Routing Table Report 04:00 +10GMT Fri 29 Jul, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 365258
Prefixes after maximum aggregation: 165812
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 181237
Total ASes present in the Internet Routing Table: 38298
Prefixes per ASN: 9.54
Origin-only ASes present in the Internet Routing Table: 31818
Origin ASes announcing only one prefix: 15303
Transit ASes present in the Internet Routing Table: 5206
Transit-only ASes present in the Internet Routing Table: 138
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 998
Unregistered ASNs in the Routing Table: 564
Number of 32-bit ASNs allocated by the RIRs: 1600
Number of 32-bit ASNs visible in the Routing Table: 1274
Prefixes from 32-bit ASNs in the Routing Table: 2935
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 117
Number of addresses announced to Internet: 2486830336
Equivalent to 148 /8s, 58 /16s and 5 /24s
Percentage of available address space announced: 67.1
Percentage of allocated address space announced: 67.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.2
Total number of prefixes smaller than registry allocations: 152270
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 91417
Total APNIC prefixes after maximum aggregation: 30415
APNIC Deaggregation factor: 3.01
Prefixes being announced from the APNIC address blocks: 88052
Unique aggregates announced from the APNIC address blocks: 37403
APNIC Region origin ASes present in the Internet Routing Table: 4523
APNIC Prefixes per ASN: 19.47
APNIC Region origin ASes announcing only one prefix: 1253
APNIC Region transit ASes present in the Internet Routing Table: 712
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 64
Number of APNIC addresses announced to Internet: 622363744
Equivalent to 37 /8s, 24 /16s and 132 /24s
Percentage of available APNIC address space announced: 78.9
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, 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: 141898
Total ARIN prefixes after maximum aggregation: 73150
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113691
Unique aggregates announced from the ARIN address blocks: 46783
ARIN Region origin ASes present in the Internet Routing Table: 14525
ARIN Prefixes per ASN: 7.83
ARIN Region origin ASes announcing only one prefix: 5566
ARIN Region transit ASes present in the Internet Routing Table: 1532
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 802955648
Equivalent to 47 /8s, 220 /16s and 33 /24s
Percentage of available ARIN address space announced: 63.8
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: 86786
Total RIPE prefixes after maximum aggregation: 49393
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 80133
Unique aggregates announced from the RIPE address blocks: 53031
RIPE Region origin ASes present in the Internet Routing Table: 15820
RIPE Prefixes per ASN: 5.07
RIPE Region origin ASes announcing only one prefix: 7890
RIPE Region transit ASes present in the Internet Routing Table: 2506
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: 922
Number of RIPE addresses announced to Internet: 484363392
Equivalent to 28 /8s, 222 /16s and 204 /24s
Percentage of available RIPE address space announced: 78.0
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: 33884
Total LACNIC prefixes after maximum aggregation: 7636
LACNIC Deaggregation factor: 4.44
Prefixes being announced from the LACNIC address blocks: 33057
Unique aggregates announced from the LACNIC address blocks: 17266
LACNIC Region origin ASes present in the Internet Routing Table: 1492
LACNIC Prefixes per ASN: 22.16
LACNIC Region origin ASes announcing only one prefix: 441
LACNIC Region transit ASes present in the Internet Routing Table: 277
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: 272
Number of LACNIC addresses announced to Internet: 87038464
Equivalent to 5 /8s, 48 /16s and 26 /24s
Percentage of available LACNIC address space announced: 57.6
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: 8148
Total AfriNIC prefixes after maximum aggregation: 1974
AfriNIC Deaggregation factor: 4.13
Prefixes being announced from the AfriNIC address blocks: 6447
Unique aggregates announced from the AfriNIC address blocks: 2019
AfriNIC Region origin ASes present in the Internet Routing Table: 478
AfriNIC Prefixes per ASN: 13.49
AfriNIC Region origin ASes announcing only one prefix: 153
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: 25809152
Equivalent to 1 /8s, 137 /16s and 209 /24s
Percentage of available AfriNIC address space announced: 38.5
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 2483 11045 947 Korea Telecom (KIX)
17974 1783 508 32 PT TELEKOMUNIKASI INDONESIA
7545 1557 301 86 TPG Internet Pty Ltd
4755 1511 635 172 TATA Communications formerly
7552 1266 1064 7 Vietel Corporation
24560 1193 336 187 Bharti Airtel Ltd., Telemedia
9829 1114 929 42 BSNL National Internet Backbo
9583 1061 78 499 Sify Limited
4808 1051 2093 299 CNCGROUP IP network: China169
17488 966 188 113 Hathway IP Over Cable Interne
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 3617 3818 237 bellsouth.net, inc.
18566 1913 365 241 Covad Communications
1785 1810 681 121 PaeTec Communications, Inc.
4323 1616 1082 401 Time Warner Telecom
7029 1604 993 229 Windstream Communications Inc
20115 1591 1538 623 Charter Communications
19262 1411 4760 391 Verizon Global Networks
22773 1405 2900 90 Cox Communications, Inc.
