Routing Table Report 00:00 GMT Wed 20 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: 369592
Prefixes after maximum aggregation: 166837
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 180901
Total ASes present in the Internet Routing Table: 38260
Prefixes per ASN: 9.66
Origin-only ASes present in the Internet Routing Table: 31774
Origin ASes announcing only one prefix: 15225
Transit ASes present in the Internet Routing Table: 5215
Transit-only ASes present in the Internet Routing Table: 141
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: 3991
Unregistered ASNs in the Routing Table: 569
Number of 32-bit ASNs allocated by the RIRs: 1570
Number of 32-bit ASNs visible in the Routing Table: 1271
Prefixes from 32-bit ASNs in the Routing Table: 2934
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 123
Number of addresses announced to Internet: 2479427015
Equivalent to 147 /8s, 201 /16s and 13 /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: 153751
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 88867
Total APNIC prefixes after maximum aggregation: 29211
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 85555
Unique aggregates announced from the APNIC address blocks: 37494
APNIC Region origin ASes present in the Internet Routing Table: 4503
APNIC Prefixes per ASN: 19.00
APNIC Region origin ASes announcing only one prefix: 1265
APNIC Region transit ASes present in the Internet Routing Table: 711
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: 622205953
Equivalent to 37 /8s, 22 /16s and 28 /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: 145097
Total ARIN prefixes after maximum aggregation: 75089
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 116632
Unique aggregates announced from the ARIN address blocks: 46636
ARIN Region origin ASes present in the Internet Routing Table: 14501
ARIN Prefixes per ASN: 8.04
ARIN Region origin ASes announcing only one prefix: 5532
ARIN Region transit ASes present in the Internet Routing Table: 1508
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: 13
Number of ARIN addresses announced to Internet: 802554776
Equivalent to 47 /8s, 214 /16s and 3 /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: 89826
Total RIPE prefixes after maximum aggregation: 49656
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 82486
Unique aggregates announced from the RIPE address blocks: 52930
RIPE Region origin ASes present in the Internet Routing Table: 15832
RIPE Prefixes per ASN: 5.21
RIPE Region origin ASes announcing only one prefix: 7833
RIPE Region transit ASes present in the Internet Routing Table: 2533
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 928
Number of RIPE addresses announced to Internet: 480278284
Equivalent to 28 /8s, 160 /16s and 119 /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: 34193
Total LACNIC prefixes after maximum aggregation: 7664
LACNIC Deaggregation factor: 4.46
Prefixes being announced from the LACNIC address blocks: 33317
Unique aggregates announced from the LACNIC address blocks: 17092
LACNIC Region origin ASes present in the Internet Routing Table: 1489
LACNIC Prefixes per ASN: 22.38
LACNIC Region origin ASes announcing only one prefix: 444
LACNIC Region transit ASes present in the Internet Routing Table: 271
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: 266
Number of LACNIC addresses announced to Internet: 86154248
Equivalent to 5 /8s, 34 /16s and 156 /24s
Percentage of available LACNIC address space announced: 57.1
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: 8386
Total AfriNIC prefixes after maximum aggregation: 1980
AfriNIC Deaggregation factor: 4.24
Prefixes being announced from the AfriNIC address blocks: 6456
Unique aggregates announced from the AfriNIC address blocks: 2001
AfriNIC Region origin ASes present in the Internet Routing Table: 474
AfriNIC Prefixes per ASN: 13.62
AfriNIC Region origin ASes announcing only one prefix: 151
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: 24495616
Equivalent to 1 /8s, 117 /16s and 198 /24s
Percentage of available AfriNIC address space announced: 36.5
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 1916 11069 639 Korea Telecom (KIX)
7545 1552 301 84 TPG Internet Pty Ltd
17974 1546 456 46 PT TELEKOMUNIKASI INDONESIA
4755 1504 375 168 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 1061 77 502 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 3603 3818 239 bellsouth.net, inc.
18566 1956 372 222 Covad Communications
1785 1810 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 1385 1031 207 Windstream Communications Inc
7018 1377 7086 903 AT&T WorldNet Services
22773 1351 2897 89 Cox Communications, Inc.
