Routing Table Report 04:00 +10GMT Mon 05 Dec, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 383310
Prefixes after maximum aggregation: 167346
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 188260
Total ASes present in the Internet Routing Table: 39470
Prefixes per ASN: 9.71
Origin-only ASes present in the Internet Routing Table: 32445
Origin ASes announcing only one prefix: 15499
Transit ASes present in the Internet Routing Table: 5329
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: 1831
Unregistered ASNs in the Routing Table: 942
Number of 32-bit ASNs allocated by the RIRs: 2044
Number of 32-bit ASNs visible in the Routing Table: 1696
Prefixes from 32-bit ASNs in the Routing Table: 4000
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 80
Number of addresses announced to Internet: 2496884608
Equivalent to 148 /8s, 211 /16s and 111 /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: 161858
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 95203
Total APNIC prefixes after maximum aggregation: 31177
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 91682
Unique aggregates announced from the APNIC address blocks: 38337
APNIC Region origin ASes present in the Internet Routing Table: 4600
APNIC Prefixes per ASN: 19.93
APNIC Region origin ASes announcing only one prefix: 1250
APNIC Region transit ASes present in the Internet Routing Table: 727
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: 116
Number of APNIC addresses announced to Internet: 631098464
Equivalent to 37 /8s, 157 /16s and 204 /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: 146114
Total ARIN prefixes after maximum aggregation: 74686
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118306
Unique aggregates announced from the ARIN address blocks: 48674
ARIN Region origin ASes present in the Internet Routing Table: 14775
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5654
ARIN Region transit ASes present in the Internet Routing Table: 1573
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: 803167168
Equivalent to 47 /8s, 223 /16s and 91 /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: 92911
Total RIPE prefixes after maximum aggregation: 51423
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 85196
Unique aggregates announced from the RIPE address blocks: 54741
RIPE Region origin ASes present in the Internet Routing Table: 16156
RIPE Prefixes per ASN: 5.27
RIPE Region origin ASes announcing only one prefix: 7997
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: 1188
Number of RIPE addresses announced to Internet: 492812864
Equivalent to 29 /8s, 95 /16s and 186 /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: 36588
Total LACNIC prefixes after maximum aggregation: 7952
LACNIC Deaggregation factor: 4.60
Prefixes being announced from the LACNIC address blocks: 36013
Unique aggregates announced from the LACNIC address blocks: 18792
LACNIC Region origin ASes present in the Internet Routing Table: 1557
LACNIC Prefixes per ASN: 23.13
LACNIC Region origin ASes announcing only one prefix: 443
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: 376
Number of LACNIC addresses announced to Internet: 94418048
Equivalent to 5 /8s, 160 /16s and 180 /24s
Percentage of available LACNIC address space announced: 62.5
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: 8326
Total AfriNIC prefixes after maximum aggregation: 2036
AfriNIC Deaggregation factor: 4.09
Prefixes being announced from the AfriNIC address blocks: 6378
Unique aggregates announced from the AfriNIC address blocks: 2011
AfriNIC Region origin ASes present in the Internet Routing Table: 501
AfriNIC Prefixes per ASN: 12.73
AfriNIC Region origin ASes announcing only one prefix: 155
AfriNIC Region transit ASes present in the Internet Routing Table: 112
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: 30043648
Equivalent to 1 /8s, 202 /16s and 110 /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 2510 11105 973 Korea Telecom (KIX)
17974 1654 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1629 303 87 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 1095 80 494 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 1613 1073 386 Time Warner Telecom
20115 1603 1546 625 Charter Communications
22773 1507 2909 104 Cox Communications, Inc.
30036 1435 257 675 Mediacom Communications Corp
19262 1388 4683 401 Verizon Global Networks
7018 1313 7029 859 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 1594 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 517 8168 390 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 453 366 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 1542 1059 72 NET Servicos de Comunicao S.A
8151 1330 2984 344 UniNet S.A. de C.V.
