Routing Table Report 00:00 GMT Fri 30 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: 378950
Prefixes after maximum aggregation: 169772
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 180227
Total ASes present in the Internet Routing Table: 38950
Prefixes per ASN: 9.73
Origin-only ASes present in the Internet Routing Table: 32241
Origin ASes announcing only one prefix: 15483
Transit ASes present in the Internet Routing Table: 5253
Transit-only ASes present in the Internet Routing Table: 146
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 29
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 4769
Unregistered ASNs in the Routing Table: 799
Number of 32-bit ASNs allocated by the RIRs: 1796
Number of 32-bit ASNs visible in the Routing Table: 1456
Prefixes from 32-bit ASNs in the Routing Table: 3326
Special use prefixes present in the Routing Table: 82
Prefixes being announced from unallocated address space: 99
Number of addresses announced to Internet: 2312792218
Equivalent to 137 /8s, 218 /16s and 104 /24s
Percentage of available address space announced: 62.4
Percentage of allocated address space announced: 62.4
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: 157567
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92238
Total APNIC prefixes after maximum aggregation: 29634
APNIC Deaggregation factor: 3.11
Prefixes being announced from the APNIC address blocks: 88808
Unique aggregates announced from the APNIC address blocks: 36707
APNIC Region origin ASes present in the Internet Routing Table: 4558
APNIC Prefixes per ASN: 19.48
APNIC Region origin ASes announcing only one prefix: 1265
APNIC Region transit ASes present in the Internet Routing Table: 712
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 23
Number of APNIC region 32-bit ASNs visible in the Routing Table: 90
Number of APNIC addresses announced to Internet: 612331008
Equivalent to 36 /8s, 127 /16s and 110 /24s
Percentage of available APNIC address space announced: 77.7
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: 147404
Total ARIN prefixes after maximum aggregation: 75985
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 119201
Unique aggregates announced from the ARIN address blocks: 45299
ARIN Region origin ASes present in the Internet Routing Table: 14709
ARIN Prefixes per ASN: 8.10
ARIN Region origin ASes announcing only one prefix: 5641
ARIN Region transit ASes present in the Internet Routing Table: 1553
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: 667516060
Equivalent to 39 /8s, 201 /16s and 124 /24s
Percentage of available ARIN address space announced: 53.0
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: 91782
Total RIPE prefixes after maximum aggregation: 50554
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 83647
Unique aggregates announced from the RIPE address blocks: 52936
RIPE Region origin ASes present in the Internet Routing Table: 16014
RIPE Prefixes per ASN: 5.22
RIPE Region origin ASes announcing only one prefix: 7970
RIPE Region transit ASes present in the Internet Routing Table: 2530
Average RIPE Region AS path length visible: 4.5
Max RIPE Region AS path length visible: 29
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1033
Number of RIPE addresses announced to Internet: 474759628
Equivalent to 28 /8s, 76 /16s and 65 /24s
Percentage of available RIPE address space announced: 76.5
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: 35444
Total LACNIC prefixes after maximum aggregation: 7906
LACNIC Deaggregation factor: 4.48
Prefixes being announced from the LACNIC address blocks: 34670
Unique aggregates announced from the LACNIC address blocks: 18112
LACNIC Region origin ASes present in the Internet Routing Table: 1527
LACNIC Prefixes per ASN: 22.70
LACNIC Region origin ASes announcing only one prefix: 450
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: 317
Number of LACNIC addresses announced to Internet: 89335048
Equivalent to 5 /8s, 83 /16s and 37 /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: 8561
Total AfriNIC prefixes after maximum aggregation: 2014
AfriNIC Deaggregation factor: 4.25
Prefixes being announced from the AfriNIC address blocks: 6617
Unique aggregates announced from the AfriNIC address blocks: 1962
AfriNIC Region origin ASes present in the Internet Routing Table: 491
AfriNIC Prefixes per ASN: 13.48
AfriNIC Region origin ASes announcing only one prefix: 157
AfriNIC Region transit ASes present in the Internet Routing Table: 106
Average AfriNIC Region AS path length visible: 4.3
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: 27684864
Equivalent to 1 /8s, 166 /16s and 112 /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 2012 519 33 PT TELEKOMUNIKASI INDONESIA
4766 1944 11040 655 Korea Telecom (KIX)
7545 1604 303 86 TPG Internet Pty Ltd
4755 1539 378 173 Videsh Sanchar Nigam Ltd. Aut
7552 1392 1064 7 Vietel Corporation
24560 1184 346 190 Bharti Airtel Ltd.
9829 1158 989 28 BSNL National Internet Backbo
9583 1086 80 502 Sify Limited
4808 1077 2105 309 CNCGROUP IP network: China169
18101 952 166 143 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 3557 3817 225 bellsouth.net, inc.
18566 1915 366 239 Covad Communications
1785 1829 680 124 AppliedTheory Corporation
7029 1735 1018 220 Windstream Communications Inc
4323 1624 1098 391 Time Warner Telecom
20115 1595 1543 636 Charter Communications
22773 1456 2907 100 Cox Communications, Inc.