2386 1259 521 908 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 521 2078 403 TDC Tele Danmark
6830 512 1780 316 UPC Distribution Services
20940 461 131 356 Akamai Technologies European
12479 457 593 7 Uni2 Autonomous System
8866 452 133 25 Bulgarian Telecommunication C
29049 432 32 47 AzerSat LLC.
3320 422 8151 368 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 1462 2728 356 Uninet S.A. de C.V.
28573 1277 995 77 Types of queries are: POCs, o
7303 1010 512 178 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 792 147 35 LINKdotNET AS number
8452 771 445 11 TEDATA
15475 512 74 8 Nile Online
36992 317 415 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 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 3603 3818 239 bellsouth.net, inc.
23456 2934 708 1575 >>UNKNOWN<<
18566 1956 372 222 Covad Communications
4766 1916 11069 639 Korea Telecom (KIX)
1785 1810 681 123 AppliedTheory Corporation
4323 1614 1098 401 Time Warner Telecom
20115 1587 1535 625 Charter Communications
10620 1557 286 164 TVCABLE BOGOTA
7545 1552 301 84 TPG Internet Pty Ltd
17974 1546 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 1956 1734 Covad Communications
1785 1810 1687 AppliedTheory Corporation
17974 1546 1500 PT TELEKOMUNIKASI INDONESIA
7545 1552 1468 TPG Internet Pty Ltd
10620 1557 1393 TVCABLE BOGOTA
23456 2934 1359 >>UNKNOWN<<
4755 1504 1336 Videsh Sanchar Nigam Ltd. Aut
7552 1298 1291 Vietel Corporation
4766 1916 1277 Korea Telecom (KIX)
22773 1351 1262 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 /14:801 /15:1425 /16:12132 /17:6141 /18:10130
/19:20052 /20:27235 /21:26750 /22:35249 /23:34295 /24:191540
/25:389 /26:352 /27:183 /28:370 /29:284 /30:697
/31:63 /32:669
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2222 3603 bellsouth.net, inc.
18566 1906 1956 Covad Communications
10620 1452 1557 TVCABLE BOGOTA
23456 1445 2934 >>UNKNOWN<<
11492 1095 1141 Cable One
7029 1069 1385 Windstream Communications Inc
7011 1056 1158 Citizens Utilities
1785 1054 1810 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)
----------------------------------------------
1:332 2:70 4:20 5:1 6:3 8:338
12:1968 13:1 14:488 15:15 16:3 17:5
20:10 23:14 24:1682 27:841 31:503 32:135
33:4 34:2 36:4 38:750 40:104 41:2511
42:34 44:3 46:1047 47:3 49:201 50:379
52:13 54:2 55:5 56:2 57:46 58:862
59:481 60:387 61:1127 62:1055 63:1953 64:4019
65:2292 66:3910 67:1908 68:1282 69:3155 70:804
71:386 72:1919 73:1 74:2464 75:330 76:349
77:925 78:715 79:477 80:1122 81:878 82:514
83:460 84:703 85:1077 86:540 87:769 88:340
89:1563 90:224 91:3980 92:523 93:1069 94:1356
95:877 96:422 97:263 98:927 99:37 101:80
103:139 106:73 107:22 108:81 109:1027 110:614
111:710 112:305 113:411 114:558 115:686 116:990
117:690 118:827 119:1169 120:314 121:694 122:1605
123:972 124:1303 125:1275 128:247 129:174 130:169
131:578 132:111 133:21 134:214 135:48 136:216
137:138 138:298 139:129 140:482 141:246 142:406
143:418 144:487 145:55 146:454 147:231 148:673
149:249 150:161 151:189 152:342 153:182 154:4
155:397 156:199 157:352 158:137 159:454 160:312
161:203 162:310 163:161 164:504 165:397 166:532
167:436 168:738 169:154 170:850 171:78 172:1
173:1618 174:604 175:383 176:144 177:171 178:1004
180:910 181:24 182:508 183:233 184:347 185:1
186:1293 187:745 188:898 189:944 190:4964 192:5936
193:5021 194:3585 195:3190 196:1215 197:43 198:3591
199:3983 200:5568 201:1476 202:8422 203:8446 204:4239
205:2353 206:2733 207:2824 208:4118 209:3514 210:2694
211:1456 212:2156 213:1820 214:765 215:69 216:4999
217:1684 218:545 219:350 220:1235 221:498 222:337
223:218
End of report
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