Routing Table Report 04:00 +10GMT Wed 27 Oct, 2010
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 334539
Prefixes after maximum aggregation: 152830
Deaggregation factor: 2.19
Unique aggregates announced to Internet: 164592
Total ASes present in the Internet Routing Table: 35114
Prefixes per ASN: 9.53
Origin-only ASes present in the Internet Routing Table: 30285
Origin ASes announcing only one prefix: 14793
Transit ASes present in the Internet Routing Table: 4829
Transit-only ASes present in the Internet Routing Table: 120
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 31
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 298
Unregistered ASNs in the Routing Table: 121
Number of 32-bit ASNs allocated by the RIRs: 840
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: 201
Number of addresses announced to Internet: 2325405600
Equivalent to 138 /8s, 154 /16s and 223 /24s
Percentage of available address space announced: 62.7
Percentage of allocated address space announced: 66.3
Percentage of available address space allocated: 94.6
Percentage of address space in use by end-sites: 85.6
Total number of prefixes smaller than registry allocations: 137402
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 82096
Total APNIC prefixes after maximum aggregation: 27994
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 78994
Unique aggregates announced from the APNIC address blocks: 34605
APNIC Region origin ASes present in the Internet Routing Table: 4221
APNIC Prefixes per ASN: 18.71
APNIC Region origin ASes announcing only one prefix: 1178
APNIC Region transit ASes present in the Internet Routing Table: 675
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 560495648
Equivalent to 33 /8s, 104 /16s and 124 /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: 137372
Total ARIN prefixes after maximum aggregation: 71022
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 108789
Unique aggregates announced from the ARIN address blocks: 43525
ARIN Region origin ASes present in the Internet Routing Table: 13995
ARIN Prefixes per ASN: 7.77
ARIN Region origin ASes announcing only one prefix: 5372
ARIN Region transit ASes present in the Internet Routing Table: 1477
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 738151424
Equivalent to 43 /8s, 255 /16s and 76 /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: 77088
Total RIPE prefixes after maximum aggregation: 44642
RIPE Deaggregation factor: 1.73
Prefixes being announced from the RIPE address blocks: 70521
Unique aggregates announced from the RIPE address blocks: 46236
RIPE Region origin ASes present in the Internet Routing Table: 14932
RIPE Prefixes per ASN: 4.72
RIPE Region origin ASes announcing only one prefix: 7692
RIPE Region transit ASes present in the Internet Routing Table: 2304
Average RIPE Region AS path length visible: 4.4
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 442744192
Equivalent to 26 /8s, 99 /16s and 189 /24s
Percentage of available RIPE address space announced: 77.6
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: 30205
Total LACNIC prefixes after maximum aggregation: 7183
LACNIC Deaggregation factor: 4.21
Prefixes being announced from the LACNIC address blocks: 28889
Unique aggregates announced from the LACNIC address blocks: 15333
LACNIC Region origin ASes present in the Internet Routing Table: 1371
LACNIC Prefixes per ASN: 21.07
LACNIC Region origin ASes announcing only one prefix: 427
LACNIC Region transit ASes present in the Internet Routing Table: 240
Average LACNIC Region AS path length visible: 4.3
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 76644736
Equivalent to 4 /8s, 145 /16s and 129 /24s
Percentage of available LACNIC address space announced: 57.1
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: 7549
Total AfriNIC prefixes after maximum aggregation: 1869
AfriNIC Deaggregation factor: 4.04
Prefixes being announced from the AfriNIC address blocks: 5856
Unique aggregates announced from the AfriNIC address blocks: 1710
AfriNIC Region origin ASes present in the Internet Routing Table: 410
AfriNIC Prefixes per ASN: 14.28
AfriNIC Region origin ASes announcing only one prefix: 124
AfriNIC Region transit ASes present in the Internet Routing Table: 89
Average AfriNIC Region AS path length visible: 5.2
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 20916224
Equivalent to 1 /8s, 63 /16s and 40 /24s
Percentage of available AfriNIC address space announced: 62.3
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 1874 9453 512 Korea Telecom (KIX)
7545 1415 299 77 TPG Internet Pty Ltd
4755 1375 383 159 TATA Communications formerly
17488 1364 156 121 Hathway IP Over Cable Interne
17974 1270 303 78 PT TELEKOMUNIKASI INDONESIA
24560 1053 309 173 Bharti Airtel Ltd., Telemedia
9583 1031 76 493 Sify Limited
4808 976 1721 265 CNCGROUP IP network: China169
18101 894 116 134 Reliance Infocom Ltd Internet
9829 827 694 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 3762 3666 279 bellsouth.net, inc.
4323 2618 1103 393 Time Warner Telecom
1785 1795 698 130 PaeTec Communications, Inc.
