Routing Table Report 00:00 GMT Sun 09 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: 379655
Prefixes after maximum aggregation: 170094
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 185689
Total ASes present in the Internet Routing Table: 38978
Prefixes per ASN: 9.74
Origin-only ASes present in the Internet Routing Table: 32293
Origin ASes announcing only one prefix: 15483
Transit ASes present in the Internet Routing Table: 5209
Transit-only ASes present in the Internet Routing Table: 137
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: 4985
Unregistered ASNs in the Routing Table: 842
Number of 32-bit ASNs allocated by the RIRs: 1835
Number of 32-bit ASNs visible in the Routing Table: 1476
Prefixes from 32-bit ASNs in the Routing Table: 3378
Special use prefixes present in the Routing Table: 95
Prefixes being announced from unallocated address space: 95
Number of addresses announced to Internet: 2483626002
Equivalent to 148 /8s, 9 /16s and 32 /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: 157860
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92442
Total APNIC prefixes after maximum aggregation: 29701
APNIC Deaggregation factor: 3.11
Prefixes being announced from the APNIC address blocks: 89010
Unique aggregates announced from the APNIC address blocks: 38051
APNIC Region origin ASes present in the Internet Routing Table: 4556
APNIC Prefixes per ASN: 19.54
APNIC Region origin ASes announcing only one prefix: 1261
APNIC Region transit ASes present in the Internet Routing Table: 710
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 90
Number of APNIC addresses announced to Internet: 628498944
Equivalent to 37 /8s, 118 /16s and 34 /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: 147602
Total ARIN prefixes after maximum aggregation: 76125
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 119445
Unique aggregates announced from the ARIN address blocks: 48040
ARIN Region origin ASes present in the Internet Routing Table: 14715
ARIN Prefixes per ASN: 8.12
ARIN Region origin ASes announcing only one prefix: 5645
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: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 804571672
Equivalent to 47 /8s, 244 /16s and 202 /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: 92133
Total RIPE prefixes after maximum aggregation: 50661
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 83947
Unique aggregates announced from the RIPE address blocks: 54293
RIPE Region origin ASes present in the Internet Routing Table: 16029
RIPE Prefixes per ASN: 5.24
RIPE Region origin ASes announcing only one prefix: 7970
RIPE Region transit ASes present in the Internet Routing Table: 2497
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: 1046
Number of RIPE addresses announced to Internet: 490881228
Equivalent to 29 /8s, 66 /16s and 64 /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: 35694
Total LACNIC prefixes after maximum aggregation: 7860
LACNIC Deaggregation factor: 4.54
Prefixes being announced from the LACNIC address blocks: 34956
Unique aggregates announced from the LACNIC address blocks: 18051
LACNIC Region origin ASes present in the Internet Routing Table: 1531
LACNIC Prefixes per ASN: 22.83
LACNIC Region origin ASes announcing only one prefix: 455
LACNIC Region transit ASes present in the Internet Routing Table: 274
Average LACNIC Region AS path length visible: 4.7
Max LACNIC Region AS path length visible: 25
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 324
Number of LACNIC addresses announced to Internet: 90618632
Equivalent to 5 /8s, 102 /16s and 187 /24s
Percentage of available LACNIC address space announced: 60.0
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: 8204
Total AfriNIC prefixes after maximum aggregation: 2013
AfriNIC Deaggregation factor: 4.08
Prefixes being announced from the AfriNIC address blocks: 6315
Unique aggregates announced from the AfriNIC address blocks: 1983
AfriNIC Region origin ASes present in the Internet Routing Table: 487
AfriNIC Prefixes per ASN: 12.97
AfriNIC Region origin ASes announcing only one prefix: 152
AfriNIC Region transit ASes present in the Internet Routing Table: 105
Average AfriNIC Region AS path length visible: 4.2
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: 27778816
Equivalent to 1 /8s, 167 /16s and 223 /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 1960 519 33 PT TELEKOMUNIKASI INDONESIA
4766 1928 11055 650 Korea Telecom (KIX)
7545 1605 303 85 TPG Internet Pty Ltd
4755 1547 383 168 Videsh Sanchar Nigam Ltd. Aut
7552 1394 1064 7 Vietel Corporation
24560 1180 345 206 Bharti Airtel Ltd.
9829 1165 989 28 BSNL National Internet Backbo
4808 1094 2124 311 CNCGROUP IP network: China169
9583 1087 80 503 Sify Limited
18101 954 165 143 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 3553 3817 222 bellsouth.net, inc.
7029 1933 1028 235 Windstream Communications Inc
18566 1915 366 239 Covad Communications
1785 1833 680 121 AppliedTheory Corporation
4323 1628 1099 393 Time Warner Telecom
20115 1593 1542 637 Charter Communications
22773 1458 2907 100 Cox Communications, Inc.
