Routing Table Report 00:00 GMT Fri 06 May, 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: 360961
Prefixes after maximum aggregation: 162515
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 176009
Total ASes present in the Internet Routing Table: 37499
Prefixes per ASN: 9.63
Origin-only ASes present in the Internet Routing Table: 31388
Origin ASes announcing only one prefix: 15045
Transit ASes present in the Internet Routing Table: 5061
Transit-only ASes present in the Internet Routing Table: 122
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 23
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 3217
Unregistered ASNs in the Routing Table: 324
Number of 32-bit ASNs allocated by the RIRs: 1328
Number of 32-bit ASNs visible in the Routing Table: 1050
Prefixes from 32-bit ASNs in the Routing Table: 2381
Special use prefixes present in the Routing Table: 76
Prefixes being announced from unallocated address space: 214
Number of addresses announced to Internet: 2421995497
Equivalent to 144 /8s, 92 /16s and 183 /24s
Percentage of available address space announced: 65.3
Percentage of allocated address space announced: 65.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 90.6
Total number of prefixes smaller than registry allocations: 149588
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 87119
Total APNIC prefixes after maximum aggregation: 28889
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 83729
Unique aggregates announced from the APNIC address blocks: 37083
APNIC Region origin ASes present in the Internet Routing Table: 4415
APNIC Prefixes per ASN: 18.96
APNIC Region origin ASes announcing only one prefix: 1237
APNIC Region transit ASes present in the Internet Routing Table: 692
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 48
Number of APNIC addresses announced to Internet: 612628417
Equivalent to 36 /8s, 131 /16s and 247 /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, 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: 143372
Total ARIN prefixes after maximum aggregation: 73306
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 115384
Unique aggregates announced from the ARIN address blocks: 45253
ARIN Region origin ASes present in the Internet Routing Table: 14371
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5480
ARIN Region transit ASes present in the Internet Routing Table: 1470
Average ARIN Region AS path length visible: 4.2
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: 800056344
Equivalent to 47 /8s, 175 /16s and 228 /24s
Percentage of available ARIN address space announced: 63.6
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: 87284
Total RIPE prefixes after maximum aggregation: 48341
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 79869
Unique aggregates announced from the RIPE address blocks: 50877
RIPE Region origin ASes present in the Internet Routing Table: 15599
RIPE Prefixes per ASN: 5.12
RIPE Region origin ASes announcing only one prefix: 7766
RIPE Region transit ASes present in the Internet Routing Table: 2466
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 23
Number of RIPE region 32-bit ASNs visible in the Routing Table: 779
Number of RIPE addresses announced to Internet: 468236908
Equivalent to 27 /8s, 232 /16s and 186 /24s
Percentage of available RIPE address space announced: 75.4
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: 32814
Total LACNIC prefixes after maximum aggregation: 7512
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 31867
Unique aggregates announced from the LACNIC address blocks: 16620
LACNIC Region origin ASes present in the Internet Routing Table: 1447
LACNIC Prefixes per ASN: 22.02
LACNIC Region origin ASes announcing only one prefix: 428
LACNIC Region transit ASes present in the Internet Routing Table: 264
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 207
Number of LACNIC addresses announced to Internet: 83057420
Equivalent to 4 /8s, 243 /16s and 91 /24s
Percentage of available LACNIC address space announced: 55.0
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: 7562
Total AfriNIC prefixes after maximum aggregation: 1795
AfriNIC Deaggregation factor: 4.21
Prefixes being announced from the AfriNIC address blocks: 6025
Unique aggregates announced from the AfriNIC address blocks: 1910
AfriNIC Region origin ASes present in the Internet Routing Table: 444
AfriNIC Prefixes per ASN: 13.57
AfriNIC Region origin ASes announcing only one prefix: 134
AfriNIC Region transit ASes present in the Internet Routing Table: 96
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 23043584
Equivalent to 1 /8s, 95 /16s and 158 /24s
Percentage of available AfriNIC address space announced: 34.3
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
4766 1875 9482 602 Korea Telecom (KIX)
17974 1804 507 30 PT TELEKOMUNIKASI INDONESIA
7545 1566 301 87 TPG Internet Pty Ltd
4755 1458 374 164 Videsh Sanchar Nigam Ltd. Aut
7552 1202 1064 7 Vietel Corporation
9583 1057 77 492 Sify Limited
9829 1036 872 57 BSNL National Internet Backbo
24560 1027 317 178 Bharti Airtel Ltd.
17488 960 165 100 Hathway IP Over Cable Interne
4808 957 2023 277 CNCGROUP IP network: China169
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 3646 3822 256 bellsouth.net, inc.
4323 2598 1103 399 Time Warner Telecom
1785 1788 681 127 AppliedTheory Corporation
18566 1765 353 220 Covad Communications
6478 1665 312 50 AT&T Worldnet Services
20115 1581 1539 636 Charter Communications
19262 1497 4949 299 Verizon Global Networks
7018 1362 6943 891 AT&T WorldNet Services
22773 1329 2897 87 Cox Communications, Inc.
2386 1266 535 909 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 1019 798 175 KPNQwest Backbone AS
9116 540 326 30 Goldenlines main autonomous s
6830 519 1780 320 UPC Distribution Services
3292 516 1997 391 TDC Tele Danmark
34984 508 106 184 Tellcom Iletisim Hizmetleri
20940 451 132 345 Akamai Technologies European
8866 445 134 26 Bulgarian Telecommunication C
29049 443 33 43 AzerSat LLC.
