Routing Table Report 00:00 GMT Thu 14 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: 368946
Prefixes after maximum aggregation: 166504
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 180459
Total ASes present in the Internet Routing Table: 38189
Prefixes per ASN: 9.66
Origin-only ASes present in the Internet Routing Table: 31740
Origin ASes announcing only one prefix: 15212
Transit ASes present in the Internet Routing Table: 5188
Transit-only ASes present in the Internet Routing Table: 121
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 31
Max AS path prepend of ASN (22394) 27
Prefixes from unregistered ASNs in the Routing Table: 4004
Unregistered ASNs in the Routing Table: 556
Number of 32-bit ASNs allocated by the RIRs: 1548
Number of 32-bit ASNs visible in the Routing Table: 1261
Prefixes from 32-bit ASNs in the Routing Table: 2924
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 123
Number of addresses announced to Internet: 2478477127
Equivalent to 147 /8s, 186 /16s and 143 /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: 153747
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 88115
Total APNIC prefixes after maximum aggregation: 29145
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 84979
Unique aggregates announced from the APNIC address blocks: 37368
APNIC Region origin ASes present in the Internet Routing Table: 4495
APNIC Prefixes per ASN: 18.91
APNIC Region origin ASes announcing only one prefix: 1262
APNIC Region transit ASes present in the Internet Routing Table: 707
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 59
Number of APNIC addresses announced to Internet: 621653185
Equivalent to 37 /8s, 13 /16s and 172 /24s
Percentage of available APNIC address space announced: 78.8
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: 145088
Total ARIN prefixes after maximum aggregation: 75018
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 116736
Unique aggregates announced from the ARIN address blocks: 46741
ARIN Region origin ASes present in the Internet Routing Table: 14478
ARIN Prefixes per ASN: 8.06
ARIN Region origin ASes announcing only one prefix: 5523
ARIN Region transit ASes present in the Internet Routing Table: 1491
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 31
Number of ARIN region 32-bit ASNs visible in the Routing Table: 13
Number of ARIN addresses announced to Internet: 803062680
Equivalent to 47 /8s, 221 /16s and 195 /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: 89931
Total RIPE prefixes after maximum aggregation: 49510
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 82536
Unique aggregates announced from the RIPE address blocks: 52666
RIPE Region origin ASes present in the Internet Routing Table: 15834
RIPE Prefixes per ASN: 5.21
RIPE Region origin ASes announcing only one prefix: 7835
RIPE Region transit ASes present in the Internet Routing Table: 2539
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 25
Number of RIPE region 32-bit ASNs visible in the Routing Table: 923
Number of RIPE addresses announced to Internet: 479996620
Equivalent to 28 /8s, 156 /16s and 42 /24s
Percentage of available RIPE address space announced: 77.3
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: 34148
Total LACNIC prefixes after maximum aggregation: 7636
LACNIC Deaggregation factor: 4.47
Prefixes being announced from the LACNIC address blocks: 33247
Unique aggregates announced from the LACNIC address blocks: 17019
LACNIC Region origin ASes present in the Internet Routing Table: 1481
LACNIC Prefixes per ASN: 22.45
LACNIC Region origin ASes announcing only one prefix: 446
LACNIC Region transit ASes present in the Internet Routing Table: 266
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: 262
Number of LACNIC addresses announced to Internet: 85959944
Equivalent to 5 /8s, 31 /16s and 165 /24s
Percentage of available LACNIC address space announced: 56.9
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: 8415
Total AfriNIC prefixes after maximum aggregation: 1982
AfriNIC Deaggregation factor: 4.25
Prefixes being announced from the AfriNIC address blocks: 6494
Unique aggregates announced from the AfriNIC address blocks: 1994
AfriNIC Region origin ASes present in the Internet Routing Table: 469
AfriNIC Prefixes per ASN: 13.85
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: 4.4
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 24320768
Equivalent to 1 /8s, 115 /16s and 27 /24s
Percentage of available AfriNIC address space announced: 36.2
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 11068 638 Korea Telecom (KIX)
17974 1555 458 45 PT TELEKOMUNIKASI INDONESIA
7545 1551 301 84 TPG Internet Pty Ltd
4755 1499 375 168 Videsh Sanchar Nigam Ltd. Aut
24560 1154 336 187 Bharti Airtel Ltd.
9829 1106 923 47 BSNL National Internet Backbo
9583 1063 78 504 Sify Limited
17488 980 187 106 Hathway IP Over Cable Interne
4808 950 2011 276 CNCGROUP IP network: China169
18101 932 116 139 Reliance Infocom Ltd Internet
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 3602 3819 243 bellsouth.net, inc.
18566 1957 372 223 Covad Communications
1785 1808 681 122 AppliedTheory Corporation
4323 1655 1098 401 Time Warner Telecom
20115 1594 1534 626 Charter Communications
19262 1430 4790 392 Verizon Global Networks
7029 1379 975 211 Windstream Communications Inc
7018 1375 7086 901 AT&T WorldNet Services
22773 1350 2897 88 Cox Communications, Inc.
