Routing Table Report 08:00 +10GMT Sat 02 Apr, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 346432
Prefixes after maximum aggregation: 157647
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 173815
Total ASes present in the Internet Routing Table: 36036
Prefixes per ASN: 9.61
Origin-only ASes present in the Internet Routing Table: 31164
Origin ASes announcing only one prefix: 15027
Transit ASes present in the Internet Routing Table: 4872
Transit-only ASes present in the Internet Routing Table: 120
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: 1932
Unregistered ASNs in the Routing Table: 335
Number of 32-bit ASNs allocated by the RIRs: 1247
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2082
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 192
Number of addresses announced to Internet: 2408916736
Equivalent to 143 /8s, 149 /16s and 39 /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: 90.1
Total number of prefixes smaller than registry allocations: 142046
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 83290
Total APNIC prefixes after maximum aggregation: 28455
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 81046
Unique aggregates announced from the APNIC address blocks: 36589
APNIC Region origin ASes present in the Internet Routing Table: 4326
APNIC Prefixes per ASN: 18.73
APNIC Region origin ASes announcing only one prefix: 1223
APNIC Region transit ASes present in the Internet Routing Table: 662
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: 599918080
Equivalent to 35 /8s, 194 /16s and 6 /24s
Percentage of available APNIC address space announced: 76.1
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: 137331
Total ARIN prefixes after maximum aggregation: 70314
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 110182
Unique aggregates announced from the ARIN address blocks: 44986
ARIN Region origin ASes present in the Internet Routing Table: 14212
ARIN Prefixes per ASN: 7.75
ARIN Region origin ASes announcing only one prefix: 5440
ARIN Region transit ASes present in the Internet Routing Table: 1416
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: 797363712
Equivalent to 47 /8s, 134 /16s and 206 /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: 83428
Total RIPE prefixes after maximum aggregation: 47440
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 76668
Unique aggregates announced from the RIPE address blocks: 50259
RIPE Region origin ASes present in the Internet Routing Table: 15457
RIPE Prefixes per ASN: 4.96
RIPE Region origin ASes announcing only one prefix: 7791
RIPE Region transit ASes present in the Internet Routing Table: 2384
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: 465602304
Equivalent to 27 /8s, 192 /16s and 135 /24s
Percentage of available RIPE address space announced: 75.0
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: 31971
Total LACNIC prefixes after maximum aggregation: 7290
LACNIC Deaggregation factor: 4.39
Prefixes being announced from the LACNIC address blocks: 31039
Unique aggregates announced from the LACNIC address blocks: 16282
LACNIC Region origin ASes present in the Internet Routing Table: 1427
LACNIC Prefixes per ASN: 21.75
LACNIC Region origin ASes announcing only one prefix: 441
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: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 81562624
Equivalent to 4 /8s, 220 /16s and 140 /24s
Percentage of available LACNIC address space announced: 54.0
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: 7591
Total AfriNIC prefixes after maximum aggregation: 1815
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 5979
Unique aggregates announced from the AfriNIC address blocks: 1865
AfriNIC Region origin ASes present in the Internet Routing Table: 438
AfriNIC Prefixes per ASN: 13.65
AfriNIC Region origin ASes announcing only one prefix: 132
AfriNIC Region transit ASes present in the Internet Routing Table: 97
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: 22655488
Equivalent to 1 /8s, 89 /16s and 178 /24s
Percentage of available AfriNIC address space announced: 33.8
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 1867 9506 601 Korea Telecom (KIX)
7545 1545 301 85 TPG Internet Pty Ltd
17974 1444 472 34 PT Telekomunikasi Indonesia
4755 1435 638 168 TATA Communications formerly
24560 1135 322 204 Bharti Airtel Ltd., Telemedia
9583 1055 77 494 Sify Limited
9829 1006 869 51 National Internet Backbone
4808 950 2032 277 CNCGROUP IP network China169
17488 938 162 98 Hathway IP Over Cable Interne
18101 935 116 138 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 3670 3838 258 BellSouth.net Inc.
4323 2553 1106 397 tw telecom holdings, inc.
1785 1786 681 127 PaeTec Communications, Inc.
18566 1597 330 198 Covad Communications Co.
6478 1591 304 44 AT&T Services, Inc.
20115 1532 1541 641 Charter Communications
19262 1489 4935 303 Verizon Online LLC
7018 1371 6946 897 AT&T Services, Inc.
11492 1322 240 15 CABLE ONE, INC.
22773 1291 2865 84 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 541 326 30 Goldenlines main autonomous s
6830 512 1780 317 UPC Broadband
34984 484 97 186 BILISIM TELEKOM
3292 454 2013 391 TDC Data Networks
20940 450 126 342 Akamai Technologies European
8866 446 134 26 Bulgarian Telecommunication C
9198 424 267 15 Kazakhtelecom Data Network Ad
3320 412 7604 358 Deutsche Telekom AG
8551 405 355 38 Bezeq International
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 1405 262 152 Types of queries are: POCs, o
28573 1245 971 84 Types of queries are: POCs, o
8151 1230 2661 366 Uninet S.A. de C.V.
