Routing Table Report 04:00 +10GMT Wed 01 Jun, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 358494
Prefixes after maximum aggregation: 162108
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 177485
Total ASes present in the Internet Routing Table: 37729
Prefixes per ASN: 9.50
Origin-only ASes present in the Internet Routing Table: 31514
Origin ASes announcing only one prefix: 15143
Transit ASes present in the Internet Routing Table: 5103
Transit-only ASes present in the Internet Routing Table: 140
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 36
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 723
Unregistered ASNs in the Routing Table: 382
Number of 32-bit ASNs allocated by the RIRs: 1401
Number of 32-bit ASNs visible in the Routing Table: 1112
Prefixes from 32-bit ASNs in the Routing Table: 2562
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 170
Number of addresses announced to Internet: 2440624832
Equivalent to 145 /8s, 120 /16s and 250 /24s
Percentage of available address space announced: 65.8
Percentage of allocated address space announced: 65.8
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: 149344
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89159
Total APNIC prefixes after maximum aggregation: 30005
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 85625
Unique aggregates announced from the APNIC address blocks: 36671
APNIC Region origin ASes present in the Internet Routing Table: 4469
APNIC Prefixes per ASN: 19.16
APNIC Region origin ASes announcing only one prefix: 1253
APNIC Region transit ASes present in the Internet Routing Table: 703
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 48
Number of APNIC addresses announced to Internet: 618946336
Equivalent to 36 /8s, 228 /16s and 95 /24s
Percentage of available APNIC address space announced: 78.5
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: 140411
Total ARIN prefixes after maximum aggregation: 71335
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 112662
Unique aggregates announced from the ARIN address blocks: 45873
ARIN Region origin ASes present in the Internet Routing Table: 14395
ARIN Prefixes per ASN: 7.83
ARIN Region origin ASes announcing only one prefix: 5489
ARIN Region transit ASes present in the Internet Routing Table: 1510
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 801935616
Equivalent to 47 /8s, 204 /16s and 145 /24s
Percentage of available ARIN address space announced: 63.7
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: 85003
Total RIPE prefixes after maximum aggregation: 48458
RIPE Deaggregation factor: 1.75
Prefixes being announced from the RIPE address blocks: 78405
Unique aggregates announced from the RIPE address blocks: 51904
RIPE Region origin ASes present in the Internet Routing Table: 15644
RIPE Prefixes per ASN: 5.01
RIPE Region origin ASes announcing only one prefix: 7828
RIPE Region transit ASes present in the Internet Routing Table: 2467
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 36
Number of RIPE region 32-bit ASNs visible in the Routing Table: 821
Number of RIPE addresses announced to Internet: 474637568
Equivalent to 28 /8s, 74 /16s and 101 /24s
Percentage of available RIPE address space announced: 76.5
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: 32954
Total LACNIC prefixes after maximum aggregation: 7533
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 32190
Unique aggregates announced from the LACNIC address blocks: 16905
LACNIC Region origin ASes present in the Internet Routing Table: 1462
LACNIC Prefixes per ASN: 22.02
LACNIC Region origin ASes announcing only one prefix: 433
LACNIC Region transit ASes present in the Internet Routing Table: 263
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 21
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 226
Number of LACNIC addresses announced to Internet: 84371456
Equivalent to 5 /8s, 7 /16s and 104 /24s
Percentage of available LACNIC address space announced: 55.9
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: 8179
Total AfriNIC prefixes after maximum aggregation: 1920
AfriNIC Deaggregation factor: 4.26
Prefixes being announced from the AfriNIC address blocks: 6412
Unique aggregates announced from the AfriNIC address blocks: 1910
AfriNIC Region origin ASes present in the Internet Routing Table: 457
AfriNIC Prefixes per ASN: 14.03
AfriNIC Region origin ASes announcing only one prefix: 140
AfriNIC Region transit ASes present in the Internet Routing Table: 99
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: 5
Number of AfriNIC addresses announced to Internet: 23544320
Equivalent to 1 /8s, 103 /16s and 66 /24s
Percentage of available AfriNIC address space announced: 35.1
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 2461 9500 922 Korea Telecom (KIX)
17974 1834 516 32 PT TELEKOMUNIKASI INDONESIA
7545 1536 301 85 TPG Internet Pty Ltd
4755 1473 635 169 TATA Communications formerly
24560 1155 337 187 Bharti Airtel Ltd., Telemedia
7552 1138 1064 7 Vietel Corporation
4808 1086 2144 300 CNCGROUP IP network: China169
9583 1076 79 508 Sify Limited
9829 1041 877 53 BSNL National Internet Backbo
18101 930 116 140 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 3640 3822 254 bellsouth.net, inc.
4323 1973 1081 399 Time Warner Telecom
18566 1875 355 271 Covad Communications
1785 1789 681 123 PaeTec Communications, Inc.
6478 1705 317 42 AT&T Worldnet Services
20115 1535 1540 633 Charter Communications
19262 1491 4936 307 Verizon Global Networks
7018 1362 7052 886 AT&T WorldNet Services
22773 1336 2897 88 Cox Communications, Inc.
