Routing Table Report 04:00 +10GMT Thu 24 Nov, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 382790
Prefixes after maximum aggregation: 167074
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 187962
Total ASes present in the Internet Routing Table: 39380
Prefixes per ASN: 9.72
Origin-only ASes present in the Internet Routing Table: 32443
Origin ASes announcing only one prefix: 15481
Transit ASes present in the Internet Routing Table: 5290
Transit-only ASes present in the Internet Routing Table: 136
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: 1769
Unregistered ASNs in the Routing Table: 900
Number of 32-bit ASNs allocated by the RIRs: 1980
Number of 32-bit ASNs visible in the Routing Table: 1647
Prefixes from 32-bit ASNs in the Routing Table: 3852
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 86
Number of addresses announced to Internet: 2493076992
Equivalent to 148 /8s, 153 /16s and 86 /24s
Percentage of available address space announced: 67.3
Percentage of allocated address space announced: 67.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.6
Total number of prefixes smaller than registry allocations: 161426
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 95497
Total APNIC prefixes after maximum aggregation: 31267
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 91941
Unique aggregates announced from the APNIC address blocks: 38660
APNIC Region origin ASes present in the Internet Routing Table: 4615
APNIC Prefixes per ASN: 19.92
APNIC Region origin ASes announcing only one prefix: 1263
APNIC Region transit ASes present in the Internet Routing Table: 713
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: 110
Number of APNIC addresses announced to Internet: 630786400
Equivalent to 37 /8s, 153 /16s and 9 /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: 145897
Total ARIN prefixes after maximum aggregation: 74476
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118229
Unique aggregates announced from the ARIN address blocks: 48610
ARIN Region origin ASes present in the Internet Routing Table: 14758
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5635
ARIN Region transit ASes present in the Internet Routing Table: 1565
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: 803538880
Equivalent to 47 /8s, 229 /16s and 7 /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: 92584
Total RIPE prefixes after maximum aggregation: 51278
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 84815
Unique aggregates announced from the RIPE address blocks: 54432
RIPE Region origin ASes present in the Internet Routing Table: 16131
RIPE Prefixes per ASN: 5.26
RIPE Region origin ASes announcing only one prefix: 7985
RIPE Region transit ASes present in the Internet Routing Table: 2545
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: 1145
Number of RIPE addresses announced to Internet: 492545856
Equivalent to 29 /8s, 91 /16s and 167 /24s
Percentage of available RIPE address space announced: 79.3
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: 36490
Total LACNIC prefixes after maximum aggregation: 7954
LACNIC Deaggregation factor: 4.59
Prefixes being announced from the LACNIC address blocks: 35903
Unique aggregates announced from the LACNIC address blocks: 18685
LACNIC Region origin ASes present in the Internet Routing Table: 1550
LACNIC Prefixes per ASN: 23.16
LACNIC Region origin ASes announcing only one prefix: 440
LACNIC Region transit ASes present in the Internet Routing Table: 286
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 31
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 376
Number of LACNIC addresses announced to Internet: 93176704
Equivalent to 5 /8s, 141 /16s and 195 /24s
Percentage of available LACNIC address space announced: 61.7
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: 8298
Total AfriNIC prefixes after maximum aggregation: 2026
AfriNIC Deaggregation factor: 4.10
Prefixes being announced from the AfriNIC address blocks: 6349
Unique aggregates announced from the AfriNIC address blocks: 2005
AfriNIC Region origin ASes present in the Internet Routing Table: 500
AfriNIC Prefixes per ASN: 12.70
AfriNIC Region origin ASes announcing only one prefix: 158
AfriNIC Region transit ASes present in the Internet Routing Table: 106
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: 27856384
Equivalent to 1 /8s, 169 /16s and 14 /24s
Percentage of available AfriNIC address space announced: 41.5
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 2515 11105 973 Korea Telecom (KIX)
17974 1640 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1625 303 85 TPG Internet Pty Ltd
4755 1516 376 168 TATA Communications formerly
7552 1391 1064 7 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1095 80 494 Sify Limited
4808 1079 2072 311 CNCGROUP IP network: China169
24560 959 342 230 Bharti Airtel Ltd., Telemedia
18101 952 119 148 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 3482 3814 220 bellsouth.net, inc.
7029 2909 1016 199 Windstream Communications Inc
18566 2093 383 177 Covad Communications
1785 1849 680 121 PaeTec Communications, Inc.
4323 1612 1078 389 Time Warner Telecom
20115 1600 1546 624 Charter Communications
22773 1502 2909 104 Cox Communications, Inc.
