Routing Table Report 04:00 +10GMT Mon 10 Oct, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 375898
Prefixes after maximum aggregation: 169026
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 185384
Total ASes present in the Internet Routing Table: 38993
Prefixes per ASN: 9.64
Origin-only ASes present in the Internet Routing Table: 32298
Origin ASes announcing only one prefix: 15494
Transit ASes present in the Internet Routing Table: 5214
Transit-only ASes present in the Internet Routing Table: 132
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 1674
Unregistered ASNs in the Routing Table: 849
Number of 32-bit ASNs allocated by the RIRs: 1837
Number of 32-bit ASNs visible in the Routing Table: 1481
Prefixes from 32-bit ASNs in the Routing Table: 3383
Special use prefixes present in the Routing Table: 12
Prefixes being announced from unallocated address space: 92
Number of addresses announced to Internet: 2482857984
Equivalent to 147 /8s, 253 /16s and 104 /24s
Percentage of available address space announced: 67.0
Percentage of allocated address space announced: 67.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.5
Total number of prefixes smaller than registry allocations: 157329
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 94475
Total APNIC prefixes after maximum aggregation: 30813
APNIC Deaggregation factor: 3.07
Prefixes being announced from the APNIC address blocks: 90926
Unique aggregates announced from the APNIC address blocks: 37972
APNIC Region origin ASes present in the Internet Routing Table: 4572
APNIC Prefixes per ASN: 19.89
APNIC Region origin ASes announcing only one prefix: 1253
APNIC Region transit ASes present in the Internet Routing Table: 701
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: 90
Number of APNIC addresses announced to Internet: 628413792
Equivalent to 37 /8s, 116 /16s and 213 /24s
Percentage of available APNIC address space announced: 79.7
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: 144344
Total ARIN prefixes after maximum aggregation: 74066
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 116466
Unique aggregates announced from the ARIN address blocks: 48040
ARIN Region origin ASes present in the Internet Routing Table: 14717
ARIN Prefixes per ASN: 7.91
ARIN Region origin ASes announcing only one prefix: 5671
ARIN Region transit ASes present in the Internet Routing Table: 1560
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 804546560
Equivalent to 47 /8s, 244 /16s and 104 /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: 90230
Total RIPE prefixes after maximum aggregation: 50531
RIPE Deaggregation factor: 1.79
Prefixes being announced from the RIPE address blocks: 82898
Unique aggregates announced from the RIPE address blocks: 54269
RIPE Region origin ASes present in the Internet Routing Table: 16022
RIPE Prefixes per ASN: 5.17
RIPE Region origin ASes announcing only one prefix: 7963
RIPE Region transit ASes present in the Internet Routing Table: 2493
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1046
Number of RIPE addresses announced to Internet: 490528128
Equivalent to 29 /8s, 60 /16s and 221 /24s
Percentage of available RIPE address space announced: 79.0
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: 34987
Total LACNIC prefixes after maximum aggregation: 7858
LACNIC Deaggregation factor: 4.45
Prefixes being announced from the LACNIC address blocks: 34340
Unique aggregates announced from the LACNIC address blocks: 17942
LACNIC Region origin ASes present in the Internet Routing Table: 1535
LACNIC Prefixes per ASN: 22.37
LACNIC Region origin ASes announcing only one prefix: 453
LACNIC Region transit ASes present in the Internet Routing Table: 280
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: 329
Number of LACNIC addresses announced to Internet: 90626176
Equivalent to 5 /8s, 102 /16s and 216 /24s
Percentage of available LACNIC address space announced: 60.0
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: 8307
Total AfriNIC prefixes after maximum aggregation: 2004
AfriNIC Deaggregation factor: 4.15
Prefixes being announced from the AfriNIC address blocks: 6400
Unique aggregates announced from the AfriNIC address blocks: 1979
AfriNIC Region origin ASes present in the Internet Routing Table: 487
AfriNIC Prefixes per ASN: 13.14
AfriNIC Region origin ASes announcing only one prefix: 154
AfriNIC Region transit ASes present in the Internet Routing Table: 106
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: 27738368
Equivalent to 1 /8s, 167 /16s and 65 /24s
Percentage of available AfriNIC address space announced: 41.3
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 2493 11047 956 Korea Telecom (KIX)
17974 1958 519 33 PT TELEKOMUNIKASI INDONESIA
7545 1606 303 85 TPG Internet Pty Ltd
4755 1545 639 174 TATA Communications formerly
7552 1394 1064 7 Vietel Corporation
24560 1180 345 206 Bharti Airtel Ltd., Telemedia
9829 1165 989 28 BSNL National Internet Backbo
9583 1087 80 503 Sify Limited
4808 1079 2097 305 CNCGROUP IP network: China169
18101 952 165 142 Reliance Infocom Ltd Internet
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 3552 3816 223 bellsouth.net, inc.