19262 1394 4728 400 Verizon Global Networks
30036 1385 250 676 Mediacom Communications Corp
7018 1341 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 1390 352 13 Corbina telecom
286 1073 825 200 KPNQwest Backbone AS
6830 636 1890 410 UPC Distribution Services
34984 578 108 180 Tellcom Iletisim Hizmetleri
20940 554 188 425 Akamai Technologies European
9116 540 326 31 Goldenlines main autonomous s
3292 530 2082 407 TDC Tele Danmark
3320 503 8169 385 Deutsche Telekom AG
12479 481 593 7 Uni2 Autonomous System
8866 460 133 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 1452 2822 345 Uninet S.A. de C.V.
28573 1348 1013 83 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 590 72 79 Telconet S.A
6503 586 450 71 AVANTEL, S.A.
22047 579 322 17 Types of queries are: POCs, o
10481 548 430 20 Prima S.A.
3816 537 233 95 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 686 146 34 LINKdotNET AS number
8452 498 445 11 TEDATA
15475 445 74 8 Nile Online
36992 298 415 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
12258 199 28 59 YEBO-AS
33776 197 13 13 Starcomms Nigeria Limited
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 3553 3817 222 bellsouth.net, inc.
17974 1960 519 33 PT TELEKOMUNIKASI INDONESIA
7029 1933 1028 235 Windstream Communications Inc
4766 1928 11055 650 Korea Telecom (KIX)
18566 1915 366 239 Covad Communications
1785 1833 680 121 AppliedTheory Corporation
10620 1680 310 154 TVCABLE BOGOTA
4323 1628 1099 393 Time Warner Telecom
7545 1605 303 85 TPG Internet Pty Ltd
20115 1593 1542 637 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 1960 1927 PT TELEKOMUNIKASI INDONESIA
1785 1833 1712 AppliedTheory Corporation
7029 1933 1698 Windstream Communications Inc
18566 1915 1676 Covad Communications
10620 1680 1526 TVCABLE BOGOTA
7545 1605 1520 TPG Internet Pty Ltd
7552 1394 1387 Vietel Corporation
4755 1547 1379 Videsh Sanchar Nigam Ltd. Aut
8402 1390 1377 Corbina telecom
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 /14:812 /15:1457 /16:12113 /17:6257 /18:10380
/19:20419 /20:28347 /21:27693 /22:37059 /23:35360 /24:197264
/25:67 /26:86 /27:112 /28:279 /29:103 /30:481
/31:52 /32:475
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2190 3553 bellsouth.net, inc.
18566 1871 1915 Covad Communications
7029 1608 1933 Windstream Communications Inc
10620 1575 1680 TVCABLE BOGOTA
8402 1367 1390 Corbina telecom
30036 1347 1385 Mediacom Communications Corp
11492 1115 1153 Cable One
1785 1055 1833 AppliedTheory Corporation
7011 1048 1167 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)
----------------------------------------------
1:389 2:474 4:19 5:1 6:3 8:358
12:1958 13:1 14:530 15:11 16:3 17:7
20:9 23:55 24:1696 27:965 31:577 32:150
33:4 34:2 36:4 38:757 40:108 41:2515
42:50 44:3 46:1000 47:3 49:264 50:443
52:13 55:5 56:2 57:47 58:884 59:490
60:365 61:1175 62:1098 63:1956 64:4094 65:2306
66:4054 67:1995 68:1282 69:3316 70:881 71:378
72:1880 73:1 74:2555 75:376 76:347 77:885
78:867 79:479 80:1131 81:832 82:514 83:510
84:634 85:1121 86:412 87:875 88:359 89:1614
90:269 91:4170 92:528 93:1374 94:1303 95:1027
96:440 97:280 98:920 99:37 101:210 103:338
106:70 107:61 108:58 109:1046 110:666 111:796
112:320 113:483 114:577 115:699 116:911 117:711
118:907 119:1252 120:338 121:713 122:1608 123:1024
124:1366 125:1385 128:254 129:179 130:167 131:583
132:121 133:21 134:215 135:54 136:201 137:140
138:288 139:138 140:495 141:292 142:390 143:424
144:478 145:64 146:469 147:226 148:688 149:266
150:151 151:193 152:447 153:179 154:7 155:383
156:207 157:360 158:151 159:467 160:324 161:206
162:338 163:175 164:507 165:398 166:539 167:437
168:745 169:146 170:868 171:86 172:1 173:1689
174:662 175:427 176:258 177:287 178:1055 180:1106
181:34 182:636 183:209 184:381 185:1 186:1513
187:671 188:932 189:856 190:5171 192:5939 193:5039
194:3556 195:3128 196:1242 197:184 198:3637 199:4144
200:5523 201:1647 202:8560 203:8508 204:4305 205:2388
206:2732 207:2838 208:4167 209:3546 210:2722 211:1461
212:2110 213:1807 214:788 215:90 216:4971 217:1608
218:564 219:340 220:1243 221:514 222:343 223:285
End of report