Routing Table Report 00:00 GMT Mon 03 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: 379434
Prefixes after maximum aggregation: 169777
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 185190
Total ASes present in the Internet Routing Table: 38925
Prefixes per ASN: 9.75
Origin-only ASes present in the Internet Routing Table: 32255
Origin ASes announcing only one prefix: 15460
Transit ASes present in the Internet Routing Table: 5213
Transit-only ASes present in the Internet Routing Table: 138
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 32
Max AS path prepend of ASN (51310) 23
Prefixes from unregistered ASNs in the Routing Table: 4873
Unregistered ASNs in the Routing Table: 806
Number of 32-bit ASNs allocated by the RIRs: 1810
Number of 32-bit ASNs visible in the Routing Table: 1457
Prefixes from 32-bit ASNs in the Routing Table: 3373
Special use prefixes present in the Routing Table: 82
Prefixes being announced from unallocated address space: 96
Number of addresses announced to Internet: 2482212118
Equivalent to 147 /8s, 243 /16s and 141 /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: 158156
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92066
Total APNIC prefixes after maximum aggregation: 29652
APNIC Deaggregation factor: 3.10
Prefixes being announced from the APNIC address blocks: 88644
Unique aggregates announced from the APNIC address blocks: 37896
APNIC Region origin ASes present in the Internet Routing Table: 4555
APNIC Prefixes per ASN: 19.46
APNIC Region origin ASes announcing only one prefix: 1269
APNIC Region transit ASes present in the Internet Routing Table: 722
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: 91
Number of APNIC addresses announced to Internet: 628393216
Equivalent to 37 /8s, 116 /16s and 133 /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: 147368
Total ARIN prefixes after maximum aggregation: 76041
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 119226
Unique aggregates announced from the ARIN address blocks: 47929
ARIN Region origin ASes present in the Internet Routing Table: 14704
ARIN Prefixes per ASN: 8.11
ARIN Region origin ASes announcing only one prefix: 5637
ARIN Region transit ASes present in the Internet Routing Table: 1534
Average ARIN Region AS path length visible: 3.6
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: 804691736
Equivalent to 47 /8s, 246 /16s and 159 /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: 92199
Total RIPE prefixes after maximum aggregation: 50560
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 84062
Unique aggregates announced from the RIPE address blocks: 54155
RIPE Region origin ASes present in the Internet Routing Table: 16007
RIPE Prefixes per ASN: 5.25
RIPE Region origin ASes announcing only one prefix: 7949
RIPE Region transit ASes present in the Internet Routing Table: 2502
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1031
Number of RIPE addresses announced to Internet: 490396620
Equivalent to 29 /8s, 58 /16s and 219 /24s
Percentage of available RIPE address space announced: 79.0
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: 35636
Total LACNIC prefixes after maximum aggregation: 7819
LACNIC Deaggregation factor: 4.56
Prefixes being announced from the LACNIC address blocks: 34878
Unique aggregates announced from the LACNIC address blocks: 18031
LACNIC Region origin ASes present in the Internet Routing Table: 1532
LACNIC Prefixes per ASN: 22.77
LACNIC Region origin ASes announcing only one prefix: 450
LACNIC Region transit ASes present in the Internet Routing Table: 272
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 20
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 319
Number of LACNIC addresses announced to Internet: 89705736
Equivalent to 5 /8s, 88 /16s and 205 /24s
Percentage of available LACNIC address space announced: 59.4
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: 8599
Total AfriNIC prefixes after maximum aggregation: 2012
AfriNIC Deaggregation factor: 4.27
Prefixes being announced from the AfriNIC address blocks: 6651
Unique aggregates announced from the AfriNIC address blocks: 1943
AfriNIC Region origin ASes present in the Internet Routing Table: 485
AfriNIC Prefixes per ASN: 13.71
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: 4.2
Max AfriNIC Region AS path length visible: 26
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 27673344
Equivalent to 1 /8s, 166 /16s and 67 /24s
Percentage of available AfriNIC address space announced: 41.2
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 1951 11073 662 Korea Telecom (KIX)
7545 1604 303 86 TPG Internet Pty Ltd
4755 1537 378 174 Videsh Sanchar Nigam Ltd. Aut
7552 1385 1064 7 Vietel Corporation
24560 1177 345 208 Bharti Airtel Ltd.
9829 1158 989 28 BSNL National Internet Backbo
9583 1087 80 503 Sify Limited
4808 1050 2079 297 CNCGROUP IP network: China169
18101 953 165 143 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 3555 3817 225 bellsouth.net, inc.
18566 1915 366 239 Covad Communications
7029 1859 1033 206 Windstream Communications Inc
1785 1833 681 124 AppliedTheory Corporation
4323 1627 1098 392 Time Warner Telecom
20115 1594 1542 634 Charter Communications
22773 1457 2907 100 Cox Communications, Inc.
