Routing Table Report 04:00 +10GMT Thu 07 Jul, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 362694
Prefixes after maximum aggregation: 164863
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 179949
Total ASes present in the Internet Routing Table: 38123
Prefixes per ASN: 9.51
Origin-only ASes present in the Internet Routing Table: 31701
Origin ASes announcing only one prefix: 15247
Transit ASes present in the Internet Routing Table: 5193
Transit-only ASes present in the Internet Routing Table: 135
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 33
Max AS path prepend of ASN (22394) 27
Prefixes from unregistered ASNs in the Routing Table: 909
Unregistered ASNs in the Routing Table: 498
Number of 32-bit ASNs allocated by the RIRs: 1524
Number of 32-bit ASNs visible in the Routing Table: 1229
Prefixes from 32-bit ASNs in the Routing Table: 2844
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 133
Number of addresses announced to Internet: 2493250240
Equivalent to 148 /8s, 155 /16s and 250 /24s
Percentage of available address space announced: 67.3
Percentage of allocated address space announced: 67.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.0
Total number of prefixes smaller than registry allocations: 151253
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90113
Total APNIC prefixes after maximum aggregation: 30249
APNIC Deaggregation factor: 2.98
Prefixes being announced from the APNIC address blocks: 86856
Unique aggregates announced from the APNIC address blocks: 37070
APNIC Region origin ASes present in the Internet Routing Table: 4501
APNIC Prefixes per ASN: 19.30
APNIC Region origin ASes announcing only one prefix: 1248
APNIC Region transit ASes present in the Internet Routing Table: 711
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 55
Number of APNIC addresses announced to Internet: 621416224
Equivalent to 37 /8s, 10 /16s and 15 /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: 141421
Total ARIN prefixes after maximum aggregation: 72806
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113378
Unique aggregates announced from the ARIN address blocks: 46625
ARIN Region origin ASes present in the Internet Routing Table: 14467
ARIN Prefixes per ASN: 7.84
ARIN Region origin ASes announcing only one prefix: 5533
ARIN Region transit ASes present in the Internet Routing Table: 1520
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 30
Number of ARIN region 32-bit ASNs visible in the Routing Table: 13
Number of ARIN addresses announced to Internet: 819539328
Equivalent to 48 /8s, 217 /16s and 45 /24s
Percentage of available ARIN address space announced: 65.1
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: 86438
Total RIPE prefixes after maximum aggregation: 49110
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 79864
Unique aggregates announced from the RIPE address blocks: 52777
RIPE Region origin ASes present in the Internet Routing Table: 15792
RIPE Prefixes per ASN: 5.06
RIPE Region origin ASes announcing only one prefix: 7875
RIPE Region transit ASes present in the Internet Routing Table: 2507
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: 907
Number of RIPE addresses announced to Internet: 478749184
Equivalent to 28 /8s, 137 /16s and 34 /24s
Percentage of available RIPE address space announced: 77.1
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: 33438
Total LACNIC prefixes after maximum aggregation: 7591
LACNIC Deaggregation factor: 4.40
Prefixes being announced from the LACNIC address blocks: 32541
Unique aggregates announced from the LACNIC address blocks: 16946
LACNIC Region origin ASes present in the Internet Routing Table: 1479
LACNIC Prefixes per ASN: 22.00
LACNIC Region origin ASes announcing only one prefix: 444
LACNIC Region transit ASes present in the Internet Routing Table: 273
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: 250
Number of LACNIC addresses announced to Internet: 85864960
Equivalent to 5 /8s, 30 /16s and 50 /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: 8225
Total AfriNIC prefixes after maximum aggregation: 1968
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6482
Unique aggregates announced from the AfriNIC address blocks: 1980
AfriNIC Region origin ASes present in the Internet Routing Table: 470
AfriNIC Prefixes per ASN: 13.79
AfriNIC Region origin ASes announcing only one prefix: 147
AfriNIC Region transit ASes present in the Internet Routing Table: 105
Average AfriNIC Region AS path length visible: 4.8
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: 24279040
Equivalent to 1 /8s, 114 /16s and 120 /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 2464 9515 931 Korea Telecom (KIX)
17974 1784 460 43 PT TELEKOMUNIKASI INDONESIA
7545 1548 301 85 TPG Internet Pty Ltd
4755 1491 635 169 TATA Communications formerly
24560 1153 336 187 Bharti Airtel Ltd., Telemedia
9829 1098 914 45 BSNL National Internet Backbo
9583 1057 78 503 Sify Limited
4808 1047 2092 299 CNCGROUP IP network: China169
17488 964 186 105 Hathway IP Over Cable Interne
18101 930 116 139 Reliance Infocom Ltd Internet
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 3615 3819 245 bellsouth.net, inc.
18566 1913 365 241 Covad Communications
1785 1802 681 122 PaeTec Communications, Inc.
4323 1656 1082 400 Time Warner Telecom
20115 1595 1533 634 Charter Communications
19262 1449 4806 370 Verizon Global Networks
7018 1364 7069 891 AT&T WorldNet Services
22773 1349 2897 88 Cox Communications, Inc.
6478 1343 249 617 AT&T Worldnet Services
7029 1284 790 298 Windstream Communications Inc
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 536 106 184 BILISIM TELEKOM
6830 512 1780 317 UPC Distribution Services
3292 467 2077 402 TDC Tele Danmark
20940 467 137 360 Akamai Technologies European
12479 451 593 7 Uni2 Autonomous System
8866 449 134 26 Bulgarian Telecommunication C
29049 440 33 45 AzerSat LLC.
