Routing Table Report 00:00 GMT Tue 11 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: 379845
Prefixes after maximum aggregation: 170232
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 185540
Total ASes present in the Internet Routing Table: 39007
Prefixes per ASN: 9.74
Origin-only ASes present in the Internet Routing Table: 32301
Origin ASes announcing only one prefix: 15485
Transit ASes present in the Internet Routing Table: 5214
Transit-only ASes present in the Internet Routing Table: 140
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 25
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 5029
Unregistered ASNs in the Routing Table: 852
Number of 32-bit ASNs allocated by the RIRs: 1838
Number of 32-bit ASNs visible in the Routing Table: 1492
Prefixes from 32-bit ASNs in the Routing Table: 3405
Special use prefixes present in the Routing Table: 91
Prefixes being announced from unallocated address space: 93
Number of addresses announced to Internet: 2483863090
Equivalent to 148 /8s, 12 /16s and 190 /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: 157935
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92446
Total APNIC prefixes after maximum aggregation: 29668
APNIC Deaggregation factor: 3.12
Prefixes being announced from the APNIC address blocks: 89005
Unique aggregates announced from the APNIC address blocks: 37959
APNIC Region origin ASes present in the Internet Routing Table: 4558
APNIC Prefixes per ASN: 19.53
APNIC Region origin ASes announcing only one prefix: 1264
APNIC Region transit ASes present in the Internet Routing Table: 705
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 91
Number of APNIC addresses announced to Internet: 628455680
Equivalent to 37 /8s, 117 /16s and 121 /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: 147641
Total ARIN prefixes after maximum aggregation: 76184
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 119488
Unique aggregates announced from the ARIN address blocks: 48035
ARIN Region origin ASes present in the Internet Routing Table: 14724
ARIN Prefixes per ASN: 8.12
ARIN Region origin ASes announcing only one prefix: 5652
ARIN Region transit ASes present in the Internet Routing Table: 1547
Average ARIN Region AS path length visible: 3.8
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: 804609560
Equivalent to 47 /8s, 245 /16s and 94 /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: 92202
Total RIPE prefixes after maximum aggregation: 50691
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 84017
Unique aggregates announced from the RIPE address blocks: 54305
RIPE Region origin ASes present in the Internet Routing Table: 16020
RIPE Prefixes per ASN: 5.24
RIPE Region origin ASes announcing only one prefix: 7955
RIPE Region transit ASes present in the Internet Routing Table: 2504
Average RIPE Region AS path length visible: 4.4
Max RIPE Region AS path length visible: 25
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1052
Number of RIPE addresses announced to Internet: 490962636
Equivalent to 29 /8s, 67 /16s and 126 /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: 35670
Total LACNIC prefixes after maximum aggregation: 7894
LACNIC Deaggregation factor: 4.52
Prefixes being announced from the LACNIC address blocks: 34906
Unique aggregates announced from the LACNIC address blocks: 17962
LACNIC Region origin ASes present in the Internet Routing Table: 1537
LACNIC Prefixes per ASN: 22.71
LACNIC Region origin ASes announcing only one prefix: 459
LACNIC Region transit ASes present in the Internet Routing Table: 274
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 25
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 333
Number of LACNIC addresses announced to Internet: 90713640
Equivalent to 5 /8s, 104 /16s and 46 /24s
Percentage of available LACNIC address space announced: 60.1
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: 8284
Total AfriNIC prefixes after maximum aggregation: 2021
AfriNIC Deaggregation factor: 4.10
Prefixes being announced from the AfriNIC address blocks: 6377
Unique aggregates announced from the AfriNIC address blocks: 1967
AfriNIC Region origin ASes present in the Internet Routing Table: 489
AfriNIC Prefixes per ASN: 13.04
AfriNIC Region origin ASes announcing only one prefix: 155
AfriNIC Region transit ASes present in the Internet Routing Table: 110
Average AfriNIC Region AS path length visible: 4.1
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: 27775744
Equivalent to 1 /8s, 167 /16s and 211 /24s
Percentage of available AfriNIC address space announced: 41.4
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
17974 1967 519 33 PT TELEKOMUNIKASI INDONESIA
4766 1929 11055 650 Korea Telecom (KIX)
7545 1608 303 86 TPG Internet Pty Ltd
4755 1536 379 170 Videsh Sanchar Nigam Ltd. Aut
7552 1393 1064 7 Vietel Corporation
9829 1165 989 28 BSNL National Internet Backbo
24560 1150 341 231 Bharti Airtel Ltd.
4808 1097 2124 313 CNCGROUP IP network: China169
9583 1088 80 503 Sify Limited
18101 952 165 142 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 3552 3815 221 bellsouth.net, inc.
7029 1937 1036 236 Windstream Communications Inc
18566 1915 366 239 Covad Communications
1785 1833 680 122 AppliedTheory Corporation
4323 1631 1099 393 Time Warner Telecom
20115 1591 1541 636 Charter Communications
22773 1459 2907 100 Cox Communications, Inc.
