Routing Table Report 04:00 +10GMT Mon 01 Nov, 2010
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 334824
Prefixes after maximum aggregation: 153036
Deaggregation factor: 2.19
Unique aggregates announced to Internet: 164911
Total ASes present in the Internet Routing Table: 35120
Prefixes per ASN: 9.53
Origin-only ASes present in the Internet Routing Table: 30288
Origin ASes announcing only one prefix: 14789
Transit ASes present in the Internet Routing Table: 4832
Transit-only ASes present in the Internet Routing Table: 118
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 37
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 298
Unregistered ASNs in the Routing Table: 125
Number of 32-bit ASNs allocated by the RIRs: 862
Prefixes from 32-bit ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 188
Number of addresses announced to Internet: 2326518944
Equivalent to 138 /8s, 171 /16s and 220 /24s
Percentage of available address space announced: 62.8
Percentage of allocated address space announced: 66.4
Percentage of available address space allocated: 94.6
Percentage of address space in use by end-sites: 85.7
Total number of prefixes smaller than registry allocations: 137458
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 82143
Total APNIC prefixes after maximum aggregation: 28012
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 79032
Unique aggregates announced from the APNIC address blocks: 34580
APNIC Region origin ASes present in the Internet Routing Table: 4219
APNIC Prefixes per ASN: 18.73
APNIC Region origin ASes announcing only one prefix: 1175
APNIC Region transit ASes present in the Internet Routing Table: 676
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 560623648
Equivalent to 33 /8s, 106 /16s and 112 /24s
Percentage of available APNIC address space announced: 75.9
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, 42/8, 43/8, 49/8,
58/8, 59/8, 60/8, 61/8, 101/8, 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: 137368
Total ARIN prefixes after maximum aggregation: 71133
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 108791
Unique aggregates announced from the ARIN address blocks: 43648
ARIN Region origin ASes present in the Internet Routing Table: 13999
ARIN Prefixes per ASN: 7.77
ARIN Region origin ASes announcing only one prefix: 5369
ARIN Region transit ASes present in the Internet Routing Table: 1480
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 738425856
Equivalent to 44 /8s, 3 /16s and 124 /24s
Percentage of available ARIN address space announced: 62.9
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, 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, 54/8,
55/8, 56/8, 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, 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: 77249
Total RIPE prefixes after maximum aggregation: 44684
RIPE Deaggregation factor: 1.73
Prefixes being announced from the RIPE address blocks: 70741
Unique aggregates announced from the RIPE address blocks: 46447
RIPE Region origin ASes present in the Internet Routing Table: 14930
RIPE Prefixes per ASN: 4.74
RIPE Region origin ASes announcing only one prefix: 7688
RIPE Region transit ASes present in the Internet Routing Table: 2301
Average RIPE Region AS path length visible: 4.4
Max RIPE Region AS path length visible: 37
Number of RIPE addresses announced to Internet: 443056896
Equivalent to 26 /8s, 104 /16s and 131 /24s
Percentage of available RIPE address space announced: 77.7
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, 196608-197631
RIPE Address Blocks 2/8, 25/8, 31/8, 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,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 30255
Total LACNIC prefixes after maximum aggregation: 7218
LACNIC Deaggregation factor: 4.19
Prefixes being announced from the LACNIC address blocks: 28948
Unique aggregates announced from the LACNIC address blocks: 15361
LACNIC Region origin ASes present in the Internet Routing Table: 1378
LACNIC Prefixes per ASN: 21.01
LACNIC Region origin ASes announcing only one prefix: 430
LACNIC Region transit ASes present in the Internet Routing Table: 241
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 76783104
Equivalent to 4 /8s, 147 /16s and 158 /24s
Percentage of available LACNIC address space announced: 57.2
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 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: 7581
Total AfriNIC prefixes after maximum aggregation: 1870
AfriNIC Deaggregation factor: 4.05
Prefixes being announced from the AfriNIC address blocks: 5896
Unique aggregates announced from the AfriNIC address blocks: 1710
AfriNIC Region origin ASes present in the Internet Routing Table: 412
AfriNIC Prefixes per ASN: 14.31
AfriNIC Region origin ASes announcing only one prefix: 127
AfriNIC Region transit ASes present in the Internet Routing Table: 89
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 21
Number of AfriNIC addresses announced to Internet: 21453568
Equivalent to 1 /8s, 71 /16s and 91 /24s
Percentage of available AfriNIC address space announced: 63.9
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1867 9453 512 Korea Telecom (KIX)
7545 1422 299 76 TPG Internet Pty Ltd
4755 1380 379 158 TATA Communications formerly
17488 1364 156 121 Hathway IP Over Cable Interne
17974 1256 302 85 PT TELEKOMUNIKASI INDONESIA
24560 1054 309 173 Bharti Airtel Ltd., Telemedia
9583 1032 76 491 Sify Limited
4808 976 1720 265 CNCGROUP IP network: China169
18101 894 116 133 Reliance Infocom Ltd Internet
9829 823 694 27 BSNL National Internet Backbo
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 3761 3666 279 bellsouth.net, inc.
4323 2617 1105 395 Time Warner Telecom
1785 1792 698 130 PaeTec Communications, Inc.