7018 1362 7068 889 AT&T WorldNet Services
2386 1256 520 905 AT&T Data Communications Serv
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 534 106 185 BILISIM TELEKOM
6830 512 1788 316 UPC Distribution Services
3292 468 2078 403 TDC Tele Danmark
20940 466 133 358 Akamai Technologies European
8866 454 133 26 Bulgarian Telecommunication C
12479 454 593 7 Uni2 Autonomous System
29049 431 31 49 AzerSat LLC.
3320 425 8151 371 Deutsche Telekom AG
8551 404 354 44 Bezeq International
702 397 1802 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 1565 288 167 TVCABLE BOGOTA
8151 1415 2748 353 UniNet S.A. de C.V.
28573 1280 996 67 NET Servicos de Comunicao S.A
7303 1034 545 175 Telecom Argentina Stet-France
6503 744 450 68 AVANTEL, S.A.
14420 701 56 82 CORPORACION NACIONAL DE TELEC
22047 578 322 17 VTR PUNTO NET S.A.
3816 532 232 97 Empresa Nacional de Telecomun
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 509 53 54 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
24863 798 147 36 LINKdotNET AS number
8452 793 445 11 TEDATA
15475 510 74 8 Nile Online
3741 265 937 226 The Internet Solution
6713 260 519 14 Itissalat Al-MAGHRIB
36992 259 415 15 Etisalat MISR
33776 227 13 6 Starcomms Nigeria Limited
24835 177 78 10 RAYA Telecom - Egypt
29571 158 17 11 Ci Telecom Autonomous system
16637 146 409 84 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 3617 3818 237 bellsouth.net, inc.
23456 2935 711 1579 32-bit ASN transition
4766 2483 11045 947 Korea Telecom (KIX)
18566 1913 365 241 Covad Communications
1785 1810 681 121 PaeTec Communications, Inc.
17974 1783 508 32 PT TELEKOMUNIKASI INDONESIA
4323 1616 1082 401 Time Warner Telecom
7029 1604 993 229 Windstream Communications Inc
20115 1591 1538 623 Charter Communications
10620 1565 288 167 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 1783 1751 PT TELEKOMUNIKASI INDONESIA
1785 1810 1689 PaeTec Communications, Inc.
18566 1913 1672 Covad Communications
4766 2483 1536 Korea Telecom (KIX)
7545 1557 1471 TPG Internet Pty Ltd
10620 1565 1398 TVCABLE BOGOTA
7029 1604 1375 Windstream Communications Inc
23456 2935 1356 32-bit ASN transition
4755 1511 1339 TATA Communications formerly
22773 1405 1315 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
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
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 /8:20 /9:12 /10:27 /11:80 /12:232
/13:465 /14:799 /15:1406 /16:12047 /17:5889 /18:9817
/19:19526 /20:26219 /21:26345 /22:35031 /23:33996 /24:190023
/25:1093 /26:1275 /27:739 /28:200 /29:9 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2239 3617 bellsouth.net, inc.
18566 1869 1913 Covad Communications
10620 1460 1565 TVCABLE BOGOTA
23456 1438 2935 32-bit ASN transition
7029 1303 1604 Windstream Communications Inc
11492 1094 1140 Cable One
7011 1056 1158 Citizens Utilities
1785 1053 1810 PaeTec Communications, Inc.
6478 968 996 AT&T Worldnet Services
22773 904 1405 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:340 2:47 4:16 5:1 6:3 8:338
12:1964 13:1 14:494 15:15 16:3 17:5
20:10 23:18 24:1677 27:840 31:511 32:64
33:4 34:2 36:4 38:729 40:104 41:2545
42:36 44:3 46:1051 47:3 49:204 50:376
52:13 54:2 55:5 56:2 57:34 58:864
59:486 60:378 61:1185 62:1047 63:1929 64:3994
65:2300 66:3902 67:1888 68:1112 69:3057 70:778
71:373 72:1872 74:2435 75:328 76:341 77:864
78:705 79:468 80:1120 81:838 82:502 83:465
84:691 85:1065 86:517 87:763 88:334 89:1537
90:224 91:3972 92:528 93:1058 94:1335 95:863
96:421 97:264 98:890 99:37 101:82 103:157
106:14 107:26 108:73 109:1027 110:613 111:716
112:304 113:407 114:556 115:683 116:989 117:680
118:858 119:1182 120:313 121:676 122:1608 123:976
124:1311 125:1329 128:246 129:169 130:170 131:579
132:113 133:21 134:214 135:52 136:215 137:138
138:300 139:115 140:477 141:255 142:403 143:423
144:481 145:56 146:454 147:219 148:673 149:250
150:165 151:189 152:342 153:182 154:5 155:400
156:199 157:355 158:140 159:450 160:315 161:205
162:310 163:166 164:507 165:369 166:531 167:433
168:746 169:153 170:838 171:81 172:1 173:1615
174:610 175:388 176:145 177:181 178:995 180:913
181:25 182:511 183:231 184:343 185:1 186:1312
187:759 188:893 189:958 190:5040 192:5912 193:4973
194:3510 195:3056 196:1203 197:45 198:3585 199:3991
200:5573 201:1468 202:8410 203:8454 204:4232 205:2317
206:2665 207:2800 208:4000 209:3437 210:2680 211:1454
212:2088 213:1768 214:791 215:69 216:4903 217:1631
218:548 219:348 220:1232 221:494 222:360 223:227
End of report
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