Routing Table Report 04:00 +10GMT Wed 24 Aug, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 368224
Prefixes after maximum aggregation: 166785
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 182607
Total ASes present in the Internet Routing Table: 38579
Prefixes per ASN: 9.54
Origin-only ASes present in the Internet Routing Table: 32012
Origin ASes announcing only one prefix: 15385
Transit ASes present in the Internet Routing Table: 5222
Transit-only ASes present in the Internet Routing Table: 146
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: 1119
Unregistered ASNs in the Routing Table: 641
Number of 32-bit ASNs allocated by the RIRs: 1669
Number of 32-bit ASNs visible in the Routing Table: 1345
Prefixes from 32-bit ASNs in the Routing Table: 3107
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 124
Number of addresses announced to Internet: 2469937344
Equivalent to 147 /8s, 56 /16s and 64 /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: 153354
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92608
Total APNIC prefixes after maximum aggregation: 30488
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 89138
Unique aggregates announced from the APNIC address blocks: 37744
APNIC Region origin ASes present in the Internet Routing Table: 4546
APNIC Prefixes per ASN: 19.61
APNIC Region origin ASes announcing only one prefix: 1251
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: 74
Number of APNIC addresses announced to Internet: 624497440
Equivalent to 37 /8s, 57 /16s and 19 /24s
Percentage of available APNIC address space announced: 79.2
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: 142513
Total ARIN prefixes after maximum aggregation: 73370
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 114414
Unique aggregates announced from the ARIN address blocks: 47134
ARIN Region origin ASes present in the Internet Routing Table: 14607
ARIN Prefixes per ASN: 7.83
ARIN Region origin ASes announcing only one prefix: 5617
ARIN Region transit ASes present in the Internet Routing Table: 1548
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: 803885568
Equivalent to 47 /8s, 234 /16s and 82 /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: 87555
Total RIPE prefixes after maximum aggregation: 49778
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 80739
Unique aggregates announced from the RIPE address blocks: 53501
RIPE Region origin ASes present in the Internet Routing Table: 15898
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7918
RIPE Region transit ASes present in the Internet Routing Table: 2504
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: 963
Number of RIPE addresses announced to Internet: 487900416
Equivalent to 29 /8s, 20 /16s and 197 /24s
Percentage of available RIPE address space announced: 78.6
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, 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: 33949
Total LACNIC prefixes after maximum aggregation: 7690
LACNIC Deaggregation factor: 4.41
Prefixes being announced from the LACNIC address blocks: 33194
Unique aggregates announced from the LACNIC address blocks: 17298
LACNIC Region origin ASes present in the Internet Routing Table: 1505
LACNIC Prefixes per ASN: 22.06
LACNIC Region origin ASes announcing only one prefix: 446
LACNIC Region transit ASes present in the Internet Routing Table: 279
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 292
Number of LACNIC addresses announced to Internet: 87709952
Equivalent to 5 /8s, 58 /16s and 89 /24s
Percentage of available LACNIC address space announced: 58.1
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: 8320
Total AfriNIC prefixes after maximum aggregation: 2037
AfriNIC Deaggregation factor: 4.08
Prefixes being announced from the AfriNIC address blocks: 6427
Unique aggregates announced from the AfriNIC address blocks: 2078
AfriNIC Region origin ASes present in the Internet Routing Table: 484
AfriNIC Prefixes per ASN: 13.28
AfriNIC Region origin ASes announcing only one prefix: 153
AfriNIC Region transit ASes present in the Internet Routing Table: 104
Average AfriNIC Region AS path length visible: 4.8
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: 26903040
Equivalent to 1 /8s, 154 /16s and 130 /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 2478 11046 952 Korea Telecom (KIX)
17974 1917 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1578 301 85 TPG Internet Pty Ltd
4755 1536 635 168 TATA Communications formerly
7552 1412 1064 7 Vietel Corporation
24560 1198 336 189 Bharti Airtel Ltd., Telemedia
9829 1153 989 28 BSNL National Internet Backbo
9583 1075 79 497 Sify Limited
4808 1069 2098 307 CNCGROUP IP network: China169
17488 1014 190 143 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 3584 3817 227 bellsouth.net, inc.
18566 1912 364 240 Covad Communications
1785 1819 680 123 PaeTec Communications, Inc.
4323 1614 1085 396 Time Warner Telecom
20115 1587 1538 631 Charter Communications
7029 1580 995 230 Windstream Communications Inc
22773 1441 2903 97 Cox Communications, Inc.
19262 1405 4778 395 Verizon Global Networks
7018 1353 7051 884 AT&T WorldNet Services
2386 1229 516 890 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 541 107 183 BILISIM TELEKOM
6830 513 1788 318 UPC Distribution Services
20940 478 138 371 Akamai Technologies European
3292 469 2080 404 TDC Tele Danmark
12479 458 593 7 Uni2 Autonomous System
8866 457 133 26 Bulgarian Telecommunication C
3320 425 8151 371 Deutsche Telekom AG
29049 424 31 55 AzerSat LLC.