19262 1394 4728 400 Verizon Global Networks
30036 1390 252 668 Mediacom Communications Corp
7018 1344 7068 876 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 1400 352 13 Corbina telecom
286 1070 824 199 KPNQwest Backbone AS
34984 576 108 179 Tellcom Iletisim Hizmetleri
6830 558 1873 333 UPC Distribution Services
9116 540 326 31 Goldenlines main autonomous s
20940 533 180 409 Akamai Technologies European
3292 528 2082 408 TDC Tele Danmark
3320 500 8169 383 Deutsche Telekom AG
12479 476 593 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 1681 310 155 TVCABLE BOGOTA
8151 1446 2804 343 Uninet S.A. de C.V.
28573 1359 1013 70 Types of queries are: POCs, o
7303 1163 683 175 Telecom Argentina Stet-France
14420 742 58 87 Types of queries are: POCs, o
27947 588 72 79 Telconet S.A
6503 584 450 71 AVANTEL, S.A.
22047 581 322 17 Types of queries are: POCs, o
10481 548 430 20 Prima S.A.
3816 536 232 98 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 816 147 37 LINKdotNET AS number
8452 730 445 11 TEDATA
15475 450 74 8 Nile Online
36992 292 415 14 Etisalat MISR
3741 276 938 229 The Internet Solution
15706 244 32 6 Sudatel Internet Exchange Aut
6713 242 519 14 Itissalat Al-MAGHRIB
33776 239 13 8 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 3555 3817 225 bellsouth.net, inc.
17974 1972 519 33 PT TELEKOMUNIKASI INDONESIA
4766 1951 11073 662 Korea Telecom (KIX)
18566 1915 366 239 Covad Communications
7029 1859 1033 206 Windstream Communications Inc
1785 1833 681 124 AppliedTheory Corporation
10620 1681 310 155 TVCABLE BOGOTA
4323 1627 1098 392 Time Warner Telecom
7545 1604 303 86 TPG Internet Pty Ltd
20115 1594 1542 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 1833 1709 AppliedTheory Corporation
18566 1915 1676 Covad Communications
7029 1859 1653 Windstream Communications Inc
10620 1681 1526 TVCABLE BOGOTA
7545 1604 1518 TPG Internet Pty Ltd
8402 1400 1387 Corbina telecom
7552 1385 1378 Vietel Corporation
4755 1537 1363 Videsh Sanchar Nigam Ltd. Aut
22773 1457 1357 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 /14:810 /15:1455 /16:12107 /17:6247 /18:10364
/19:20373 /20:28256 /21:27636 /22:37128 /23:35425 /24:197162
/25:69 /26:89 /27:115 /28:277 /29:74 /30:481
/31:51 /32:476
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2192 3555 bellsouth.net, inc.
18566 1870 1915 Covad Communications
10620 1576 1681 TVCABLE BOGOTA
7029 1542 1859 Windstream Communications Inc
8402 1377 1400 Corbina telecom
30036 1352 1390 Mediacom Communications Corp
11492 1115 1153 Cable One
1785 1054 1833 AppliedTheory Corporation
7011 1052 1173 Citizens Utilities
22773 946 1457 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:380 2:473 4:19 5:1 6:3 8:355
12:1955 13:1 14:530 15:13 16:3 17:7
20:10 23:36 24:1693 27:962 31:574 32:150
33:4 34:2 36:4 38:752 40:108 41:2697
42:49 44:3 46:993 47:3 49:263 50:433
52:13 55:3 56:2 57:48 58:886 59:489
60:365 61:1179 62:1108 63:1959 64:4103 65:2309
66:4037 67:1985 68:1278 69:3320 70:874 71:377
72:1878 73:1 74:2519 75:368 76:349 77:883
78:877 79:489 80:1131 81:854 82:516 83:607
84:639 85:1121 86:414 87:883 88:358 89:1617
90:268 91:4160 92:532 93:1376 94:1322 95:1005
96:444 97:277 98:924 99:37 101:210 103:333
106:70 107:59 108:51 109:1042 110:669 111:796
112:321 113:452 114:555 115:697 116:892 117:704
118:904 119:1211 120:334 121:697 122:1607 123:1025
124:1346 125:1393 128:245 129:181 130:166 131:580
132:112 133:21 134:215 135:54 136:214 137:139
138:288 139:135 140:496 141:292 142:391 143:414
144:486 145:64 146:472 147:226 148:692 149:264
150:153 151:193 152:446 153:177 154:6 155:386
156:207 157:362 158:150 159:466 160:323 161:206
162:336 163:179 164:511 165:405 166:538 167:436
168:741 169:148 170:865 171:85 172:1 173:1668
174:658 175:423 176:264 177:290 178:1048 180:1099
181:37 182:632 183:215 184:383 185:1 186:1495
187:682 188:928 189:874 190:5191 192:5948 193:5025
194:3551 195:3108 196:1269 197:173 198:3632 199:4144
200:5527 201:1646 202:8584 203:8489 204:4265 205:2376
206:2735 207:2838 208:4167 209:3556 210:2727 211:1466
212:2095 213:1785 214:782 215:90 216:4948 217:1609
218:564 219:339 220:1229 221:506 222:343 223:263
End of report
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