Routing Table Report 04:00 +10GMT Wed 14 Dec, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 385030
Prefixes after maximum aggregation: 167679
Deaggregation factor: 2.30
Unique aggregates announced to Internet: 188862
Total ASes present in the Internet Routing Table: 39561
Prefixes per ASN: 9.73
Origin-only ASes present in the Internet Routing Table: 32498
Origin ASes announcing only one prefix: 15518
Transit ASes present in the Internet Routing Table: 5336
Transit-only ASes present in the Internet Routing Table: 145
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: 1887
Unregistered ASNs in the Routing Table: 984
Number of 32-bit ASNs allocated by the RIRs: 2078
Number of 32-bit ASNs visible in the Routing Table: 1727
Prefixes from 32-bit ASNs in the Routing Table: 4110
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 80
Number of addresses announced to Internet: 2501628928
Equivalent to 149 /8s, 27 /16s and 212 /24s
Percentage of available address space announced: 67.5
Percentage of allocated address space announced: 67.5
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: 162530
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 95484
Total APNIC prefixes after maximum aggregation: 31240
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 91949
Unique aggregates announced from the APNIC address blocks: 38485
APNIC Region origin ASes present in the Internet Routing Table: 4605
APNIC Prefixes per ASN: 19.97
APNIC Region origin ASes announcing only one prefix: 1253
APNIC Region transit ASes present in the Internet Routing Table: 724
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 121
Number of APNIC addresses announced to Internet: 631453024
Equivalent to 37 /8s, 163 /16s and 53 /24s
Percentage of available APNIC address space announced: 80.1
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: 146383
Total ARIN prefixes after maximum aggregation: 74785
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118503
Unique aggregates announced from the ARIN address blocks: 48699
ARIN Region origin ASes present in the Internet Routing Table: 14803
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5669
ARIN Region transit ASes present in the Internet Routing Table: 1576
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: 804431808
Equivalent to 47 /8s, 242 /16s and 167 /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: 93651
Total RIPE prefixes after maximum aggregation: 51593
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 85959
Unique aggregates announced from the RIPE address blocks: 54968
RIPE Region origin ASes present in the Internet Routing Table: 16183
RIPE Prefixes per ASN: 5.31
RIPE Region origin ASes announcing only one prefix: 7994
RIPE Region transit ASes present in the Internet Routing Table: 2564
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: 1203
Number of RIPE addresses announced to Internet: 494123456
Equivalent to 29 /8s, 115 /16s and 185 /24s
Percentage of available RIPE address space announced: 79.6
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: 36802
Total LACNIC prefixes after maximum aggregation: 7936
LACNIC Deaggregation factor: 4.64
Prefixes being announced from the LACNIC address blocks: 36293
Unique aggregates announced from the LACNIC address blocks: 18886
LACNIC Region origin ASes present in the Internet Routing Table: 1555
LACNIC Prefixes per ASN: 23.34
LACNIC Region origin ASes announcing only one prefix: 443
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: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 387
Number of LACNIC addresses announced to Internet: 94692480
Equivalent to 5 /8s, 164 /16s and 228 /24s
Percentage of available LACNIC address space announced: 62.7
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: 8430
Total AfriNIC prefixes after maximum aggregation: 2053
AfriNIC Deaggregation factor: 4.11
Prefixes being announced from the AfriNIC address blocks: 6487
Unique aggregates announced from the AfriNIC address blocks: 2074
AfriNIC Region origin ASes present in the Internet Routing Table: 501
AfriNIC Prefixes per ASN: 12.95
AfriNIC Region origin ASes announcing only one prefix: 159
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: 30846464
Equivalent to 1 /8s, 214 /16s and 174 /24s
Percentage of available AfriNIC address space announced: 46.0
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 2509 11104 971 Korea Telecom (KIX)
17974 1701 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1630 303 85 TPG Internet Pty Ltd
4755 1514 385 158 TATA Communications formerly
7552 1375 1064 7 Vietel Corporation
9829 1170 989 28 BSNL National Internet Backbo
9583 1099 81 496 Sify Limited
4808 1076 2034 303 CNCGROUP IP network: China169
24560 980 381 164 Bharti Airtel Ltd., Telemedia
18101 963 122 157 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 3481 3814 218 bellsouth.net, inc.
7029 2917 1017 200 Windstream Communications Inc
18566 2093 383 177 Covad Communications
1785 1855 680 121 PaeTec Communications, Inc.
4323 1617 1073 385 Time Warner Telecom
20115 1603 1549 625 Charter Communications
22773 1511 2909 104 Cox Communications, Inc.
30036 1449 259 679 Mediacom Communications Corp
19262 1388 4683 401 Verizon Global Networks
7018 1308 7029 857 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 1661 480 15 Corbina telecom
6830 646 1927 412 UPC Distribution Services
34984 625 132 195 BILISIM TELEKOM
2118 551 99 14 EUnet/RELCOM Autonomous Syste
12479 549 630 48 Uni2 Autonomous System
20940 545 175 435 Akamai Technologies European
3320 528 8161 394 Deutsche Telekom AG
3292 480 2106 407 TDC Tele Danmark
8866 461 134 27 Bulgarian Telecommunication C
8551 423 366 45 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 1721 318 155 TVCABLE BOGOTA
28573 1563 1059 72 NET Servicos de Comunicao S.A
8151 1461 2985 349 UniNet S.A. de C.V.
