Routing Table Report 04:00 +10GMT Fri 03 Jun, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 358603
Prefixes after maximum aggregation: 162337
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 178173
Total ASes present in the Internet Routing Table: 37758
Prefixes per ASN: 9.50
Origin-only ASes present in the Internet Routing Table: 31528
Origin ASes announcing only one prefix: 15150
Transit ASes present in the Internet Routing Table: 5106
Transit-only ASes present in the Internet Routing Table: 137
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: 741
Unregistered ASNs in the Routing Table: 388
Number of 32-bit ASNs allocated by the RIRs: 1419
Number of 32-bit ASNs visible in the Routing Table: 1124
Prefixes from 32-bit ASNs in the Routing Table: 2568
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 168
Number of addresses announced to Internet: 2450886080
Equivalent to 146 /8s, 21 /16s and 141 /24s
Percentage of available address space announced: 66.1
Percentage of allocated address space announced: 66.1
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: 149545
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 88870
Total APNIC prefixes after maximum aggregation: 30034
APNIC Deaggregation factor: 2.96
Prefixes being announced from the APNIC address blocks: 85327
Unique aggregates announced from the APNIC address blocks: 36710
APNIC Region origin ASes present in the Internet Routing Table: 4475
APNIC Prefixes per ASN: 19.07
APNIC Region origin ASes announcing only one prefix: 1255
APNIC Region transit ASes present in the Internet Routing Table: 705
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 47
Number of APNIC addresses announced to Internet: 619717408
Equivalent to 36 /8s, 240 /16s and 35 /24s
Percentage of available APNIC address space announced: 78.6
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: 140663
Total ARIN prefixes after maximum aggregation: 71473
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 112786
Unique aggregates announced from the ARIN address blocks: 46222
ARIN Region origin ASes present in the Internet Routing Table: 14397
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: 1508
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: 801974016
Equivalent to 47 /8s, 205 /16s and 39 /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: 85094
Total RIPE prefixes after maximum aggregation: 48526
RIPE Deaggregation factor: 1.75
Prefixes being announced from the RIPE address blocks: 78515
Unique aggregates announced from the RIPE address blocks: 52052
RIPE Region origin ASes present in the Internet Routing Table: 15658
RIPE Prefixes per ASN: 5.01
RIPE Region origin ASes announcing only one prefix: 7835
RIPE Region transit ASes present in the Internet Routing Table: 2468
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: 830
Number of RIPE addresses announced to Internet: 475114496
Equivalent to 28 /8s, 81 /16s and 172 /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: 33116
Total LACNIC prefixes after maximum aggregation: 7519
LACNIC Deaggregation factor: 4.40
Prefixes being announced from the LACNIC address blocks: 32222
Unique aggregates announced from the LACNIC address blocks: 16917
LACNIC Region origin ASes present in the Internet Routing Table: 1461
LACNIC Prefixes per ASN: 22.05
LACNIC Region origin ASes announcing only one prefix: 430
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: 230
Number of LACNIC addresses announced to Internet: 84509184
Equivalent to 5 /8s, 9 /16s and 130 /24s
Percentage of available LACNIC address space announced: 56.0
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: 8064
Total AfriNIC prefixes after maximum aggregation: 1905
AfriNIC Deaggregation factor: 4.23
Prefixes being announced from the AfriNIC address blocks: 6358
Unique aggregates announced from the AfriNIC address blocks: 1908
AfriNIC Region origin ASes present in the Internet Routing Table: 455
AfriNIC Prefixes per ASN: 13.97
AfriNIC Region origin ASes announcing only one prefix: 141
AfriNIC Region transit ASes present in the Internet Routing Table: 101
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: 23501056
Equivalent to 1 /8s, 102 /16s and 153 /24s
Percentage of available AfriNIC address space announced: 35.0
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 2460 9500 922 Korea Telecom (KIX)
7545 1537 301 86 TPG Internet Pty Ltd
17974 1535 441 38 PT TELEKOMUNIKASI INDONESIA
4755 1472 635 168 TATA Communications formerly
24560 1155 337 187 Bharti Airtel Ltd., Telemedia
7552 1134 1064 7 Vietel Corporation
4808 1090 2145 301 CNCGROUP IP network: China169
9583 1078 80 509 Sify Limited
9829 1043 879 55 BSNL National Internet Backbo
18101 932 116 140 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 3643 3822 256 bellsouth.net, inc.
4323 1973 1081 400 Time Warner Telecom
18566 1875 355 269 Covad Communications
1785 1788 681 122 PaeTec Communications, Inc.
6478 1714 318 43 AT&T Worldnet Services
20115 1535 1540 633 Charter Communications
19262 1492 4936 307 Verizon Global Networks
7018 1365 7068 893 AT&T WorldNet Services
22773 1338 2897 88 Cox Communications, Inc.
