Routing Table Report 08:00 +10GMT Wed 29 Jun, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 356442
Prefixes after maximum aggregation: 162330
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 179671
Total ASes present in the Internet Routing Table: 36659
Prefixes per ASN: 9.72
Origin-only ASes present in the Internet Routing Table: 31624
Origin ASes announcing only one prefix: 15231
Transit ASes present in the Internet Routing Table: 5035
Transit-only ASes present in the Internet Routing Table: 118
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 27
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 2199
Unregistered ASNs in the Routing Table: 556
Number of 32-bit ASNs allocated by the RIRs: 1502
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2746
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 134
Number of addresses announced to Internet: 2491084544
Equivalent to 148 /8s, 122 /16s and 239 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.0
Total number of prefixes smaller than registry allocations: 146970
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85591
Total APNIC prefixes after maximum aggregation: 28894
APNIC Deaggregation factor: 2.96
Prefixes being announced from the APNIC address blocks: 83266
Unique aggregates announced from the APNIC address blocks: 37150
APNIC Region origin ASes present in the Internet Routing Table: 4449
APNIC Prefixes per ASN: 18.72
APNIC Region origin ASes announcing only one prefix: 1266
APNIC Region transit ASes present in the Internet Routing Table: 678
Average APNIC Region AS path length visible: 4.1
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: 619397632
Equivalent to 36 /8s, 235 /16s and 66 /24s
Percentage of available APNIC address space announced: 78.6
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
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: 140013
Total ARIN prefixes after maximum aggregation: 71961
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 112268
Unique aggregates announced from the ARIN address blocks: 46573
ARIN Region origin ASes present in the Internet Routing Table: 14375
ARIN Prefixes per ASN: 7.81
ARIN Region origin ASes announcing only one prefix: 5512
ARIN Region transit ASes present in the Internet Routing Table: 1454
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 24
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 802592768
Equivalent to 47 /8s, 214 /16s and 152 /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: 86527
Total RIPE prefixes after maximum aggregation: 48930
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 79883
Unique aggregates announced from the RIPE address blocks: 52601
RIPE Region origin ASes present in the Internet Routing Table: 15744
RIPE Prefixes per ASN: 5.07
RIPE Region origin ASes announcing only one prefix: 7865
RIPE Region transit ASes present in the Internet Routing Table: 2468
Average RIPE Region AS path length visible: 3.6
Max RIPE Region AS path length visible: 27
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 478248192
Equivalent to 28 /8s, 129 /16s and 125 /24s
Percentage of available RIPE address space announced: 77.0
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: 32515
Total LACNIC prefixes after maximum aggregation: 7453
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 31940
Unique aggregates announced from the LACNIC address blocks: 16925
LACNIC Region origin ASes present in the Internet Routing Table: 1457
LACNIC Prefixes per ASN: 21.92
LACNIC Region origin ASes announcing only one prefix: 444
LACNIC Region transit ASes present in the Internet Routing Table: 252
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: 85624320
Equivalent to 5 /8s, 26 /16s and 134 /24s
Percentage of available LACNIC address space announced: 56.7
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: 8341
Total AfriNIC prefixes after maximum aggregation: 2018
AfriNIC Deaggregation factor: 4.13
Prefixes being announced from the AfriNIC address blocks: 6469
Unique aggregates announced from the AfriNIC address blocks: 1984
AfriNIC Region origin ASes present in the Internet Routing Table: 466
AfriNIC Prefixes per ASN: 13.88
AfriNIC Region origin ASes announcing only one prefix: 144
AfriNIC Region transit ASes present in the Internet Routing Table: 102
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: 24303872
Equivalent to 1 /8s, 114 /16s and 217 /24s
Percentage of available AfriNIC address space announced: 36.2
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 1901 9492 623 Korea Telecom (KIX)
17974 1576 461 44 PT Telekomunikasi Indonesia
7545 1540 301 83 TPG Internet Pty Ltd
4755 1487 375 166 TATA Communications formerly
24560 1153 336 187 Bharti Airtel Ltd., Telemedia
9583 1053 77 503 Sify Limited
9829 1052 886 62 National Internet Backbone
17488 955 185 103 Hathway IP Over Cable Interne
4808 951 2007 278 CNCGROUP IP network China169
18101 934 116 140 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 3618 3819 245 BellSouth.net Inc.
18566 1912 365 240 Covad Communications Co.
1785 1802 681 122 PaeTec Communications, Inc.
4323 1661 1098 400 tw telecom holdings, inc.
20115 1590 1531 635 Charter Communications
6478 1502 276 524 AT&T Services, Inc.
19262 1451 4806 371 Verizon Online LLC
7029 1406 1031 207 Windstream Communications Inc
7018 1375 7086 906 AT&T Services, Inc.
22773 1344 2897 87 Cox Communications 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
9116 540 326 31 Goldenlines main autonomous s
34984 534 106 185 BILISIM TELEKOM
6830 513 1780 319 UPC Broadband
3292 469 2080 404 TDC Data Networks
20940 467 137 360 Akamai Technologies European
29049 446 33 46 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
12479 438 593 7 France Telecom Espana SA
3320 419 8151 366 Deutsche Telekom AG
8551 405 355 38 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 1532 281 157 Types of queries are: POCs, o
8151 1255 2724 355 Uninet S.A. de C.V.
