Routing Table Report 08:00 +10GMT Tue 22 Mar, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 345628
Prefixes after maximum aggregation: 157091
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 173140
Total ASes present in the Internet Routing Table: 35944
Prefixes per ASN: 9.62
Origin-only ASes present in the Internet Routing Table: 31110
Origin ASes announcing only one prefix: 14978
Transit ASes present in the Internet Routing Table: 4834
Transit-only ASes present in the Internet Routing Table: 112
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 1832
Unregistered ASNs in the Routing Table: 318
Number of 32-bit ASNs allocated by the RIRs: 1213
Prefixes from 32-bit ASNs in the Routing Table: 1952
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 191
Number of addresses announced to Internet: 2405918208
Equivalent to 143 /8s, 103 /16s and 102 /24s
Percentage of available address space announced: 64.9
Percentage of allocated address space announced: 64.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 89.6
Total number of prefixes smaller than registry allocations: 141544
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 83410
Total APNIC prefixes after maximum aggregation: 28341
APNIC Deaggregation factor: 2.94
Prefixes being announced from the APNIC address blocks: 81131
Unique aggregates announced from the APNIC address blocks: 36405
APNIC Region origin ASes present in the Internet Routing Table: 4306
APNIC Prefixes per ASN: 18.84
APNIC Region origin ASes announcing only one prefix: 1223
APNIC Region transit ASes present in the Internet Routing Table: 647
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 599108352
Equivalent to 35 /8s, 181 /16s and 171 /24s
Percentage of available APNIC address space announced: 76.0
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: 137148
Total ARIN prefixes after maximum aggregation: 70262
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 109918
Unique aggregates announced from the ARIN address blocks: 45096
ARIN Region origin ASes present in the Internet Routing Table: 14184
ARIN Prefixes per ASN: 7.75
ARIN Region origin ASes announcing only one prefix: 5410
ARIN Region transit ASes present in the Internet Routing Table: 1401
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 797022720
Equivalent to 47 /8s, 129 /16s and 154 /24s
Percentage of available ARIN address space announced: 63.3
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: 83167
Total RIPE prefixes after maximum aggregation: 47175
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 76491
Unique aggregates announced from the RIPE address blocks: 49903
RIPE Region origin ASes present in the Internet Routing Table: 15427
RIPE Prefixes per ASN: 4.96
RIPE Region origin ASes announcing only one prefix: 7778
RIPE Region transit ASes present in the Internet Routing Table: 2389
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 464839936
Equivalent to 27 /8s, 180 /16s and 229 /24s
Percentage of available RIPE address space announced: 74.9
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: 31809
Total LACNIC prefixes after maximum aggregation: 7270
LACNIC Deaggregation factor: 4.38
Prefixes being announced from the LACNIC address blocks: 30859
Unique aggregates announced from the LACNIC address blocks: 16162
LACNIC Region origin ASes present in the Internet Routing Table: 1426
LACNIC Prefixes per ASN: 21.64
LACNIC Region origin ASes announcing only one prefix: 440
LACNIC Region transit ASes present in the Internet Routing Table: 250
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 81415168
Equivalent to 4 /8s, 218 /16s and 76 /24s
Percentage of available LACNIC address space announced: 53.9
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: 7463
Total AfriNIC prefixes after maximum aggregation: 1806
AfriNIC Deaggregation factor: 4.13
Prefixes being announced from the AfriNIC address blocks: 5865
Unique aggregates announced from the AfriNIC address blocks: 1801
AfriNIC Region origin ASes present in the Internet Routing Table: 434
AfriNIC Prefixes per ASN: 13.51
AfriNIC Region origin ASes announcing only one prefix: 127
AfriNIC Region transit ASes present in the Internet Routing Table: 93
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 22127360
Equivalent to 1 /8s, 81 /16s and 163 /24s
Percentage of available AfriNIC address space announced: 33.0
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 1869 9500 593 Korea Telecom (KIX)
7545 1549 301 83 TPG Internet Pty Ltd
4755 1478 653 161 TATA Communications formerly
17974 1444 472 35 PT Telekomunikasi Indonesia
24560 1134 324 187 Bharti Airtel Ltd., Telemedia
9583 1052 77 494 Sify Limited
9829 1000 868 53 National Internet Backbone
17488 935 162 96 Hathway IP Over Cable Interne
18101 935 116 139 Reliance Infocom Ltd Internet
4808 932 2031 270 CNCGROUP IP network China169
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 3674 3822 257 BellSouth.net Inc.
4323 2568 1109 403 tw telecom holdings, inc.
1785 1795 681 131 PaeTec Communications, Inc.
18566 1598 330 198 Covad Communications Co.
6478 1555 300 48 AT&T Services, Inc.
20115 1527 1536 645 Charter Communications
19262 1488 4939 299 Verizon Online LLC
7018 1382 6884 901 AT&T Services, Inc.
11492 1315 236 64 CABLE ONE, INC.
22773 1286 2865 80 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 542 328 31 Goldenlines main autonomous s
6830 513 1780 317 UPC Broadband
9198 472 267 15 Kazakhtelecom Data Network Ad
34984 455 95 205 BILISIM TELEKOM
3292 453 2013 391 TDC Data Networks
8866 443 133 24 Bulgarian Telecommunication C
20940 418 100 322 Akamai Technologies European
3320 405 7604 353 Deutsche Telekom AG
8551 405 355 38 Bezeq International
702 398 1803 312 >>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 1394 260 159 Types of queries are: POCs, o
28573 1230 965 82 Types of queries are: POCs, o
8151 1225 2679 370 Uninet S.A. de C.V.
