Routing Table Report 04:00 +10GMT Fri 05 Aug, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 365609
Prefixes after maximum aggregation: 165891
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 181603
Total ASes present in the Internet Routing Table: 38375
Prefixes per ASN: 9.53
Origin-only ASes present in the Internet Routing Table: 31860
Origin ASes announcing only one prefix: 15320
Transit ASes present in the Internet Routing Table: 5219
Transit-only ASes present in the Internet Routing Table: 139
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 1027
Unregistered ASNs in the Routing Table: 583
Number of 32-bit ASNs allocated by the RIRs: 1618
Number of 32-bit ASNs visible in the Routing Table: 1296
Prefixes from 32-bit ASNs in the Routing Table: 3012
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 119
Number of addresses announced to Internet: 2489712000
Equivalent to 148 /8s, 101 /16s and 253 /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: 152511
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 91333
Total APNIC prefixes after maximum aggregation: 30271
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 87806
Unique aggregates announced from the APNIC address blocks: 37616
APNIC Region origin ASes present in the Internet Routing Table: 4530
APNIC Prefixes per ASN: 19.38
APNIC Region origin ASes announcing only one prefix: 1242
APNIC Region transit ASes present in the Internet Routing Table: 716
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 68
Number of APNIC addresses announced to Internet: 622942752
Equivalent to 37 /8s, 33 /16s and 90 /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: 141503
Total ARIN prefixes after maximum aggregation: 73183
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 113397
Unique aggregates announced from the ARIN address blocks: 46797
ARIN Region origin ASes present in the Internet Routing Table: 14537
ARIN Prefixes per ASN: 7.80
ARIN Region origin ASes announcing only one prefix: 5578
ARIN Region transit ASes present in the Internet Routing Table: 1536
Average ARIN Region AS path length visible: 4.0
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: 803525248
Equivalent to 47 /8s, 228 /16s and 210 /24s
Percentage of available ARIN address space announced: 63.9
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: 87267
Total RIPE prefixes after maximum aggregation: 49519
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 80522
Unique aggregates announced from the RIPE address blocks: 53068
RIPE Region origin ASes present in the Internet Routing Table: 15851
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7907
RIPE Region transit ASes present in the Internet Routing Table: 2508
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 932
Number of RIPE addresses announced to Internet: 484788288
Equivalent to 28 /8s, 229 /16s and 72 /24s
Percentage of available RIPE address space announced: 78.1
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: 34028
Total LACNIC prefixes after maximum aggregation: 7625
LACNIC Deaggregation factor: 4.46
Prefixes being announced from the LACNIC address blocks: 33206
Unique aggregates announced from the LACNIC address blocks: 17282
LACNIC Region origin ASes present in the Internet Routing Table: 1494
LACNIC Prefixes per ASN: 22.23
LACNIC Region origin ASes announcing only one prefix: 441
LACNIC Region transit ASes present in the Internet Routing Table: 279
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 280
Number of LACNIC addresses announced to Internet: 87456512
Equivalent to 5 /8s, 54 /16s and 123 /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: 8299
Total AfriNIC prefixes after maximum aggregation: 1981
AfriNIC Deaggregation factor: 4.19
Prefixes being announced from the AfriNIC address blocks: 6587
Unique aggregates announced from the AfriNIC address blocks: 2025
AfriNIC Region origin ASes present in the Internet Routing Table: 480
AfriNIC Prefixes per ASN: 13.72
AfriNIC Region origin ASes announcing only one prefix: 152
AfriNIC Region transit ASes present in the Internet Routing Table: 104
Average AfriNIC Region AS path length visible: 4.7
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: 26902784
Equivalent to 1 /8s, 154 /16s and 129 /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 2493 11046 949 Korea Telecom (KIX)
17974 1774 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1560 301 85 TPG Internet Pty Ltd
4755 1520 635 169 TATA Communications formerly
24560 1196 336 187 Bharti Airtel Ltd., Telemedia
9829 1114 929 42 BSNL National Internet Backbo
9583 1070 78 491 Sify Limited
4808 1056 2097 300 CNCGROUP IP network: China169
7552 999 1062 11 Vietel Corporation
17488 978 187 121 Hathway IP Over Cable Interne
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3583 3818 232 bellsouth.net, inc.
18566 1913 365 240 Covad Communications
1785 1813 681 121 PaeTec Communications, Inc.
4323 1616 1082 400 Time Warner Telecom
7029 1604 993 230 Windstream Communications Inc
20115 1591 1538 623 Charter Communications
22773 1405 2900 90 Cox Communications, Inc.
7018 1358 7052 887 AT&T WorldNet Services
2386 1255 520 905 AT&T Data Communications Serv
7011 1160 279 624 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
34984 534 106 185 BILISIM TELEKOM
6830 511 1788 316 UPC Distribution Services
3292 469 2080 404 TDC Tele Danmark
20940 469 134 362 Akamai Technologies European
12479 455 593 7 Uni2 Autonomous System
8866 454 133 26 Bulgarian Telecommunication C
29049 434 32 52 AzerSat LLC.
