Routing Table Report 04:00 +10GMT Fri 02 Dec, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 383037
Prefixes after maximum aggregation: 167284
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 188439
Total ASes present in the Internet Routing Table: 39447
Prefixes per ASN: 9.71
Origin-only ASes present in the Internet Routing Table: 32450
Origin ASes announcing only one prefix: 15491
Transit ASes present in the Internet Routing Table: 5315
Transit-only ASes present in the Internet Routing Table: 142
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: 1822
Unregistered ASNs in the Routing Table: 939
Number of 32-bit ASNs allocated by the RIRs: 2019
Number of 32-bit ASNs visible in the Routing Table: 1682
Prefixes from 32-bit ASNs in the Routing Table: 3970
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 81
Number of addresses announced to Internet: 2496221568
Equivalent to 148 /8s, 201 /16s and 81 /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: 91.7
Total number of prefixes smaller than registry allocations: 161872
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 95111
Total APNIC prefixes after maximum aggregation: 31244
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 91592
Unique aggregates announced from the APNIC address blocks: 38616
APNIC Region origin ASes present in the Internet Routing Table: 4607
APNIC Prefixes per ASN: 19.88
APNIC Region origin ASes announcing only one prefix: 1255
APNIC Region transit ASes present in the Internet Routing Table: 729
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: 115
Number of APNIC addresses announced to Internet: 630977376
Equivalent to 37 /8s, 155 /16s and 243 /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: 146104
Total ARIN prefixes after maximum aggregation: 74615
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118319
Unique aggregates announced from the ARIN address blocks: 48651
ARIN Region origin ASes present in the Internet Routing Table: 14772
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5645
ARIN Region transit ASes present in the Internet Routing Table: 1566
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: 803104960
Equivalent to 47 /8s, 222 /16s and 104 /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: 92742
Total RIPE prefixes after maximum aggregation: 51369
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 84980
Unique aggregates announced from the RIPE address blocks: 54691
RIPE Region origin ASes present in the Internet Routing Table: 16146
RIPE Prefixes per ASN: 5.26
RIPE Region origin ASes announcing only one prefix: 7994
RIPE Region transit ASes present in the Internet Routing Table: 2539
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: 1181
Number of RIPE addresses announced to Internet: 492367168
Equivalent to 29 /8s, 88 /16s and 237 /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: 36597
Total LACNIC prefixes after maximum aggregation: 7960
LACNIC Deaggregation factor: 4.60
Prefixes being announced from the LACNIC address blocks: 36005
Unique aggregates announced from the LACNIC address blocks: 18748
LACNIC Region origin ASes present in the Internet Routing Table: 1554
LACNIC Prefixes per ASN: 23.17
LACNIC Region origin ASes announcing only one prefix: 441
LACNIC Region transit ASes present in the Internet Routing Table: 284
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: 370
Number of LACNIC addresses announced to Internet: 94249600
Equivalent to 5 /8s, 158 /16s and 34 /24s
Percentage of available LACNIC address space announced: 62.4
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: 8350
Total AfriNIC prefixes after maximum aggregation: 2028
AfriNIC Deaggregation factor: 4.12
Prefixes being announced from the AfriNIC address blocks: 6402
Unique aggregates announced from the AfriNIC address blocks: 2017
AfriNIC Region origin ASes present in the Internet Routing Table: 503
AfriNIC Prefixes per ASN: 12.73
AfriNIC Region origin ASes announcing only one prefix: 156
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: 29958144
Equivalent to 1 /8s, 201 /16s and 32 /24s
Percentage of available AfriNIC address space announced: 44.6
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 2510 11105 973 Korea Telecom (KIX)
17974 1644 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1626 303 87 TPG Internet Pty Ltd
4755 1510 381 157 TATA Communications formerly
7552 1386 1064 7 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1095 80 494 Sify Limited
4808 1083 2048 308 CNCGROUP IP network: China169
24560 968 343 219 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 3480 3814 217 bellsouth.net, inc.
7029 2912 1016 199 Windstream Communications Inc
18566 2093 383 177 Covad Communications
1785 1851 680 120 PaeTec Communications, Inc.
4323 1610 1073 385 Time Warner Telecom
20115 1603 1546 625 Charter Communications
22773 1508 2909 104 Cox Communications, Inc.
