Routing Table Report 00:00 GMT Thu 21 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: 369983
Prefixes after maximum aggregation: 166917
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 180703
Total ASes present in the Internet Routing Table: 38261
Prefixes per ASN: 9.67
Origin-only ASes present in the Internet Routing Table: 31770
Origin ASes announcing only one prefix: 15229
Transit ASes present in the Internet Routing Table: 5214
Transit-only ASes present in the Internet Routing Table: 138
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 35
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 4008
Unregistered ASNs in the Routing Table: 574
Number of 32-bit ASNs allocated by the RIRs: 1576
Number of 32-bit ASNs visible in the Routing Table: 1277
Prefixes from 32-bit ASNs in the Routing Table: 2939
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 122
Number of addresses announced to Internet: 2479635527
Equivalent to 147 /8s, 204 /16s and 60 /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: 154058
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 88952
Total APNIC prefixes after maximum aggregation: 29262
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 85629
Unique aggregates announced from the APNIC address blocks: 37432
APNIC Region origin ASes present in the Internet Routing Table: 4502
APNIC Prefixes per ASN: 19.02
APNIC Region origin ASes announcing only one prefix: 1263
APNIC Region transit ASes present in the Internet Routing Table: 709
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 61
Number of APNIC addresses announced to Internet: 622440449
Equivalent to 37 /8s, 25 /16s and 176 /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: 145173
Total ARIN prefixes after maximum aggregation: 75124
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 116694
Unique aggregates announced from the ARIN address blocks: 46655
ARIN Region origin ASes present in the Internet Routing Table: 14505
ARIN Prefixes per ASN: 8.05
ARIN Region origin ASes announcing only one prefix: 5537
ARIN Region transit ASes present in the Internet Routing Table: 1513
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 35
Number of ARIN region 32-bit ASNs visible in the Routing Table: 13
Number of ARIN addresses announced to Internet: 802516888
Equivalent to 47 /8s, 213 /16s and 111 /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: 90019
Total RIPE prefixes after maximum aggregation: 49651
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 82659
Unique aggregates announced from the RIPE address blocks: 52749
RIPE Region origin ASes present in the Internet Routing Table: 15830
RIPE Prefixes per ASN: 5.22
RIPE Region origin ASes announcing only one prefix: 7833
RIPE Region transit ASes present in the Internet Routing Table: 2530
Average RIPE Region AS path length visible: 4.1
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 932
Number of RIPE addresses announced to Internet: 480312204
Equivalent to 28 /8s, 160 /16s and 251 /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: 34270
Total LACNIC prefixes after maximum aggregation: 7669
LACNIC Deaggregation factor: 4.47
Prefixes being announced from the LACNIC address blocks: 33390
Unique aggregates announced from the LACNIC address blocks: 17095
LACNIC Region origin ASes present in the Internet Routing Table: 1486
LACNIC Prefixes per ASN: 22.47
LACNIC Region origin ASes announcing only one prefix: 444
LACNIC Region transit ASes present in the Internet Routing Table: 268
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: 267
Number of LACNIC addresses announced to Internet: 86136328
Equivalent to 5 /8s, 34 /16s and 86 /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: 8342
Total AfriNIC prefixes after maximum aggregation: 1968
AfriNIC Deaggregation factor: 4.24
Prefixes being announced from the AfriNIC address blocks: 6439
Unique aggregates announced from the AfriNIC address blocks: 1993
AfriNIC Region origin ASes present in the Internet Routing Table: 474
AfriNIC Prefixes per ASN: 13.58
AfriNIC Region origin ASes announcing only one prefix: 152
AfriNIC Region transit ASes present in the Internet Routing Table: 106
Average AfriNIC Region AS path length visible: 4.1
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: 24427520
Equivalent to 1 /8s, 116 /16s and 188 /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 1911 11052 634 Korea Telecom (KIX)
17974 1558 509 33 PT TELEKOMUNIKASI INDONESIA
7545 1552 301 84 TPG Internet Pty Ltd
4755 1506 375 170 Videsh Sanchar Nigam Ltd. Aut
7552 1298 1064 7 Vietel Corporation
24560 1155 336 187 Bharti Airtel Ltd.
9829 1106 923 47 BSNL National Internet Backbo
9583 1059 77 505 Sify Limited
4808 1016 2057 287 CNCGROUP IP network: China169
17488 980 187 106 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 3605 3818 238 bellsouth.net, inc.
18566 1956 372 222 Covad Communications
1785 1811 681 123 AppliedTheory Corporation
4323 1614 1098 401 Time Warner Telecom
20115 1587 1535 625 Charter Communications
19262 1411 4744 391 Verizon Global Networks
7029 1387 1031 207 Windstream Communications Inc
7018 1375 7086 902 AT&T WorldNet Services
22773 1352 2897 89 Cox Communications, Inc.
