Routing Table Report 08:00 +10GMT Sat 05 Nov, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 374944
Prefixes after maximum aggregation: 164674
Deaggregation factor: 2.28
Unique aggregates announced to Internet: 187153
Total ASes present in the Internet Routing Table: 37481
Prefixes per ASN: 10.00
Origin-only ASes present in the Internet Routing Table: 32339
Origin ASes announcing only one prefix: 15484
Transit ASes present in the Internet Routing Table: 5142
Transit-only ASes present in the Internet Routing Table: 130
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: 2344
Unregistered ASNs in the Routing Table: 922
Number of 32-bit ASNs allocated by the RIRs: 1925
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3678
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 87
Number of addresses announced to Internet: 2507363584
Equivalent to 149 /8s, 115 /16s and 85 /24s
Percentage of available address space announced: 67.6
Percentage of allocated address space announced: 67.6
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: 156885
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89741
Total APNIC prefixes after maximum aggregation: 29749
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 87136
Unique aggregates announced from the APNIC address blocks: 38276
APNIC Region origin ASes present in the Internet Routing Table: 4550
APNIC Prefixes per ASN: 19.15
APNIC Region origin ASes announcing only one prefix: 1285
APNIC Region transit ASes present in the Internet Routing Table: 694
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: 629312512
Equivalent to 37 /8s, 130 /16s and 140 /24s
Percentage of available APNIC address space announced: 79.8
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: 144699
Total ARIN prefixes after maximum aggregation: 74043
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 116890
Unique aggregates announced from the ARIN address blocks: 48447
ARIN Region origin ASes present in the Internet Routing Table: 14666
ARIN Prefixes per ASN: 7.97
ARIN Region origin ASes announcing only one prefix: 5631
ARIN Region transit ASes present in the Internet Routing Table: 1488
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: 804708352
Equivalent to 47 /8s, 246 /16s and 224 /24s
Percentage of available ARIN address space announced: 64.0
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: 92204
Total RIPE prefixes after maximum aggregation: 50954
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 84638
Unique aggregates announced from the RIPE address blocks: 54476
RIPE Region origin ASes present in the Internet Routing Table: 16069
RIPE Prefixes per ASN: 5.27
RIPE Region origin ASes announcing only one prefix: 7966
RIPE Region transit ASes present in the Internet Routing Table: 2514
Average RIPE Region AS path length visible: 3.4
Max RIPE Region AS path length visible: 24
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 491691776
Equivalent to 29 /8s, 78 /16s and 159 /24s
Percentage of available RIPE address space announced: 79.2
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: 35377
Total LACNIC prefixes after maximum aggregation: 7829
LACNIC Deaggregation factor: 4.52
Prefixes being announced from the LACNIC address blocks: 34951
Unique aggregates announced from the LACNIC address blocks: 18544
LACNIC Region origin ASes present in the Internet Routing Table: 1527
LACNIC Prefixes per ASN: 22.89
LACNIC Region origin ASes announcing only one prefix: 446
LACNIC Region transit ASes present in the Internet Routing Table: 267
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 92815872
Equivalent to 5 /8s, 136 /16s and 66 /24s
Percentage of available LACNIC address space announced: 61.5
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: 8556
Total AfriNIC prefixes after maximum aggregation: 2023
AfriNIC Deaggregation factor: 4.23
Prefixes being announced from the AfriNIC address blocks: 6635
Unique aggregates announced from the AfriNIC address blocks: 1978
AfriNIC Region origin ASes present in the Internet Routing Table: 495
AfriNIC Prefixes per ASN: 13.40
AfriNIC Region origin ASes announcing only one prefix: 156
AfriNIC Region transit ASes present in the Internet Routing Table: 109
Average AfriNIC Region AS path length visible: 3.3
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: 27582976
Equivalent to 1 /8s, 164 /16s and 226 /24s
Percentage of available AfriNIC address space announced: 41.1
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 1948 11121 665 Korea Telecom (KIX)
7545 1611 303 87 TPG Internet Pty Ltd
17974 1603 511 36 PT Telekomunikasi Indonesia
4755 1533 377 174 TATA Communications formerly
9829 1153 989 28 National Internet Backbone
9583 1092 80 500 Sify Limited
7552 987 1062 11 Vietel Corporation
4808 973 2009 278 CNCGROUP IP network China169
24560 964 343 218 Bharti Airtel Ltd., Telemedia
18101 955 135 150 Reliance Infocom Ltd Internet
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 3547 3814 224 BellSouth.net Inc.
7029 2370 1042 211 Windstream Communications Inc
18566 2094 382 176 Covad Communications Co.
1785 1847 680 122 PaeTec Communications, Inc.
4323 1623 1094 390 tw telecom holdings, inc.
20115 1595 1547 621 Charter Communications
22773 1461 2907 100 Cox Communications Inc.
30036 1401 253 670 Mediacom Communications Corp
19262 1395 4728 400 Verizon Online LLC
7018 1324 7063 869 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 1428 416 14 Corbina telecom
6830 647 1927 412 UPC Broadband
34984 595 110 183 BILISIM TELEKOM
20940 546 181 428 Akamai Technologies European
12479 545 628 51 France Telecom Espana SA
9116 541 326 31 Goldenlines main autonomous s
3320 507 8169 387 Deutsche Telekom AG
3292 482 2074 408 TDC Data Networks
8866 461 133 26 Bulgarian Telecommunication C
31148 406 22 114 FreeNet ISP
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 1699 314 156 Types of queries are: POCs, o
28573 1455 1043 79 Types of queries are: POCs, o
8151 1291 2918 342 Uninet S.A. de C.V.
