Routing Table Report 04:00 +10GMT Tue 06 Dec, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 383244
Prefixes after maximum aggregation: 167451
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 188013
Total ASes present in the Internet Routing Table: 39481
Prefixes per ASN: 9.71
Origin-only ASes present in the Internet Routing Table: 32450
Origin ASes announcing only one prefix: 15485
Transit ASes present in the Internet Routing Table: 5330
Transit-only ASes present in the Internet Routing Table: 143
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 1837
Unregistered ASNs in the Routing Table: 943
Number of 32-bit ASNs allocated by the RIRs: 2045
Number of 32-bit ASNs visible in the Routing Table: 1701
Prefixes from 32-bit ASNs in the Routing Table: 4007
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 83
Number of addresses announced to Internet: 2496886016
Equivalent to 148 /8s, 211 /16s and 117 /24s
Percentage of available address space announced: 67.4
Percentage of allocated address space announced: 67.4
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.7
Total number of prefixes smaller than registry allocations: 161719
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 95234
Total APNIC prefixes after maximum aggregation: 31170
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 91706
Unique aggregates announced from the APNIC address blocks: 38334
APNIC Region origin ASes present in the Internet Routing Table: 4603
APNIC Prefixes per ASN: 19.92
APNIC Region origin ASes announcing only one prefix: 1252
APNIC Region transit ASes present in the Internet Routing Table: 730
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 117
Number of APNIC addresses announced to Internet: 630951008
Equivalent to 37 /8s, 155 /16s and 140 /24s
Percentage of available APNIC address space announced: 80.0
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: 145870
Total ARIN prefixes after maximum aggregation: 74777
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 118020
Unique aggregates announced from the ARIN address blocks: 48357
ARIN Region origin ASes present in the Internet Routing Table: 14783
ARIN Prefixes per ASN: 7.98
ARIN Region origin ASes announcing only one prefix: 5653
ARIN Region transit ASes present in the Internet Routing Table: 1572
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: 803184576
Equivalent to 47 /8s, 223 /16s and 159 /24s
Percentage of available ARIN address space announced: 63.8
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: 92933
Total RIPE prefixes after maximum aggregation: 51431
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 85182
Unique aggregates announced from the RIPE address blocks: 54746
RIPE Region origin ASes present in the Internet Routing Table: 16153
RIPE Prefixes per ASN: 5.27
RIPE Region origin ASes announcing only one prefix: 7984
RIPE Region transit ASes present in the Internet Routing Table: 2547
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: 1189
Number of RIPE addresses announced to Internet: 492818624
Equivalent to 29 /8s, 95 /16s and 208 /24s
Percentage of available RIPE address space announced: 79.4
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: 36678
Total LACNIC prefixes after maximum aggregation: 7965
LACNIC Deaggregation factor: 4.60
Prefixes being announced from the LACNIC address blocks: 36095
Unique aggregates announced from the LACNIC address blocks: 18800
LACNIC Region origin ASes present in the Internet Routing Table: 1555
LACNIC Prefixes per ASN: 23.21
LACNIC Region origin ASes announcing only one prefix: 439
LACNIC Region transit ASes present in the Internet Routing Table: 287
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 379
Number of LACNIC addresses announced to Internet: 94470272
Equivalent to 5 /8s, 161 /16s and 128 /24s
Percentage of available LACNIC address space announced: 62.6
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: 8353
Total AfriNIC prefixes after maximum aggregation: 2036
AfriNIC Deaggregation factor: 4.10
Prefixes being announced from the AfriNIC address blocks: 6399
Unique aggregates announced from the AfriNIC address blocks: 2015
AfriNIC Region origin ASes present in the Internet Routing Table: 501
AfriNIC Prefixes per ASN: 12.77
AfriNIC Region origin ASes announcing only one prefix: 157
AfriNIC Region transit ASes present in the Internet Routing Table: 110
Average AfriNIC Region AS path length visible: 4.5
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: 30037504
Equivalent to 1 /8s, 202 /16s and 86 /24s
Percentage of available AfriNIC address space announced: 44.8
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 2511 11105 974 Korea Telecom (KIX)
17974 1653 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1633 303 86 TPG Internet Pty Ltd
4755 1511 385 158 TATA Communications formerly
7552 1386 1064 7 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1101 81 494 Sify Limited
4808 1079 2038 305 CNCGROUP IP network: China169
24560 983 382 162 Bharti Airtel Ltd., Telemedia
18101 958 121 155 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 3484 3814 218 bellsouth.net, inc.
7029 2913 1016 199 Windstream Communications Inc
18566 2094 383 177 Covad Communications
1785 1853 680 121 PaeTec Communications, Inc.
4323 1612 1073 385 Time Warner Telecom
20115 1605 1549 626 Charter Communications
22773 1504 2909 104 Cox Communications, Inc.
19262 1388 4683 401 Verizon Global Networks
7018 1313 7029 859 AT&T WorldNet Services
2386 1190 493 856 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
8402 1641 480 15 Corbina telecom
6830 645 1927 412 UPC Distribution Services
34984 616 116 195 BILISIM TELEKOM
20940 546 174 437 Akamai Technologies European
3320 516 8168 389 Deutsche Telekom AG
12479 494 601 13 Uni2 Autonomous System
3292 480 2106 407 TDC Tele Danmark
8866 462 133 26 Bulgarian Telecommunication C
8551 421 366 45 Bezeq International
31148 413 22 115 FreeNet ISP
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 1703 315 180 TVCABLE BOGOTA
28573 1541 1059 72 NET Servicos de Comunicao S.A
8151 1452 2985 345 UniNet S.A. de C.V.