8551 403 354 44 Bezeq International
3301 399 1855 348 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 1592 294 163 TVCABLE BOGOTA
8151 1401 2770 354 UniNet S.A. de C.V.
28573 1269 996 67 NET Servicos de Comunicao S.A
7303 1064 578 175 Telecom Argentina Stet-France
14420 707 56 86 CORPORACION NACIONAL DE TELEC
6503 601 450 75 AVANTEL, S.A.
22047 578 322 17 VTR PUNTO NET S.A.
27947 557 55 82 Telconet S.A
3816 532 232 96 Empresa Nacional de Telecomun
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 809 145 59 LINKdotNET AS number
8452 640 445 11 TEDATA
15475 512 74 8 Nile Online
36992 301 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 244 519 14 Itissalat Al-MAGHRIB
33776 230 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 3584 3817 227 bellsouth.net, inc.
23456 3107 740 1668 32-bit ASN transition
4766 2478 11046 952 Korea Telecom (KIX)
17974 1917 516 31 PT TELEKOMUNIKASI INDONESIA
18566 1912 364 240 Covad Communications
1785 1819 680 123 PaeTec Communications, Inc.
4323 1614 1085 396 Time Warner Telecom
10620 1592 294 163 TVCABLE BOGOTA
20115 1587 1538 631 Charter Communications
7029 1580 995 230 Windstream Communications Inc
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 1917 1886 PT TELEKOMUNIKASI INDONESIA
1785 1819 1696 PaeTec Communications, Inc.
18566 1912 1672 Covad Communications
4766 2478 1526 Korea Telecom (KIX)
7545 1578 1493 TPG Internet Pty Ltd
23456 3107 1439 32-bit ASN transition
10620 1592 1429 TVCABLE BOGOTA
7552 1412 1405 Vietel Corporation
4755 1536 1368 TATA Communications formerly
7029 1580 1350 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
/13:460 /14:797 /15:1419 /16:11937 /17:5925 /18:9961
/19:19557 /20:26625 /21:26662 /22:35710 /23:34260 /24:191223
/25:1109 /26:1306 /27:736 /28:156 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2216 3584 bellsouth.net, inc.
18566 1868 1912 Covad Communications
23456 1524 3107 32-bit ASN transition
10620 1487 1592 TVCABLE BOGOTA
7029 1280 1580 Windstream Communications Inc
11492 1105 1151 Cable One
7011 1057 1160 Citizens Utilities
1785 1052 1819 PaeTec Communications, Inc.
22773 935 1441 Cox Communications, Inc.
30036 884 909 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 2:43 4:15 5:1 6:3 8:344
12:1956 13:1 14:520 15:15 16:3 17:5
20:10 23:31 24:1685 27:877 31:513 32:64
33:4 34:2 36:4 38:734 40:107 41:2440
42:50 44:3 46:1065 47:3 49:219 50:413
52:13 54:2 55:7 56:2 57:35 58:860
59:500 60:376 61:1180 62:1081 63:1928 64:3997
65:2304 66:3927 67:1926 68:1113 69:3106 70:778
71:373 72:1843 74:2438 75:330 76:339 77:859
78:708 79:476 80:1129 81:827 82:492 83:473
84:683 85:1080 86:492 87:842 88:336 89:1527
90:224 91:4036 92:525 93:1131 94:1346 95:872
96:418 97:267 98:927 99:37 101:79 103:232
106:79 107:35 108:75 109:1011 110:640 111:731
112:306 113:411 114:556 115:696 116:997 117:682
118:880 119:1198 120:318 121:689 122:1619 123:989
124:1312 125:1337 128:245 129:176 130:171 131:581
132:118 133:21 134:213 135:54 136:204 137:138
138:291 139:115 140:487 141:276 142:387 143:424
144:487 145:59 146:462 147:231 148:635 149:250
150:202 151:189 152:441 153:185 154:5 155:401
156:200 157:334 158:133 159:457 160:318 161:207
162:329 163:166 164:515 165:367 166:534 167:433
168:748 169:153 170:848 171:82 172:1 173:1644
174:624 175:396 176:156 177:227 178:1004 180:931
181:26 182:532 183:240 184:337 185:1 186:1368
187:693 188:937 189:855 190:5116 192:5918 193:4986
194:3508 195:3036 196:1232 197:142 198:3589 199:4052
200:5509 201:1483 202:8406 203:8454 204:4246 205:2323
206:2672 207:2805 208:4004 209:3417 210:2706 211:1462
212:2081 213:1764 214:780 215:70 216:4841 217:1609
218:552 219:354 220:1217 221:514 222:360 223:245
End of report
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