Routing Table Report 00:00 GMT Thu 06 Oct, 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: 379762
Prefixes after maximum aggregation: 169931
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 185460
Total ASes present in the Internet Routing Table: 38966
Prefixes per ASN: 9.75
Origin-only ASes present in the Internet Routing Table: 32253
Origin ASes announcing only one prefix: 15489
Transit ASes present in the Internet Routing Table: 5243
Transit-only ASes present in the Internet Routing Table: 142
Average AS path length visible in the Internet Routing Table: 4.1
Max AS path length visible: 32
Max AS path prepend of ASN (51310) 23
Prefixes from unregistered ASNs in the Routing Table: 4928
Unregistered ASNs in the Routing Table: 827
Number of 32-bit ASNs allocated by the RIRs: 1819
Number of 32-bit ASNs visible in the Routing Table: 1470
Prefixes from 32-bit ASNs in the Routing Table: 3374
Special use prefixes present in the Routing Table: 83
Prefixes being announced from unallocated address space: 94
Number of addresses announced to Internet: 2482748178
Equivalent to 147 /8s, 251 /16s and 187 /24s
Percentage of available address space announced: 67.0
Percentage of allocated address space announced: 67.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.5
Total number of prefixes smaller than registry allocations: 158091
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92333
Total APNIC prefixes after maximum aggregation: 29668
APNIC Deaggregation factor: 3.11
Prefixes being announced from the APNIC address blocks: 88910
Unique aggregates announced from the APNIC address blocks: 37993
APNIC Region origin ASes present in the Internet Routing Table: 4559
APNIC Prefixes per ASN: 19.50
APNIC Region origin ASes announcing only one prefix: 1272
APNIC Region transit ASes present in the Internet Routing Table: 718
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: 90
Number of APNIC addresses announced to Internet: 628464128
Equivalent to 37 /8s, 117 /16s and 154 /24s
Percentage of available APNIC address space announced: 79.7
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: 147450
Total ARIN prefixes after maximum aggregation: 76119
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 119315
Unique aggregates announced from the ARIN address blocks: 47964
ARIN Region origin ASes present in the Internet Routing Table: 14717
ARIN Prefixes per ASN: 8.11
ARIN Region origin ASes announcing only one prefix: 5649
ARIN Region transit ASes present in the Internet Routing Table: 1535
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 804529944
Equivalent to 47 /8s, 244 /16s and 39 /24s
Percentage of available ARIN address space announced: 63.9
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: 92153
Total RIPE prefixes after maximum aggregation: 50607
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 83971
Unique aggregates announced from the RIPE address blocks: 54213
RIPE Region origin ASes present in the Internet Routing Table: 16015
RIPE Prefixes per ASN: 5.24
RIPE Region origin ASes announcing only one prefix: 7958
RIPE Region transit ASes present in the Internet Routing Table: 2519
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: 1038
Number of RIPE addresses announced to Internet: 490782156
Equivalent to 29 /8s, 64 /16s and 189 /24s
Percentage of available RIPE address space announced: 79.1
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: 35699
Total LACNIC prefixes after maximum aggregation: 7800
LACNIC Deaggregation factor: 4.58
Prefixes being announced from the LACNIC address blocks: 34929
Unique aggregates announced from the LACNIC address blocks: 18083
LACNIC Region origin ASes present in the Internet Routing Table: 1528
LACNIC Prefixes per ASN: 22.86
LACNIC Region origin ASes announcing only one prefix: 454
LACNIC Region transit ASes present in the Internet Routing Table: 275
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 326
Number of LACNIC addresses announced to Internet: 89979144
Equivalent to 5 /8s, 92 /16s and 249 /24s
Percentage of available LACNIC address space announced: 59.6
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: 8555
Total AfriNIC prefixes after maximum aggregation: 2010
AfriNIC Deaggregation factor: 4.26
Prefixes being announced from the AfriNIC address blocks: 6642
Unique aggregates announced from the AfriNIC address blocks: 1951
AfriNIC Region origin ASes present in the Internet Routing Table: 488
AfriNIC Prefixes per ASN: 13.61
AfriNIC Region origin ASes announcing only one prefix: 156
AfriNIC Region transit ASes present in the Internet Routing Table: 106
Average AfriNIC Region AS path length visible: 4.1
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: 27731200
Equivalent to 1 /8s, 167 /16s and 37 /24s
Percentage of available AfriNIC address space announced: 41.3
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 1972 519 33 PT TELEKOMUNIKASI INDONESIA
4766 1934 11072 656 Korea Telecom (KIX)
7545 1603 303 84 TPG Internet Pty Ltd
4755 1537 378 173 Videsh Sanchar Nigam Ltd. Aut
7552 1393 1064 7 Vietel Corporation
24560 1180 345 206 Bharti Airtel Ltd.
9829 1165 989 28 BSNL National Internet Backbo
9583 1087 80 503 Sify Limited
4808 1048 2079 297 CNCGROUP IP network: China169
18101 951 165 142 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 3554 3817 225 bellsouth.net, inc.
18566 1913 365 237 Covad Communications
7029 1850 1033 206 Windstream Communications Inc
1785 1829 680 122 AppliedTheory Corporation
4323 1625 1098 391 Time Warner Telecom
20115 1591 1541 634 Charter Communications
22773 1458 2907 100 Cox Communications, Inc.