2386 1262 521 907 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 1035 797 186 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 536 106 184 Tellcom Iletisim Hizmetleri
3292 523 2077 403 TDC Tele Danmark
6830 513 1780 317 UPC Distribution Services
20940 461 131 356 Akamai Technologies European
12479 457 593 7 Uni2 Autonomous System
8866 450 133 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 1543 282 158 TVCABLE BOGOTA
8151 1465 2728 356 Uninet S.A. de C.V.
28573 1276 995 78 Types of queries are: POCs, o
7303 1009 512 177 Telecom Argentina Stet-France
6503 759 354 75 AVANTEL, S.A.
14420 690 55 84 Types of queries are: POCs, o
22047 576 322 17 Types of queries are: POCs, o
10481 548 430 20 Prima S.A.
3816 534 230 96 COLOMBIA TELECOMUNICACIONES S
27947 520 53 53 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 794 147 36 LINKdotNET AS number
8452 780 445 11 TEDATA
15475 513 74 8 Nile Online
36992 315 415 14 Etisalat MISR
16637 294 441 87 Johnnic e-Ventures
3741 260 937 222 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 227 13 5 Starcomms Nigeria Limited
24835 211 78 10 RAYA Telecom - Egypt
29571 158 17 11 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 3602 3819 243 bellsouth.net, inc.
23456 2924 708 1559 >>UNKNOWN<<
18566 1957 372 223 Covad Communications
4766 1915 11068 638 Korea Telecom (KIX)
1785 1808 681 122 AppliedTheory Corporation
4323 1655 1098 401 Time Warner Telecom
20115 1594 1534 626 Charter Communications
17974 1555 458 45 PT TELEKOMUNIKASI INDONESIA
7545 1551 301 84 TPG Internet Pty Ltd
10620 1543 282 158 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
18566 1957 1734 Covad Communications
1785 1808 1686 AppliedTheory Corporation
17974 1555 1510 PT TELEKOMUNIKASI INDONESIA
7545 1551 1467 TPG Internet Pty Ltd
10620 1543 1385 TVCABLE BOGOTA
23456 2924 1365 >>UNKNOWN<<
4755 1499 1331 Videsh Sanchar Nigam Ltd. Aut
4766 1915 1277 Korea Telecom (KIX)
22773 1350 1262 Cox Communications, Inc.
4323 1655 1254 Time Warner Telecom
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 /15:1423 /16:12105 /17:6138 /18:10121
/19:20026 /20:27070 /21:26792 /22:35127 /23:34203 /24:191283
/25:392 /26:353 /27:182 /28:370 /29:286 /30:701
/31:63 /32:675
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2219 3602 bellsouth.net, inc.
18566 1907 1957 Covad Communications
10620 1438 1543 TVCABLE BOGOTA
23456 1437 2924 >>UNKNOWN<<
11492 1093 1139 Cable One
7029 1073 1379 Windstream Communications Inc
6478 1054 1083 AT&T Worldnet Services
7011 1054 1156 Citizens Utilities
1785 1053 1808 AppliedTheory Corporation
286 896 1035 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:326 2:73 4:20 5:1 6:3 8:337
12:1972 13:1 14:484 15:15 16:3 17:5
20:10 23:13 24:1684 27:814 31:496 32:135
33:4 34:2 36:4 38:745 40:103 41:2559
42:32 44:3 46:1047 47:3 49:199 50:469
52:13 54:2 55:5 56:2 57:45 58:860
59:479 60:386 61:1125 62:1055 63:1959 64:4013
65:2304 66:3927 67:1906 68:1266 69:3150 70:800
71:389 72:1920 73:2 74:2436 75:328 76:349
77:927 78:717 79:480 80:1127 81:882 82:517
83:460 84:703 85:1084 86:542 87:781 88:341
89:1574 90:224 91:3977 92:528 93:1071 94:1370
95:914 96:413 97:257 98:905 99:37 101:76
103:125 106:10 107:22 108:79 109:1037 110:628
111:711 112:304 113:408 114:556 115:676 116:979
117:666 118:825 119:1153 120:314 121:694 122:1600
123:971 124:1303 125:1234 128:243 129:175 130:169
131:567 132:111 133:21 134:213 135:48 136:216
137:137 138:298 139:129 140:471 141:178 142:406
143:419 144:483 145:55 146:452 147:222 148:682
149:248 150:162 151:192 152:341 153:182 154:4
155:397 156:199 157:355 158:138 159:450 160:313
161:201 162:313 163:164 164:504 165:392 166:533
167:434 168:737 169:155 170:850 171:78 172:1
173:1652 174:612 175:375 176:143 177:167 178:1011
180:883 181:24 182:495 183:225 184:395 185:1
186:1283 187:731 188:896 189:945 190:4967 192:5929
193:5000 194:3587 195:3170 196:1246 197:41 198:3590
199:3980 200:5560 201:1491 202:8433 203:8438 204:4237
205:2346 206:2730 207:2816 208:4096 209:3540 210:2698
211:1454 212:2157 213:1774 214:770 215:68 216:4992
217:1645 218:547 219:363 220:1205 221:498 222:338
223:216
End of report
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