Routing Table Report 04:00 +10GMT Thu 01 Sep, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 369415
Prefixes after maximum aggregation: 167114
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 183213
Total ASes present in the Internet Routing Table: 38643
Prefixes per ASN: 9.56
Origin-only ASes present in the Internet Routing Table: 32042
Origin ASes announcing only one prefix: 15402
Transit ASes present in the Internet Routing Table: 5231
Transit-only ASes present in the Internet Routing Table: 142
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 36
Max AS path prepend of ASN (22394) 33
Prefixes from unregistered ASNs in the Routing Table: 1161
Unregistered ASNs in the Routing Table: 666
Number of 32-bit ASNs allocated by the RIRs: 1690
Number of 32-bit ASNs visible in the Routing Table: 1370
Prefixes from 32-bit ASNs in the Routing Table: 3169
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 108
Number of addresses announced to Internet: 2471686464
Equivalent to 147 /8s, 82 /16s and 241 /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: 154032
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92936
Total APNIC prefixes after maximum aggregation: 30560
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 89450
Unique aggregates announced from the APNIC address blocks: 37986
APNIC Region origin ASes present in the Internet Routing Table: 4549
APNIC Prefixes per ASN: 19.66
APNIC Region origin ASes announcing only one prefix: 1250
APNIC Region transit ASes present in the Internet Routing Table: 705
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: 625615904
Equivalent to 37 /8s, 74 /16s and 36 /24s
Percentage of available APNIC address space announced: 79.3
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: 142854
Total ARIN prefixes after maximum aggregation: 73445
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 114771
Unique aggregates announced from the ARIN address blocks: 47169
ARIN Region origin ASes present in the Internet Routing Table: 14610
ARIN Prefixes per ASN: 7.86
ARIN Region origin ASes announcing only one prefix: 5613
ARIN Region transit ASes present in the Internet Routing Table: 1549
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: 803953664
Equivalent to 47 /8s, 235 /16s and 92 /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: 87845
Total RIPE prefixes after maximum aggregation: 49879
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 80970
Unique aggregates announced from the RIPE address blocks: 53642
RIPE Region origin ASes present in the Internet Routing Table: 15928
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7935
RIPE Region transit ASes present in the Internet Routing Table: 2517
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: 977
Number of RIPE addresses announced to Internet: 488315136
Equivalent to 29 /8s, 27 /16s and 25 /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: 34142
Total LACNIC prefixes after maximum aggregation: 7708
LACNIC Deaggregation factor: 4.43
Prefixes being announced from the LACNIC address blocks: 33510
Unique aggregates announced from the LACNIC address blocks: 17528
LACNIC Region origin ASes present in the Internet Routing Table: 1515
LACNIC Prefixes per ASN: 22.12
LACNIC Region origin ASes announcing only one prefix: 452
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: 299
Number of LACNIC addresses announced to Internet: 87899008
Equivalent to 5 /8s, 61 /16s and 59 /24s
Percentage of available LACNIC address space announced: 58.2
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: 8305
Total AfriNIC prefixes after maximum aggregation: 2035
AfriNIC Deaggregation factor: 4.08
Prefixes being announced from the AfriNIC address blocks: 6408
Unique aggregates announced from the AfriNIC address blocks: 2025
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: 152
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: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 26784256
Equivalent to 1 /8s, 152 /16s and 178 /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 1936 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1571 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 1021 191 149 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 3577 3817 227 bellsouth.net, inc.
18566 1912 364 240 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 1448 2903 96 Cox Communications, Inc.
19262 1391 4692 399 Verizon Global Networks
7018 1337 7051 876 AT&T WorldNet Services
2386 1216 515 877 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 491 146 382 Akamai Technologies European
3292 470 2080 404 TDC Tele Danmark
12479 462 593 7 Uni2 Autonomous System
8866 459 133 26 Bulgarian Telecommunication C
3320 430 8151 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 1407 2777 348 UniNet S.A. de C.V.