18566 1915 366 239 Covad Communications
7029 1898 1016 197 Windstream Communications Inc
1785 1830 680 121 PaeTec Communications, Inc.
4323 1625 1083 391 Time Warner Telecom
20115 1591 1541 635 Charter Communications
22773 1458 2907 100 Cox Communications, Inc.
19262 1394 4728 400 Verizon Global Networks
30036 1385 250 676 Mediacom Communications Corp
7018 1338 7049 875 AT&T WorldNet Services
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
8402 1463 352 13 Corbina telecom
6830 635 1890 410 UPC Distribution Services
34984 578 108 180 BILISIM TELEKOM
20940 545 184 420 Akamai Technologies European
3320 503 8169 385 Deutsche Telekom AG
12479 481 593 7 Uni2 Autonomous System
3292 480 2082 407 TDC Tele Danmark
8866 460 133 26 Bulgarian Telecommunication C
29049 424 31 55 AzerSat LLC.
8551 404 354 44 Bezeq International
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 1680 310 154 TVCABLE BOGOTA
8151 1399 2841 341 UniNet S.A. de C.V.
28573 1366 1014 68 NET Servicos de Comunicao S.A
7303 1163 683 175 Telecom Argentina Stet-France
14420 636 59 87 CORPORACION NACIONAL DE TELEC
22047 579 322 17 VTR PUNTO NET S.A.
27947 575 71 83 Telconet S.A
6503 574 450 69 AVANTEL, S.A.
3816 536 232 95 Empresa Nacional de Telecomun
7738 526 1050 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 788 147 37 LINKdotNET AS number
8452 500 445 11 TEDATA
15475 445 74 8 Nile Online
36992 298 415 19 Etisalat MISR
3741 277 938 229 The Internet Solution
15706 244 32 6 Sudatel Internet Exchange Aut
6713 242 519 14 Itissalat Al-MAGHRIB
33776 207 13 14 Starcomms Nigeria Limited
12258 198 28 58 Vodacom Internet Company
29571 192 17 11 Ci Telecom Autonomous system
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 3552 3816 223 bellsouth.net, inc.
4766 2493 11047 956 Korea Telecom (KIX)
17974 1958 519 33 PT TELEKOMUNIKASI INDONESIA
18566 1915 366 239 Covad Communications
7029 1898 1016 197 Windstream Communications Inc
1785 1830 680 121 PaeTec Communications, Inc.
10620 1680 310 154 TVCABLE BOGOTA
4323 1625 1083 391 Time Warner Telecom
7545 1606 303 85 TPG Internet Pty Ltd
20115 1591 1541 635 Charter Communications
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 1958 1925 PT TELEKOMUNIKASI INDONESIA
1785 1830 1709 PaeTec Communications, Inc.