6503 1175 354 74 Axtel, S.A.B. de C.V.
7303 900 464 136 Telecom Argentina S.A.
14420 638 52 91 CORPORACION NACIONAL DE TELEC
22047 544 310 15 Types of queries are: POCs, o
3816 516 225 96 Types of queries are: POCs, o
13489 491 213 106 EPM Telecomunicaciones S.A. E
11172 485 99 81 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 797 445 11 TEDATA
24863 770 147 37 LINKdotNET AS number
15475 424 90 8 Nile Online
36992 292 271 14 Etisalat MISR
3741 266 987 228 The Internet Solution
24835 232 78 10 RAYA Telecom - Egypt
33776 230 13 5 Starcomms Nigeria Limited
6713 207 199 11 Itissalat Al-MAGHRIB
29571 192 17 11 Ci Telecom Autonomous system
16637 148 441 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 3674 3822 257 BellSouth.net Inc.
4323 2568 1109 403 tw telecom holdings, inc.
23456 1952 479 1070 32-bit ASN transition
4766 1869 9500 593 Korea Telecom (KIX)
1785 1795 681 131 PaeTec Communications, Inc.
18566 1598 330 198 Covad Communications Co.
6478 1555 300 48 AT&T Services, Inc.
7545 1549 301 83 TPG Internet Pty Ltd
20115 1527 1536 645 Charter Communications
19262 1488 4939 299 Verizon Online LLC
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 2568 2165 tw telecom holdings, inc.
1785 1795 1664 PaeTec Communications, Inc.
6478 1555 1507 AT&T Services, Inc.
7545 1549 1466 TPG Internet Pty Ltd
17974 1444 1409 PT Telekomunikasi Indonesia
18566 1598 1400 Covad Communications Co.
4755 1478 1317 TATA Communications formerly
4766 1869 1276 Korea Telecom (KIX)
11492 1315 1251 CABLE ONE, INC.
10620 1394 1235 Types of queries are: POCs, o
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
41.57.192.0/18 22750 BCSNET
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
45.127.0.0/16 13767 DataBank Holdings, Ltd.
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 /9:11 /10:26 /11:74 /12:218
/13:446 /14:764 /15:1370 /16:11538 /17:5654 /18:9372
/19:19130 /20:24718 /21:25080 /22:33435 /23:31830 /24:181476
/25:11 /26:17 /27:24 /28:156 /29:97 /30:50
/31:0 /32:111
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2268 3674 BellSouth.net Inc.
18566 1577 1598 Covad Communications Co.
6478 1509 1555 AT&T Services, Inc.
4323 1378 2568 tw telecom holdings, inc.
10620 1285 1394 Types of queries are: POCs, o
11492 1272 1315 CABLE ONE, INC.
23456 1074 1952 32-bit ASN transition
7011 1062 1162 Frontier Communications of Am
1785 1057 1795 PaeTec Communications, Inc.
6503 954 1175 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)
----------------------------------------------
1:275 2:54 4:14 5:1 8:342 12:2006
13:1 14:400 15:15 16:3 17:8 20:9
23:3 24:1561 27:678 31:5 32:56 33:3
34:2 37:1 38:743 39:1 40:101 41:2273
44:3 46:723 47:4 49:158 50:109 52:13
55:2 56:2 57:24 58:763 59:490 60:384
61:1060 62:998 63:1916 64:3842 65:2352 66:4360
67:1780 68:1076 69:2894 70:698 71:359 72:1896
73:1 74:2322 75:284 76:345 77:846 78:700
79:457 80:1086 81:808 82:516 83:467 84:646
85:1029 86:528 87:768 88:353 89:1550 90:174
91:3646 92:509 93:1046 94:1230 95:783 96:443
97:252 98:802 99:34 101:45 106:1 107:4
108:72 109:913 110:520 111:696 112:308 113:376
114:485 115:707 116:937 117:655 118:711 119:1078
120:254 121:743 122:1606 123:1038 124:1301 125:1247
128:213 129:165 130:166 131:558 132:100 133:20
134:208 135:49 136:209 137:143 138:299 139:111
140:461 141:173 142:360 143:388 144:474 145:52
146:433 147:192 148:602 149:274 150:153 151:187
152:296 153:180 154:2 155:388 156:181 157:318
158:132 159:365 160:313 161:199 162:277 163:155
164:493 165:349 166:500 167:412 168:716 169:155
170:778 171:69 172:2 173:1255 174:521 175:332
177:42 178:817 180:777 181:4 182:389 183:240
184:227 185:1 186:1066 187:873 188:917 189:1016
190:4733 192:5721 193:4786 194:3489 195:2947 196:1189
197:15 198:3486 199:3850 200:5518 201:1572 202:8149
203:8344 204:4034 205:2294 206:2547 207:2949 208:3897
209:3456 210:2646 211:1347 212:1966 213:1712 214:753
215:66 216:4853 217:1646 218:546 219:377 220:1192
221:453 222:316 223:97
End of report
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