Routing Table Report 08:00 +10GMT Wed 16 Feb, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 341008
Prefixes after maximum aggregation: 155250
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 170799
Total ASes present in the Internet Routing Table: 35672
Prefixes per ASN: 9.56
Origin-only ASes present in the Internet Routing Table: 30865
Origin ASes announcing only one prefix: 14958
Transit ASes present in the Internet Routing Table: 4807
Transit-only ASes present in the Internet Routing Table: 107
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 26
Max AS path prepend of ASN (22394) 20
Prefixes from unregistered ASNs in the Routing Table: 1333
Unregistered ASNs in the Routing Table: 262
Number of 32-bit ASNs allocated by the RIRs: 1117
Prefixes from 32-bit ASNs in the Routing Table: 1699
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 193
Number of addresses announced to Internet: 2411676160
Equivalent to 143 /8s, 191 /16s and 66 /24s
Percentage of available address space announced: 65.1
Percentage of allocated address space announced: 65.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 87.9
Total number of prefixes smaller than registry allocations: 139901
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 81405
Total APNIC prefixes after maximum aggregation: 27833
APNIC Deaggregation factor: 2.92
Prefixes being announced from the APNIC address blocks: 79023
Unique aggregates announced from the APNIC address blocks: 35546
APNIC Region origin ASes present in the Internet Routing Table: 4239
APNIC Prefixes per ASN: 18.64
APNIC Region origin ASes announcing only one prefix: 1214
APNIC Region transit ASes present in the Internet Routing Table: 659
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 26
Number of APNIC addresses announced to Internet: 588717824
Equivalent to 35 /8s, 23 /16s and 31 /24s
Percentage of available APNIC address space announced: 74.7
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: 136473
Total ARIN prefixes after maximum aggregation: 69812
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 109351
Unique aggregates announced from the ARIN address blocks: 44887
ARIN Region origin ASes present in the Internet Routing Table: 14123
ARIN Prefixes per ASN: 7.74
ARIN Region origin ASes announcing only one prefix: 5392
ARIN Region transit ASes present in the Internet Routing Table: 1386
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 786656512
Equivalent to 46 /8s, 227 /16s and 109 /24s
Percentage of available ARIN address space announced: 62.5
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: 82169
Total RIPE prefixes after maximum aggregation: 46463
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 75505
Unique aggregates announced from the RIPE address blocks: 48856
RIPE Region origin ASes present in the Internet Routing Table: 15292
RIPE Prefixes per ASN: 4.94
RIPE Region origin ASes announcing only one prefix: 7780
RIPE Region transit ASes present in the Internet Routing Table: 2359
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 459898368
Equivalent to 27 /8s, 105 /16s and 126 /24s
Percentage of available RIPE address space announced: 74.1
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: 31160
Total LACNIC prefixes after maximum aggregation: 7302
LACNIC Deaggregation factor: 4.27
Prefixes being announced from the LACNIC address blocks: 30100
Unique aggregates announced from the LACNIC address blocks: 15940
LACNIC Region origin ASes present in the Internet Routing Table: 1418
LACNIC Prefixes per ASN: 21.23
LACNIC Region origin ASes announcing only one prefix: 443
LACNIC Region transit ASes present in the Internet Routing Table: 248
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 80760576
Equivalent to 4 /8s, 208 /16s and 79 /24s
Percentage of available LACNIC address space announced: 53.5
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: 7423
Total AfriNIC prefixes after maximum aggregation: 1812
AfriNIC Deaggregation factor: 4.10
Prefixes being announced from the AfriNIC address blocks: 5820
Unique aggregates announced from the AfriNIC address blocks: 1828
AfriNIC Region origin ASes present in the Internet Routing Table: 433
AfriNIC Prefixes per ASN: 13.44
AfriNIC Region origin ASes announcing only one prefix: 129
AfriNIC Region transit ASes present in the Internet Routing Table: 95
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 21839872
Equivalent to 1 /8s, 77 /16s and 64 /24s
Percentage of available AfriNIC address space announced: 32.5
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 1800 9486 541 Korea Telecom (KIX)
7545 1627 301 84 TPG Internet Pty Ltd
4755 1413 637 163 TATA Communications formerly
17974 1402 459 29 PT Telekomunikasi Indonesia
24560 1111 323 182 Bharti Airtel Ltd., Telemedia
9583 1042 76 487 Sify Limited
17488 952 162 104 Hathway IP Over Cable Interne
4808 939 2034 271 CNCGROUP IP network China169
18101 928 117 141 Reliance Infocom Ltd Internet
9829 898 763 42 National Internet Backbone
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 3698 3855 262 BellSouth.net Inc.
4323 2626 1125 406 tw telecom holdings, inc.
19262 1843 4955 283 Verizon Online LLC
1785 1787 697 131 PaeTec Communications, Inc.
20115 1527 1534 646 Charter Communications
6478 1510 296 75 AT&T Services, Inc.
7018 1375 6708 891 AT&T Services, Inc.
2386 1300 554 937 AT&T Data Communications Serv
18566 1279 310 103 Covad Communications Co.
11492 1274 236 75 CABLE ONE, 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 542 328 31 Goldenlines main autonomous s
6830 509 1764 315 UPC Broadband
34984 460 97 140 BILISIM TELEKOM
9198 449 266 14 Kazakhtelecom Data Network Ad
3292 445 1996 387 TDC Data Networks
8866 440 133 23 Bulgarian Telecommunication C
20940 408 95 315 Akamai Technologies European
8551 405 355 38 Bezeq International
3320 403 7617 352 Deutsche Telekom AG
702 401 1803 314 >>UNKNOWN<<
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 1373 255 166 Types of queries are: POCs, o
28573 1217 961 82 Types of queries are: POCs, o
8151 1210 2653 355 Uninet S.A. de C.V.
