Routing Table Report 00:00 GMT Wed 28 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: 378448
Prefixes after maximum aggregation: 169492
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 180459
Total ASes present in the Internet Routing Table: 38925
Prefixes per ASN: 9.72
Origin-only ASes present in the Internet Routing Table: 32241
Origin ASes announcing only one prefix: 15488
Transit ASes present in the Internet Routing Table: 5242
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 (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 4708
Unregistered ASNs in the Routing Table: 795
Number of 32-bit ASNs allocated by the RIRs: 1774
Number of 32-bit ASNs visible in the Routing Table: 1442
Prefixes from 32-bit ASNs in the Routing Table: 3300
Special use prefixes present in the Routing Table: 82
Prefixes being announced from unallocated address space: 97
Number of addresses announced to Internet: 2482061462
Equivalent to 147 /8s, 241 /16s and 64 /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: 91.4
Total number of prefixes smaller than registry allocations: 157343
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92054
Total APNIC prefixes after maximum aggregation: 29589
APNIC Deaggregation factor: 3.11
Prefixes being announced from the APNIC address blocks: 88677
Unique aggregates announced from the APNIC address blocks: 38051
APNIC Region origin ASes present in the Internet Routing Table: 4558
APNIC Prefixes per ASN: 19.46
APNIC Region origin ASes announcing only one prefix: 1264
APNIC Region transit ASes present in the Internet Routing Table: 717
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 23
Number of APNIC region 32-bit ASNs visible in the Routing Table: 89
Number of APNIC addresses announced to Internet: 628165888
Equivalent to 37 /8s, 113 /16s and 13 /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: 147257
Total ARIN prefixes after maximum aggregation: 75911
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 119034
Unique aggregates announced from the ARIN address blocks: 43185
ARIN Region origin ASes present in the Internet Routing Table: 14709
ARIN Prefixes per ASN: 8.09
ARIN Region origin ASes announcing only one prefix: 5650
ARIN Region transit ASes present in the Internet Routing Table: 1550
Average ARIN Region AS path length visible: 3.7
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: 806174364
Equivalent to 48 /8s, 13 /16s and 62 /24s
Percentage of available ARIN address space announced: 64.1
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: 91599
Total RIPE prefixes after maximum aggregation: 50485
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 83465
Unique aggregates announced from the RIPE address blocks: 54104
RIPE Region origin ASes present in the Internet Routing Table: 16007
RIPE Prefixes per ASN: 5.21
RIPE Region origin ASes announcing only one prefix: 7969
RIPE Region transit ASes present in the Internet Routing Table: 2529
Average RIPE Region AS path length visible: 4.4
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1023
Number of RIPE addresses announced to Internet: 490139084
Equivalent to 29 /8s, 54 /16s and 237 /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: 35565
Total LACNIC prefixes after maximum aggregation: 7825
LACNIC Deaggregation factor: 4.55
Prefixes being announced from the LACNIC address blocks: 34779
Unique aggregates announced from the LACNIC address blocks: 17949
LACNIC Region origin ASes present in the Internet Routing Table: 1530
LACNIC Prefixes per ASN: 22.73
LACNIC Region origin ASes announcing only one prefix: 452
LACNIC Region transit ASes present in the Internet Routing Table: 275
Average LACNIC Region AS path length visible: 4.7
Max LACNIC Region AS path length visible: 20
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 314
Number of LACNIC addresses announced to Internet: 89371912
Equivalent to 5 /8s, 83 /16s and 181 /24s
Percentage of available LACNIC address space announced: 59.2
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: 8473
Total AfriNIC prefixes after maximum aggregation: 2009
AfriNIC Deaggregation factor: 4.22
Prefixes being announced from the AfriNIC address blocks: 6577
Unique aggregates announced from the AfriNIC address blocks: 2004
AfriNIC Region origin ASes present in the Internet Routing Table: 488
AfriNIC Prefixes per ASN: 13.48
AfriNIC Region origin ASes announcing only one prefix: 153
AfriNIC Region transit ASes present in the Internet Routing Table: 103
Average AfriNIC Region AS path length visible: 3.8
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: 27354624
Equivalent to 1 /8s, 161 /16s and 102 /24s
Percentage of available AfriNIC address space announced: 40.8
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 2004 519 33 PT TELEKOMUNIKASI INDONESIA
4766 1939 11056 650 Korea Telecom (KIX)
7545 1604 303 86 TPG Internet Pty Ltd
4755 1540 634 174 Videsh Sanchar Nigam Ltd. Aut
7552 1392 1064 7 Vietel Corporation
24560 1181 337 193 Bharti Airtel Ltd.
9829 1159 989 28 BSNL National Internet Backbo
4808 1092 2125 312 CNCGROUP IP network: China169
9583 1086 80 502 Sify Limited
18101 951 118 141 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 3561 3817 226 bellsouth.net, inc.
18566 1915 366 239 Covad Communications
1785 1828 680 124 AppliedTheory Corporation
7029 1732 1018 219 Windstream Communications Inc
4323 1624 1098 391 Time Warner Telecom
20115 1594 1543 636 Charter Communications
22773 1459 2907 99 Cox Communications, Inc.