19262 1776 4833 278 Verizon Global Networks
20115 1507 1528 644 Charter Communications
7018 1416 5674 905 AT&T WorldNet Services
6478 1398 280 76 AT&T Worldnet Services
2386 1308 556 927 AT&T Data Communications Serv
11492 1237 231 74 Cable One
22773 1227 2859 62 Cox 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
3292 447 2028 391 TDC Tele Danmark
8866 426 133 25 Bulgarian Telecommunication C
8551 402 353 46 Bezeq International
702 397 1866 311 UUNET - Commercial IP service
34984 381 91 188 BILISIM TELEKOM
3301 378 1696 335 TeliaNet Sweden
3320 377 7332 330 Deutsche Telekom AG
30890 375 80 206 Evolva Telecom
12479 366 576 5 Uni2 Autonomous System
31148 360 19 82 FreeNet ISP
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 1330 248 155 TVCABLE BOGOTA
8151 1325 2597 368 UniNet S.A. de C.V.
28573 1206 928 84 NET Servicos de Comunicao S.A
7303 830 441 107 Telecom Argentina Stet-France
6503 794 225 258 AVANTEL, S.A.
22047 564 310 15 VTR PUNTO NET S.A.
14420 559 44 80 CORPORACION NACIONAL DE TELEC
3816 485 210 96 Empresa Nacional de Telecomun
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 448 32 27 Telefonica del Sur 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 1110 445 10 TEDATA
24863 744 147 39 LINKdotNET AS number
36992 644 278 160 Etisalat MISR
3741 268 907 225 The Internet Solution
24835 210 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
29571 203 19 11 Ci Telecom Autonomous system
2018 197 277 64 Tertiary Education Network
33776 196 12 14 Starcomms Nigeria Limited
16637 152 440 89 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 3761 3666 279 bellsouth.net, inc.
4323 2617 1105 395 Time Warner Telecom
4766 1867 9453 512 Korea Telecom (KIX)
1785 1792 698 130 PaeTec Communications, Inc.
19262 1776 4833 278 Verizon Global Networks
20115 1507 1528 644 Charter Communications
7545 1422 299 76 TPG Internet Pty Ltd
7018 1416 5674 905 AT&T WorldNet Services
6478 1398 280 76 AT&T Worldnet Services
4755 1380 379 158 TATA Communications formerly
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2617 2222 Time Warner Telecom
1785 1792 1662 PaeTec Communications, Inc.
19262 1776 1498 Verizon Global Networks
4766 1867 1355 Korea Telecom (KIX)
7545 1422 1346 TPG Internet Pty Ltd
6478 1398 1322 AT&T Worldnet Services
17488 1364 1243 Hathway IP Over Cable Interne
4755 1380 1222 TATA Communications formerly
10620 1330 1175 TVCABLE BOGOTA
17974 1256 1171 PT TELEKOMUNIKASI INDONESIA
Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
16927 UNALLOCATED 12.0.252.0/23 7018 AT&T WorldNet Servic
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
26973 UNALLOCATED 12.39.152.0/24 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
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
31.0.0.0/16 12654 RIPE NCC RIS Project
31.1.0.0/21 12654 RIPE NCC RIS Project
31.1.24.0/24 12654 RIPE NCC RIS Project
36.0.0.0/8 38639 NTT Communications Corporatio
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
42.0.0.0/8 38639 NTT Communications Corporatio
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
64.21.192.0/20 11610 Internet Nebraska Corporation
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 /8:21 /9:10 /10:25 /11:68 /12:206
/13:420 /14:744 /15:1345 /16:11367 /17:5531 /18:9376
/19:18598 /20:23855 /21:23868 /22:31501 /23:30656 /24:174406
/25:976 /26:1100 /27:581 /28:149 /29:12 /30:2
/31:0 /32:7
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2326 3761 bellsouth.net, inc.
4323 1404 2617 Time Warner Telecom
6478 1360 1398 AT&T Worldnet Services
10620 1222 1330 TVCABLE BOGOTA
11492 1194 1237 Cable One
1785 1074 1792 PaeTec Communications, Inc.
18566 1069 1088 Covad Communications
7011 1059 1160 Citizens Utilities
8452 1008 1110 TEDATA
19262 902 1776 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:91 2:14 4:13 8:312 12:1991 13:8
14:54 15:18 16:3 17:8 20:9 24:1405
27:424 31:1 32:61 33:11 38:697 40:101
41:2624 44:3 46:199 47:10 49:4 50:3
52:12 55:6 56:2 57:29 58:833 59:501
60:479 61:1123 62:1005 63:1966 64:3747 65:2344
66:4072 67:1806 68:1123 69:2864 70:756 71:376
72:1895 73:2 74:2323 75:295 76:326 77:855
78:680 79:444 80:1061 81:795 82:512 83:455
84:680 85:1023 86:474 87:695 88:329 89:1573
90:109 91:3140 92:442 93:983 94:1120 95:706
96:391 97:222 98:632 99:32 101:3 108:64
109:724 110:419 111:620 112:307 113:307 114:478
115:614 116:1138 117:660 118:555 119:989 120:165
121:716 122:1606 123:950 124:1223 125:1269 128:229
129:152 130:168 131:553 132:274 133:20 134:207
135:45 136:210 137:142 138:279 139:110 140:485
141:198 142:347 143:360 144:495 145:55 146:433
147:175 148:619 149:302 150:146 151:231 152:293
153:175 154:3 155:362 156:162 157:338 158:112
159:361 160:312 161:199 162:274 163:164 164:426
165:349 166:471 167:426 168:681 169:155 170:719
171:62 172:2 173:1077 174:469 175:240 176:1
178:558 180:626 182:242 183:240 184:160 186:751
187:563 188:855 189:803 190:4187 192:5766 193:4754
194:3445 195:2838 196:1196 198:3513 199:3625 200:5408
201:1585 202:8194 203:8296 204:4009 205:2320 206:2567
207:3011 208:3882 209:3452 210:2557 211:1278 212:1809
213:1729 214:683 215:66 216:4747 217:1573 218:529
219:401 220:1185 221:427 222:343 223:56
End of report