Routing Table Report 04:00 +10GMT Fri 02 Sep, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 369618
Prefixes after maximum aggregation: 167155
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 183272
Total ASes present in the Internet Routing Table: 38650
Prefixes per ASN: 9.56
Origin-only ASes present in the Internet Routing Table: 32050
Origin ASes announcing only one prefix: 15408
Transit ASes present in the Internet Routing Table: 5225
Transit-only ASes present in the Internet Routing Table: 139
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 36
Max AS path prepend of ASN (22394) 33
Prefixes from unregistered ASNs in the Routing Table: 1175
Unregistered ASNs in the Routing Table: 671
Number of 32-bit ASNs allocated by the RIRs: 1698
Number of 32-bit ASNs visible in the Routing Table: 1375
Prefixes from 32-bit ASNs in the Routing Table: 3175
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 106
Number of addresses announced to Internet: 2471934272
Equivalent to 147 /8s, 86 /16s and 185 /24s
Percentage of available address space announced: 66.7
Percentage of allocated address space announced: 66.7
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: 154121
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92948
Total APNIC prefixes after maximum aggregation: 30571
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 89479
Unique aggregates announced from the APNIC address blocks: 37998
APNIC Region origin ASes present in the Internet Routing Table: 4543
APNIC Prefixes per ASN: 19.70
APNIC Region origin ASes announcing only one prefix: 1248
APNIC Region transit ASes present in the Internet Routing Table: 707
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: 78
Number of APNIC addresses announced to Internet: 625771808
Equivalent to 37 /8s, 76 /16s and 133 /24s
Percentage of available APNIC address space announced: 79.4
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: 142880
Total ARIN prefixes after maximum aggregation: 73456
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 114781
Unique aggregates announced from the ARIN address blocks: 47208
ARIN Region origin ASes present in the Internet Routing Table: 14624
ARIN Prefixes per ASN: 7.85
ARIN Region origin ASes announcing only one prefix: 5625
ARIN Region transit ASes present in the Internet Routing Table: 1553
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 36
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 804172544
Equivalent to 47 /8s, 238 /16s and 179 /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: 87897
Total RIPE prefixes after maximum aggregation: 49893
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 81020
Unique aggregates announced from the RIPE address blocks: 53653
RIPE Region origin ASes present in the Internet Routing Table: 15926
RIPE Prefixes per ASN: 5.09
RIPE Region origin ASes announcing only one prefix: 7932
RIPE Region transit ASes present in the Internet Routing Table: 2509
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: 981
Number of RIPE addresses announced to Internet: 488381952
Equivalent to 29 /8s, 28 /16s and 30 /24s
Percentage of available RIPE address space announced: 78.7
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, 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: 34255
Total LACNIC prefixes after maximum aggregation: 7716
LACNIC Deaggregation factor: 4.44
Prefixes being announced from the LACNIC address blocks: 33542
Unique aggregates announced from the LACNIC address blocks: 17536
LACNIC Region origin ASes present in the Internet Routing Table: 1514
LACNIC Prefixes per ASN: 22.15
LACNIC Region origin ASes announcing only one prefix: 450
LACNIC Region transit ASes present in the Internet Routing Table: 281
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: 300
Number of LACNIC addresses announced to Internet: 87689344
Equivalent to 5 /8s, 58 /16s and 8 /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: 8296
Total AfriNIC prefixes after maximum aggregation: 2021
AfriNIC Deaggregation factor: 4.10
Prefixes being announced from the AfriNIC address blocks: 6405
Unique aggregates announced from the AfriNIC address blocks: 2016
AfriNIC Region origin ASes present in the Internet Routing Table: 481
AfriNIC Prefixes per ASN: 13.32
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: 4.6
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: 26800128
Equivalent to 1 /8s, 152 /16s and 240 /24s
Percentage of available AfriNIC address space announced: 39.9
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 2508 11047 954 Korea Telecom (KIX)
17974 1944 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1577 301 83 TPG Internet Pty Ltd
4755 1538 635 169 TATA Communications formerly
24560 1195 337 187 Bharti Airtel Ltd., Telemedia
9829 1153 989 28 BSNL National Internet Backbo
9583 1073 79 503 Sify Limited
4808 1057 2089 304 CNCGROUP IP network: China169
17488 1030 192 150 Hathway IP Over Cable Interne
7552 992 1062 11 Vietel Corporation
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 3539 3817 227 bellsouth.net, inc.
18566 1912 364 237 Covad Communications
1785 1821 680 122 PaeTec Communications, Inc.
4323 1614 1085 395 Time Warner Telecom
20115 1589 1539 632 Charter Communications
7029 1581 995 230 Windstream Communications Inc
22773 1452 2906 99 Cox Communications, Inc.
19262 1393 4716 399 Verizon Global Networks
7018 1337 7051 876 AT&T WorldNet Services
2386 1221 515 880 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 541 107 182 BILISIM TELEKOM
6830 523 1811 321 UPC Distribution Services
20940 486 144 380 Akamai Technologies European
3292 469 2079 403 TDC Tele Danmark
12479 463 593 7 Uni2 Autonomous System
8866 459 133 26 Bulgarian Telecommunication C
3320 430 8152 374 Deutsche Telekom AG
29049 424 31 55 AzerSat LLC.
