Routing Table Report 08:00 +10GMT Tue 06 Dec, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 377800
Prefixes after maximum aggregation: 165531
Deaggregation factor: 2.28
Unique aggregates announced to Internet: 188354
Total ASes present in the Internet Routing Table: 37625
Prefixes per ASN: 10.04
Origin-only ASes present in the Internet Routing Table: 32411
Origin ASes announcing only one prefix: 15493
Transit ASes present in the Internet Routing Table: 5214
Transit-only ASes present in the Internet Routing Table: 131
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 24
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 2572
Unregistered ASNs in the Routing Table: 1010
Number of 32-bit ASNs allocated by the RIRs: 2045
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4002
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 84
Number of addresses announced to Internet: 2514261504
Equivalent to 149 /8s, 220 /16s and 150 /24s
Percentage of available address space announced: 67.8
Percentage of allocated address space announced: 67.8
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: 157949
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90458
Total APNIC prefixes after maximum aggregation: 29862
APNIC Deaggregation factor: 3.03
Prefixes being announced from the APNIC address blocks: 87876
Unique aggregates announced from the APNIC address blocks: 38412
APNIC Region origin ASes present in the Internet Routing Table: 4554
APNIC Prefixes per ASN: 19.30
APNIC Region origin ASes announcing only one prefix: 1270
APNIC Region transit ASes present in the Internet Routing Table: 706
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 630670848
Equivalent to 37 /8s, 151 /16s and 70 /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: 145013
Total ARIN prefixes after maximum aggregation: 74275
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 117426
Unique aggregates announced from the ARIN address blocks: 48611
ARIN Region origin ASes present in the Internet Routing Table: 14708
ARIN Prefixes per ASN: 7.98
ARIN Region origin ASes announcing only one prefix: 5632
ARIN Region transit ASes present in the Internet Routing Table: 1505
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 803400448
Equivalent to 47 /8s, 226 /16s and 235 /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: 93221
Total RIPE prefixes after maximum aggregation: 51376
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 85469
Unique aggregates announced from the RIPE address blocks: 54778
RIPE Region origin ASes present in the Internet Routing Table: 16151
RIPE Prefixes per ASN: 5.29
RIPE Region origin ASes announcing only one prefix: 7995
RIPE Region transit ASes present in the Internet Routing Table: 2545
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 22
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 492819712
Equivalent to 29 /8s, 95 /16s and 213 /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: 36098
Total LACNIC prefixes after maximum aggregation: 7910
LACNIC Deaggregation factor: 4.56
Prefixes being announced from the LACNIC address blocks: 35655
Unique aggregates announced from the LACNIC address blocks: 18813
LACNIC Region origin ASes present in the Internet Routing Table: 1539
LACNIC Prefixes per ASN: 23.17
LACNIC Region origin ASes announcing only one prefix: 442
LACNIC Region transit ASes present in the Internet Routing Table: 273
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 94406656
Equivalent to 5 /8s, 160 /16s and 136 /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: 8321
Total AfriNIC prefixes after maximum aggregation: 2036
AfriNIC Deaggregation factor: 4.09
Prefixes being announced from the AfriNIC address blocks: 6387
Unique aggregates announced from the AfriNIC address blocks: 2022
AfriNIC Region origin ASes present in the Internet Routing Table: 500
AfriNIC Prefixes per ASN: 12.77
AfriNIC Region origin ASes announcing only one prefix: 154
AfriNIC Region transit ASes present in the Internet Routing Table: 111
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 29832960
Equivalent to 1 /8s, 199 /16s and 55 /24s
Percentage of available AfriNIC address space announced: 44.5
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 1951 11102 667 Korea Telecom (KIX)
7545 1630 303 86 TPG Internet Pty Ltd
17974 1601 503 38 PT Telekomunikasi Indonesia
4755 1499 385 158 TATA Communications formerly
9829 1166 989 28 National Internet Backbone
9583 1101 81 494 Sify Limited
24560 983 382 162 Bharti Airtel Ltd., Telemedia
7552 976 1062 11 Vietel Corporation
18101 959 121 155 Reliance Infocom Ltd Internet
17488 947 175 221 Hathway IP Over Cable Interne
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3484 3814 219 BellSouth.net Inc.
7029 2947 1042 212 Windstream Communications Inc
18566 2094 382 176 Covad Communications Co.
1785 1856 680 121 PaeTec Communications, Inc.
4323 1612 1089 386 tw telecom holdings, inc.
20115 1604 1549 626 Charter Communications
22773 1503 2909 104 Cox Communications Inc.
30036 1434 257 674 Mediacom Communications Corp
19262 1388 4683 401 Verizon Online LLC
7018 1321 7062 867 AT&T Services, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1459 480 15 Corbina telecom
6830 644 1927 412 UPC Broadband
34984 615 115 194 BILISIM TELEKOM
20940 546 173 439 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
3320 516 8168 389 Deutsche Telekom AG
12479 494 601 13 France Telecom Espana SA
3292 481 2106 408 TDC Data Networks
8866 461 133 26 Bulgarian Telecommunication C
8551 422 367 39 Bezeq International
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1703 315 180 Types of queries are: POCs, o
28573 1535 1059 72 Types of queries are: POCs, o
8151 1315 2966 341 Uninet S.A. de C.V.
7303 1239 751 174 Telecom Argentina S.A.