3320 425 8151 371 Deutsche Telekom AG
8551 404 354 44 Bezeq International
3301 397 1855 346 TeliaNet Sweden
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1569 289 163 TVCABLE BOGOTA
8151 1421 2766 351 UniNet S.A. de C.V.
28573 1277 996 67 NET Servicos de Comunicao S.A
7303 1067 578 173 Telecom Argentina Stet-France
6503 767 450 78 AVANTEL, S.A.
14420 703 56 84 CORPORACION NACIONAL DE TELEC
22047 578 322 17 VTR PUNTO NET S.A.
3816 532 232 97 Empresa Nacional de Telecomun
7738 516 986 31 Telecomunicacoes da Bahia S.A
11172 514 85 90 Servicios Alestra S.A de C.V
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 804 147 42 LINKdotNET AS number
8452 775 445 11 TEDATA
15475 512 74 8 Nile Online
36992 305 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 260 519 14 Itissalat Al-MAGHRIB
15706 230 32 6 Sudatel Internet Exchange Aut
33776 229 13 8 Starcomms Nigeria Limited
24835 176 78 10 RAYA Telecom - Egypt
29571 158 17 11 Ci Telecom Autonomous system
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3583 3818 232 bellsouth.net, inc.
23456 3012 727 1613 32-bit ASN transition
4766 2493 11046 949 Korea Telecom (KIX)
18566 1913 365 240 Covad Communications
1785 1813 681 121 PaeTec Communications, Inc.
17974 1774 516 31 PT TELEKOMUNIKASI INDONESIA
4323 1616 1082 400 Time Warner Telecom
7029 1604 993 230 Windstream Communications Inc
20115 1591 1538 623 Charter Communications
10620 1569 289 163 TVCABLE BOGOTA
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
17974 1774 1743 PT TELEKOMUNIKASI INDONESIA
1785 1813 1692 PaeTec Communications, Inc.
18566 1913 1673 Covad Communications
4766 2493 1544 Korea Telecom (KIX)
7545 1560 1475 TPG Internet Pty Ltd
10620 1569 1406 TVCABLE BOGOTA
23456 3012 1399 32-bit ASN transition
7029 1604 1374 Windstream Communications Inc
4755 1520 1351 TATA Communications formerly
22773 1405 1315 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/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/current/data-badAS
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/current/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 /10:27 /11:80 /12:233
/13:465 /14:799 /15:1410 /16:12061 /17:5910 /18:9912
/19:19512 /20:26333 /21:26364 /22:35002 /23:34015 /24:190113
/25:1100 /26:1290 /27:732 /28:202 /29:9 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2210 3583 bellsouth.net, inc.
18566 1869 1913 Covad Communications
23456 1480 3012 32-bit ASN transition
10620 1464 1569 TVCABLE BOGOTA
7029 1303 1604 Windstream Communications Inc
11492 1096 1142 Cable One
7011 1058 1160 Citizens Utilities
1785 1052 1813 PaeTec Communications, Inc.
6478 931 959 AT&T Worldnet Services
22773 904 1405 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:347 2:47 4:15 5:1 6:3 8:339
12:1961 13:1 14:498 15:15 16:3 17:5
20:10 23:18 24:1678 27:861 31:517 32:64
33:4 34:2 36:4 38:727 40:106 41:2584
42:37 44:3 46:1067 47:3 49:200 50:382
52:13 54:2 55:3 56:2 57:35 58:867
59:482 60:378 61:1187 62:1060 63:1929 64:3993
65:2296 66:3905 67:1888 68:1100 69:3032 70:742
71:262 72:1814 74:2367 75:329 76:341 77:861
78:706 79:475 80:1121 81:839 82:501 83:465
84:684 85:1073 86:518 87:835 88:334 89:1540
90:224 91:3992 92:527 93:1121 94:1333 95:873
96:372 97:264 98:920 99:37 101:85 103:186
106:79 107:30 108:57 109:1038 110:615 111:720
112:307 113:406 114:558 115:677 116:985 117:667
118:857 119:1177 120:210 121:680 122:1612 123:991
124:1373 125:1287 128:246 129:171 130:170 131:573
132:102 133:21 134:214 135:52 136:215 137:140
138:296 139:115 140:482 141:241 142:380 143:433
144:487 145:57 146:455 147:218 148:685 149:252
150:155 151:168 152:346 153:182 154:5 155:400
156:199 157:354 158:139 159:458 160:318 161:206
162:310 163:162 164:514 165:366 166:532 167:435
168:746 169:153 170:841 171:81 172:1 173:1624
174:619 175:392 176:147 177:195 178:1010 180:919
181:26 182:508 183:235 184:360 185:1 186:1329
187:764 188:914 189:967 190:5074 192:5920 193:4975
194:3511 195:3057 196:1190 197:112 198:3590 199:4019
200:5545 201:1479 202:8423 203:8458 204:4254 205:2314
206:2672 207:2798 208:3989 209:3400 210:2708 211:1411
212:2088 213:1760 214:803 215:70 216:4878 217:1627
218:529 219:348 220:1202 221:483 222:360 223:239
End of report
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