Routing Table Report 08:00 +10GMT Thu 14 Apr, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 347974
Prefixes after maximum aggregation: 158269
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 175084
Total ASes present in the Internet Routing Table: 36131
Prefixes per ASN: 9.63
Origin-only ASes present in the Internet Routing Table: 31243
Origin ASes announcing only one prefix: 15049
Transit ASes present in the Internet Routing Table: 4888
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: 1963
Unregistered ASNs in the Routing Table: 359
Number of 32-bit ASNs allocated by the RIRs: 1286
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2177
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 160
Number of addresses announced to Internet: 2428382208
Equivalent to 144 /8s, 190 /16s and 44 /24s
Percentage of available address space announced: 65.5
Percentage of allocated address space announced: 65.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 90.5
Total number of prefixes smaller than registry allocations: 142638
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 83714
Total APNIC prefixes after maximum aggregation: 28459
APNIC Deaggregation factor: 2.94
Prefixes being announced from the APNIC address blocks: 81520
Unique aggregates announced from the APNIC address blocks: 36984
APNIC Region origin ASes present in the Internet Routing Table: 4353
APNIC Prefixes per ASN: 18.73
APNIC Region origin ASes announcing only one prefix: 1236
APNIC Region transit ASes present in the Internet Routing Table: 665
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 23
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 607979264
Equivalent to 36 /8s, 61 /16s and 7 /24s
Percentage of available APNIC address space announced: 77.1
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: 137651
Total ARIN prefixes after maximum aggregation: 70482
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 110531
Unique aggregates announced from the ARIN address blocks: 45175
ARIN Region origin ASes present in the Internet Routing Table: 14242
ARIN Prefixes per ASN: 7.76
ARIN Region origin ASes announcing only one prefix: 5454
ARIN Region transit ASes present in the Internet Routing Table: 1414
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: 797917440
Equivalent to 47 /8s, 143 /16s and 65 /24s
Percentage of available ARIN address space announced: 63.4
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: 83979
Total RIPE prefixes after maximum aggregation: 47662
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 77199
Unique aggregates announced from the RIPE address blocks: 50659
RIPE Region origin ASes present in the Internet Routing Table: 15495
RIPE Prefixes per ASN: 4.98
RIPE Region origin ASes announcing only one prefix: 7791
RIPE Region transit ASes present in the Internet Routing Table: 2400
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 466609664
Equivalent to 27 /8s, 207 /16s and 230 /24s
Percentage of available RIPE address space announced: 75.2
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: 32065
Total LACNIC prefixes after maximum aggregation: 7368
LACNIC Deaggregation factor: 4.35
Prefixes being announced from the LACNIC address blocks: 31161
Unique aggregates announced from the LACNIC address blocks: 16458
LACNIC Region origin ASes present in the Internet Routing Table: 1428
LACNIC Prefixes per ASN: 21.82
LACNIC Region origin ASes announcing only one prefix: 433
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 region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 81949184
Equivalent to 4 /8s, 226 /16s and 114 /24s
Percentage of available LACNIC address space announced: 54.3
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: 7654
Total AfriNIC prefixes after maximum aggregation: 1830
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 5990
Unique aggregates announced from the AfriNIC address blocks: 1884
AfriNIC Region origin ASes present in the Internet Routing Table: 445
AfriNIC Prefixes per ASN: 13.46
AfriNIC Region origin ASes announcing only one prefix: 135
AfriNIC Region transit ASes present in the Internet Routing Table: 100
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 22799104
Equivalent to 1 /8s, 91 /16s and 227 /24s
Percentage of available AfriNIC address space announced: 34.0
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 1875 9509 604 Korea Telecom (KIX)
7545 1496 300 80 TPG Internet Pty Ltd
17974 1473 472 35 PT Telekomunikasi Indonesia
4755 1444 638 165 TATA Communications formerly
24560 1137 322 203 Bharti Airtel Ltd., Telemedia
9583 1053 77 497 Sify Limited
9829 1007 870 50 National Internet Backbone
4808 949 2028 277 CNCGROUP IP network China169
17488 940 162 98 Hathway IP Over Cable Interne
18101 935 116 139 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 3662 3822 256 BellSouth.net Inc.
4323 2534 1106 397 tw telecom holdings, inc.
1785 1790 681 127 PaeTec Communications, Inc.
18566 1641 334 207 Covad Communications Co.
6478 1621 307 41 AT&T Services, Inc.
20115 1537 1552 641 Charter Communications
19262 1494 4949 297 Verizon Online LLC
7018 1362 6962 891 AT&T Services, Inc.
22773 1297 2865 84 Cox Communications Inc.
2386 1269 535 912 AT&T Data Communications Serv
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 541 326 30 Goldenlines main autonomous s
6830 515 1780 318 UPC Broadband
34984 508 98 185 BILISIM TELEKOM
29049 467 33 34 AzerSat LLC.
3292 455 2013 392 TDC Data Networks
8866 446 134 26 Bulgarian Telecommunication C
20940 446 129 342 Akamai Technologies European
3320 417 7607 363 Deutsche Telekom AG
8551 405 355 38 Bezeq International
12479 405 577 6 France Telecom Espana SA
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 1425 265 159 Types of queries are: POCs, o
28573 1247 972 86 Types of queries are: POCs, o
8151 1233 2667 364 Uninet S.A. de C.V.