2386 1255 520 905 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 534 106 185 Tellcom Iletisim Hizmetleri
3292 521 2078 403 TDC Tele Danmark
6830 513 1788 317 UPC Distribution Services
20940 464 133 357 Akamai Technologies European
12479 455 593 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 1459 2728 356 Uninet S.A. de C.V.
28573 1280 995 77 Types of queries are: POCs, o
7303 1008 511 176 Telecom Argentina Stet-France
6503 760 354 75 AVANTEL, S.A.
14420 699 56 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 534 232 96 COLOMBIA TELECOMUNICACIONES S
27947 522 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 795 147 35 LINKdotNET AS number
8452 720 445 11 TEDATA
15475 511 74 8 Nile Online
36992 321 415 15 Etisalat MISR
16637 294 441 87 Johnnic e-Ventures
3741 262 937 223 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 226 13 5 Starcomms Nigeria Limited
24835 179 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 3605 3818 238 bellsouth.net, inc.
23456 2939 710 1578 >>UNKNOWN<<
18566 1956 372 222 Covad Communications
4766 1911 11052 634 Korea Telecom (KIX)
1785 1811 681 123 AppliedTheory Corporation
4323 1614 1098 401 Time Warner Telecom
20115 1587 1535 625 Charter Communications
17974 1558 509 33 PT TELEKOMUNIKASI INDONESIA
10620 1557 286 164 TVCABLE BOGOTA
7545 1552 301 84 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
18566 1956 1734 Covad Communications
1785 1811 1688 AppliedTheory Corporation
17974 1558 1525 PT TELEKOMUNIKASI INDONESIA
7545 1552 1468 TPG Internet Pty Ltd
10620 1557 1393 TVCABLE BOGOTA
23456 2939 1361 >>UNKNOWN<<
4755 1506 1336 Videsh Sanchar Nigam Ltd. Aut
7552 1298 1291 Vietel Corporation
4766 1911 1277 Korea Telecom (KIX)
22773 1352 1263 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 4323 Time Warner Telecom
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 /10:26 /11:80 /12:232
/13:465 /14:802 /15:1425 /16:12136 /17:6140 /18:10132
/19:20061 /20:27307 /21:26792 /22:35253 /23:34327 /24:191763
/25:390 /26:355 /27:182 /28:369 /29:282 /30:699
/31:63 /32:670
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2226 3605 bellsouth.net, inc.
18566 1906 1956 Covad Communications
10620 1452 1557 TVCABLE BOGOTA
23456 1446 2939 >>UNKNOWN<<
11492 1095 1141 Cable One
7029 1071 1387 Windstream Communications Inc
7011 1056 1158 Citizens Utilities
1785 1055 1811 AppliedTheory Corporation
6478 1013 1042 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 2:68 4:20 5:1 6:3 8:339
12:1967 13:1 14:485 15:15 16:3 17:5
20:10 23:14 24:1684 27:841 31:505 32:135
33:4 34:2 36:4 38:748 40:104 41:2525
42:34 44:3 46:1046 47:3 49:198 50:382
52:13 54:2 55:6 56:2 57:45 58:862
59:480 60:385 61:1128 62:1057 63:1956 64:4027
65:2298 66:3906 67:1908 68:1284 69:3158 70:805
71:386 72:1919 73:1 74:2466 75:330 76:349
77:929 78:718 79:484 80:1122 81:880 82:514
83:469 84:698 85:1083 86:538 87:786 88:339
89:1567 90:224 91:3979 92:527 93:1069 94:1379
95:912 96:422 97:262 98:928 99:37 101:80
103:139 106:73 107:22 108:81 109:1030 110:617
111:712 112:306 113:412 114:559 115:687 116:999
117:690 118:826 119:1174 120:314 121:693 122:1607
123:971 124:1303 125:1278 128:247 129:174 130:164
131:578 132:111 133:21 134:215 135:48 136:215
137:138 138:299 139:129 140:479 141:247 142:406
143:421 144:487 145:55 146:455 147:230 148:672
149:249 150:161 151:189 152:342 153:182 154:4
155:398 156:199 157:353 158:138 159:454 160:313
161:204 162:310 163:166 164:504 165:397 166:533
167:437 168:740 169:154 170:849 171:79 172:1
173:1623 174:612 175:382 176:144 177:175 178:1010
180:910 181:24 182:510 183:234 184:345 185:1
186:1285 187:771 188:895 189:935 190:5005 192:5936
193:5022 194:3584 195:3187 196:1219 197:41 198:3596
199:3987 200:5569 201:1480 202:8418 203:8432 204:4235
205:2351 206:2734 207:2823 208:4114 209:3514 210:2693
211:1455 212:2151 213:1818 214:770 215:70 216:4999
217:1687 218:545 219:343 220:1236 221:498 222:337
223:219
End of report
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