28573 1254 993 78 Types of queries are: POCs, o
7303 966 506 157 Telecom Argentina S.A.
6503 732 354 74 Axtel, S.A.B. de C.V.
14420 684 55 83 CORPORACION NACIONAL DE TELEC
22047 576 322 17 Types of queries are: POCs, o
3816 533 231 93 Types of queries are: POCs, o
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 499 54 52 Telconet S.A
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 787 445 11 TEDATA
24863 768 147 35 LINKdotNET AS number
15475 524 74 8 Nile Online
36992 313 415 14 Etisalat MISR
3741 261 937 223 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 215 12 11 Starcomms Nigeria Limited
24835 211 78 10 RAYA Telecom - Egypt
29571 192 17 11 Ci Telecom Autonomous system
16637 149 441 87 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 3618 3819 245 BellSouth.net Inc.
23456 2746 681 1490 32-bit ASN transition
18566 1912 365 240 Covad Communications Co.
4766 1901 9492 623 Korea Telecom (KIX)
1785 1802 681 122 PaeTec Communications, Inc.
4323 1661 1098 400 tw telecom holdings, inc.
20115 1590 1531 635 Charter Communications
17974 1576 461 44 PT Telekomunikasi Indonesia
7545 1540 301 83 TPG Internet Pty Ltd
10620 1532 281 157 Types of queries are: POCs, o
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
1785 1802 1680 PaeTec Communications, Inc.
18566 1912 1672 Covad Communications Co.
17974 1576 1532 PT Telekomunikasi Indonesia
7545 1540 1457 TPG Internet Pty Ltd
10620 1532 1375 Types of queries are: POCs, o
4755 1487 1321 TATA Communications formerly
4766 1901 1278 Korea Telecom (KIX)
4323 1661 1261 tw telecom holdings, inc.
22773 1344 1257 Cox Communications Inc.
23456 2746 1256 32-bit ASN transition
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.
26973 UNALLOCATED 12.39.152.0/24 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
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 65535 Internet Assigned Numbers Aut
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
27.0.128.0/17 7514 Media EXchange, Inc.
41.190.32.0/23 31856 CABSAS
41.190.34.0/23 31856 CABSAS
41.190.36.0/23 31856 CABSAS
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 /8:22 /9:12 /10:28 /11:81 /12:231
/13:461 /14:799 /15:1397 /16:11943 /17:5847 /18:9682
/19:19521 /20:25848 /21:26049 /22:34318 /23:33119 /24:186596
/25:13 /26:17 /27:24 /28:157 /29:91 /30:55
/31:0 /32:131
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2223 3618 BellSouth.net Inc.
18566 1868 1912 Covad Communications Co.
6478 1469 1502 AT&T Services, Inc.
10620 1427 1532 Types of queries are: POCs, o
23456 1344 2746 32-bit ASN transition
11492 1088 1134 CABLE ONE, INC.
7029 1086 1406 Windstream Communications Inc
7011 1056 1157 Frontier Communications of Am
1785 1051 1802 PaeTec Communications, Inc.
22773 859 1344 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:314 2:52 4:16 5:1 6:3 8:337
9:1 12:1976 13:1 14:458 15:15 16:3
17:8 20:10 23:12 24:1653 27:803 31:480
32:59 33:4 34:2 36:4 37:1 38:735
39:3 40:103 41:2561 42:10 44:3 46:984
47:3 49:197 50:431 52:13 54:2 55:2
56:2 57:31 58:818 59:472 60:384 61:1022
62:1039 63:1933 64:3922 65:2282 66:3864 67:1903
68:1088 69:3018 70:754 71:392 72:1890 74:2380
75:318 76:339 77:891 78:705 79:470 80:1113
81:851 82:493 83:460 84:669 85:1071 86:549
87:758 88:337 89:1530 90:209 91:3889 92:537
93:1050 94:1320 95:842 96:440 97:254 98:887
99:36 101:72 103:94 106:9 107:17 108:70
109:1010 110:608 111:709 112:296 113:402 114:541
115:660 116:947 117:668 118:816 119:1128 120:307
121:648 122:1605 123:953 124:1263 125:1225 128:209
129:166 130:162 131:574 132:104 133:21 134:206
135:48 136:213 137:133 138:298 139:113 140:460
141:239 142:387 143:418 144:480 145:54 146:444
147:214 148:591 149:246 150:157 151:191 152:329
153:180 154:3 155:399 156:192 157:322 158:136
159:385 160:313 161:201 162:307 163:155 164:504
165:352 166:537 167:431 168:733 169:155 170:836
171:78 172:1 173:1630 174:607 175:359 176:141
177:151 178:984 180:882 181:19 182:471 183:224
184:308 185:1 186:1246 187:725 188:875 189:935
190:4892 192:5839 193:4960 194:3485 195:3031 196:1228
197:41 198:3535 199:3924 200:5471 201:1503 202:8134
203:8336 204:4131 205:2323 206:2597 207:2742 208:3943
209:3444 210:2593 211:1450 212:2103 213:1734 214:747
215:69 216:4900 217:1637 218:533 219:358 220:1197
221:475 222:311 223:175
End of report
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