6503 922 354 73 Axtel, S.A.B. de C.V.
7303 900 464 136 Telecom Argentina S.A.
14420 661 53 90 CORPORACION NACIONAL DE TELEC
22047 567 310 15 Types of queries are: POCs, o
3816 517 225 97 Types of queries are: POCs, o
11172 485 99 81 Alestra, S. de R.L. de C.V.
14117 484 38 42 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
8452 813 445 11 TEDATA
24863 774 147 37 LINKdotNET AS number
15475 427 90 8 Nile Online
36992 293 287 12 Etisalat MISR
3741 266 985 227 The Internet Solution
6713 235 215 13 Itissalat Al-MAGHRIB
33776 227 13 5 Starcomms Nigeria Limited
24835 222 78 10 RAYA Telecom - Egypt
29571 161 17 11 Ci Telecom Autonomous system
16637 147 441 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 3662 3822 256 BellSouth.net Inc.
4323 2534 1106 397 tw telecom holdings, inc.
23456 2177 639 1184 32-bit ASN transition
4766 1875 9509 604 Korea Telecom (KIX)
1785 1790 681 127 PaeTec Communications, Inc.
18566 1641 334 207 Covad Communications Co.
6478 1621 307 41 AT&T Services, Inc.
20115 1537 1552 641 Charter Communications
7545 1496 300 80 TPG Internet Pty Ltd
19262 1494 4949 297 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 2534 2137 tw telecom holdings, inc.
1785 1790 1663 PaeTec Communications, Inc.
6478 1621 1580 AT&T Services, Inc.
17974 1473 1438 PT Telekomunikasi Indonesia
18566 1641 1434 Covad Communications Co.
7545 1496 1416 TPG Internet Pty Ltd
4755 1444 1279 TATA Communications formerly
4766 1875 1271 Korea Telecom (KIX)
10620 1425 1266 Types of queries are: POCs, o
11492 1263 1248 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
45083 UNALLOCATED 1.45.0.0/16 4808 CNCGROUP IP network
45083 UNALLOCATED 1.45.92.0/22 4808 CNCGROUP IP network
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
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.
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
2.56.0.0/16 44559 E-Rent LLC
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
31.7.8.0/21 8676 PRTSystems
31.7.56.0/21 51852 Private Layer INC
31.133.24.0/21 51842 DSC.NET SRL
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 /10:26 /11:76 /12:219
/13:452 /14:772 /15:1376 /16:11573 /17:5724 /18:9400
/19:19220 /20:25033 /21:25423 /22:33440 /23:32163 /24:182582
/25:11 /26:16 /27:24 /28:158 /29:92 /30:48
/31:0 /32:114
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2258 3662 BellSouth.net Inc.
18566 1619 1641 Covad Communications Co.
6478 1575 1621 AT&T Services, Inc.
4323 1354 2534 tw telecom holdings, inc.
10620 1315 1425 Types of queries are: POCs, o
11492 1212 1263 CABLE ONE, INC.
23456 1129 2177 32-bit ASN transition
7011 1062 1161 Frontier Communications of Am
1785 1057 1790 PaeTec Communications, Inc.
22773 841 1297 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:253 2:58 4:14 5:1 8:349 12:1992
13:1 14:423 15:15 16:3 17:8 20:9
23:5 24:1605 27:713 31:220 32:55 33:2
34:2 37:1 38:759 39:1 40:101 41:2340
42:1 44:3 46:825 47:4 49:173 50:165
52:13 55:5 56:2 57:29 58:795 59:480
60:385 61:1062 62:1001 63:1915 64:3862 65:2327
66:4309 67:1803 68:1075 69:2943 70:698 71:344
72:1902 73:1 74:2333 75:284 76:337 77:852
78:690 79:460 80:1072 81:828 82:505 83:458
84:646 85:1060 86:564 87:770 88:336 89:1580
90:180 91:3701 92:515 93:1060 94:1260 95:781
96:445 97:250 98:817 99:35 101:53 103:1
106:2 107:4 108:78 109:947 110:533 111:683
112:314 113:386 114:504 115:672 116:912 117:655
118:763 119:1127 120:287 121:648 122:1629 123:1045
124:1222 125:1249 128:213 129:159 130:167 131:562
132:103 133:20 134:209 135:49 136:210 137:139
138:300 139:101 140:465 141:174 142:359 143:390
144:479 145:53 146:439 147:205 148:586 149:233
150:163 151:187 152:304 153:180 154:2 155:364
156:186 157:325 158:132 159:373 160:314 161:235
162:273 163:154 164:490 165:348 166:514 167:419
168:720 169:153 170:775 171:75 172:1 173:1257
174:529 175:341 177:71 178:838 180:798 181:7
182:408 183:197 184:242 185:1 186:1127 187:830
188:934 189:1005 190:4827 192:5729 193:4803 194:3457
195:2956 196:1207 197:16 198:3510 199:3877 200:5529
201:1490 202:8133 203:8306 204:4049 205:2304 206:2551
207:2954 208:3928 209:3472 210:2650 211:1352 212:1996
213:1722 214:728 215:67 216:4847 217:1657 218:544
219:382 220:1189 221:457 222:305 223:116
End of report
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