30036 1413 263 674 Mediacom Communications Corp
19262 1394 4728 400 Verizon Global Networks
7018 1340 7051 871 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 1062 824 199 KPNQwest Backbone AS
8402 1060 352 13 Corbina telecom
34984 574 108 178 Tellcom Iletisim Hizmetleri
20940 543 182 418 Akamai Technologies European
9116 540 326 31 Goldenlines main autonomous s
6830 534 1813 325 UPC Distribution Services
3292 530 2082 408 TDC Tele Danmark
3320 501 8169 383 Deutsche Telekom AG
12479 476 594 8 Uni2 Autonomous System
8866 461 133 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 1456 2805 349 Uninet S.A. de C.V.
28573 1355 1013 70 Types of queries are: POCs, o
7303 1163 682 174 Telecom Argentina Stet-France
14420 736 58 88 Types of queries are: POCs, o
6503 587 450 70 AVANTEL, S.A.
27947 585 56 76 Telconet S.A
22047 580 322 17 Types of queries are: POCs, o
10481 548 430 20 Prima S.A.
3816 535 232 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 811 147 43 LINKdotNET AS number
8452 711 445 11 TEDATA
15475 450 74 8 Nile Online
36992 293 415 14 Etisalat MISR
3741 274 938 229 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 3561 3817 226 bellsouth.net, inc.
17974 2004 519 33 PT TELEKOMUNIKASI INDONESIA
4766 1939 11056 650 Korea Telecom (KIX)
18566 1915 366 239 Covad Communications
1785 1828 680 124 AppliedTheory Corporation
7029 1732 1018 219 Windstream Communications Inc
10620 1681 310 155 TVCABLE BOGOTA
4323 1624 1098 391 Time Warner Telecom
7545 1604 303 86 TPG Internet Pty Ltd
20115 1594 1543 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 2004 1971 PT TELEKOMUNIKASI INDONESIA
1785 1828 1704 AppliedTheory Corporation
18566 1915 1676 Covad Communications
10620 1681 1526 TVCABLE BOGOTA
7545 1604 1518 TPG Internet Pty Ltd
7029 1732 1513 Windstream Communications Inc
23456 3300 1507 >>UNKNOWN<<
7552 1392 1385 Vietel Corporation
4755 1540 1366 Videsh Sanchar Nigam Ltd. Aut
22773 1459 1360 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
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
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<<
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 /8:21 /9:12 /10:27 /11:81 /12:235
/13:464 /14:808 /15:1452 /16:12111 /17:6243 /18:10336
/19:20375 /20:28213 /21:27589 /22:37048 /23:35437 /24:196195
/25:74 /26:88 /27:121 /28:293 /29:104 /30:554
/31:73 /32:494
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2197 3561 bellsouth.net, inc.
18566 1870 1915 Covad Communications
10620 1576 1681 TVCABLE BOGOTA
23456 1576 3300 #
7029 1421 1732 Windstream Communications Inc
30036 1370 1413 Mediacom Communications Corp
11492 1115 1153 Cable One
7011 1060 1185 Citizens Utilities
1785 1052 1828 AppliedTheory Corporation
8402 1007 1060 Corbina telecom
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:383 2:319 4:19 5:1 6:3 8:354
12:1964 13:1 14:534 15:13 16:3 17:8
20:9 23:35 24:1690 27:942 31:555 32:149
33:4 34:2 36:4 38:749 40:108 41:2589
42:49 44:3 46:993 47:3 49:262 50:428
52:13 54:2 55:3 56:2 57:47 58:884
59:493 60:364 61:1180 62:1100 63:1962 64:4096
65:2305 66:4015 67:1974 68:1294 69:3307 70:861
71:377 72:1885 73:1 74:2509 75:361 76:349
77:875 78:814 79:492 80:1130 81:853 82:514
83:557 84:638 85:1091 86:417 87:884 88:357
89:1611 90:268 91:4137 92:535 93:1308 94:1294
95:926 96:439 97:276 98:933 99:37 101:209
103:325 106:70 107:53 108:80 109:1044 110:674
111:790 112:323 113:450 114:571 115:697 116:909
117:706 118:901 119:1213 120:335 121:700 122:1610
123:1013 124:1339 125:1393 128:245 129:181 130:166
131:583 132:115 133:21 134:215 135:54 136:213
137:138 138:288 139:133 140:495 141:290 142:391
143:413 144:489 145:61 146:473 147:226 148:694
149:261 150:153 151:193 152:446 153:177 154:6
155:388 156:207 157:362 158:146 159:463 160:323
161:204 162:340 163:177 164:508 165:403 166:538
167:434 168:746 169:148 170:864 171:83 172:1
173:1661 174:653 175:412 176:217 177:283 178:1030
180:1092 181:37 182:631 183:223 184:368 185:1
186:1468 187:674 188:928 189:844 190:5173 192:5943
193:5031 194:3552 195:3098 196:1235 197:176 198:3608
199:4139 200:5523 201:1636 202:8569 203:8494 204:4263
205:2363 206:2735 207:2833 208:4168 209:3542 210:2729
211:1469 212:2134 213:1784 214:778 215:75 216:4952
217:1612 218:565 219:339 220:1231 221:511 222:344
223:263
End of report
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