6503 1174 354 74 Axtel, S.A.B. de C.V.
7303 876 463 130 Telecom Argentina S.A.
14420 637 56 91 CORPORACION NACIONAL DE TELEC
22047 543 310 15 Types of queries are: POCs, o
3816 507 221 95 Types of queries are: POCs, o
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 462 35 37 Telefonica del Sur 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
24863 760 147 37 LINKdotNET AS number
8452 747 445 11 TEDATA
36992 588 305 17 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 219 78 10 RAYA Telecom - Egypt
6713 205 199 12 Itissalat Al-MAGHRIB
33776 194 12 15 Starcomms Nigeria Limited
29571 193 19 11 Ci Telecom Autonomous system
15475 189 56 9 Nile Online
16637 148 422 84 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 3698 3855 262 BellSouth.net Inc.
4323 2626 1125 406 tw telecom holdings, inc.
19262 1843 4955 283 Verizon Online LLC
4766 1800 9486 541 Korea Telecom (KIX)
1785 1787 697 131 PaeTec Communications, Inc.
23456 1699 428 959 32-bit ASN transition
7545 1627 301 84 TPG Internet Pty Ltd
20115 1527 1534 646 Charter Communications
6478 1510 296 75 AT&T Services, Inc.
4755 1413 637 163 TATA Communications formerly
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2626 2220 tw telecom holdings, inc.
1785 1787 1656 PaeTec Communications, Inc.
19262 1843 1560 Verizon Online LLC
7545 1627 1543 TPG Internet Pty Ltd
6478 1510 1435 AT&T Services, Inc.
17974 1402 1373 PT Telekomunikasi Indonesia
4766 1800 1259 Korea Telecom (KIX)
4755 1413 1250 TATA Communications formerly
10620 1373 1207 Types of queries are: POCs, o
11492 1274 1199 CABLE ONE, INC.
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 *
16927 UNALLOCATED 12.0.252.0/23 7018 AT&T Services, Inc.
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
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T Services, Inc.
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.
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 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
5.0.0.0/16 12654 RIPE NCC RIS Project
5.1.0.0/21 12654 RIPE NCC RIS Project
5.1.24.0/24 12654 RIPE NCC RIS Project
24.129.192.0/19 7922 Comcast Cable Communications,
37.0.0.0/16 12654 RIPE NCC RIS Project
37.1.0.0/21 12654 RIPE NCC RIS Project
37.1.24.0/24 12654 RIPE NCC RIS Project
39.0.0.0/8 237 Merit Network Inc.
41.57.192.0/18 22750 BCSNET
41.222.79.0/24 36938 >>UNKNOWN<<
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 /9:10 /10:26 /11:72 /12:216
/13:444 /14:763 /15:1362 /16:11463 /17:5622 /18:9281
/19:18926 /20:24362 /21:24693 /22:32728 /23:31443 /24:179121
/25:11 /26:17 /27:25 /28:155 /29:93 /30:43
/31:0 /32:110
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2281 3698 BellSouth.net Inc.
6478 1464 1510 AT&T Services, Inc.
4323 1414 2626 tw telecom holdings, inc.
10620 1264 1373 Types of queries are: POCs, o
18566 1257 1279 Covad Communications Co.
11492 1231 1274 CABLE ONE, INC.
7011 1060 1163 Frontier Communications of Am
1785 1054 1787 PaeTec Communications, Inc.
23456 992 1699 32-bit ASN transition
6503 956 1174 Axtel, S.A.B. de C.V.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:184 2:45 4:13 5:1 8:333 12:2031
13:1 14:393 15:15 16:3 17:8 20:9
23:1 24:1481 27:583 32:56 33:4 34:2
37:1 38:699 40:101 41:2318 44:3 46:591
47:4 49:143 50:92 52:12 55:6 56:2
57:29 58:746 59:474 60:389 61:1017 62:1061
63:1938 64:3758 65:2355 66:4154 67:1777 68:1027
69:2910 70:737 71:402 72:2011 73:1 74:2319
75:292 76:346 77:874 78:691 79:451 80:1049
81:818 82:527 83:482 84:638 85:1059 86:497
87:763 88:354 89:1576 90:156 91:3455 92:494
93:1044 94:1201 95:764 96:449 97:251 98:785
99:33 101:30 107:3 108:88 109:961 110:478
111:689 112:304 113:344 114:477 115:650 116:880
117:676 118:652 119:1002 120:236 121:680 122:1630
123:1051 124:1261 125:1233 128:214 129:151 130:166
131:565 132:102 133:20 134:210 135:49 136:212
137:143 138:292 139:116 140:470 141:203 142:342
143:383 144:484 145:51 146:425 147:211 148:620
149:273 150:154 151:230 152:303 153:180 154:2
155:349 156:173 157:313 158:129 159:373 160:313
161:197 162:273 163:149 164:486 165:331 166:503
167:421 168:737 169:149 170:749 171:69 172:2
173:1316 174:527 175:305 176:1 177:7 178:776
180:711 182:312 183:247 184:211 186:1003 187:823
188:883 189:1039 190:4366 192:5751 193:4796 194:3491
195:2927 196:1183 197:3 198:3492 199:3798 200:5547
201:1573 202:7885 203:8279 204:4024 205:2316 206:2534
207:3007 208:3895 209:3461 210:2565 211:1326 212:1899
213:1729 214:761 215:62 216:4863 217:1610 218:522
219:375 220:1188 221:425 222:314 223:92
End of report
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