Routing Table Report 00:00 GMT Tue 19 Jul, 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: 369728
Prefixes after maximum aggregation: 166701
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 180673
Total ASes present in the Internet Routing Table: 38236
Prefixes per ASN: 9.67
Origin-only ASes present in the Internet Routing Table: 31804
Origin ASes announcing only one prefix: 15211
Transit ASes present in the Internet Routing Table: 5161
Transit-only ASes present in the Internet Routing Table: 140
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 38
Max AS path prepend of ASN (22394) 27
Prefixes from unregistered ASNs in the Routing Table: 3965
Unregistered ASNs in the Routing Table: 560
Number of 32-bit ASNs allocated by the RIRs: 1566
Number of 32-bit ASNs visible in the Routing Table: 1271
Prefixes from 32-bit ASNs in the Routing Table: 2929
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 122
Number of addresses announced to Internet: 2479115720
Equivalent to 147 /8s, 196 /16s and 77 /24s
Percentage of available address space announced: 66.9
Percentage of allocated address space announced: 66.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.1
Total number of prefixes smaller than registry allocations: 153984
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 88830
Total APNIC prefixes after maximum aggregation: 29222
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 85522
Unique aggregates announced from the APNIC address blocks: 37529
APNIC Region origin ASes present in the Internet Routing Table: 4503
APNIC Prefixes per ASN: 18.99
APNIC Region origin ASes announcing only one prefix: 1260
APNIC Region transit ASes present in the Internet Routing Table: 709
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 60
Number of APNIC addresses announced to Internet: 622232066
Equivalent to 37 /8s, 22 /16s and 130 /24s
Percentage of available APNIC address space announced: 78.9
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
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: 145107
Total ARIN prefixes after maximum aggregation: 75025
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 116652
Unique aggregates announced from the ARIN address blocks: 46675
ARIN Region origin ASes present in the Internet Routing Table: 14497
ARIN Prefixes per ASN: 8.05
ARIN Region origin ASes announcing only one prefix: 5526
ARIN Region transit ASes present in the Internet Routing Table: 1495
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 30
Number of ARIN region 32-bit ASNs visible in the Routing Table: 13
Number of ARIN addresses announced to Internet: 802502808
Equivalent to 47 /8s, 213 /16s and 56 /24s
Percentage of available ARIN address space announced: 63.8
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: 89939
Total RIPE prefixes after maximum aggregation: 49604
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 82552
Unique aggregates announced from the RIPE address blocks: 52701
RIPE Region origin ASes present in the Internet Routing Table: 15825
RIPE Prefixes per ASN: 5.22
RIPE Region origin ASes announcing only one prefix: 7837
RIPE Region transit ASes present in the Internet Routing Table: 2501
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 38
Number of RIPE region 32-bit ASNs visible in the Routing Table: 931
Number of RIPE addresses announced to Internet: 480193036
Equivalent to 28 /8s, 159 /16s and 42 /24s
Percentage of available RIPE address space announced: 77.4
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: 34223
Total LACNIC prefixes after maximum aggregation: 7642
LACNIC Deaggregation factor: 4.48
Prefixes being announced from the LACNIC address blocks: 33345
Unique aggregates announced from the LACNIC address blocks: 17053
LACNIC Region origin ASes present in the Internet Routing Table: 1483
LACNIC Prefixes per ASN: 22.48
LACNIC Region origin ASes announcing only one prefix: 442
LACNIC Region transit ASes present in the Internet Routing Table: 273
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 263
Number of LACNIC addresses announced to Internet: 86096904
Equivalent to 5 /8s, 33 /16s and 188 /24s
Percentage of available LACNIC address space announced: 57.0
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: 8427
Total AfriNIC prefixes after maximum aggregation: 1973
AfriNIC Deaggregation factor: 4.27
Prefixes being announced from the AfriNIC address blocks: 6514
Unique aggregates announced from the AfriNIC address blocks: 1995
AfriNIC Region origin ASes present in the Internet Routing Table: 468
AfriNIC Prefixes per ASN: 13.92
AfriNIC Region origin ASes announcing only one prefix: 146
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: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 24460032
Equivalent to 1 /8s, 117 /16s and 59 /24s
Percentage of available AfriNIC address space announced: 36.4
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
4766 1915 11069 638 Korea Telecom (KIX)
7545 1552 301 84 TPG Internet Pty Ltd
17974 1545 456 46 PT TELEKOMUNIKASI INDONESIA
4755 1501 374 166 Videsh Sanchar Nigam Ltd. Aut
7552 1298 1064 7 Vietel Corporation
24560 1153 336 187 Bharti Airtel Ltd.
9829 1106 923 47 BSNL National Internet Backbo
9583 1064 78 504 Sify Limited
4808 1017 2059 288 CNCGROUP IP network: China169
17488 981 187 106 Hathway IP Over Cable Interne
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 3596 3818 241 bellsouth.net, inc.
18566 1957 372 223 Covad Communications
1785 1809 681 122 AppliedTheory Corporation
4323 1613 1098 400 Time Warner Telecom
20115 1595 1534 627 Charter Communications
19262 1411 4744 391 Verizon Global Networks
7029 1385 1031 207 Windstream Communications Inc
7018 1377 7086 903 AT&T WorldNet Services
22773 1352 2897 88 Cox Communications, Inc.
