Routing Table Report 00:00 GMT Wed 03 Aug, 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: 369914
Prefixes after maximum aggregation: 167023
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 181688
Total ASes present in the Internet Routing Table: 38372
Prefixes per ASN: 9.64
Origin-only ASes present in the Internet Routing Table: 31895
Origin ASes announcing only one prefix: 15312
Transit ASes present in the Internet Routing Table: 5179
Transit-only ASes present in the Internet Routing Table: 148
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 4090
Unregistered ASNs in the Routing Table: 587
Number of 32-bit ASNs allocated by the RIRs: 1609
Number of 32-bit ASNs visible in the Routing Table: 1298
Prefixes from 32-bit ASNs in the Routing Table: 3011
Special use prefixes present in the Routing Table: 79
Prefixes being announced from unallocated address space: 118
Number of addresses announced to Internet: 2489780223
Equivalent to 148 /8s, 103 /16s and 7 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.2
Total number of prefixes smaller than registry allocations: 153332
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89449
Total APNIC prefixes after maximum aggregation: 29319
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 86106
Unique aggregates announced from the APNIC address blocks: 37611
APNIC Region origin ASes present in the Internet Routing Table: 4514
APNIC Prefixes per ASN: 19.08
APNIC Region origin ASes announcing only one prefix: 1261
APNIC Region transit ASes present in the Internet Routing Table: 715
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: 67
Number of APNIC addresses announced to Internet: 622642944
Equivalent to 37 /8s, 28 /16s and 199 /24s
Percentage of available APNIC address space announced: 79.0
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: 145238
Total ARIN prefixes after maximum aggregation: 75122
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 116724
Unique aggregates announced from the ARIN address blocks: 46714
ARIN Region origin ASes present in the Internet Routing Table: 14544
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5568
ARIN Region transit ASes present in the Internet Routing Table: 1509
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 803339544
Equivalent to 47 /8s, 225 /16s and 253 /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: 89392
Total RIPE prefixes after maximum aggregation: 49639
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 81892
Unique aggregates announced from the RIPE address blocks: 53149
RIPE Region origin ASes present in the Internet Routing Table: 15848
RIPE Prefixes per ASN: 5.17
RIPE Region origin ASes announcing only one prefix: 7889
RIPE Region transit ASes present in the Internet Routing Table: 2489
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 937
Number of RIPE addresses announced to Internet: 485141196
Equivalent to 28 /8s, 234 /16s and 170 /24s
Percentage of available RIPE address space announced: 78.2
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: 34271
Total LACNIC prefixes after maximum aggregation: 7625
LACNIC Deaggregation factor: 4.49
Prefixes being announced from the LACNIC address blocks: 33470
Unique aggregates announced from the LACNIC address blocks: 17302
LACNIC Region origin ASes present in the Internet Routing Table: 1491
LACNIC Prefixes per ASN: 22.45
LACNIC Region origin ASes announcing only one prefix: 443
LACNIC Region transit ASes present in the Internet Routing Table: 277
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 22
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 278
Number of LACNIC addresses announced to Internet: 87364096
Equivalent to 5 /8s, 53 /16s and 18 /24s
Percentage of available LACNIC address space announced: 57.9
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: 8330
Total AfriNIC prefixes after maximum aggregation: 2001
AfriNIC Deaggregation factor: 4.16
Prefixes being announced from the AfriNIC address blocks: 6610
Unique aggregates announced from the AfriNIC address blocks: 2032
AfriNIC Region origin ASes present in the Internet Routing Table: 480
AfriNIC Prefixes per ASN: 13.77
AfriNIC Region origin ASes announcing only one prefix: 151
AfriNIC Region transit ASes present in the Internet Routing Table: 107
Average AfriNIC Region AS path length visible: 4.2
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 26886144
Equivalent to 1 /8s, 154 /16s and 64 /24s
Percentage of available AfriNIC address space announced: 40.1
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 1936 11071 650 Korea Telecom (KIX)
17974 1792 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1557 301 85 TPG Internet Pty Ltd
4755 1515 379 168 Videsh Sanchar Nigam Ltd. Aut
24560 1195 336 187 Bharti Airtel Ltd.
9829 1114 929 42 BSNL National Internet Backbo
4808 1070 2117 294 CNCGROUP IP network: China169
9583 1058 77 496 Sify Limited
17488 991 186 120 Hathway IP Over Cable Interne
7552 952 1062 11 Vietel Corporation
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 3615 3818 239 bellsouth.net, inc.
18566 1913 365 241 Covad Communications
1785 1811 681 122 AppliedTheory Corporation
7029 1636 1023 206 Windstream Communications Inc
4323 1614 1098 400 Time Warner Telecom
20115 1591 1538 623 Charter Communications
19262 1413 4792 392 Verizon Global Networks
22773 1406 2900 90 Cox Communications, Inc.
7018 1369 7069 897 AT&T WorldNet Services
2386 1256 520 904 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 1037 797 190 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 534 106 185 Tellcom Iletisim Hizmetleri
3292 519 2078 403 TDC Tele Danmark
6830 513 1788 316 UPC Distribution Services
20940 467 133 360 Akamai Technologies European
12479 456 593 7 Uni2 Autonomous System
8866 455 133 26 Bulgarian Telecommunication C
29049 435 32 52 AzerSat LLC.