19262 1394 4728 400 Verizon Global Networks
30036 1379 250 678 Mediacom Communications Corp
7018 1339 7051 878 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
8402 1429 352 13 Corbina telecom
286 1071 825 200 KPNQwest Backbone AS
34984 575 108 178 Tellcom Iletisim Hizmetleri
6830 559 1874 334 UPC Distribution Services
20940 549 186 420 Akamai Technologies European
9116 540 326 31 Goldenlines main autonomous s
3292 532 2082 409 TDC Tele Danmark
3320 502 8169 384 Deutsche Telekom AG
12479 478 593 7 Uni2 Autonomous System
8866 459 133 26 Bulgarian Telecommunication C
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 1682 310 154 TVCABLE BOGOTA
8151 1445 2820 340 Uninet S.A. de C.V.
28573 1359 1014 67 Types of queries are: POCs, o
7303 1164 683 175 Telecom Argentina Stet-France
14420 756 59 87 Types of queries are: POCs, o
27947 589 72 79 Telconet S.A
6503 585 450 70 AVANTEL, S.A.
22047 579 322 17 Types of queries are: POCs, o
10481 548 430 20 Prima S.A.
3816 534 232 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 814 146 36 LINKdotNET AS number
8452 723 445 11 TEDATA
15475 445 74 8 Nile Online
36992 297 415 19 Etisalat MISR
3741 277 938 229 The Internet Solution
15706 244 32 6 Sudatel Internet Exchange Aut
6713 242 519 14 Itissalat Al-MAGHRIB
33776 225 12 9 Starcomms Nigeria Limited
12258 199 28 59 YEBO-AS
29571 192 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 3554 3817 225 bellsouth.net, inc.
17974 1972 519 33 PT TELEKOMUNIKASI INDONESIA
4766 1934 11072 656 Korea Telecom (KIX)
18566 1913 365 237 Covad Communications
7029 1850 1033 206 Windstream Communications Inc
1785 1829 680 122 AppliedTheory Corporation
10620 1682 310 154 TVCABLE BOGOTA
4323 1625 1098 391 Time Warner Telecom
7545 1603 303 84 TPG Internet Pty Ltd
20115 1591 1541 634 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 1972 1939 PT TELEKOMUNIKASI INDONESIA
1785 1829 1707 AppliedTheory Corporation
18566 1913 1676 Covad Communications
7029 1850 1644 Windstream Communications Inc
10620 1682 1528 TVCABLE BOGOTA
7545 1603 1519 TPG Internet Pty Ltd
8402 1429 1416 Corbina telecom
7552 1393 1386 Vietel Corporation
4755 1537 1364 Videsh Sanchar Nigam Ltd. Aut
22773 1458 1358 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
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
17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
32873 UNALLOCATED 12.46.100.0/23 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 /11:81 /12:235
/13:464 /14:811 /15:1458 /16:12113 /17:6250 /18:10372
/19:20391 /20:28315 /21:27700 /22:37188 /23:35473 /24:197237
/25:67 /26:86 /27:111 /28:272 /29:73 /30:480
/31:52 /32:474
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2190 3554 bellsouth.net, inc.
18566 1870 1913 Covad Communications
10620 1577 1682 TVCABLE BOGOTA
7029 1529 1850 Windstream Communications Inc
8402 1406 1429 Corbina telecom
30036 1341 1379 Mediacom Communications Corp
11492 1115 1153 Cable One
1785 1054 1829 AppliedTheory Corporation
7011 1052 1172 Citizens Utilities
22773 947 1458 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:385 2:482 4:19 5:1 6:3 8:356
12:1955 13:1 14:538 15:13 16:3 17:7
20:10 23:52 24:1695 27:963 31:575 32:150
33:4 34:2 36:4 38:754 40:108 41:2673
42:49 44:3 46:997 47:3 49:260 50:435
52:13 55:5 56:2 57:47 58:884 59:491
60:365 61:1176 62:1097 63:1957 64:4086 65:2309
66:4043 67:1987 68:1277 69:3300 70:874 71:377
72:1879 73:1 74:2529 75:367 76:349 77:885
78:878 79:488 80:1130 81:842 82:511 83:504
84:629 85:1118 86:412 87:876 88:358 89:1614
90:268 91:4168 92:527 93:1384 94:1319 95:1021
96:440 97:279 98:915 99:37 101:210 103:343
106:70 107:60 108:58 109:1045 110:673 111:794
112:320 113:481 114:569 115:698 116:897 117:704
118:903 119:1225 120:335 121:700 122:1607 123:1025
124:1367 125:1384 128:245 129:182 130:167 131:579
132:112 133:21 134:215 135:54 136:214 137:139
138:288 139:134 140:496 141:292 142:390 143:419
144:494 145:64 146:473 147:226 148:690 149:264
150:155 151:193 152:446 153:178 154:6 155:387
156:207 157:361 158:151 159:467 160:324 161:206
162:336 163:179 164:511 165:397 166:537 167:435
168:740 169:146 170:865 171:85 172:1 173:1668
174:660 175:418 176:268 177:284 178:1056 180:1107
181:37 182:632 183:210 184:379 185:1 186:1512
187:688 188:933 189:856 190:5191 192:5947 193:5033
194:3556 195:3124 196:1242 197:171 198:3635 199:4148
200:5520 201:1645 202:8586 203:8491 204:4297 205:2387
206:2727 207:2837 208:4161 209:3540 210:2723 211:1462
212:2102 213:1804 214:785 215:90 216:4974 217:1610
218:564 219:339 220:1243 221:515 222:343 223:279
End of report