Routing Table Report 08:00 +10GMT Fri 04 Mar, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 343678
Prefixes after maximum aggregation: 156409
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 171989
Total ASes present in the Internet Routing Table: 35827
Prefixes per ASN: 9.59
Origin-only ASes present in the Internet Routing Table: 30989
Origin ASes announcing only one prefix: 14938
Transit ASes present in the Internet Routing Table: 4838
Transit-only ASes present in the Internet Routing Table: 113
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 26
Max AS path prepend of ASN (23456) 20
Prefixes from unregistered ASNs in the Routing Table: 1356
Unregistered ASNs in the Routing Table: 283
Number of 32-bit ASNs allocated by the RIRs: 1163
Prefixes from 32-bit ASNs in the Routing Table: 1820
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 256
Number of addresses announced to Internet: 2470610176
Equivalent to 147 /8s, 66 /16s and 133 /24s
Percentage of available address space announced: 66.7
Percentage of allocated address space announced: 66.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 88.9
Total number of prefixes smaller than registry allocations: 140795
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 82733
Total APNIC prefixes after maximum aggregation: 28295
APNIC Deaggregation factor: 2.92
Prefixes being announced from the APNIC address blocks: 80333
Unique aggregates announced from the APNIC address blocks: 36064
APNIC Region origin ASes present in the Internet Routing Table: 4292
APNIC Prefixes per ASN: 18.72
APNIC Region origin ASes announcing only one prefix: 1217
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: 593510912
Equivalent to 35 /8s, 96 /16s and 66 /24s
Percentage of available APNIC address space announced: 75.3
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: 136843
Total ARIN prefixes after maximum aggregation: 70065
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 109594
Unique aggregates announced from the ARIN address blocks: 44911
ARIN Region origin ASes present in the Internet Routing Table: 14133
ARIN Prefixes per ASN: 7.75
ARIN Region origin ASes announcing only one prefix: 5381
ARIN Region transit ASes present in the Internet Routing Table: 1390
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 787375616
Equivalent to 46 /8s, 238 /16s and 102 /24s
Percentage of available ARIN address space announced: 62.6
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: 82652
Total RIPE prefixes after maximum aggregation: 46831
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 75945
Unique aggregates announced from the RIPE address blocks: 49294
RIPE Region origin ASes present in the Internet Routing Table: 15376
RIPE Prefixes per ASN: 4.94
RIPE Region origin ASes announcing only one prefix: 7777
RIPE Region transit ASes present in the Internet Routing Table: 2382
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 478575360
Equivalent to 28 /8s, 134 /16s and 123 /24s
Percentage of available RIPE address space announced: 77.1
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: 31417
Total LACNIC prefixes after maximum aggregation: 7268
LACNIC Deaggregation factor: 4.32
Prefixes being announced from the LACNIC address blocks: 30447
Unique aggregates announced from the LACNIC address blocks: 16082
LACNIC Region origin ASes present in the Internet Routing Table: 1422
LACNIC Prefixes per ASN: 21.41
LACNIC Region origin ASes announcing only one prefix: 436
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 addresses announced to Internet: 81106176
Equivalent to 4 /8s, 213 /16s and 149 /24s
Percentage of available LACNIC address space announced: 53.7
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: 7531
Total AfriNIC prefixes after maximum aggregation: 1815
AfriNIC Deaggregation factor: 4.15
Prefixes being announced from the AfriNIC address blocks: 5909
Unique aggregates announced from the AfriNIC address blocks: 1826
AfriNIC Region origin ASes present in the Internet Routing Table: 431
AfriNIC Prefixes per ASN: 13.71
AfriNIC Region origin ASes announcing only one prefix: 127
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: 17
Number of AfriNIC addresses announced to Internet: 21897728
Equivalent to 1 /8s, 78 /16s and 34 /24s
Percentage of available AfriNIC address space announced: 32.6
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 1863 9493 590 Korea Telecom (KIX)
7545 1580 301 84 TPG Internet Pty Ltd
4755 1420 638 165 TATA Communications formerly
17974 1402 467 30 PT Telekomunikasi Indonesia
24560 1116 323 185 Bharti Airtel Ltd., Telemedia
9583 1044 76 487 Sify Limited
4808 940 2032 269 CNCGROUP IP network China169
17488 938 161 102 Hathway IP Over Cable Interne
18101 933 117 141 Reliance Infocom Ltd Internet
9829 895 761 45 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 3684 3855 261 BellSouth.net Inc.
4323 2585 1125 404 tw telecom holdings, inc.
19262 1835 4954 284 Verizon Online LLC
1785 1793 697 131 PaeTec Communications, Inc.
20115 1527 1534 650 Charter Communications
6478 1524 296 103 AT&T Services, Inc.
18566 1514 324 178 Covad Communications Co.
7018 1380 6740 903 AT&T Services, Inc.
2386 1297 538 940 AT&T Data Communications Serv
11492 1288 236 70 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 512 1780 318 UPC Broadband
9198 469 267 15 Kazakhtelecom Data Network Ad
34984 466 98 146 BILISIM TELEKOM
3292 447 1996 388 TDC Data Networks
8866 442 133 23 Bulgarian Telecommunication C
20940 419 99 323 Akamai Technologies European
3320 405 7604 353 Deutsche Telekom AG
8551 405 355 38 Bezeq International
702 401 1803 315 >>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 1383 257 166 Types of queries are: POCs, o
8151 1219 2679 357 Uninet S.A. de C.V.