11492 1280 240 15 Cable One
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
6830 516 1780 319 UPC Distribution Services
34984 516 106 178 BILISIM TELEKOM
3292 461 2078 396 TDC Tele Danmark
20940 457 134 349 Akamai Technologies European
29049 451 33 48 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
12479 429 577 6 Uni2 Autonomous System
3320 425 8152 370 Deutsche Telekom AG
8551 406 355 45 Bezeq International
702 396 1803 310 UUNET - Commercial IP service
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 1503 275 158 TVCABLE BOGOTA
8151 1378 2710 364 UniNet S.A. de C.V.
28573 1325 992 86 NET Servicos de Comunicao S.A
7303 959 504 151 Telecom Argentina Stet-France
6503 731 354 73 AVANTEL, S.A.
14420 671 54 89 CORPORACION NACIONAL DE TELEC
22047 565 310 15 VTR PUNTO NET S.A.
3816 524 228 100 Empresa Nacional de Telecomun
7738 516 986 31 Telecomunicacoes da Bahia S.A
13489 514 262 123 Orbitel S.A. E.S.P.
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 870 445 11 TEDATA
24863 784 147 37 LINKdotNET AS number
15475 540 90 8 Nile Online
36992 307 399 15 Etisalat MISR
3741 263 937 226 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 218 12 11 Starcomms Nigeria Limited
24835 209 78 10 RAYA Telecom - Egypt
29571 193 19 12 Ci Telecom Autonomous system
16637 150 441 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 3640 3822 254 bellsouth.net, inc.
23456 2562 635 1381 32-bit ASN transition
4766 2461 9500 922 Korea Telecom (KIX)
4323 1973 1081 399 Time Warner Telecom
18566 1875 355 271 Covad Communications
17974 1834 516 32 PT TELEKOMUNIKASI INDONESIA
1785 1789 681 123 PaeTec Communications, Inc.
6478 1705 317 42 AT&T Worldnet Services
7545 1536 301 85 TPG Internet Pty Ltd
20115 1535 1540 633 Charter Communications
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 1834 1802 PT TELEKOMUNIKASI INDONESIA
1785 1789 1666 PaeTec Communications, Inc.
6478 1705 1663 AT&T Worldnet Services
18566 1875 1604 Covad Communications
4323 1973 1574 Time Warner Telecom
4766 2461 1539 Korea Telecom (KIX)
7545 1536 1451 TPG Internet Pty Ltd
10620 1503 1345 TVCABLE BOGOTA
4755 1473 1304 TATA Communications formerly
11492 1280 1265 Cable One
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.
31.131.8.0/21 51962 ERDENI SRL
31.131.32.0/21 12700 Vektor
41.190.32.0/23 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 /8:20 /9:12 /10:28 /11:81 /12:227
/13:461 /14:796 /15:1394 /16:11772 /17:5833 /18:9767
/19:19326 /20:25722 /21:25921 /22:34127 /23:33098 /24:186699
/25:1063 /26:1259 /27:712 /28:160 /29:8 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2241 3640 bellsouth.net, inc.
18566 1838 1875 Covad Communications
6478 1659 1705 AT&T Worldnet Services
10620 1393 1503 TVCABLE BOGOTA
23456 1247 2562 32-bit ASN transition
11492 1226 1280 Cable One
7011 1061 1160 Citizens Utilities
1785 1051 1789 PaeTec Communications, Inc.
4323 886 1973 Time Warner Telecom
22773 851 1336 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:280 2:48 4:16 5:1 6:3 8:337
12:1980 13:1 14:463 15:15 16:3 17:8
20:10 23:7 24:1647 27:779 31:359 32:60
33:4 34:2 37:1 38:738 40:102 41:2582
42:6 44:3 46:930 47:3 49:198 50:424
52:13 54:2 55:6 56:2 57:29 58:844
59:480 60:387 61:1232 62:1040 63:1938 64:3948
65:2293 66:4115 67:1871 68:1084 69:2998 70:707
71:352 72:1894 73:1 74:2356 75:304 76:341
77:870 78:704 79:459 80:1074 81:838 82:494
83:435 84:677 85:1060 86:593 87:753 88:332
89:1532 90:203 91:3792 92:516 93:1047 94:1280
95:803 96:506 97:250 98:856 99:35 101:59
103:34 106:1 107:7 108:85 109:951 110:605
111:707 112:304 113:401 114:536 115:679 116:957
117:692 118:828 119:1133 120:310 121:671 122:1625
123:997 124:1265 125:1226 128:262 129:173 130:164
131:570 132:109 133:19 134:213 135:48 136:214
137:143 138:300 139:110 140:482 141:239 142:404
143:404 144:484 145:54 146:447 147:212 148:594
149:242 150:169 151:186 152:328 153:178 154:3
155:397 156:194 157:323 158:138 159:380 160:317
161:207 162:282 163:164 164:500 165:354 166:515
167:428 168:730 169:155 170:805 171:77 172:1
173:1556 174:551 175:369 176:130 177:148 178:993
180:852 181:17 182:453 183:201 184:286 185:1
186:1199 187:776 188:844 189:896 190:4837 192:5843
193:4899 194:3493 195:2995 196:1224 197:19 198:3571
199:3912 200:5544 201:1483 202:8287 203:8400 204:4171
205:2321 206:2679 207:2875 208:3966 209:3468 210:2722
211:1396 212:1989 213:1737 214:729 215:72 216:4910
217:1629 218:566 219:358 220:1203 221:491 222:342
223:149
End of report
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