11492 1274 237 59 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 517 1780 320 UPC Distribution Services
34984 516 106 180 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 430 593 7 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 1512 278 157 TVCABLE BOGOTA
8151 1378 2710 365 UniNet S.A. de C.V.
28573 1320 992 86 NET Servicos de Comunicao S.A
7303 959 504 151 Telecom Argentina Stet-France
6503 734 354 73 AVANTEL, S.A.
14420 674 54 88 CORPORACION NACIONAL DE TELEC
22047 565 310 15 VTR PUNTO NET S.A.
3816 525 229 97 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 833 445 11 TEDATA
24863 792 147 37 LINKdotNET AS number
15475 543 90 8 Nile Online
36992 310 399 15 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 218 12 11 Starcomms Nigeria Limited
24835 208 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 3643 3822 256 bellsouth.net, inc.
23456 2568 641 1392 32-bit ASN transition
4766 2460 9500 922 Korea Telecom (KIX)
4323 1973 1081 400 Time Warner Telecom
18566 1875 355 269 Covad Communications
1785 1788 681 122 PaeTec Communications, Inc.
6478 1714 318 43 AT&T Worldnet Services
7545 1537 301 86 TPG Internet Pty Ltd
17974 1535 441 38 PT TELEKOMUNIKASI INDONESIA
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
6478 1714 1671 AT&T Worldnet Services
1785 1788 1666 PaeTec Communications, Inc.
18566 1875 1606 Covad Communications
4323 1973 1573 Time Warner Telecom
4766 2460 1538 Korea Telecom (KIX)
17974 1535 1497 PT TELEKOMUNIKASI INDONESIA
7545 1537 1451 TPG Internet Pty Ltd
10620 1512 1355 TVCABLE BOGOTA
4755 1472 1304 TATA Communications formerly
22773 1338 1250 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
27.0.128.0/17 7514 Media Exchange, Inc.
31.131.64.0/20 43936 Evpanet (PE Zinstein Hariton
31.131.96.0/19 41871 Rtl Pavlograd
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 /12:228
/13:461 /14:797 /15:1395 /16:11912 /17:5838 /18:9763
/19:19335 /20:25708 /21:25920 /22:34104 /23:33086 /24:186667
/25:1081 /26:1275 /27:712 /28:164 /29:8 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2244 3643 bellsouth.net, inc.
18566 1838 1875 Covad Communications
6478 1668 1714 AT&T Worldnet Services
10620 1402 1512 TVCABLE BOGOTA
23456 1247 2568 32-bit ASN transition
11492 1228 1274 Cable One
7011 1061 1160 Citizens Utilities
1785 1050 1788 PaeTec Communications, Inc.
4323 886 1973 Time Warner Telecom
22773 853 1338 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:283 2:50 4:16 5:1 6:3 8:337
12:1980 13:1 14:463 15:15 16:3 17:8
20:10 23:6 24:1649 27:771 31:424 32:60
33:4 34:2 37:1 38:739 40:102 41:2527
42:6 44:3 46:927 47:3 49:198 50:430
52:13 54:2 55:9 56:2 57:29 58:839
59:480 60:387 61:1132 62:1046 63:1935 64:3939
65:2294 66:4151 67:1870 68:1090 69:2991 70:707
71:351 72:1895 73:1 74:2355 75:305 76:341
77:871 78:680 79:461 80:1078 81:835 82:496
83:440 84:676 85:1071 86:592 87:752 88:331
89:1532 90:203 91:3804 92:519 93:1051 94:1284
95:802 96:507 97:250 98:856 99:35 101:61
103:42 106:1 107:7 108:85 109:954 110:599
111:707 112:304 113:401 114:536 115:680 116:957
117:693 118:797 119:1150 120:311 121:672 122:1620
123:975 124:1269 125:1217 128:261 129:173 130:163
131:570 132:108 133:19 134:213 135:48 136:212
137:146 138:300 139:109 140:481 141:239 142:402
143:403 144:486 145:54 146:447 147:212 148:577
149:244 150:172 151:185 152:328 153:179 154:3
155:397 156:195 157:352 158:138 159:380 160:317
161:207 162:281 163:165 164:486 165:355 166:518
167:428 168:728 169:155 170:804 171:77 172:1
173:1558 174:550 175:369 176:130 177:148 178:996
180:859 181:17 182:456 183:212 184:293 185:1
186:1201 187:776 188:851 189:897 190:4842 192:5847
193:4899 194:3496 195:2994 196:1228 197:19 198:3572
199:3916 200:5548 201:1484 202:8271 203:8393 204:4175
205:2313 206:2684 207:2877 208:3971 209:3479 210:2724
211:1397 212:1989 213:1725 214:728 215:72 216:4930
217:1639 218:548 219:364 220:1204 221:491 222:315
223:151
End of report
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