7303 1236 751 171 Telecom Argentina S.A.
22047 580 322 17 Types of queries are: POCs, o
27947 580 72 85 Telconet S.A
6503 556 434 69 Axtel, S.A.B. de C.V.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 540 233 95 Types of queries are: POCs, o
11172 524 102 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
24863 797 146 33 LINKdotNET AS number
8452 652 446 12 TEDATA
15475 454 74 8 Nile Online
36992 285 415 21 Etisalat MISR
3741 281 939 230 The Internet Solution
15706 240 32 6 Sudatel Internet Exchange Aut
33776 239 13 8 Starcomms Nigeria Limited
6713 235 519 14 Itissalat Al-MAGHRIB
29571 218 17 13 Ci Telecom Autonomous system
12258 197 28 58 Vodacom Internet Company
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 3547 3814 224 BellSouth.net Inc.
7029 2370 1042 211 Windstream Communications Inc
18566 2094 382 176 Covad Communications Co.
4766 1948 11121 665 Korea Telecom (KIX)
1785 1847 680 122 PaeTec Communications, Inc.
10620 1699 314 156 Types of queries are: POCs, o
4323 1623 1094 390 tw telecom holdings, inc.
7545 1611 303 87 TPG Internet Pty Ltd
17974 1603 511 36 PT Telekomunikasi Indonesia
20115 1595 1547 621 Charter Communications
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 2370 2159 Windstream Communications Inc
18566 2094 1918 Covad Communications Co.
1785 1847 1725 PaeTec Communications, Inc.
17974 1603 1567 PT Telekomunikasi Indonesia
10620 1699 1543 Types of queries are: POCs, o
7545 1611 1524 TPG Internet Pty Ltd
8402 1428 1414 Corbina telecom
28573 1455 1376 Types of queries are: POCs, o
22773 1461 1361 Cox Communications Inc.
4755 1533 1359 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
128.0.0.0/16 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
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<<
50.118.0.0/17 32392 Hosting-Network GmbH
62.61.220.0/24 24974 Tachyon Europe BV
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
/13:465 /14:807 /15:1418 /16:11985 /17:6039 /18:10033
/19:20054 /20:27505 /21:27629 /22:36872 /23:34910 /24:196323
/25:12 /26:21 /27:22 /28:155 /29:126 /30:63
/31:0 /32:128
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2186 3547 BellSouth.net Inc.
18566 2044 2094 Covad Communications Co.
7029 2022 2370 Windstream Communications Inc
10620 1594 1699 Types of queries are: POCs, o
8402 1403 1428 Corbina telecom
30036 1362 1401 Mediacom Communications Corp
11492 1117 1154 CABLE ONE, INC.
1785 1057 1847 PaeTec Communications, Inc.
7011 1051 1169 Frontier Communications of Am
22773 949 1461 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:416 2:473 4:15 5:1 6:3 8:357
12:1955 13:1 14:523 15:11 16:3 17:7
20:9 23:58 24:1678 27:1005 31:671 32:60
33:2 34:2 36:4 38:753 40:110 41:2713
42:55 44:3 46:1024 47:3 49:296 50:443
52:13 55:5 56:2 57:43 58:856 59:491
60:358 61:1013 62:1086 63:1959 64:4018 65:2300
66:4266 67:2003 68:1162 69:3183 70:897 71:385
72:1802 74:2603 75:388 76:320 77:963 78:872
79:478 80:1130 81:844 82:525 83:529 84:620
85:1153 86:405 87:978 88:357 89:1594 90:235
91:4256 92:536 93:1534 94:1301 95:1066 96:422
97:286 98:936 99:37 101:105 103:424 106:7
107:84 108:72 109:1150 110:639 111:782 112:334
113:466 114:608 115:674 116:863 117:696 118:868
119:1214 120:340 121:678 122:1559 123:1010 124:1294
125:1302 128:211 129:181 130:158 131:624 132:140
133:21 134:213 135:51 136:210 137:139 138:286
139:120 140:465 141:316 142:371 143:406 144:488
145:64 146:459 147:220 148:618 149:266 150:164
151:194 152:445 153:178 154:6 155:385 156:205
157:329 158:155 159:415 160:332 161:204 162:368
163:163 164:507 165:367 166:540 167:441 168:812
169:144 170:880 171:87 172:4 173:1709 174:679
175:401 176:277 177:369 178:1083 180:1133 181:38
182:641 183:213 184:387 185:1 186:1328 187:773
188:1057 189:1146 190:5146 192:5880 193:5049 194:3558
195:3110 196:1249 197:168 198:3572 199:4139 200:5443
201:1682 202:8254 203:8397 204:4239 205:2351 206:2585
207:2752 208:4025 209:3553 210:2643 211:1448 212:2099
213:1782 214:809 215:95 216:4903 217:1604 218:555
219:337 220:1214 221:501 222:296 223:265
End of report
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