Routing Table Report 04:00 +10GMT Mon 22 Aug, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 367959
Prefixes after maximum aggregation: 166644
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 182548
Total ASes present in the Internet Routing Table: 38552
Prefixes per ASN: 9.54
Origin-only ASes present in the Internet Routing Table: 31996
Origin ASes announcing only one prefix: 15374
Transit ASes present in the Internet Routing Table: 5221
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: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 1108
Unregistered ASNs in the Routing Table: 633
Number of 32-bit ASNs allocated by the RIRs: 1668
Number of 32-bit ASNs visible in the Routing Table: 1335
Prefixes from 32-bit ASNs in the Routing Table: 3087
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 109
Number of addresses announced to Internet: 2469619392
Equivalent to 147 /8s, 51 /16s and 102 /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: 153483
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92360
Total APNIC prefixes after maximum aggregation: 30469
APNIC Deaggregation factor: 3.03
Prefixes being announced from the APNIC address blocks: 88884
Unique aggregates announced from the APNIC address blocks: 37722
APNIC Region origin ASes present in the Internet Routing Table: 4543
APNIC Prefixes per ASN: 19.57
APNIC Region origin ASes announcing only one prefix: 1247
APNIC Region transit ASes present in the Internet Routing Table: 715
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: 73
Number of APNIC addresses announced to Internet: 624521760
Equivalent to 37 /8s, 57 /16s and 114 /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: 142420
Total ARIN prefixes after maximum aggregation: 73358
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 114290
Unique aggregates announced from the ARIN address blocks: 47137
ARIN Region origin ASes present in the Internet Routing Table: 14601
ARIN Prefixes per ASN: 7.83
ARIN Region origin ASes announcing only one prefix: 5614
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: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 803826176
Equivalent to 47 /8s, 233 /16s and 106 /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: 87566
Total RIPE prefixes after maximum aggregation: 49734
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 80759
Unique aggregates announced from the RIPE address blocks: 53451
RIPE Region origin ASes present in the Internet Routing Table: 15901
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7917
RIPE Region transit ASes present in the Internet Routing Table: 2505
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: 955
Number of RIPE addresses announced to Internet: 487790080
Equivalent to 29 /8s, 19 /16s and 22 /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: 34037
Total LACNIC prefixes after maximum aggregation: 7653
LACNIC Deaggregation factor: 4.45
Prefixes being announced from the LACNIC address blocks: 33314
Unique aggregates announced from the LACNIC address blocks: 17337
LACNIC Region origin ASes present in the Internet Routing Table: 1500
LACNIC Prefixes per ASN: 22.21
LACNIC Region origin ASes announcing only one prefix: 441
LACNIC Region transit ASes present in the Internet Routing Table: 278
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: 291
Number of LACNIC addresses announced to Internet: 87656448
Equivalent to 5 /8s, 57 /16s and 136 /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: 8317
Total AfriNIC prefixes after maximum aggregation: 2034
AfriNIC Deaggregation factor: 4.09
Prefixes being announced from the AfriNIC address blocks: 6412
Unique aggregates announced from the AfriNIC address blocks: 2084
AfriNIC Region origin ASes present in the Internet Routing Table: 482
AfriNIC Prefixes per ASN: 13.30
AfriNIC Region origin ASes announcing only one prefix: 155
AfriNIC Region transit ASes present in the Internet Routing Table: 102
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: 26883584
Equivalent to 1 /8s, 154 /16s and 54 /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 2497 11046 949 Korea Telecom (KIX)
17974 1812 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1578 301 85 TPG Internet Pty Ltd
4755 1535 635 169 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 1076 79 496 Sify Limited
4808 1067 2098 306 CNCGROUP IP network: China169
17488 1004 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 1819 680 123 PaeTec Communications, Inc.
4323 1612 1085 396 Time Warner Telecom
20115 1586 1537 630 Charter Communications
7029 1579 991 229 Windstream Communications Inc
22773 1438 2903 97 Cox Communications, Inc.