8551 404 354 44 Bezeq International
702 399 1801 313 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 1628 298 154 TVCABLE BOGOTA
8151 1406 2779 349 UniNet S.A. de C.V.
28573 1283 1003 71 NET Servicos de Comunicao S.A
7303 1058 578 170 Telecom Argentina Stet-France
14420 715 57 88 CORPORACION NACIONAL DE TELEC
6503 592 450 68 AVANTEL, S.A.
22047 579 322 17 VTR PUNTO NET S.A.
27947 560 55 82 Telconet S.A
3816 531 232 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 810 147 43 LINKdotNET AS number
8452 627 445 11 TEDATA
15475 512 74 8 Nile Online
36992 302 415 14 Etisalat MISR
3741 266 937 227 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
15706 219 32 6 Sudatel Internet Exchange Aut
33776 207 13 14 Starcomms Nigeria Limited
12258 194 28 61 Vodacom Internet Company
24835 181 70 12 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 3539 3817 227 bellsouth.net, inc.
23456 3175 752 1706 32-bit ASN transition
4766 2508 11047 954 Korea Telecom (KIX)
17974 1944 516 31 PT TELEKOMUNIKASI INDONESIA
18566 1912 364 237 Covad Communications
1785 1821 680 122 PaeTec Communications, Inc.
10620 1628 298 154 TVCABLE BOGOTA
4323 1614 1085 395 Time Warner Telecom
20115 1589 1539 632 Charter Communications
7029 1581 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 1944 1913 PT TELEKOMUNIKASI INDONESIA
1785 1821 1699 PaeTec Communications, Inc.
18566 1912 1675 Covad Communications
4766 2508 1554 Korea Telecom (KIX)
7545 1577 1494 TPG Internet Pty Ltd
10620 1628 1474 TVCABLE BOGOTA
23456 3175 1469 32-bit ASN transition
4755 1538 1369 TATA Communications formerly
22773 1452 1353 Cox Communications, Inc.
7029 1581 1351 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<<
46.18.104.0/21 23456 32-bit ASN transition
62.61.220.0/24 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
/13:461 /14:795 /15:1409 /16:11940 /17:5939 /18:9965
/19:19615 /20:26595 /21:26722 /22:35762 /23:34428 /24:192256
/25:1124 /26:1320 /27:745 /28:161 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2180 3539 bellsouth.net, inc.
18566 1868 1912 Covad Communications
23456 1553 3175 32-bit ASN transition
10620 1523 1628 TVCABLE BOGOTA
7029 1280 1581 Windstream Communications Inc
11492 1107 1153 Cable One
1785 1053 1821 PaeTec Communications, Inc.
7011 1031 1154 Citizens Utilities
22773 942 1452 Cox Communications, Inc.
30036 927 955 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:363 2:46 4:15 5:1 6:3 8:345
12:1959 13:1 14:528 15:13 16:3 17:5
20:10 23:31 24:1678 27:931 31:515 32:64
33:3 34:2 36:4 38:735 40:107 41:2401
42:53 44:3 46:1077 47:3 49:229 50:413
52:13 54:2 55:5 56:2 57:35 58:875
59:491 60:376 61:1172 62:1095 63:1939 64:4006
65:2304 66:3936 67:1933 68:1109 69:3126 70:780
71:374 72:1857 74:2416 75:328 76:339 77:865
78:704 79:451 80:1118 81:831 82:494 83:477
84:683 85:1084 86:497 87:859 88:337 89:1539
90:231 91:4054 92:524 93:1139 94:1369 95:880
96:416 97:269 98:926 99:37 101:201 103:246
106:79 107:39 108:75 109:1020 110:667 111:748
112:308 113:428 114:565 115:704 116:995 117:680
118:886 119:1196 120:333 121:686 122:1619 123:992
124:1344 125:1285 128:246 129:178 130:166 131:580
132:118 133:21 134:214 135:53 136:213 137:135
138:294 139:116 140:490 141:286 142:389 143:426
144:487 145:61 146:461 147:223 148:632 149:249
150:155 151:190 152:441 153:179 154:6 155:398
156:201 157:354 158:141 159:458 160:319 161:206
162:335 163:167 164:514 165:366 166:537 167:435
168:749 169:150 170:846 171:84 172:1 173:1644
174:619 175:400 176:156 177:243 178:1020 180:1013
181:25 182:607 183:239 184:350 185:1 186:1401
187:685 188:936 189:884 190:5143 192:5921 193:4996
194:3518 195:3048 196:1231 197:143 198:3587 199:4087
200:5511 201:1531 202:8516 203:8500 204:4244 205:2328
206:2674 207:2831 208:4030 209:3430 210:2712 211:1461
212:2088 213:1761 214:778 215:76 216:4847 217:1622
218:550 219:344 220:1194 221:516 222:352 223:259
End of report
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