27947 596 72 91 Telconet S.A
22047 582 322 17 Types of queries are: POCs, o
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 549 237 89 Types of queries are: POCs, o
6503 542 434 69 Axtel, S.A.B. de C.V.
11172 530 102 97 Alestra, S. de R.L. de C.V.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 966 958 13 TEDATA
24863 781 146 32 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 196 28 61 Vodacom Internet Company
24835 194 80 8 RAYA Telecom - Egypt
16637 158 664 86 MTN Network Solutions
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3484 3814 219 BellSouth.net Inc.
7029 2947 1042 212 Windstream Communications Inc
18566 2094 382 176 Covad Communications Co.
4766 1951 11102 667 Korea Telecom (KIX)
1785 1856 680 121 PaeTec Communications, Inc.
10620 1703 315 180 Types of queries are: POCs, o
7545 1630 303 86 TPG Internet Pty Ltd
4323 1612 1089 386 tw telecom holdings, inc.
20115 1604 1549 626 Charter Communications
17974 1601 503 38 PT Telekomunikasi Indonesia
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 2947 2735 Windstream Communications Inc
18566 2094 1918 Covad Communications Co.
1785 1856 1735 PaeTec Communications, Inc.
17974 1601 1563 PT Telekomunikasi Indonesia
7545 1630 1544 TPG Internet Pty Ltd
10620 1703 1523 Types of queries are: POCs, o
28573 1535 1463 Types of queries are: POCs, o
8402 1459 1444 Corbina telecom
22773 1503 1399 Cox Communications Inc.
4755 1499 1341 TATA Communications formerly
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65333 PRIVATE 10.0.0.0/8 0 *
32805 UNALLOCATED 12.1.225.0/24 7018 AT&T Services, Inc.
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T Services, Inc.
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T Services, Inc.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
32567 UNALLOCATED 12.25.107.0/24 4323 tw telecom holdings,
30031 UNALLOCATED 12.27.122.0/24 7018 AT&T Services, Inc.
26095 UNALLOCATED 12.34.8.0/24 7018 AT&T Services, Inc.
21861 UNALLOCATED 12.37.59.0/24 7018 AT&T Services, Inc.
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T Services, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.0.0.0/8 65333 Internet Assigned Numbers Aut
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 65333 Internet Assigned Numbers Aut
192.0.2.0/24 65333 Internet Assigned Numbers Aut
192.168.0.0/16 0 *
198.18.0.0/15 65333 Internet Assigned Numbers Aut
Complete listing at http://thyme.rand.apnic.net/london/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
62.61.221.0/24 24974 Tachyon Europe BV
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 MCI Communications Services,
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/london/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 /8:20 /9:12 /10:27 /11:81 /12:237
/13:463 /14:805 /15:1433 /16:12008 /17:6094 /18:10113
/19:20158 /20:27715 /21:27927 /22:37851 /23:35432 /24:196896
/25:11 /26:21 /27:21 /28:151 /29:130 /30:62
/31:0 /32:132
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2560 2947 Windstream Communications Inc
6389 2126 3484 BellSouth.net Inc.
18566 2044 2094 Covad Communications Co.
10620 1598 1703 Types of queries are: POCs, o
8402 1434 1459 Corbina telecom
30036 1394 1434 Mediacom Communications Corp
11492 1119 1156 CABLE ONE, INC.
1785 1058 1856 PaeTec Communications, Inc.
7011 1052 1169 Frontier Communications of Am
22773 963 1503 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:451 2:457 4:15 5:1 6:3 8:359
12:1946 13:1 14:551 15:11 16:3 17:7
20:9 23:73 24:1688 27:1052 31:716 32:62
33:2 34:2 36:4 38:767 40:114 41:2899
42:66 44:3 46:1112 47:3 49:292 50:450
52:13 55:6 56:2 57:45 58:871 59:480
60:355 61:1073 62:917 63:1962 64:4038 65:2307
66:4346 67:2000 68:1176 69:3154 70:902 71:361
72:1776 74:2640 75:430 76:320 77:909 78:868
79:433 80:1144 81:843 82:530 83:529 84:470
85:1164 86:417 87:911 88:354 89:1584 90:246
91:4328 92:532 93:1412 94:1327 95:1085 96:389
97:285 98:764 99:37 101:121 103:524 106:7
107:103 108:90 109:1111 110:667 111:813 112:360
113:486 114:609 115:685 116:879 117:693 118:862
119:1241 120:347 121:651 122:1558 123:1019 124:1295
125:1297 128:253 129:177 130:177 131:576 132:149
133:21 134:214 135:54 136:211 137:143 138:287
139:121 140:465 141:252 142:364 143:423 144:496
145:66 146:468 147:222 148:621 149:269 150:159
151:192 152:446 153:171 154:6 155:396 156:207
157:323 158:156 159:452 160:332 161:204 162:361
163:167 164:515 165:388 166:541 167:457 168:814
169:145 170:823 171:90 172:4 173:1766 174:575
175:404 176:317 177:403 178:1146 180:1177 181:38
182:659 183:242 184:409 185:1 186:1477 187:780
188:946 189:1166 190:5216 192:5926 193:5118 194:3557
195:3120 196:1267 197:170 198:3575 199:4198 200:5443
201:1692 202:8235 203:8397 204:4247 205:2386 206:2580
207:2766 208:4007 209:3529 210:2661 211:1446 212:1988
213:1804 214:810 215:92 216:4904 217:1469 218:558
219:333 220:1215 221:507 222:296 223:228
End of report
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