19262 1777 4833 279 Verizon Global Networks
20115 1506 1528 647 Charter Communications
7018 1435 5692 918 AT&T WorldNet Services
6478 1390 279 92 AT&T Worldnet Services
2386 1317 556 932 AT&T Data Communications Serv
11492 1237 231 74 Cable One
22773 1215 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 444 2027 389 TDC Tele Danmark
8866 420 133 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 379 1688 335 TeliaNet Sweden
3320 377 7332 330 Deutsche Telekom AG
12479 365 576 5 Uni2 Autonomous System
31148 358 19 81 FreeNet ISP
30890 349 74 187 Evolva Telecom
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 1326 2597 363 UniNet S.A. de C.V.
28573 1217 920 84 NET Servicos de Comunicao S.A
7303 832 441 108 Telecom Argentina Stet-France
6503 790 223 258 AVANTEL, S.A.
22047 563 310 15 VTR PUNTO NET S.A.
14420 545 39 76 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 1083 445 10 TEDATA
24863 743 147 39 LINKdotNET AS number
36992 644 278 160 Etisalat MISR
3741 267 891 225 The Internet Solution
24835 208 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 154 440 91 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 3762 3666 279 bellsouth.net, inc.
4323 2618 1103 393 Time Warner Telecom
4766 1874 9453 512 Korea Telecom (KIX)
1785 1795 698 130 PaeTec Communications, Inc.
19262 1777 4833 279 Verizon Global Networks
20115 1506 1528 647 Charter Communications
7018 1435 5692 918 AT&T WorldNet Services
7545 1415 299 77 TPG Internet Pty Ltd
6478 1390 279 92 AT&T Worldnet Services
4755 1375 383 159 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 2618 2225 Time Warner Telecom
1785 1795 1665 PaeTec Communications, Inc.
19262 1777 1498 Verizon Global Networks
4766 1874 1362 Korea Telecom (KIX)
7545 1415 1338 TPG Internet Pty Ltd
6478 1390 1298 AT&T Worldnet Services
17488 1364 1243 Hathway IP Over Cable Interne
4755 1375 1216 TATA Communications formerly
17974 1270 1192 PT TELEKOMUNIKASI INDONESIA
10620 1330 1175 TVCABLE BOGOTA
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
36.0.0.0/8 237 Merit Network
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
42.0.0.0/8 237 Merit Network
46.133.0.0/16 21497 UMC Autonomous System
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 /8:21 /9:10 /10:25 /11:68 /12:207
/13:420 /14:745 /15:1346 /16:11371 /17:5518 /18:9362
/19:18578 /20:23815 /21:23844 /22:31443 /23:30587 /24:174295
/25:999 /26:1125 /27:585 /28:154 /29:12 /30:2
/31:0 /32:7
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2327 3762 bellsouth.net, inc.
4323 1406 2618 Time Warner Telecom
6478 1352 1390 AT&T Worldnet Services
10620 1222 1330 TVCABLE BOGOTA
11492 1194 1237 Cable One
1785 1078 1795 PaeTec Communications, Inc.
18566 1069 1088 Covad Communications
7011 1058 1159 Citizens Utilities
8452 988 1083 TEDATA
19262 903 1777 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 2:11 4:13 8:313 12:1997 13:8
14:44 15:18 16:3 17:9 20:9 24:1395
27:382 31:1 32:61 33:11 38:697 40:97
41:2593 44:3 46:182 47:10 49:4 50:1
52:12 55:5 56:2 57:29 58:837 59:498
60:480 61:1118 62:1005 63:1963 64:3750 65:2345
66:4066 67:1818 68:1138 69:2852 70:756 71:376
72:1905 73:2 74:2335 75:295 76:326 77:883
78:680 79:445 80:1065 81:802 82:504 83:454
84:688 85:1024 86:474 87:694 88:326 89:1575
90:109 91:3130 92:435 93:997 94:1117 95:692
96:395 97:222 98:630 99:32 101:3 108:64
109:715 110:438 111:619 112:304 113:306 114:481
115:608 116:1138 117:657 118:558 119:982 120:164
121:721 122:1609 123:949 124:1226 125:1272 128:228
129:152 130:167 131:566 132:275 133:20 134:207
135:46 136:211 137:139 138:280 139:109 140:486
141:198 142:348 143:363 144:497 145:55 146:431
147:177 148:620 149:308 150:146 151:231 152:293
153:175 154:3 155:370 156:166 157:338 158:112
159:361 160:312 161:199 162:274 163:166 164:424
165:349 166:470 167:425 168:681 169:154 170:718
171:61 172:2 173:1050 174:483 175:242 176:1
177:1 178:549 180:651 181:1 182:249 183:239
184:140 186:738 187:551 188:853 189:809 190:4163
192:5762 193:4748 194:3434 195:2823 196:1188 198:3541
199:3631 200:5389 201:1585 202:8168 203:8268 204:4012
205:2325 206:2568 207:3023 208:3904 209:3468 210:2561
211:1283 212:1796 213:1720 214:686 215:66 216:4764
217:1559 218:528 219:401 220:1182 221:429 222:339
223:58
End of report