19262 1394 4728 400 Verizon Global Networks
30036 1385 250 676 Mediacom Communications Corp
7018 1342 7067 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 1484 352 13 Corbina telecom
286 1073 825 200 KPNQwest Backbone AS
6830 636 1890 410 UPC Distribution Services
34984 580 108 180 Tellcom Iletisim Hizmetleri
20940 555 188 426 Akamai Technologies European
9116 540 326 31 Goldenlines main autonomous s
3292 533 2082 409 TDC Tele Danmark
3320 503 8169 385 Deutsche Telekom AG
12479 480 593 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 1680 310 154 TVCABLE BOGOTA
8151 1450 2822 343 Uninet S.A. de C.V.
28573 1359 1014 68 Types of queries are: POCs, o
7303 1164 683 175 Telecom Argentina Stet-France
14420 636 59 87 Types of queries are: POCs, o
27947 589 72 79 Telconet S.A
6503 586 450 71 AVANTEL, S.A.
22047 579 322 17 Types of queries are: POCs, o
7738 553 1050 31 Telecomunicacoes da Bahia S.A
10481 548 430 20 Prima 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 770 146 36 LINKdotNET AS number
8452 505 445 11 TEDATA
15475 441 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 207 13 14 Starcomms Nigeria Limited
12258 199 28 59 YEBO-AS
29571 193 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 3552 3815 221 bellsouth.net, inc.
17974 1967 519 33 PT TELEKOMUNIKASI INDONESIA
7029 1937 1036 236 Windstream Communications Inc
4766 1929 11055 650 Korea Telecom (KIX)
18566 1915 366 239 Covad Communications
1785 1833 680 122 AppliedTheory Corporation
10620 1680 310 154 TVCABLE BOGOTA
4323 1631 1099 393 Time Warner Telecom
7545 1608 303 86 TPG Internet Pty Ltd
20115 1591 1541 636 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 1967 1934 PT TELEKOMUNIKASI INDONESIA
1785 1833 1711 AppliedTheory Corporation
7029 1937 1701 Windstream Communications Inc
18566 1915 1676 Covad Communications
10620 1680 1526 TVCABLE BOGOTA
7545 1608 1522 TPG Internet Pty Ltd
8402 1484 1471 Corbina telecom
7552 1393 1386 Vietel Corporation
4755 1536 1366 Videsh Sanchar Nigam Ltd. Aut
22773 1459 1359 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 /14:812 /15:1458 /16:12113 /17:6267 /18:10374
/19:20435 /20:28358 /21:27702 /22:37133 /23:35449 /24:197239
/25:67 /26:86 /27:114 /28:282 /29:107 /30:481
/31:52 /32:477
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2190 3552 bellsouth.net, inc.
18566 1871 1915 Covad Communications
7029 1610 1937 Windstream Communications Inc
10620 1575 1680 TVCABLE BOGOTA
8402 1461 1484 Corbina telecom
30036 1347 1385 Mediacom Communications Corp
11492 1115 1153 Cable One
1785 1055 1833 AppliedTheory Corporation
7011 1048 1167 Citizens Utilities
22773 948 1459 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:391 2:489 4:19 5:1 6:3 8:358
12:1959 13:1 14:540 15:11 16:3 17:7
20:9 23:56 24:1696 27:965 31:571 32:150
33:4 34:2 36:4 38:754 40:108 41:2522
42:51 44:3 46:995 47:3 49:263 50:443
52:13 55:4 56:2 57:47 58:884 59:490
60:363 61:1174 62:1096 63:1958 64:4097 65:2300
66:4055 67:1995 68:1280 69:3316 70:883 71:378
72:1886 73:1 74:2567 75:376 76:348 77:884
78:872 79:457 80:1131 81:831 82:505 83:540
84:648 85:1118 86:412 87:874 88:359 89:1614
90:268 91:4169 92:527 93:1394 94:1299 95:1047
96:440 97:280 98:921 99:36 101:210 103:349
106:70 107:61 108:58 109:1052 110:668 111:796
112:315 113:482 114:578 115:696 116:911 117:713
118:907 119:1251 120:337 121:710 122:1602 123:1026
124:1366 125:1384 128:256 129:178 130:167 131:586
132:121 133:21 134:216 135:54 136:213 137:140
138:288 139:137 140:494 141:292 142:390 143:426
144:493 145:64 146:473 147:226 148:692 149:266
150:153 151:193 152:447 153:178 154:7 155:386
156:208 157:361 158:151 159:467 160:323 161:208
162:338 163:176 164:504 165:395 166:539 167:437
168:745 169:146 170:870 171:86 172:1 173:1688
174:665 175:427 176:280 177:293 178:1053 180:1115
181:37 182:635 183:213 184:373 185:1 186:1412
187:669 188:933 189:851 190:5116 192:5941 193:5037
194:3560 195:3120 196:1240 197:184 198:3637 199:4153
200:5529 201:1648 202:8564 203:8502 204:4306 205:2393
206:2733 207:2835 208:4176 209:3546 210:2724 211:1461
212:2111 213:1743 214:790 215:89 216:4979 217:1618
218:564 219:339 220:1243 221:511 222:343 223:285
End of report