28573 1207 961 83 Types of queries are: POCs, o
6503 1170 354 74 Axtel, S.A.B. de C.V.
7303 888 463 134 Telecom Argentina S.A.
14420 644 56 93 CORPORACION NACIONAL DE TELEC
22047 541 310 15 Types of queries are: POCs, o
3816 514 224 96 Types of queries are: POCs, o
7738 479 922 30 Telecomunicacoes da Bahia S.A
14117 467 36 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
8452 805 445 11 TEDATA
24863 764 147 37 LINKdotNET AS number
15475 440 90 10 Nile Online
36992 301 271 14 Etisalat MISR
3741 265 987 227 The Internet Solution
33776 230 13 5 Starcomms Nigeria Limited
24835 221 78 10 RAYA Telecom - Egypt
6713 211 199 12 Itissalat Al-MAGHRIB
29571 192 17 11 Ci Telecom Autonomous system
16637 147 439 88 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 3684 3855 261 BellSouth.net Inc.
4323 2585 1125 404 tw telecom holdings, inc.
4766 1863 9493 590 Korea Telecom (KIX)
19262 1835 4954 284 Verizon Online LLC
23456 1820 450 1015 32-bit ASN transition
1785 1793 697 131 PaeTec Communications, Inc.
7545 1580 301 84 TPG Internet Pty Ltd
20115 1527 1534 650 Charter Communications
6478 1524 296 103 AT&T Services, Inc.
18566 1514 324 178 Covad Communications Co.
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 2585 2181 tw telecom holdings, inc.
1785 1793 1662 PaeTec Communications, Inc.
19262 1835 1551 Verizon Online LLC
7545 1580 1496 TPG Internet Pty Ltd
6478 1524 1421 AT&T Services, Inc.
17974 1402 1372 PT Telekomunikasi Indonesia
18566 1514 1336 Covad Communications Co.
4766 1863 1273 Korea Telecom (KIX)
4755 1420 1255 TATA Communications formerly
11492 1288 1218 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
1.5.0.0/16 38639 for assignment to JPNIC membe
1.6.0.0/15 38639 for assignment to JPNIC membe
1.8.0.0/16 38639 for assignment to JPNIC membe
1.20.0.0/16 38639 for assignment to JPNIC membe
1.32.0.0/16 38639 for assignment to JPNIC membe
1.37.0.0/16 38639 for assignment to JPNIC membe
1.187.0.0/16 38639 for assignment to JPNIC membe
14.0.0.0/24 38639 for assignment to JPNIC membe
14.0.1.0/24 38639 for assignment to JPNIC membe
14.0.2.0/23 38639 for assignment to JPNIC membe
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 /8:25 /9:10 /10:26 /11:72 /12:217
/13:443 /14:765 /15:1370 /16:11508 /17:5629 /18:9303
/19:18984 /20:24494 /21:24968 /22:33273 /23:31643 /24:180487
/25:11 /26:17 /27:24 /28:155 /29:96 /30:46
/31:0 /32:112
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2272 3684 BellSouth.net Inc.
18566 1491 1514 Covad Communications Co.
6478 1478 1524 AT&T Services, Inc.
4323 1390 2585 tw telecom holdings, inc.
10620 1274 1383 Types of queries are: POCs, o
11492 1245 1288 CABLE ONE, INC.
7011 1057 1158 Frontier Communications of Am
1785 1055 1793 PaeTec Communications, Inc.
23456 1036 1820 32-bit ASN transition
6503 952 1170 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)
----------------------------------------------
1:264 2:44 4:14 5:1 8:335 12:2027
13:1 14:400 15:15 16:3 17:8 20:9
23:1 24:1506 27:590 31:3 32:56 33:4
34:2 36:2 37:1 38:702 40:101 41:2298
42:13 44:3 46:615 47:4 49:160 50:101
52:13 55:3 56:2 57:29 58:757 59:475
60:382 61:1013 62:1022 63:1920 64:3823 65:2344
66:4294 67:1778 68:1065 69:2875 70:723 71:408
72:1998 73:1 74:2349 75:291 76:347 77:838
78:681 79:446 80:1069 81:793 82:524 83:466
84:638 85:1046 86:522 87:767 88:356 89:1568
90:163 91:3571 92:495 93:1054 94:1212 95:773
96:457 97:253 98:809 99:33 101:47 107:4
108:127 109:903 110:470 111:707 112:308 113:387
114:487 115:655 116:942 117:677 118:678 119:1029
120:245 121:673 122:1619 123:1048 124:1274 125:1255
128:214 129:151 130:166 131:558 132:101 133:20
134:204 135:49 136:213 137:142 138:295 139:116
140:463 141:203 142:357 143:382 144:486 145:51
146:431 147:202 148:621 149:273 150:159 151:230
152:295 153:180 154:2 155:376 156:174 157:315
158:127 159:376 160:312 161:199 162:277 163:146
164:486 165:342 166:502 167:409 168:722 169:156
170:753 171:69 172:2 173:1243 174:512 175:321
176:1 177:32 178:779 180:797 181:4 182:380
183:242 184:212 186:1031 187:844 188:906 189:1038
190:4550 192:5717 193:4785 194:3483 195:2950 196:1209
197:4 198:3500 199:3802 200:5556 201:1578 202:8043
203:8335 204:4030 205:2281 206:2545 207:2994 208:3901
209:3455 210:2584 211:1347 212:1942 213:1717 214:758
215:62 216:4830 217:1652 218:532 219:363 220:1195
221:459 222:314 223:101
End of report
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