30036 1436 257 672 Mediacom Communications Corp
19262 1387 4683 401 Verizon Global Networks
7018 1312 7029 861 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 1615 480 15 Corbina telecom
6830 651 1927 412 UPC Distribution Services
34984 612 114 193 BILISIM TELEKOM
20940 556 185 438 Akamai Technologies European
3320 512 8168 389 Deutsche Telekom AG
12479 489 599 12 Uni2 Autonomous System
3292 479 2106 407 TDC Tele Danmark
8866 462 133 26 Bulgarian Telecommunication C
8551 415 366 45 Bezeq International
31148 411 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 1700 315 179 TVCABLE BOGOTA
28573 1513 1045 71 NET Servicos de Comunicao S.A
8151 1450 2973 342 UniNet S.A. de C.V.
7303 1238 751 173 Telecom Argentina Stet-France
27947 608 72 86 Telconet S.A
22047 581 322 17 VTR PUNTO NET S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
6503 552 434 68 AVANTEL, S.A.
3816 541 235 97 Empresa Nacional de Telecomun
11172 529 85 95 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 891 446 12 TEDATA
24863 780 146 36 LINKdotNET AS number
3741 283 940 232 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 218 17 13 Ci Telecom Autonomous system
12258 196 28 57 Vodacom Internet Company
24835 192 80 8 RAYA Telecom - Egypt
36923 159 20 4 Swift Networks Limited
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 3482 3814 220 bellsouth.net, inc.
7029 2909 1016 199 Windstream Communications Inc
4766 2515 11105 973 Korea Telecom (KIX)
18566 2093 383 177 Covad Communications
1785 1849 680 121 PaeTec Communications, Inc.
10620 1700 315 179 TVCABLE BOGOTA
17974 1640 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1625 303 85 TPG Internet Pty Ltd
8402 1615 480 15 Corbina telecom
4323 1612 1078 389 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 2909 2710 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1849 1728 PaeTec Communications, Inc.
17974 1640 1604 PT TELEKOMUNIKASI INDONESIA
8402 1615 1600 Corbina telecom
4766 2515 1542 Korea Telecom (KIX)
7545 1625 1540 TPG Internet Pty Ltd
10620 1700 1521 TVCABLE BOGOTA
28573 1513 1442 NET Servicos de Comunicao S.A
22773 1502 1398 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
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 37345 MEDALLION Communications
41.223.92.0/22 36936 >>UNKNOWN<<
46.18.104.0/21 8468 ENTANET International Ltd
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 /12:236
/13:465 /14:809 /15:1433 /16:12026 /17:6088 /18:10126
/19:20013 /20:27714 /21:27915 /22:38034 /23:35595 /24:198729
/25:1157 /26:1367 /27:771 /28:165 /29:3 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2538 2909 Windstream Communications Inc
6389 2124 3482 bellsouth.net, inc.
18566 2042 2093 Covad Communications
10620 1595 1700 TVCABLE BOGOTA
8402 1590 1615 Corbina telecom
30036 1396 1436 Mediacom Communications Corp
11492 1118 1155 Cable One
1785 1058 1849 PaeTec Communications, Inc.
7011 1050 1167 Citizens Utilities
22773 962 1502 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:419 2:488 4:15 5:1 6:3 8:358
12:1960 13:1 14:554 15:11 16:3 17:7
20:9 23:69 24:1694 27:1022 31:712 32:66
33:2 34:2 36:4 38:767 39:1 40:109
41:2841 42:64 43:1 44:3 46:1063 47:3
49:298 50:445 52:13 55:6 56:2 57:49
58:928 59:487 60:360 61:1161 62:909 63:1964
64:4079 65:2301 66:4344 67:2009 68:1173 69:3149
70:905 71:359 72:1814 74:2651 75:430 76:320
77:897 78:892 79:457 80:1131 81:838 82:514
83:521 84:470 85:1149 86:402 87:905 88:357
89:1598 90:237 91:4280 92:534 93:1439 94:1308
95:1124 96:396 97:285 98:783 99:37 101:246
103:513 106:1 107:96 108:86 109:1088 110:680
111:806 112:365 113:501 114:625 115:716 116:898
117:720 118:880 119:1285 120:352 121:669 122:1568
123:1024 124:1368 125:1354 128:293 129:184 130:174
131:633 132:155 133:21 134:224 135:54 136:212
137:146 138:285 139:122 140:494 141:250 142:385
143:400 144:498 145:65 146:473 147:219 148:640
149:273 150:163 151:191 152:448 153:172 154:6
155:375 156:208 157:357 158:156 159:496 160:333
161:214 162:365 163:174 164:518 165:369 166:541
167:448 168:825 169:145 170:742 171:87 172:4
173:1750 174:600 175:435 176:336 177:397 178:1122
180:1183 181:39 182:663 183:246 184:395 185:1
186:1446 187:783 188:938 189:1160 190:5195 192:5934
193:5056 194:3549 195:3113 196:1281 197:166 198:3614
199:4227 200:5523 201:1706 202:8545 203:8546 204:4306
205:2404 206:2657 207:2834 208:4023 209:3587 210:2746
211:1472 212:2032 213:1807 214:787 215:96 216:4918
217:1478 218:577 219:340 220:1253 221:520 222:325
223:278
End of report
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