Routing Table Report 04:00 +10GMT Fri 19 Aug, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 367923
Prefixes after maximum aggregation: 166565
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 182530
Total ASes present in the Internet Routing Table: 38523
Prefixes per ASN: 9.55
Origin-only ASes present in the Internet Routing Table: 31983
Origin ASes announcing only one prefix: 15373
Transit ASes present in the Internet Routing Table: 5218
Transit-only ASes present in the Internet Routing Table: 143
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 1112
Unregistered ASNs in the Routing Table: 630
Number of 32-bit ASNs allocated by the RIRs: 1653
Number of 32-bit ASNs visible in the Routing Table: 1322
Prefixes from 32-bit ASNs in the Routing Table: 3068
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 110
Number of addresses announced to Internet: 2468526016
Equivalent to 147 /8s, 34 /16s and 183 /24s
Percentage of available address space announced: 66.6
Percentage of allocated address space announced: 66.6
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: 153495
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92483
Total APNIC prefixes after maximum aggregation: 30480
APNIC Deaggregation factor: 3.03
Prefixes being announced from the APNIC address blocks: 88996
Unique aggregates announced from the APNIC address blocks: 37753
APNIC Region origin ASes present in the Internet Routing Table: 4540
APNIC Prefixes per ASN: 19.60
APNIC Region origin ASes announcing only one prefix: 1248
APNIC Region transit ASes present in the Internet Routing Table: 713
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 72
Number of APNIC addresses announced to Internet: 623928352
Equivalent to 37 /8s, 48 /16s and 100 /24s
Percentage of available APNIC address space announced: 79.1
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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: 142295
Total ARIN prefixes after maximum aggregation: 73288
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 114172
Unique aggregates announced from the ARIN address blocks: 47110
ARIN Region origin ASes present in the Internet Routing Table: 14582
ARIN Prefixes per ASN: 7.83
ARIN Region origin ASes announcing only one prefix: 5609
ARIN Region transit ASes present in the Internet Routing Table: 1545
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: 803565056
Equivalent to 47 /8s, 229 /16s and 110 /24s
Percentage of available ARIN address space announced: 63.9
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, 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: 87529
Total RIPE prefixes after maximum aggregation: 49739
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 80702
Unique aggregates announced from the RIPE address blocks: 53443
RIPE Region origin ASes present in the Internet Routing Table: 15904
RIPE Prefixes per ASN: 5.07
RIPE Region origin ASes announcing only one prefix: 7920
RIPE Region transit ASes present in the Internet Routing Table: 2503
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: 949
Number of RIPE addresses announced to Internet: 487590656
Equivalent to 29 /8s, 16 /16s and 11 /24s
Percentage of available RIPE address space announced: 78.5
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: 34058
Total LACNIC prefixes after maximum aggregation: 7640
LACNIC Deaggregation factor: 4.46
Prefixes being announced from the LACNIC address blocks: 33300
Unique aggregates announced from the LACNIC address blocks: 17315
LACNIC Region origin ASes present in the Internet Routing Table: 1501
LACNIC Prefixes per ASN: 22.19
LACNIC Region origin ASes announcing only one prefix: 444
LACNIC Region transit ASes present in the Internet Routing Table: 278
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: 285
Number of LACNIC addresses announced to Internet: 87588096
Equivalent to 5 /8s, 56 /16s and 125 /24s
Percentage of available LACNIC address space announced: 58.0
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: 8318
Total AfriNIC prefixes after maximum aggregation: 2040
AfriNIC Deaggregation factor: 4.08
Prefixes being announced from the AfriNIC address blocks: 6456
Unique aggregates announced from the AfriNIC address blocks: 2085
AfriNIC Region origin ASes present in the Internet Routing Table: 483
AfriNIC Prefixes per ASN: 13.37
AfriNIC Region origin ASes announcing only one prefix: 152
AfriNIC Region transit ASes present in the Internet Routing Table: 107
Average AfriNIC Region AS path length visible: 5.7
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 26898176
Equivalent to 1 /8s, 154 /16s and 111 /24s
Percentage of available AfriNIC address space announced: 40.1
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 2500 11046 951 Korea Telecom (KIX)
17974 1903 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1575 301 83 TPG Internet Pty Ltd
4755 1533 635 169 TATA Communications formerly
7552 1412 1064 7 Vietel Corporation
24560 1198 336 187 Bharti Airtel Ltd., Telemedia
9829 1156 989 28 BSNL National Internet Backbo
4808 1103 2145 308 CNCGROUP IP network: China169
9583 1071 78 493 Sify Limited
17488 1002 188 139 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 3585 3817 227 bellsouth.net, inc.
18566 1912 364 240 Covad Communications
1785 1818 680 123 PaeTec Communications, Inc.
4323 1618 1086 401 Time Warner Telecom
20115 1585 1537 629 Charter Communications
7029 1574 991 229 Windstream Communications Inc
22773 1433 2903 97 Cox Communications, Inc.
19262 1405 4778 395 Verizon Global Networks
7018 1352 7051 884 AT&T WorldNet Services
2386 1247 517 898 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 540 107 183 BILISIM TELEKOM
6830 512 1788 317 UPC Distribution Services
20940 475 135 368 Akamai Technologies European
3292 469 2080 404 TDC Tele Danmark
8866 458 133 26 Bulgarian Telecommunication C
12479 456 593 7 Uni2 Autonomous System
3320 425 8151 371 Deutsche Telekom AG
29049 423 31 57 AzerSat LLC.