7303 1239 751 174 Telecom Argentina Stet-France
27947 613 72 89 Telconet S.A
22047 582 322 17 VTR PUNTO NET S.A.
6503 553 434 68 AVANTEL, S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 547 237 89 Empresa Nacional de Telecomun
11172 529 86 96 Servicios Alestra S.A de C.V
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
8452 967 958 13 TEDATA
24863 784 146 35 LINKdotNET AS number
3741 281 939 230 The Internet Solution
15706 242 32 6 Sudatel Internet Exchange Aut
33776 240 13 8 Starcomms Nigeria Limited
6713 235 519 14 Itissalat Al-MAGHRIB
29571 217 17 13 Ci Telecom Autonomous system
12258 195 28 60 Vodacom Internet Company
24835 194 80 8 RAYA Telecom - Egypt
16637 160 662 82 MTN Network Solutions
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 3484 3814 218 bellsouth.net, inc.
7029 2913 1016 199 Windstream Communications Inc
4766 2511 11105 974 Korea Telecom (KIX)
18566 2094 383 177 Covad Communications
1785 1853 680 121 PaeTec Communications, Inc.
10620 1703 315 180 TVCABLE BOGOTA
17974 1653 503 38 PT TELEKOMUNIKASI INDONESIA
8402 1641 480 15 Corbina telecom
7545 1633 303 86 TPG Internet Pty Ltd
4323 1612 1073 385 Time Warner Telecom
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 2913 2714 Windstream Communications Inc
18566 2094 1917 Covad Communications
1785 1853 1732 PaeTec Communications, Inc.
8402 1641 1626 Corbina telecom
17974 1653 1615 PT TELEKOMUNIKASI INDONESIA
7545 1633 1547 TPG Internet Pty Ltd
4766 2511 1537 Korea Telecom (KIX)
10620 1703 1523 TVCABLE BOGOTA
28573 1541 1469 NET Servicos de Comunicao S.A
22773 1504 1400 Cox 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
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
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
Complete listing at http://thyme.rand.apnic.net/current/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
41.222.79.0/24 37345 MEDALLION Communications
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
64.21.192.0/20 11610 Internet Nebraska Corporation
64.21.212.0/22 11610 Internet Nebraska Corporation
64.21.216.0/21 11610 Internet Nebraska Corporation
66.171.32.0/20 705 UUNET Technologies, Inc.
66.175.222.0/23 30058 FDC Servers.net, LLC
66.180.239.0/24 35888 VIGNETTE CORPORATION
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 /12:236
/13:463 /14:808 /15:1437 /16:12048 /17:6115 /18:10148
/19:20057 /20:27746 /21:27975 /22:38146 /23:35686 /24:198700
/25:1178 /26:1404 /27:785 /28:165 /29:3 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2542 2913 Windstream Communications Inc
6389 2127 3484 bellsouth.net, inc.
18566 2043 2094 Covad Communications
8402 1616 1641 Corbina telecom
10620 1598 1703 TVCABLE BOGOTA
11492 1119 1156 Cable One
30036 1081 1120 Mediacom Communications Corp
1785 1058 1853 PaeTec Communications, Inc.
7011 1052 1169 Citizens Utilities
22773 964 1504 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:452 2:493 4:15 5:1 6:3 8:359
12:1947 13:1 14:556 15:11 16:3 17:7
20:9 23:73 24:1695 27:1055 31:717 32:67
33:2 34:2 36:4 38:772 39:1 40:114
41:2882 42:66 43:1 44:3 46:1112 47:3
49:292 50:400 52:13 55:5 56:2 57:49
58:941 59:486 60:358 61:1178 62:913 63:1965
64:4068 65:2309 66:4368 67:1996 68:1174 69:3150
70:904 71:361 72:1773 74:2634 75:431 76:316
77:908 78:890 79:435 80:1135 81:842 82:525
83:527 84:471 85:1164 86:410 87:907 88:341
89:1588 90:246 91:4325 92:532 93:1429 94:1326
95:1125 96:394 97:267 98:764 99:37 101:121
103:527 106:7 107:103 108:89 109:1118 110:668
111:819 112:368 113:488 114:616 115:697 116:896
117:707 118:869 119:1264 120:349 121:667 122:1564
123:1022 124:1349 125:1346 128:313 129:185 130:181
131:579 132:157 133:21 134:222 135:54 136:213
137:146 138:287 139:123 140:491 141:253 142:380
143:421 144:499 145:66 146:474 147:221 148:642
149:270 150:166 151:192 152:448 153:171 154:7
155:381 156:210 157:354 158:156 159:524 160:332
161:218 162:364 163:177 164:519 165:386 166:541
167:454 168:823 169:146 170:823 171:90 172:4
173:1653 174:575 175:417 176:342 177:406 178:1145
180:1177 181:38 182:671 183:243 184:404 185:1
186:1481 187:783 188:943 189:1164 190:5241 192:5968
193:5123 194:3553 195:3119 196:1287 197:169 198:3622
199:4239 200:5524 201:1696 202:8454 203:8486 204:4326
205:2404 206:2669 207:2838 208:4006 209:3552 210:2737
211:1475 212:1972 213:1801 214:815 215:92 216:4932
217:1468 218:577 219:340 220:1252 221:527 222:325
223:230
End of report
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