3320 420 8151 367 Deutsche Telekom AG
8551 404 354 44 Bezeq International
35819 398 78 9 Bayanat Al-Oula Autonomous Sy
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 1541 282 157 TVCABLE BOGOTA
8151 1430 2742 355 UniNet S.A. de C.V.
28573 1269 995 79 NET Servicos de Comunicao S.A
7303 1002 509 177 Telecom Argentina Stet-France
6503 749 354 74 AVANTEL, S.A.
14420 688 55 83 CORPORACION NACIONAL DE TELEC
22047 576 322 17 VTR PUNTO NET S.A.
3816 530 229 96 Empresa Nacional de Telecomun
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 505 53 53 Telconet S.A
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
8452 795 445 11 TEDATA
24863 790 147 37 LINKdotNET AS number
15475 524 74 8 Nile Online
36992 315 415 14 Etisalat MISR
3741 261 937 223 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 192 17 11 Ci Telecom Autonomous system
16637 149 441 86 MTN Network Solutions
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 3615 3819 245 bellsouth.net, inc.
23456 2844 694 1522 32-bit ASN transition
4766 2464 9515 931 Korea Telecom (KIX)
18566 1913 365 241 Covad Communications
1785 1802 681 122 PaeTec Communications, Inc.
17974 1784 460 43 PT TELEKOMUNIKASI INDONESIA
4323 1656 1082 400 Time Warner Telecom
20115 1595 1533 634 Charter Communications
7545 1548 301 85 TPG Internet Pty Ltd
10620 1541 282 157 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 1784 1741 PT TELEKOMUNIKASI INDONESIA
1785 1802 1680 PaeTec Communications, Inc.
18566 1913 1672 Covad Communications
4766 2464 1533 Korea Telecom (KIX)
7545 1548 1463 TPG Internet Pty Ltd
10620 1541 1384 TVCABLE BOGOTA
23456 2844 1322 32-bit ASN transition
4755 1491 1322 TATA Communications formerly
22773 1349 1261 Cox Communications, Inc.
4323 1656 1256 Time Warner Telecom
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
27.0.128.0/17 7514 Media Exchange, Inc.
41.190.32.0/23 31856 CABSAS
41.190.34.0/23 31856 CABSAS
41.190.36.0/23 31856 CABSAS
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 /8:22 /9:12 /10:28 /11:81 /12:230
/13:466 /14:803 /15:1397 /16:11994 /17:5883 /18:9811
/19:19458 /20:25844 /21:26171 /22:34602 /23:33572 /24:189009
/25:1083 /26:1262 /27:736 /28:213 /29:9 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2226 3615 bellsouth.net, inc.
18566 1869 1913 Covad Communications
10620 1436 1541 TVCABLE BOGOTA
23456 1401 2844 32-bit ASN transition
6478 1314 1343 AT&T Worldnet Services
11492 1094 1140 Cable One
7011 1055 1156 Citizens Utilities
1785 1052 1802 PaeTec Communications, Inc.
7029 1031 1284 Windstream Communications Inc
22773 863 1349 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:323 2:46 4:16 5:1 6:3 8:338
12:1975 13:1 14:479 15:15 16:3 17:5
20:10 23:13 24:1664 27:813 31:488 32:64
33:4 34:2 36:4 38:743 40:103 41:2581
42:31 44:3 46:1036 47:3 49:195 50:438
52:13 54:2 55:4 56:2 57:35 58:860
59:478 60:387 61:1173 62:1034 63:1933 64:3940
65:2302 66:3872 67:1898 68:1091 69:3041 70:757
71:389 72:1893 74:2387 75:313 76:341 77:887
78:712 79:462 80:1115 81:839 82:496 83:457
84:693 85:1073 86:552 87:762 88:336 89:1533
90:221 91:3936 92:536 93:1053 94:1339 95:850
96:446 97:255 98:889 99:36 101:77 103:106
106:10 107:20 108:71 109:1032 110:614 111:709
112:303 113:409 114:544 115:673 116:969 117:670
118:857 119:1163 120:311 121:673 122:1600 123:969
124:1300 125:1231 128:246 129:171 130:167 131:578
132:112 133:21 134:214 135:48 136:216 137:136
138:299 139:116 140:478 141:241 142:403 143:416
144:484 145:54 146:449 147:214 148:663 149:247
150:164 151:189 152:330 153:180 154:4 155:400
156:196 157:351 158:137 159:453 160:311 161:208
162:309 163:165 164:503 165:359 166:529 167:430
168:741 169:156 170:847 171:78 172:1 173:1641
174:609 175:380 176:141 177:163 178:991 180:880
181:21 182:487 183:219 184:327 185:1 186:1273
187:709 188:880 189:937 190:4937 192:5895 193:4973
194:3500 195:3030 196:1240 197:41 198:3572 199:3962
200:5532 201:1497 202:8393 203:8430 204:4220 205:2336
206:2686 207:2811 208:3962 209:3442 210:2695 211:1459
212:2096 213:1724 214:777 215:69 216:4934 217:1648
218:544 219:359 220:1202 221:492 222:361 223:183
End of report
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