7303 1240 751 175 Telecom Argentina Stet-France
27947 616 72 91 Telconet S.A
22047 582 322 17 VTR PUNTO NET S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
6503 551 434 67 AVANTEL, S.A.
3816 546 237 89 Empresa Nacional de Telecomun
11172 529 102 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 964 958 13 TEDATA
24863 789 146 36 LINKdotNET AS number
3741 281 939 230 The Internet Solution
6713 243 647 17 Itissalat Al-MAGHRIB
15706 242 32 6 Sudatel Internet Exchange Aut
33776 240 13 8 Starcomms Nigeria Limited
29571 217 17 13 Ci Telecom Autonomous system
12258 195 28 60 Vodacom Internet Company
24835 188 80 8 RAYA Telecom - Egypt
16637 161 664 83 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 3481 3814 218 bellsouth.net, inc.
7029 2917 1017 200 Windstream Communications Inc
4766 2509 11104 971 Korea Telecom (KIX)
18566 2093 383 177 Covad Communications
1785 1855 680 121 PaeTec Communications, Inc.
10620 1721 318 155 TVCABLE BOGOTA
17974 1701 503 38 PT TELEKOMUNIKASI INDONESIA
8402 1661 480 15 Corbina telecom
7545 1630 303 85 TPG Internet Pty Ltd
4323 1617 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 2917 2717 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1855 1734 PaeTec Communications, Inc.
17974 1701 1663 PT TELEKOMUNIKASI INDONESIA
8402 1661 1646 Corbina telecom
10620 1721 1566 TVCABLE BOGOTA
7545 1630 1545 TPG Internet Pty Ltd
4766 2509 1538 Korea Telecom (KIX)
28573 1563 1491 NET Servicos de Comunicao S.A
22773 1511 1407 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
37.1.224.0/21 51059 Brightbox Systems Ltd
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
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
66.175.222.0/23 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 /12:237
/13:465 /14:811 /15:1445 /16:12047 /17:6099 /18:10148
/19:20094 /20:27813 /21:28127 /22:38252 /23:35786 /24:200015
/25:1177 /26:1412 /27:783 /28:172 /29:3 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2545 2917 Windstream Communications Inc
6389 2124 3481 bellsouth.net, inc.
18566 2042 2093 Covad Communications
8402 1636 1661 Corbina telecom
10620 1616 1721 TVCABLE BOGOTA
30036 1409 1449 Mediacom Communications Corp
11492 1105 1142 Cable One
1785 1060 1855 PaeTec Communications, Inc.
7011 1051 1168 Citizens Utilities
22773 969 1511 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:447 2:486 4:15 5:1 6:3 8:360
12:1945 13:1 14:558 15:11 16:3 17:7
20:9 23:72 24:1698 27:1118 31:730 32:67
33:2 34:2 36:4 38:773 39:1 40:114
41:2922 42:77 43:1 44:3 46:1132 47:3
49:276 50:464 52:13 55:5 56:2 57:45
58:947 59:486 60:342 61:1184 62:919 63:1968
64:4061 65:2304 66:4368 67:2009 68:1183 69:3131
70:916 71:363 72:1775 74:2639 75:431 76:319
77:939 78:886 79:439 80:1153 81:845 82:528
83:527 84:472 85:1168 86:410 87:902 88:342
89:1592 90:248 91:4362 92:541 93:1404 94:1321
95:1132 96:396 97:286 98:784 99:38 101:127
103:536 106:8 107:109 108:97 109:1096 110:672
111:824 112:379 113:488 114:612 115:705 116:878
117:716 118:887 119:1244 120:343 121:682 122:1559
123:1023 124:1371 125:1343 128:345 129:189 130:184
131:570 132:161 133:21 134:226 135:54 136:213
137:151 138:286 139:123 140:482 141:255 142:381
143:390 144:503 145:67 146:474 147:222 148:634
149:271 150:165 151:192 152:445 153:171 154:7
155:382 156:209 157:357 158:155 159:504 160:341
161:221 162:362 163:183 164:522 165:387 166:542
167:458 168:817 169:146 170:824 171:93 172:4
173:1791 174:605 175:418 176:358 177:427 178:1139
180:1200 181:38 182:669 183:251 184:397 185:1
186:1474 187:786 188:937 189:1180 190:5303 192:5977
193:5120 194:3796 195:3368 196:1275 197:173 198:3615
199:4221 200:5506 201:1708 202:8512 203:8508 204:4323
205:2403 206:2669 207:2842 208:4017 209:3565 210:2748
211:1472 212:1969 213:1795 214:821 215:95 216:4934
217:1495 218:584 219:344 220:1251 221:529 222:326
223:262
End of report
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