3320 425 8151 371 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 1567 289 166 TVCABLE BOGOTA
8151 1392 2732 357 Uninet S.A. de C.V.
28573 1261 996 67 Types of queries are: POCs, o
7303 1067 577 176 Telecom Argentina Stet-France
6503 765 451 79 AVANTEL, S.A.
14420 701 56 82 Types of queries are: POCs, o
22047 578 322 17 Types of queries are: POCs, o
10481 548 430 20 Prima S.A.
3816 534 232 96 COLOMBIA TELECOMUNICACIONES S
7738 516 986 31 Telecomunicacoes da Bahia 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
8452 801 445 11 TEDATA
24863 801 147 41 LINKdotNET AS number
15475 512 74 8 Nile Online
36992 314 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 260 519 14 Itissalat Al-MAGHRIB
33776 221 12 14 Starcomms Nigeria Limited
15706 216 32 6 Sudatel Internet Exchange Aut
24835 177 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 3615 3818 239 bellsouth.net, inc.
23456 3011 724 1615 >>UNKNOWN<<
4766 1936 11071 650 Korea Telecom (KIX)
18566 1913 365 241 Covad Communications
1785 1811 681 122 AppliedTheory Corporation
17974 1792 516 31 PT TELEKOMUNIKASI INDONESIA
7029 1636 1023 206 Windstream Communications Inc
4323 1614 1098 400 Time Warner Telecom
20115 1591 1538 623 Charter Communications
10620 1567 289 166 TVCABLE BOGOTA
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 1792 1761 PT TELEKOMUNIKASI INDONESIA
1785 1811 1689 AppliedTheory Corporation
18566 1913 1672 Covad Communications
7545 1557 1472 TPG Internet Pty Ltd
7029 1636 1430 Windstream Communications Inc
10620 1567 1401 TVCABLE BOGOTA
23456 3011 1396 >>UNKNOWN<<
4755 1515 1347 Videsh Sanchar Nigam Ltd. Aut
22773 1406 1316 Cox Communications, Inc.
4766 1936 1286 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 1239 Sprint
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 /8:21 /9:12 /10:27 /11:80 /12:233
/13:465 /14:805 /15:1435 /16:12169 /17:6157 /18:10205
/19:20048 /20:27404 /21:26849 /22:35333 /23:34574 /24:192420
/25:90 /26:87 /27:114 /28:227 /29:67 /30:518
/31:87 /32:487
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2238 3615 bellsouth.net, inc.
18566 1869 1913 Covad Communications
23456 1482 3011 >>UNKNOWN<<
10620 1462 1567 TVCABLE BOGOTA
7029 1317 1636 Windstream Communications Inc
11492 1096 1142 Cable One
7011 1057 1159 Citizens Utilities
1785 1051 1811 AppliedTheory Corporation
6478 972 1000 AT&T Worldnet Services
22773 905 1406 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:346 2:53 4:20 5:1 6:3 8:341
12:1962 13:1 14:498 15:15 16:3 17:5
20:10 23:18 24:1685 27:866 31:513 32:149
33:4 34:2 36:4 38:730 40:104 41:2614
42:36 44:3 46:1053 47:3 49:199 50:380
52:13 54:2 55:5 56:2 57:42 58:898
59:487 60:378 61:1222 62:1077 63:1961 64:4048
65:2302 66:3948 67:1920 68:1288 69:3141 70:823
71:373 72:1893 73:1 74:2482 75:341 76:349
77:862 78:711 79:482 80:1126 81:876 82:518
83:470 84:695 85:1083 86:535 87:770 88:337
89:1559 90:224 91:4000 92:528 93:1127 94:1338
95:873 96:424 97:263 98:931 99:37 101:83
103:178 106:79 107:28 108:81 109:1041 110:621
111:721 112:307 113:410 114:559 115:677 116:1005
117:663 118:864 119:1192 120:316 121:697 122:1611
123:993 124:1373 125:1288 128:247 129:172 130:168
131:581 132:115 133:21 134:215 135:52 136:213
137:138 138:296 139:128 140:481 141:257 142:406
143:432 144:484 145:57 146:456 147:224 148:673
149:252 150:158 151:190 152:341 153:182 154:5
155:400 156:199 157:354 158:140 159:457 160:318
161:205 162:310 163:163 164:507 165:396 166:533
167:434 168:742 169:154 170:838 171:81 172:1
173:1638 174:613 175:390 176:148 177:189 178:1013
180:928 181:26 182:511 183:234 184:342 185:1
186:1331 187:764 188:908 189:967 190:5024 192:5952
193:4992 194:3555 195:3139 196:1211 197:112 198:3597
199:4029 200:5573 201:1481 202:8426 203:8472 204:4247
205:2341 206:2733 207:2821 208:4121 209:3494 210:2693
211:1460 212:2147 213:1779 214:792 215:70 216:4954
217:1635 218:553 219:348 220:1208 221:512 222:360
223:237
End of report
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