28573 1279 998 69 NET Servicos de Comunicao S.A
7303 1049 578 164 Telecom Argentina Stet-France
14420 715 57 88 CORPORACION NACIONAL DE TELEC
6503 592 450 68 AVANTEL, S.A.
22047 578 322 17 VTR PUNTO NET S.A.
27947 559 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 199 12 21 Starcomms Nigeria Limited
12258 194 28 61 Vodacom Internet Company
24835 177 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 3577 3817 227 bellsouth.net, inc.
23456 3169 750 1701 32-bit ASN transition
4766 2508 11047 954 Korea Telecom (KIX)
17974 1936 516 31 PT TELEKOMUNIKASI INDONESIA
18566 1912 364 240 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 1936 1905 PT TELEKOMUNIKASI INDONESIA
1785 1821 1699 PaeTec Communications, Inc.
18566 1912 1672 Covad Communications
4766 2508 1554 Korea Telecom (KIX)
7545 1571 1488 TPG Internet Pty Ltd
10620 1628 1474 TVCABLE BOGOTA
23456 3169 1468 32-bit ASN transition
4755 1538 1369 TATA Communications formerly
22773 1448 1352 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 /14:797 /15:1410 /16:11934 /17:5937 /18:9960
/19:19614 /20:26588 /21:26714 /22:35745 /23:34425 /24:192167
/25:1094 /26:1303 /27:730 /28:155 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2210 3577 bellsouth.net, inc.
18566 1868 1912 Covad Communications
23456 1557 3169 32-bit ASN transition
10620 1523 1628 TVCABLE BOGOTA
7029 1280 1581 Windstream Communications Inc
11492 1105 1151 Cable One
7011 1057 1182 Citizens Utilities
1785 1053 1821 PaeTec Communications, Inc.
22773 941 1448 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)
----------------------------------------------
1:365 2:45 4:15 5:1 6:3 8:344
12:1957 13:1 14:524 15:13 16:3 17:5
20:10 23:31 24:1675 27:911 31:512 32:64
33:4 34:2 36:4 38:735 40:107 41:2411
42:53 44:3 46:1079 47:3 49:229 50:411
52:13 54:2 55:6 56:2 57:35 58:872
59:490 60:377 61:1172 62:1096 63:1937 64:4004
65:2304 66:3939 67:1935 68:1114 69:3124 70:780
71:374 72:1859 74:2421 75:328 76:339 77:865
78:704 79:455 80:1122 81:831 82:495 83:476
84:685 85:1083 86:496 87:858 88:337 89:1539
90:229 91:4060 92:527 93:1139 94:1360 95:883
96:419 97:268 98:927 99:37 101:196 103:246
106:79 107:38 108:76 109:1017 110:666 111:746
112:308 113:430 114:612 115:704 116:994 117:681
118:888 119:1197 120:331 121:687 122:1619 123:1026
124:1343 125:1286 128:246 129:178 130:166 131:580
132:118 133:21 134:214 135:50 136:214 137:135
138:293 139:116 140:489 141:286 142:387 143:430
144:486 145:61 146:461 147:222 148:636 149:249
150:155 151:190 152:442 153:179 154:6 155:398
156:201 157:323 158:141 159:458 160:318 161:206
162:334 163:167 164:514 165:366 166:537 167:435
168:747 169:150 170:845 171:84 172:1 173:1638
174:629 175:399 176:156 177:240 178:1012 180:1011
181:25 182:607 183:239 184:349 185:1 186:1401
187:685 188:937 189:882 190:5135 192:5922 193:4991
194:3512 195:3043 196:1234 197:143 198:3585 199:4076
200:5485 201:1519 202:8507 203:8484 204:4238 205:2327
206:2673 207:2833 208:4026 209:3428 210:2709 211:1462
212:2087 213:1760 214:774 215:76 216:4844 217:1620
218:554 219:344 220:1197 221:515 222:352 223:258
End of report
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