6503 1108 354 73 Axtel, S.A.B. de C.V.
7303 901 464 136 Telecom Argentina S.A.
14420 642 52 91 CORPORACION NACIONAL DE TELEC
22047 567 310 15 Types of queries are: POCs, o
3816 516 225 97 Types of queries are: POCs, o
11172 485 99 80 Alestra, S. de R.L. de C.V.
14117 480 38 44 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 838 445 11 TEDATA
24863 770 147 36 LINKdotNET AS number
15475 429 90 8 Nile Online
36992 292 271 14 Etisalat MISR
3741 265 985 227 The Internet Solution
24835 232 78 10 RAYA Telecom - Egypt
6713 231 215 12 Itissalat Al-MAGHRIB
33776 227 13 5 Starcomms Nigeria Limited
29571 192 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 3670 3838 258 BellSouth.net Inc.
4323 2553 1106 397 tw telecom holdings, inc.
23456 2082 503 1117 32-bit ASN transition
4766 1867 9506 601 Korea Telecom (KIX)
1785 1786 681 127 PaeTec Communications, Inc.
18566 1597 330 198 Covad Communications Co.
6478 1591 304 44 AT&T Services, Inc.
7545 1545 301 85 TPG Internet Pty Ltd
20115 1532 1541 641 Charter Communications
19262 1489 4935 303 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 2553 2156 tw telecom holdings, inc.
1785 1786 1659 PaeTec Communications, Inc.
6478 1591 1547 AT&T Services, Inc.
7545 1545 1460 TPG Internet Pty Ltd
17974 1444 1410 PT Telekomunikasi Indonesia
18566 1597 1399 Covad Communications Co.
11492 1322 1307 CABLE ONE, INC.
4755 1435 1267 TATA Communications formerly
4766 1867 1266 Korea Telecom (KIX)
10620 1405 1253 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
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.
21861 UNALLOCATED 12.37.59.0/24 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
1.3.0.0/16 38639 for assignment to JPNIC membe
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
31.170.224.0/19 29049 AzerSat LLC.
31.171.0.0/17 29049 AzerSat LLC.
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
/13:447 /14:765 /15:1367 /16:11539 /17:5684 /18:9359
/19:19150 /20:24859 /21:25194 /22:33460 /23:31857 /24:181922
/25:11 /26:17 /27:24 /28:159 /29:99 /30:52
/31:0 /32:118
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2263 3670 BellSouth.net Inc.
18566 1576 1597 Covad Communications Co.
6478 1545 1591 AT&T Services, Inc.
4323 1370 2553 tw telecom holdings, inc.
10620 1295 1405 Types of queries are: POCs, o
11492 1271 1322 CABLE ONE, INC.
23456 1104 2082 32-bit ASN transition
7011 1064 1164 Frontier Communications of Am
1785 1056 1786 PaeTec Communications, Inc.
6503 892 1108 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)
----------------------------------------------
1:295 2:53 4:14 5:1 8:347 12:2015
13:1 14:414 15:15 16:3 17:8 20:9
23:5 24:1591 27:708 31:53 32:56 33:3
34:2 37:1 38:747 39:1 40:101 41:2367
42:1 44:3 46:774 47:4 49:141 50:137
52:13 55:6 56:2 57:27 58:778 59:478
60:385 61:1040 62:1009 63:1904 64:3848 65:2333
66:4307 67:1809 68:1076 69:2907 70:696 71:343
72:1898 73:1 74:2327 75:285 76:336 77:851
78:692 79:452 80:1080 81:821 82:512 83:467
84:646 85:1030 86:542 87:772 88:339 89:1551
90:175 91:3659 92:510 93:1038 94:1236 95:784
96:454 97:253 98:816 99:35 101:41 106:1
107:4 108:80 109:927 110:518 111:672 112:308
113:383 114:488 115:667 116:918 117:674 118:756
119:1120 120:286 121:686 122:1606 123:1041 124:1262
125:1247 128:213 129:168 130:166 131:558 132:101
133:20 134:208 135:49 136:210 137:139 138:301
139:103 140:464 141:173 142:362 143:388 144:479
145:52 146:438 147:202 148:619 149:260 150:158
151:187 152:296 153:180 154:2 155:390 156:184
157:320 158:131 159:374 160:316 161:202 162:276
163:156 164:493 165:347 166:504 167:414 168:717
169:153 170:779 171:74 172:2 173:1260 174:531
175:338 177:70 178:781 180:791 181:4 182:396
183:198 184:237 185:1 186:1116 187:904 188:925
189:1039 190:4784 192:5716 193:4793 194:3474 195:2944
196:1196 197:15 198:3535 199:3838 200:5539 201:1482
202:8135 203:8351 204:4049 205:2297 206:2546 207:2948
208:3910 209:3470 210:2647 211:1356 212:1986 213:1706
214:755 215:66 216:4827 217:1629 218:546 219:338
220:1188 221:462 222:296 223:101
End of report
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