7029 1898 1701 Windstream Communications Inc
18566 1915 1676 Covad Communications
4766 2493 1537 Korea Telecom (KIX)
10620 1680 1526 TVCABLE BOGOTA
7545 1606 1521 TPG Internet Pty Ltd
8402 1463 1450 Corbina telecom
7552 1394 1387 Vietel Corporation
4755 1545 1371 TATA Communications formerly
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
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
17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
32873 UNALLOCATED 12.46.100.0/23 10912 InterNAP Network Ser
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
128.0.8.0/22 47926 Lutsche.net Ltd
128.0.12.0/22 47926 Lutsche.net Ltd
128.0.80.0/24 30977 JSC "Yugra-Telecom"
128.0.81.0/24 30977 JSC "Yugra-Telecom"
128.0.82.0/24 30977 JSC "Yugra-Telecom"
128.0.83.0/24 30977 JSC "Yugra-Telecom"
128.0.84.0/24 30977 JSC "Yugra-Telecom"
128.0.85.0/24 30977 JSC "Yugra-Telecom"
128.0.86.0/24 30977 JSC "Yugra-Telecom"
128.0.87.0/24 30977 JSC "Yugra-Telecom"
Complete listing at http://thyme.rand.apnic.net/current/data-dsua
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 /12:235
/13:464 /14:805 /15:1422 /16:11992 /17:6000 /18:10031
/19:19870 /20:27200 /21:27228 /22:36806 /23:34899 /24:195435
/25:1129 /26:1334 /27:739 /28:161 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2189 3552 bellsouth.net, inc.
18566 1871 1915 Covad Communications
7029 1590 1898 Windstream Communications Inc
10620 1575 1680 TVCABLE BOGOTA
8402 1440 1463 Corbina telecom
30036 1347 1385 Mediacom Communications Corp
11492 1114 1152 Cable One
1785 1055 1830 PaeTec Communications, Inc.
7011 1048 1167 Citizens Utilities
22773 947 1458 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:386 2:488 4:15 5:1 6:3 8:357
12:1956 13:1 14:532 15:11 16:3 17:7
20:9 23:55 24:1691 27:965 31:578 32:65
33:4 34:2 36:4 38:749 40:108 41:2521
42:49 44:3 46:993 47:3 49:264 50:442
52:13 55:5 56:2 57:37 58:881 59:490
60:364 61:1172 62:1089 63:1933 64:4052 65:2302
66:4013 67:1963 68:1106 69:3196 70:837 71:378
72:1854 74:2509 75:364 76:340 77:883 78:862
79:476 80:1127 81:827 82:502 83:505 84:624
85:1118 86:405 87:871 88:353 89:1603 90:268
91:4164 92:527 93:1381 94:1292 95:1036 96:437
97:280 98:900 99:37 101:210 103:344 106:70
107:61 108:54 109:1041 110:665 111:794 112:320
113:481 114:574 115:695 116:872 117:709 118:892
119:1258 120:338 121:694 122:1608 123:1020 124:1366
125:1381 128:255 129:176 130:166 131:584 132:121
133:21 134:214 135:54 136:213 137:140 138:288
139:125 140:495 141:292 142:386 143:425 144:492
145:63 146:472 147:215 148:631 149:266 150:153
151:193 152:447 153:179 154:7 155:383 156:208
157:359 158:151 159:467 160:320 161:208 162:337
163:175 164:504 165:367 166:537 167:435 168:746
169:145 170:868 171:86 172:1 173:1670 174:657
175:417 176:270 177:286 178:1053 180:1110 181:37
182:630 183:209 184:373 185:1 186:1418 187:660
188:922 189:857 190:5117 192:5904 193:5021 194:3532
195:3104 196:1243 197:182 198:3629 199:4134 200:5516
201:1645 202:8543 203:8502 204:4297 205:2357 206:2672
207:2823 208:4050 209:3453 210:2699 211:1458 212:2064
213:1795 214:783 215:90 216:4913 217:1600 218:560
219:339 220:1240 221:513 222:342 223:285
End of report