Routing Table Report 08:00 +10GMT Mon 14 Feb, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 341376
Prefixes after maximum aggregation: 155125
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 170930
Total ASes present in the Internet Routing Table: 35709
Prefixes per ASN: 9.56
Origin-only ASes present in the Internet Routing Table: 30907
Origin ASes announcing only one prefix: 14974
Transit ASes present in the Internet Routing Table: 4802
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: 1336
Unregistered ASNs in the Routing Table: 260
Number of 32-bit ASNs allocated by the RIRs: 1117
Prefixes from 32-bit ASNs in the Routing Table: 1671
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 196
Number of addresses announced to Internet: 2410760704
Equivalent to 143 /8s, 177 /16s and 74 /24s
Percentage of available address space announced: 65.0
Percentage of allocated address space announced: 65.0
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: 139812
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 81888
Total APNIC prefixes after maximum aggregation: 27840
APNIC Deaggregation factor: 2.94
Prefixes being announced from the APNIC address blocks: 79514
Unique aggregates announced from the APNIC address blocks: 35689
APNIC Region origin ASes present in the Internet Routing Table: 4264
APNIC Prefixes per ASN: 18.65
APNIC Region origin ASes announcing only one prefix: 1214
APNIC Region transit ASes present in the Internet Routing Table: 658
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 26
Number of APNIC addresses announced to Internet: 588756224
Equivalent to 35 /8s, 23 /16s and 181 /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: 136291
Total ARIN prefixes after maximum aggregation: 69763
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 109202
Unique aggregates announced from the ARIN address blocks: 44878
ARIN Region origin ASes present in the Internet Routing Table: 14123
ARIN Prefixes per ASN: 7.73
ARIN Region origin ASes announcing only one prefix: 5401
ARIN Region transit ASes present in the Internet Routing Table: 1385
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 786596352
Equivalent to 46 /8s, 226 /16s and 130 /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: 82339
Total RIPE prefixes after maximum aggregation: 46468
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 75589
Unique aggregates announced from the RIPE address blocks: 48899
RIPE Region origin ASes present in the Internet Routing Table: 15303
RIPE Prefixes per ASN: 4.94
RIPE Region origin ASes announcing only one prefix: 7785
RIPE Region transit ASes present in the Internet Routing Table: 2358
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 459198208
Equivalent to 27 /8s, 94 /16s and 207 /24s
Percentage of available RIPE address space announced: 74.0
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: 31135
Total LACNIC prefixes after maximum aggregation: 7242
LACNIC Deaggregation factor: 4.30
Prefixes being announced from the LACNIC address blocks: 30056
Unique aggregates announced from the LACNIC address blocks: 15937
LACNIC Region origin ASes present in the Internet Routing Table: 1418
LACNIC Prefixes per ASN: 21.20
LACNIC Region origin ASes announcing only one prefix: 442
LACNIC Region transit ASes present in the Internet Routing Table: 246
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 80661248
Equivalent to 4 /8s, 206 /16s and 203 /24s
Percentage of available LACNIC address space announced: 53.4
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: 7366
Total AfriNIC prefixes after maximum aggregation: 1816
AfriNIC Deaggregation factor: 4.06
Prefixes being announced from the AfriNIC address blocks: 5766
Unique aggregates announced from the AfriNIC address blocks: 1827
AfriNIC Region origin ASes present in the Internet Routing Table: 434
AfriNIC Prefixes per ASN: 13.29
AfriNIC Region origin ASes announcing only one prefix: 132
AfriNIC Region transit ASes present in the Internet Routing Table: 94
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 21831424
Equivalent to 1 /8s, 77 /16s and 31 /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 1779 9485 523 Korea Telecom (KIX)
7545 1625 301 84 TPG Internet Pty Ltd
4755 1412 637 162 TATA Communications formerly
17974 1397 459 29 PT Telekomunikasi Indonesia
24560 1109 323 181 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 927 117 142 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 3701 3855 263 BellSouth.net Inc.
4323 2624 1125 404 tw telecom holdings, inc.
19262 1842 4951 283 Verizon Online LLC
1785 1788 697 131 PaeTec Communications, Inc.
20115 1528 1534 646 Charter Communications
6478 1516 298 48 AT&T Services, Inc.
7018 1373 6708 890 AT&T Services, Inc.
2386 1299 554 936 AT&T Data Communications Serv
11492 1282 236 73 CABLE ONE, INC.
18566 1279 310 103 Covad Communications Co.