30036 1406 261 670 Mediacom Communications Corp
19262 1394 4728 400 Verizon Global Networks
7018 1340 7051 874 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 1064 824 199 KPNQwest Backbone AS
8402 1064 352 13 Corbina telecom
34984 577 108 180 Tellcom Iletisim Hizmetleri
6830 557 1873 332 UPC Distribution Services
20940 542 182 418 Akamai Technologies European
9116 540 326 31 Goldenlines main autonomous s
3292 529 2082 408 TDC Tele Danmark
3320 501 8169 383 Deutsche Telekom AG
12479 477 593 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 1444 2823 340 Uninet S.A. de C.V.
28573 1351 1013 70 Types of queries are: POCs, o
7303 1164 683 175 Telecom Argentina Stet-France
14420 742 58 87 Types of queries are: POCs, o
6503 586 450 70 AVANTEL, S.A.
22047 581 322 17 Types of queries are: POCs, o
10481 548 430 20 Prima S.A.
3816 535 232 98 COLOMBIA TELECOMUNICACIONES S
11172 519 101 93 Alestra
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 813 147 37 LINKdotNET AS number
8452 663 445 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 3557 3817 225 bellsouth.net, inc.
17974 2012 519 33 PT TELEKOMUNIKASI INDONESIA
4766 1944 11040 655 Korea Telecom (KIX)
18566 1915 366 239 Covad Communications
1785 1829 680 124 AppliedTheory Corporation
7029 1735 1018 220 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 1595 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 2012 1979 PT TELEKOMUNIKASI INDONESIA
1785 1829 1705 AppliedTheory Corporation
18566 1915 1676 Covad Communications
10620 1681 1526 TVCABLE BOGOTA
7545 1604 1518 TPG Internet Pty Ltd
7029 1735 1515 Windstream Communications Inc
7552 1392 1385 Vietel Corporation
4755 1539 1366 Videsh Sanchar Nigam Ltd. Aut
22773 1456 1356 Cox Communications, Inc.
4766 1944 1289 Korea Telecom (KIX)
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 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.155.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
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 /8:20 /9:12 /10:27 /11:81 /12:234
/13:464 /14:811 /15:1456 /16:12127 /17:6253 /18:10351
/19:20376 /20:28231 /21:27645 /22:37155 /23:35447 /24:196461
/25:73 /26:88 /27:117 /28:294 /29:104 /30:557
/31:73 /32:493
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2194 3557 bellsouth.net, inc.
18566 1870 1915 Covad Communications
10620 1576 1681 TVCABLE BOGOTA
7029 1424 1735 Windstream Communications Inc
30036 1363 1406 Mediacom Communications Corp
11492 1115 1153 Cable One
7011 1054 1175 Citizens Utilities
1785 1053 1829 AppliedTheory Corporation
8402 1011 1064 Corbina telecom
22773 945 1456 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 2:315 4:19 5:1 6:3 8:357
12:1959 13:1 14:530 15:13 16:3 17:7
20:10 23:35 24:1693 27:962 31:556 32:149
33:4 34:2 36:4 38:751 40:108 41:2645
42:49 44:3 46:997 47:3 49:262 50:433
52:13 55:3 56:2 57:47 58:883 59:492
60:365 61:1179 62:1107 63:1959 64:4096 65:2309
66:4029 67:1987 68:1295 69:3306 70:859 71:377
72:1887 73:1 74:2506 75:361 76:349 77:881
78:815 79:490 80:1130 81:856 82:515 83:594
84:628 85:1118 86:417 87:884 88:358 89:1612
90:268 91:4150 92:535 93:1313 94:1293 95:933
96:443 97:277 98:933 99:37 101:209 103:327
106:70 107:55 108:79 109:1042 110:667 111:797
112:322 113:453 114:577 115:699 116:905 117:706
118:904 119:1213 120:334 121:701 122:1606 123:1012
124:1357 125:1395 128:245 129:181 130:166 131:580
132:115 133:21 134:215 135:54 136:213 137:139
138:288 139:134 140:496 141:291 142:391 143:416
144:488 145:64 146:473 147:226 148:694 149:262
150:153 151:193 152:446 153:177 154:6 155:386
156:207 157:362 158:150 159:465 160:323 161:205
162:336 163:177 164:508 165:405 166:538 167:436
168:737 169:148 170:863 171:84 172:1 173:1659
174:655 175:420 176:217 177:284 178:1031 180:1098
181:37 182:631 183:213 184:367 185:1 186:1398
187:677 188:929 189:843 190:5127 192:5948 193:5028
194:3556 195:3099 196:1260 197:176 198:3638 199:4147
200:5526 201:1642 202:8586 203:8491 204:4261 205:2380
206:2737 207:2837 208:4202 209:3549 210:2725 211:1464
212:2125 213:1786 214:784 215:74 216:4950 217:1615
218:566 219:339 220:1229 221:514 222:343 223:263
End of report
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