8551 403 354 44 Bezeq International
3301 398 1855 347 TeliaNet Sweden
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 1590 294 162 TVCABLE BOGOTA
8151 1399 2768 354 UniNet S.A. de C.V.
28573 1266 996 67 NET Servicos de Comunicao S.A
7303 1065 578 176 Telecom Argentina Stet-France
6503 741 450 75 AVANTEL, S.A.
14420 705 56 85 CORPORACION NACIONAL DE TELEC
22047 578 322 17 VTR PUNTO NET S.A.
3816 532 232 96 Empresa Nacional de Telecomun
27947 518 53 54 Telconet S.A
7738 515 986 31 Telecomunicacoes da Bahia 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 810 145 59 LINKdotNET AS number
8452 642 445 11 TEDATA
15475 512 74 8 Nile Online
36992 302 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 244 519 14 Itissalat Al-MAGHRIB
33776 226 13 8 Starcomms Nigeria Limited
15706 219 32 6 Sudatel Internet Exchange Aut
12258 194 28 61 Vodacom Internet Company
24835 179 78 10 RAYA Telecom - Egypt
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 3585 3817 227 bellsouth.net, inc.
23456 3068 731 1646 32-bit ASN transition
4766 2500 11046 951 Korea Telecom (KIX)
18566 1912 364 240 Covad Communications
17974 1903 516 31 PT TELEKOMUNIKASI INDONESIA
1785 1818 680 123 PaeTec Communications, Inc.
4323 1618 1086 401 Time Warner Telecom
10620 1590 294 162 TVCABLE BOGOTA
20115 1585 1537 629 Charter Communications
7545 1575 301 83 TPG Internet Pty Ltd
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 1903 1872 PT TELEKOMUNIKASI INDONESIA
1785 1818 1695 PaeTec Communications, Inc.
18566 1912 1672 Covad Communications
4766 2500 1549 Korea Telecom (KIX)
7545 1575 1492 TPG Internet Pty Ltd
10620 1590 1428 TVCABLE BOGOTA
23456 3068 1422 32-bit ASN transition
7552 1412 1405 Vietel Corporation
4755 1533 1364 TATA Communications formerly
7029 1574 1345 Windstream 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 /8:19 /9:12 /10:27 /11:81 /12:233
/13:459 /14:797 /15:1416 /16:11936 /17:5923 /18:9957
/19:19535 /20:26556 /21:26583 /22:35538 /23:34277 /24:191269
/25:1096 /26:1304 /27:739 /28:157 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2217 3585 bellsouth.net, inc.
18566 1868 1912 Covad Communications
23456 1503 3068 32-bit ASN transition
10620 1485 1590 TVCABLE BOGOTA
7029 1275 1574 Windstream Communications Inc
11492 1102 1148 Cable One
7011 1057 1160 Citizens Utilities
1785 1052 1818 PaeTec Communications, Inc.
22773 929 1433 Cox Communications, Inc.
30036 910 933 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:359 2:46 4:15 5:1 6:3 8:342
12:1958 13:1 14:517 15:15 16:3 17:5
20:10 23:23 24:1685 27:872 31:517 32:64
33:4 34:2 36:4 38:732 40:107 41:2486
42:45 44:3 46:1062 47:3 49:219 50:407
52:13 54:2 55:10 56:2 57:35 58:861
59:499 60:376 61:1180 62:1080 63:1929 64:3968
65:2300 66:3931 67:1918 68:1110 69:3083 70:779
71:373 72:1846 74:2434 75:329 76:339 77:861
78:705 79:479 80:1130 81:831 82:494 83:476
84:685 85:1083 86:498 87:839 88:335 89:1536
90:224 91:4044 92:523 93:1136 94:1337 95:872
96:419 97:267 98:923 99:37 101:78 103:205
106:69 107:32 108:74 109:1011 110:637 111:731
112:306 113:410 114:557 115:692 116:998 117:685
118:876 119:1190 120:314 121:689 122:1606 123:985
124:1313 125:1341 128:246 129:176 130:171 131:579
132:116 133:21 134:213 135:51 136:216 137:138
138:296 139:116 140:488 141:277 142:382 143:442
144:486 145:58 146:462 147:216 148:646 149:254
150:201 151:190 152:441 153:184 154:5 155:401
156:200 157:331 158:133 159:458 160:319 161:208
162:328 163:188 164:516 165:367 166:533 167:433
168:747 169:153 170:845 171:81 172:1 173:1648
174:614 175:392 176:153 177:222 178:958 180:926
181:26 182:528 183:242 184:364 185:1 186:1362
187:740 188:931 189:931 190:5134 192:5925 193:4982
194:3512 195:3036 196:1198 197:126 198:3590 199:4032
200:5511 201:1492 202:8427 203:8480 204:4248 205:2325
206:2674 207:2798 208:4000 209:3409 210:2704 211:1460
212:2084 213:1765 214:784 215:70 216:4862 217:1607
218:554 219:354 220:1220 221:515 222:358 223:242
End of report
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