3320 422 7609 367 Deutsche Telekom AG
12479 414 577 6 Uni2 Autonomous System
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 1458 270 155 TVCABLE BOGOTA
8151 1370 2679 363 Uninet S.A. de C.V.
28573 1298 990 89 Types of queries are: POCs, o
7303 927 467 149 Telecom Argentina Stet-France
6503 800 354 74 AVANTEL, S.A.
14420 667 54 92 Types of queries are: POCs, o
22047 557 310 15 Types of queries are: POCs, o
3816 518 226 98 COLOMBIA TELECOMUNICACIONES S
11172 496 100 84 Alestra
14117 491 46 43 Telefonica del Sur 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 881 445 11 TEDATA
24863 783 147 38 LINKdotNET AS number
15475 429 90 8 Nile Online
36992 281 331 17 Etisalat MISR
3741 267 985 227 The Internet Solution
6713 240 215 13 Itissalat Al-MAGHRIB
33776 218 12 10 Starcomms Nigeria Limited
24835 171 78 10 RAYA Telecom - Egypt
29571 161 17 11 Ci Telecom Autonomous system
16637 150 441 85 Johnnic e-Ventures
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 3646 3822 256 bellsouth.net, inc.
4323 2598 1103 399 Time Warner Telecom
23456 2381 666 1289 >>UNKNOWN<<
4766 1875 9482 602 Korea Telecom (KIX)
17974 1804 507 30 PT TELEKOMUNIKASI INDONESIA
1785 1788 681 127 AppliedTheory Corporation
18566 1765 353 220 Covad Communications
6478 1665 312 50 AT&T Worldnet Services
20115 1581 1539 636 Charter Communications
7545 1566 301 87 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2598 2199 Time Warner Telecom
17974 1804 1774 PT TELEKOMUNIKASI INDONESIA
1785 1788 1661 AppliedTheory Corporation
6478 1665 1615 AT&T Worldnet Services
18566 1765 1545 Covad Communications
7545 1566 1479 TPG Internet Pty Ltd
10620 1458 1303 TVCABLE BOGOTA
4755 1458 1294 Videsh Sanchar Nigam Ltd. Aut
4766 1875 1273 Korea Telecom (KIX)
11492 1262 1247 Cable One
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
31.210.64.0/24 42926 Radore Autonomous System
31.210.65.0/24 42926 Radore Autonomous System
31.210.66.0/24 42926 Radore Autonomous System
31.210.67.0/24 42926 Radore Autonomous System
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 /10:28 /11:78 /12:222
/13:457 /14:796 /15:1422 /16:11821 /17:6013 /18:9988
/19:19779 /20:26319 /21:26149 /22:34369 /23:33288 /24:187572
/25:371 /26:346 /27:167 /28:281 /29:175 /30:605
/31:65 /32:618
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2246 3646 bellsouth.net, inc.
18566 1727 1765 Covad Communications
6478 1619 1665 AT&T Worldnet Services
10620 1348 1458 TVCABLE BOGOTA
4323 1303 2598 Time Warner Telecom
11492 1211 1262 Cable One
23456 1182 2381 >>UNKNOWN<<
7011 1062 1162 Citizens Utilities
1785 1054 1788 AppliedTheory Corporation
286 879 1019 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:267 2:70 4:18 5:1 6:3 8:354
12:1993 13:1 14:451 15:15 16:3 17:8
20:10 23:6 24:1636 27:737 31:294 32:126
33:3 34:2 37:1 38:766 40:101 41:2403
42:4 44:3 46:912 47:4 49:172 50:388
52:13 55:3 56:2 57:40 58:845 59:477
60:387 61:1270 62:1011 63:1933 64:3954 65:2311
66:4355 67:1898 68:1255 69:3066 70:744 71:351
72:1917 73:3 74:2398 75:315 76:346 77:877
78:695 79:475 80:1106 81:824 82:509 83:457
84:663 85:1087 86:610 87:775 88:332 89:1631
90:189 91:3746 92:512 93:1074 94:1297 95:815
96:482 97:255 98:841 99:35 101:73 103:9
107:6 108:84 109:952 110:576 111:704 112:319
113:400 114:538 115:656 116:951 117:674 118:818
119:1144 120:305 121:669 122:1619 123:1080 124:1254
125:1220 128:260 129:166 130:165 131:564 132:110
133:19 134:218 135:49 136:214 137:143 138:303
139:125 140:481 141:239 142:403 143:402 144:487
145:52 146:441 147:219 148:592 149:243 150:171
151:187 152:311 153:179 154:3 155:395 156:190
157:354 158:130 159:384 160:314 161:207 162:279
163:164 164:498 165:367 166:512 167:426 168:717
169:154 170:789 171:76 172:1 173:1561 174:542
175:373 177:113 178:865 180:817 181:19 182:438
183:207 184:341 185:1 186:1153 187:798 188:852
189:939 190:4853 192:5808 193:4863 194:3526 195:3109
196:1156 197:16 198:3587 199:3921 200:5529 201:1517
202:8336 203:8449 204:4147 205:2327 206:2772 207:3050
208:3972 209:3496 210:2735 211:1421 212:2022 213:1777
214:739 215:68 216:4913 217:1657 218:569 219:372
220:1206 221:466 222:342 223:145
End of report
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