7303 1239 751 174 Telecom Argentina Stet-France
27947 606 72 89 Telconet S.A
22047 582 322 17 VTR PUNTO NET S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
6503 551 434 68 AVANTEL, S.A.
3816 546 237 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 952 958 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 217 17 13 Ci Telecom Autonomous system
12258 195 28 60 Vodacom Internet Company
24835 191 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 2510 11105 973 Korea Telecom (KIX)
18566 2094 383 177 Covad Communications
1785 1853 680 121 PaeTec Communications, Inc.
10620 1703 315 180 TVCABLE BOGOTA
17974 1654 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1629 303 87 TPG Internet Pty Ltd
4323 1613 1073 386 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 2913 2714 Windstream Communications Inc
18566 2094 1917 Covad Communications
1785 1853 1732 PaeTec Communications, Inc.
17974 1654 1616 PT TELEKOMUNIKASI INDONESIA
8402 1594 1579 Corbina telecom
7545 1629 1542 TPG Internet Pty Ltd
4766 2510 1537 Korea Telecom (KIX)
10620 1703 1523 TVCABLE BOGOTA
28573 1542 1470 NET Servicos de Comunicao S.A
22773 1507 1403 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 /16:12041 /17:6111 /18:10148
/19:20054 /20:27742 /21:27998 /22:38172 /23:35708 /24:198864
/25:1179 /26:1403 /27:785 /28:14 /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
10620 1598 1703 TVCABLE BOGOTA
8402 1569 1594 Corbina telecom
30036 1395 1435 Mediacom Communications Corp
11492 1119 1156 Cable One
1785 1058 1853 PaeTec Communications, Inc.
7011 1052 1169 Citizens Utilities
22773 967 1507 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:451 2:489 4:15 5:1 6:3 8:359
12:1947 13:1 14:554 15:11 16:3 17:7
20:9 23:73 24:1695 27:1060 31:717 32:67
33:2 34:2 36:4 38:772 39:1 40:114
41:2862 42:66 43:1 44:3 46:1109 47:2
49:292 50:453 52:13 55:6 56:2 57:49
58:939 59:485 60:358 61:1179 62:914 63:1970
64:4055 65:2310 66:4368 67:1998 68:1174 69:3146
70:904 71:361 72:1772 74:2642 75:430 76:319
77:907 78:887 79:437 80:1143 81:845 82:525
83:527 84:471 85:1165 86:408 87:909 88:341
89:1590 90:246 91:4315 92:531 93:1431 94:1326
95:1128 96:395 97:285 98:766 99:37 101:121
103:524 106:7 107:102 108:90 109:1122 110:666
111:819 112:369 113:488 114:617 115:701 116:896
117:707 118:867 119:1237 120:348 121:667 122:1573
123:1021 124:1349 125:1350 128:278 129:185 130:181
131:579 132:157 133:21 134:221 135:54 136:213
137:147 138:287 139:123 140:491 141:253 142:380
143:401 144:499 145:63 146:473 147:221 148:641
149:270 150:166 151:192 152:448 153:171 154:7
155:374 156:210 157:359 158:156 159:524 160:332
161:214 162:364 163:177 164:519 165:385 166:541
167:454 168:822 169:146 170:824 171:90 172:4
173:1765 174:575 175:417 176:337 177:411 178:1144
180:1180 181:38 182:669 183:241 184:402 185:1
186:1481 187:785 188:946 189:1162 190:5293 192:5969
193:5121 194:3556 195:3118 196:1283 197:169 198:3616
199:4237 200:5525 201:1696 202:8470 203:8491 204:4323
205:2401 206:2668 207:2840 208:4011 209:3554 210:2735
211:1474 212:1968 213:1803 214:812 215:92 216:4934
217:1488 218:577 219:340 220:1252 221:525 222:325
223:232
End of report
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