum aggregation: 50254
RIPE Deaggregation factor: 1.79
Prefixes being announced from the RIPE address blocks: 82307
Unique aggregates announced from the RIPE address blocks: 53900
RIPE Region origin ASes present in the Internet Routing Table: 15989
RIPE Prefixes per ASN: 5.15
RIPE Region origin ASes announcing only one prefix: 7963
RIPE Region transit ASes present in the Internet Routing Table: 2523
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 34
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1003
Number of RIPE addresses announced to Internet: 489426380
Equivalent to 29 /8s, 44 /16s and 13 /24s
Percentage of available RIPE address space announced: 78.8
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: 35261
Total LACNIC prefixes after maximum aggregation: 7787
LACNIC Deaggregation factor: 4.53
Prefixes being announced from the LACNIC address blocks: 34483
Unique aggregates announced from the LACNIC address blocks: 17779
LACNIC Region origin ASes present in the Internet Routing Table: 1524
LACNIC Prefixes per ASN: 22.63
LACNIC Region origin ASes announcing only one prefix: 456
LACNIC Region transit ASes present in the Internet Routing Table: 277
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 306
Number of LACNIC addresses announced to Internet: 88976392
Equivalent to 5 /8s, 77 /16s and 172 /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, 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: 8504
Total AfriNIC prefixes after maximum aggregation: 2063
AfriNIC Deaggregation factor: 4.12
Prefixes being announced from the AfriNIC address blocks: 6587
Unique aggregates announced from the AfriNIC address blocks: 2001
AfriNIC Region origin ASes present in the Internet Routing Table: 484
AfriNIC Prefixes per ASN: 13.61
AfriNIC Region origin ASes announcing only one prefix: 153
AfriNIC Region transit ASes present in the Internet Routing Table: 106
Average AfriNIC Region AS path length visible: 3.6
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 27265536
Equivalent to 1 /8s, 160 /16s and 10 /24s
Percentage of available AfriNIC address space announced: 40.6
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
17974 2007 516 31 PT TELEKOMUNIKASI INDONESIA
4766 1945 11063 650 Korea Telecom (KIX)
7545 1590 302 84 TPG Internet Pty Ltd
4755 1547 639 169 Videsh Sanchar Nigam Ltd. Aut
24560 1180 337 193 Bharti Airtel Ltd.
9829 1157 989 28 BSNL National Internet Backbo
9583 1077 80 505 Sify Limited
4808 1046 2076 295 CNCGROUP IP network: China169
17488 978 189 164 Hathway IP Over Cable Interne
7552 977 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 3562 3817 227 bellsouth.net, inc.
18566 1912 364 237 Covad Communications
1785 1825 680 122 AppliedTheory Corporation
7029 1646 1037 209 Windstream Communications Inc
4323 1625 1101 393 Time Warner Telecom
20115 1593 1542 633 Charter Communications
22773 1456 2907 99 Cox Communications, Inc.
30036 1429 264 683 Mediacom Communications Corp
19262 1394 4724 399 Verizon Global Networks
7018 1343 7084 881 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 1069 824 201 KPNQwest Backbone AS
34984 558 107 178 Tellcom Iletisim Hizmetleri
9116 540 326 31 Goldenlines main autonomous s
6830 526 1811 323 UPC Distribution Services
3292 523 2080 404 TDC Tele Danmark
20940 521 166 406 Akamai Technologies European
12479 473 594 8 Uni2 Autonomous System
8866 460 133 26 Bulgarian Telecommunication C
3320 425 8151 372 Deutsche Telekom AG
29049 424 31 55 AzerSat LLC.
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 1675 308 159 TVCABLE BOGOTA
8151 1451 2783 354 Uninet S.A. de C.V.
28573 1339 1010 70 Types of queries are: POCs, o
7303 1156 678 170 Telecom Argentina Stet-France
14420 722 57 91 Types of queries are: POCs, o
6503 592 434 69 AVANTEL, S.A.
22047 579 322 17 Types of queries are: POCs, o
27947 579 56 76 Telconet S.A
10481 548 430 20 Prima S.A.