30036 1435 257 675 Mediacom Communications Corp
19262 1388 4683 401 Verizon Global Networks
7018 1315 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 1577 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 518 8169 391 Deutsche Telekom AG
12479 492 600 11 Uni2 Autonomous System
3292 479 2106 406 TDC Tele Danmark
8866 462 133 26 Bulgarian Telecommunication C
8551 449 366 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 1699 314 177 TVCABLE BOGOTA
28573 1531 1059 72 NET Servicos de Comunicao S.A
8151 1451 2983 343 UniNet S.A. de C.V.
7303 1239 751 174 Telecom Argentina Stet-France
27947 612 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 527 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 926 958 13 TEDATA
24863 785 146 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 218 17 13 Ci Telecom Autonomous system
12258 195 28 60 Vodacom Internet Company
24835 190 80 8 RAYA Telecom - Egypt
16637 157 662 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 3480 3814 217 bellsouth.net, inc.
7029 2912 1016 199 Windstream Communications Inc
4766 2510 11105 973 Korea Telecom (KIX)
18566 2093 383 177 Covad Communications
1785 1851 680 120 PaeTec Communications, Inc.
10620 1699 314 177 TVCABLE BOGOTA
17974 1644 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1626 303 87 TPG Internet Pty Ltd
4323 1610 1073 385 Time Warner Telecom
20115 1603 1546 625 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
7029 2912 2713 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1851 1731 PaeTec Communications, Inc.
17974 1644 1606 PT TELEKOMUNIKASI INDONESIA
8402 1577 1562 Corbina telecom
7545 1626 1539 TPG Internet Pty Ltd
4766 2510 1537 Korea Telecom (KIX)
10620 1699 1522 TVCABLE BOGOTA
28573 1531 1459 NET Servicos de Comunicao S.A
22773 1508 1404 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
14764 UNALLOCATED 12.108.237.0/24 7018 AT&T WorldNet Servic
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 /15:1436 /16:12041 /17:6111 /18:10149
/19:20039 /20:27739 /21:27906 /22:38101 /23:35669 /24:198664
/25:1179 /26:1399 /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 2541 2912 Windstream Communications Inc
6389 2124 3480 bellsouth.net, inc.
18566 2042 2093 Covad Communications
10620 1594 1699 TVCABLE BOGOTA
8402 1552 1577 Corbina telecom
30036 1395 1435 Mediacom Communications Corp
11492 1119 1156 Cable One
1785 1058 1851 PaeTec Communications, Inc.
7011 1052 1169 Citizens Utilities
22773 968 1508 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:437 2:486 4:15 5:1 6:3 8:358
12:1949 13:1 14:552 15:11 16:3 17:7
20:9 23:71 24:1693 27:1059 31:717 32:66
33:2 34:2 36:4 38:768 39:1 40:114
41:2863 42:65 43:1 44:3 46:1109 47:3
49:293 50:450 52:13 55:6 56:2 57:49
58:928 59:482 60:358 61:1171 62:914 63:1964
64:4068 65:2309 66:4366 67:1998 68:1174 69:3158
70:904 71:361 72:1817 74:2650 75:430 76:320
77:905 78:888 79:438 80:1140 81:848 82:521
83:522 84:468 85:1160 86:410 87:906 88:341
89:1586 90:246 91:4303 92:531 93:1425 94:1324
95:1106 96:394 97:285 98:776 99:37 101:121
103:520 106:7 107:101 108:88 109:1094 110:667
111:811 112:368 113:487 114:622 115:698 116:895
117:706 118:875 119:1273 120:349 121:669 122:1569
123:1022 124:1339 125:1349 128:284 129:183 130:179
131:632 132:155 133:21 134:225 135:54 136:212
137:146 138:285 139:123 140:490 141:251 142:379
143:407 144:499 145:66 146:475 147:221 148:643
149:270 150:164 151:192 152:449 153:171 154:7
155:381 156:208 157:359 158:157 159:500 160:333
161:214 162:364 163:176 164:515 165:385 166:540
167:455 168:813 169:145 170:824 171:87 172:4
173:1761 174:589 175:419 176:340 177:408 178:1137
180:1174 181:39 182:665 183:243 184:399 185:1
186:1452 187:784 188:944 189:1159 190:5230 192:5959
193:5093 194:3556 195:3113 196:1285 197:169 198:3611
199:4234 200:5503 201:1697 202:8477 203:8492 204:4323
205:2405 206:2669 207:2838 208:4012 209:3552 210:2734
211:1473 212:1981 213:1807 214:818 215:96 216:4901
217:1487 218:576 219:340 220:1249 221:525 222:326
223:228
End of report