2386 1262 522 909 AT&T Data Communications Serv
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 1030 797 186 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 535 106 184 Tellcom Iletisim Hizmetleri
3292 523 2078 403 TDC Tele Danmark
6830 512 1780 316 UPC Distribution Services
20940 461 131 356 Akamai Technologies European
12479 456 593 7 Uni2 Autonomous System
8866 452 133 25 Bulgarian Telecommunication C
29049 432 32 47 AzerSat LLC.
3320 423 8151 369 Deutsche Telekom AG
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 1557 286 164 TVCABLE BOGOTA
8151 1457 2728 354 Uninet S.A. de C.V.
28573 1275 995 77 Types of queries are: POCs, o
7303 1008 512 176 Telecom Argentina Stet-France
6503 760 354 75 AVANTEL, S.A.
14420 690 55 84 Types of queries are: POCs, o
22047 578 322 17 Types of queries are: POCs, o
10481 548 430 20 Prima S.A.
3816 531 230 94 COLOMBIA TELECOMUNICACIONES S
27947 521 54 48 Telconet 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 792 147 35 LINKdotNET AS number
8452 788 445 11 TEDATA
15475 513 74 8 Nile Online
36992 315 415 14 Etisalat MISR
16637 294 441 87 Johnnic e-Ventures
3741 261 937 223 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 226 13 5 Starcomms Nigeria Limited
24835 175 78 10 RAYA Telecom - Egypt
29571 159 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 3596 3818 241 bellsouth.net, inc.
23456 2929 707 1574 >>UNKNOWN<<
18566 1957 372 223 Covad Communications
4766 1915 11069 638 Korea Telecom (KIX)
1785 1809 681 122 AppliedTheory Corporation
4323 1613 1098 400 Time Warner Telecom
20115 1595 1534 627 Charter Communications
10620 1557 286 164 TVCABLE BOGOTA
7545 1552 301 84 TPG Internet Pty Ltd
17974 1545 456 46 PT TELEKOMUNIKASI INDONESIA
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 1957 1734 Covad Communications
1785 1809 1687 AppliedTheory Corporation
17974 1545 1499 PT TELEKOMUNIKASI INDONESIA
7545 1552 1468 TPG Internet Pty Ltd
10620 1557 1393 TVCABLE BOGOTA
23456 2929 1355 >>UNKNOWN<<
4755 1501 1335 Videsh Sanchar Nigam Ltd. Aut
7552 1298 1291 Vietel Corporation
4766 1915 1277 Korea Telecom (KIX)
22773 1352 1264 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 1239 Sprint
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 /10:26 /11:80 /12:232
/13:464 /14:801 /15:1425 /16:12129 /17:6136 /18:10128
/19:20032 /20:27235 /21:26762 /22:35302 /23:34294 /24:191647
/25:391 /26:350 /27:181 /28:368 /29:282 /30:699
/31:63 /32:668
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2214 3596 bellsouth.net, inc.
18566 1907 1957 Covad Communications
10620 1452 1557 TVCABLE BOGOTA
23456 1441 2929 >>UNKNOWN<<
11492 1095 1141 Cable One
7029 1069 1385 Windstream Communications Inc
7011 1056 1158 Citizens Utilities
1785 1054 1809 AppliedTheory Corporation
6478 1012 1041 AT&T Worldnet Services
286 891 1030 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:331 2:67 4:20 5:1 6:3 8:339
12:1967 13:1 14:487 15:15 16:3 17:5
20:10 23:14 24:1683 27:838 31:506 32:135
33:4 34:2 36:4 38:750 40:104 41:2564
42:32 44:3 46:1043 47:3 49:201 50:394
52:13 54:2 55:5 56:2 57:45 58:858
59:482 60:387 61:1126 62:1056 63:1955 64:4020
65:2301 66:3913 67:1907 68:1281 69:3156 70:803
71:386 72:1918 73:1 74:2465 75:330 76:349
77:930 78:711 79:481 80:1125 81:878 82:516
83:460 84:701 85:1083 86:539 87:785 88:342
89:1573 90:224 91:3982 92:520 93:1069 94:1371
95:899 96:416 97:261 98:927 99:37 101:79
103:141 106:73 107:22 108:79 109:1025 110:614
111:713 112:305 113:410 114:559 115:686 116:994
117:689 118:820 119:1174 120:314 121:694 122:1604
123:975 124:1302 125:1278 128:247 129:174 130:169
131:578 132:111 133:21 134:214 135:48 136:210
137:138 138:297 139:129 140:482 141:244 142:406
143:420 144:486 145:55 146:455 147:231 148:672
149:248 150:161 151:189 152:342 153:182 154:4
155:396 156:199 157:353 158:137 159:454 160:313
161:203 162:310 163:164 164:503 165:397 166:532
167:434 168:737 169:154 170:846 171:78 172:1
173:1617 174:612 175:380 176:144 177:172 178:1010
180:909 181:23 182:497 183:232 184:347 185:1
186:1283 187:744 188:897 189:949 190:4994 192:5932
193:5018 194:3587 195:3189 196:1214 197:43 198:3586
199:3982 200:5566 201:1494 202:8421 203:8442 204:4236
205:2353 206:2733 207:2824 208:4112 209:3509 210:2693
211:1456 212:2144 213:1807 214:764 215:68 216:5003
217:1682 218:545 219:353 220:1234 221:498 222:337
223:217
End of report
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