3816 538 232 99 COLOMBIA TELECOMUNICACIONES S
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 812 147 42 LINKdotNET AS number
8452 698 445 11 TEDATA
15475 512 74 8 Nile Online
36992 302 415 15 Etisalat MISR
3741 267 938 228 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
33776 239 13 8 Starcomms Nigeria Limited
15706 219 32 6 Sudatel Internet Exchange Aut
12258 199 28 59 YEBO-AS
29571 198 17 13 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 3562 3817 227 bellsouth.net, inc.
23456 3262 771 1755 >>UNKNOWN<<
17974 2007 516 31 PT TELEKOMUNIKASI INDONESIA
4766 1945 11063 650 Korea Telecom (KIX)
18566 1912 364 237 Covad Communications
1785 1825 680 122 AppliedTheory Corporation
10620 1675 308 159 TVCABLE BOGOTA
7029 1646 1037 209 Windstream Communications Inc
4323 1625 1101 393 Time Warner Telecom
20115 1593 1542 633 Charter Communications
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 2007 1976 PT TELEKOMUNIKASI INDONESIA
1785 1825 1703 AppliedTheory Corporation
18566 1912 1675 Covad Communications
10620 1675 1516 TVCABLE BOGOTA
23456 3262 1507 >>UNKNOWN<<
7545 1590 1506 TPG Internet Pty Ltd
7029 1646 1437 Windstream Communications Inc
4755 1547 1378 Videsh Sanchar Nigam Ltd. Aut
22773 1456 1357 Cox Communications, Inc.
4766 1945 1295 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 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<<
46.18.104.0/21 23456 >>UNKNOWN<<
50.115.80.0/20 1828 Unitas Global LLC
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 /8:19 /9:12 /10:27 /11:81 /12:234
/13:464 /14:807 /15:1445 /16:12080 /17:6220 /18:10291
/19:20268 /20:27985 /21:27432 /22:36498 /23:35241 /24:194474
/25:76 /26:89 /27:122 /28:290 /29:103 /30:547
/31:73 /32:503
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2198 3562 bellsouth.net, inc.
18566 1868 1912 Covad Communications
23456 1577 3262 >>UNKNOWN<<
10620 1570 1675 TVCABLE BOGOTA
30036 1387 1429 Mediacom Communications Corp
7029 1329 1646 Windstream Communications Inc
11492 1105 1143 Cable One
7011 1057 1182 Citizens Utilities
1785 1052 1825 AppliedTheory Corporation
22773 945 1456 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:371 2:49 4:19 5:1 6:3 8:351
12:1946 13:1 14:539 15:13 16:3 17:5
20:10 23:32 24:1683 27:941 31:533 32:149
33:4 34:2 36:4 38:741 40:108 41:2568
42:46 44:3 46:980 47:3 49:246 50:420
52:13 54:2 55:6 56:2 57:45 58:877
59:494 60:376 61:1178 62:1097 63:1964 64:4091
65:2304 66:3973 67:1974 68:1270 69:3292 70:829
71:377 72:1887 73:1 74:2489 75:339 76:347
77:871 78:667 79:482 80:1126 81:844 82:518
83:504 84:703 85:1094 86:417 87:866 88:352
89:1548 90:234 91:4093 92:527 93:1154 94:1337
95:778 96:440 97:272 98:945 99:37 101:207
103:299 106:71 107:44 108:82 109:1026 110:674
111:753 112:312 113:442 114:568 115:685 116:950
117:676 118:897 119:1195 120:339 121:703 122:1605
123:1020 124:1354 125:1355 128:249 129:181 130:166
131:584 132:120 133:21 134:216 135:53 136:212
137:137 138:294 139:113 140:492 141:288 142:392
143:406 144:486 145:61 146:468 147:225 148:690
149:252 150:153 151:190 152:451 153:177 154:6
155:390 156:202 157:357 158:144 159:461 160:323
161:207 162:335 163:176 164:509 165:401 166:539
167:434 168:747 169:147 170:858 171:83 172:4
173:1656 174:633 175:403 176:177 177:252 178:1003
180:1073 181:26 182:618 183:237 184:368 185:1
186:1431 187:670 188:942 189:874 190:5142 192:5939
193:5018 194:3547 195:3082 196:1251 197:149 198:3598
199:4119 200:5518 201:1640 202:8536 203:8511 204:4260
205:2360 206:2734 207:2844 208:4157 209:3551 210:2717
211:1472 212:2134 213:1778 214:782 215:75 216:4905
217:1614 218:553 219:334 220:1199 221:513 222:345
223:266
End of report
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