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
9198 465 266 14 Kazakhtelecom Data Network Ad
34984 456 97 137 BILISIM TELEKOM
3292 445 1996 387 TDC Data Networks
8866 440 133 23 Bulgarian Telecommunication C
8551 405 355 38 Bezeq International
20940 404 94 311 Akamai Technologies European
3320 403 7617 352 Deutsche Telekom AG
702 400 1803 313 >>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 1371 255 165 Types of queries are: POCs, o
28573 1219 961 82 Types of queries are: POCs, o
8151 1208 2645 358 Uninet S.A. de C.V.
6503 1179 355 79 Axtel, S.A.B. de C.V.
7303 868 447 129 Telecom Argentina S.A.
14420 639 57 93 CORPORACION NACIONAL DE TELEC
22047 543 310 15 Types of queries are: POCs, o
3816 507 220 94 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 725 445 11 TEDATA
36992 589 305 17 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 218 78 10 RAYA Telecom - Egypt
6713 205 199 12 Itissalat Al-MAGHRIB
15475 194 56 9 Nile Online
33776 194 12 15 Starcomms Nigeria Limited
29571 193 19 11 Ci Telecom Autonomous system
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 3701 3855 263 BellSouth.net Inc.
4323 2624 1125 404 tw telecom holdings, inc.
19262 1842 4951 283 Verizon Online LLC
1785 1788 697 131 PaeTec Communications, Inc.
4766 1779 9485 523 Korea Telecom (KIX)
23456 1671 422 943 32-bit ASN transition
7545 1625 301 84 TPG Internet Pty Ltd
20115 1528 1534 646 Charter Communications
6478 1516 298 48 AT&T Services, Inc.
4755 1412 637 162 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 2624 2220 tw telecom holdings, inc.
1785 1788 1657 PaeTec Communications, Inc.
19262 1842 1559 Verizon Online LLC
7545 1625 1541 TPG Internet Pty Ltd
6478 1516 1468 AT&T Services, Inc.
17974 1397 1368 PT Telekomunikasi Indonesia
4766 1779 1256 Korea Telecom (KIX)
4755 1412 1250 TATA Communications formerly
11492 1282 1209 CABLE ONE, INC.
10620 1371 1206 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 *
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
/13:443 /14:763 /15:1363 /16:11453 /17:5625 /18:9296
/19:18919 /20:24354 /21:24693 /22:32770 /23:31445 /24:179446
/25:11 /26:17 /27:25 /28:157 /29:95 /30:42
/31:0 /32:113
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2282 3701 BellSouth.net Inc.
6478 1470 1516 AT&T Services, Inc.
4323 1412 2624 tw telecom holdings, inc.
10620 1262 1371 Types of queries are: POCs, o
18566 1257 1279 Covad Communications Co.
11492 1239 1282 CABLE ONE, INC.
7011 1060 1163 Frontier Communications of Am
1785 1054 1788 PaeTec Communications, Inc.
23456 976 1671 32-bit ASN transition
6503 956 1179 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)
----------------------------------------------
1:176 2:44 4:13 5:1 8:330 12:2028
13:1 14:391 15:15 16:3 17:8 20:9
23:1 24:1483 27:578 32:56 33:5 34:2
37:1 38:699 40:101 41:2244 44:3 46:633
47:5 49:144 50:90 52:12 55:5 56:2
57:29 58:749 59:475 60:389 61:1018 62:1070
63:1936 64:3756 65:2353 66:4156 67:1763 68:1026
69:2897 70:737 71:400 72:1986 73:1 74:2320
75:292 76:346 77:863 78:702 79:448 80:1045
81:812 82:544 83:468 84:652 85:1052 86:557
87:754 88:355 89:1585 90:156 91:3467 92:496
93:1044 94:1198 95:755 96:423 97:251 98:789
99:33 101:27 107:3 108:88 109:952 110:470
111:687 112:303 113:361 114:479 115:636 116:918
117:672 118:658 119:1011 120:237 121:679 122:1634
123:1061 124:1252 125:1221 128:212 129:147 130:166
131:566 132:102 133:20 134:210 135:49 136:213
137:144 138:291 139:118 140:470 141:196 142:341
143:381 144:484 145:51 146:425 147:197 148:617
149:270 150:154 151:230 152:303 153:179 154:2
155:350 156:173 157:311 158:129 159:373 160:314
161:195 162:273 163:149 164:486 165:337 166:499
167:422 168:737 169:148 170:747 171:66 172:2
173:1298 174:519 175:315 176:1 177:4 178:757
180:793 182:338 183:250 184:211 186:992 187:822
188:990 189:1043 190:4348 192:5750 193:4789 194:3489
195:2944 196:1178 197:3 198:3493 199:3789 200:5526
201:1575 202:8040 203:8340 204:4038 205:2312 206:2527
207:3005 208:3896 209:3467 210:2601 211:1328 212:1895
213:1728 214:756 215:62 216:4861 217:1614 218:520
219:374 220:1195 221:433 222:315 223:93
End of report
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