19262 1405 4778 395 Verizon Global Networks
7018 1350 7050 881 AT&T WorldNet Services
2386 1230 516 891 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 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 404 354 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 1591 294 163 TVCABLE BOGOTA
8151 1395 2770 355 UniNet S.A. de C.V.
28573 1268 996 67 NET Servicos de Comunicao S.A
7303 1064 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 670 445 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 3087 736 1655 32-bit ASN transition
4766 2497 11046 949 Korea Telecom (KIX)
18566 1912 364 240 Covad Communications
1785 1819 680 123 PaeTec Communications, Inc.
17974 1812 516 31 PT TELEKOMUNIKASI INDONESIA
4323 1612 1085 396 Time Warner Telecom
10620 1591 294 163 TVCABLE BOGOTA
20115 1586 1537 630 Charter Communications
7029 1579 991 229 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 1812 1781 PT TELEKOMUNIKASI INDONESIA
1785 1819 1696 PaeTec Communications, Inc.
18566 1912 1672 Covad Communications
4766 2497 1548 Korea Telecom (KIX)
7545 1578 1493 TPG Internet Pty Ltd
23456 3087 1432 32-bit ASN transition
10620 1591 1428 TVCABLE BOGOTA
7552 1412 1405 Vietel Corporation
4755 1535 1366 TATA Communications formerly
7029 1579 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 /15:1418 /16:11937 /17:5922 /18:9962
/19:19535 /20:26607 /21:26608 /22:35545 /23:34248 /24:191244
/25:1099 /26:1303 /27:739 /28:154 /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 1511 3087 32-bit ASN transition
10620 1486 1591 TVCABLE BOGOTA
7029 1280 1579 Windstream Communications Inc
11492 1102 1148 Cable One
7011 1057 1160 Citizens Utilities
1785 1052 1819 PaeTec Communications, Inc.
22773 933 1438 Cox Communications, Inc.
30036 912 936 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:360 2:46 4:15 5:1 6:3 8:344
12:1956 13:1 14:516 15:15 16:3 17:5
20:10 23:27 24:1683 27:880 31:513 32:64
33:4 34:2 36:4 38:732 40:107 41:2454
42:45 44:3 46:1060 47:3 49:219 50:411
52:13 54:2 55:8 56:2 57:35 58:861
59:500 60:376 61:1177 62:1082 63:1932 64:3997
65:2300 66:3929 67:1917 68:1111 69:3095 70:779
71:372 72:1845 74:2436 75:329 76:339 77:863
78:709 79:479 80:1130 81:830 82:491 83:476
84:686 85:1078 86:498 87:840 88:335 89:1536
90:224 91:4045 92:525 93:1137 94:1348 95:872
96:419 97:267 98:926 99:37 101:79 103:215
106:69 107:32 108:74 109:1011 110:634 111:728
112:306 113:406 114:557 115:696 116:998 117:680
118:875 119:1190 120:316 121:688 122:1591 123:985
124:1316 125:1319 128:245 129:176 130:169 131:578
132:118 133:21 134:211 135:53 136:216 137:137
138:295 139:116 140:487 141:277 142:387 143:446
144:488 145:58 146:462 147:217 148:635 149:251
150:202 151:190 152:441 153:185 154:5 155:401
156:200 157:330 158:134 159:458 160:320 161:207
162:329 163:166 164:516 165:367 166:533 167:433
168:747 169:153 170:846 171:82 172:1 173:1652
174:622 175:394 176:153 177:222 178:1000 180:932
181:26 182:529 183:242 184:339 185:1 186:1369
187:740 188:934 189:928 190:5136 192:5921 193:4986
194:3512 195:3039 196:1229 197:126 198:3584 199:4045
200:5515 201:1486 202:8407 203:8475 204:4244 205:2336
206:2669 207:2797 208:4001 209:3417 210:2694 211:1460
212:2085 213:1751 214:785 215:70 216:4838 217:1600
218:543 219:354 220:1215 221:512 222:358 223:243
End of report
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