Routing Table Report 08:00 +10GMT Mon 31 Jan, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 336278
Prefixes after maximum aggregation: 153929
Deaggregation factor: 2.18
Unique aggregates announced to Internet: 169233
Total ASes present in the Internet Routing Table: 35554
Prefixes per ASN: 9.46
Origin-only ASes present in the Internet Routing Table: 30768
Origin ASes announcing only one prefix: 14954
Transit ASes present in the Internet Routing Table: 4786
Transit-only ASes present in the Internet Routing Table: 105
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (22394) 20
Prefixes from unregistered ASNs in the Routing Table: 315
Unregistered ASNs in the Routing Table: 121
Number of 32-bit ASNs allocated by the RIRs: 1063
Prefixes from 32-bit ASNs in the Routing Table: 1620
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 205
Number of addresses announced to Internet: 2484458752
Equivalent to 148 /8s, 21 /16s and 213 /24s
Percentage of available address space announced: 67.0
Percentage of allocated address space announced: 69.2
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 88.0
Total number of prefixes smaller than registry allocations: 136517
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 81598
Total APNIC prefixes after maximum aggregation: 27789
APNIC Deaggregation factor: 2.94
Prefixes being announced from the APNIC address blocks: 79200
Unique aggregates announced from the APNIC address blocks: 35469
APNIC Region origin ASes present in the Internet Routing Table: 4261
APNIC Prefixes per ASN: 18.59
APNIC Region origin ASes announcing only one prefix: 1225
APNIC Region transit ASes present in the Internet Routing Table: 657
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 586443776
Equivalent to 34 /8s, 244 /16s and 108 /24s
Percentage of available APNIC address space announced: 79.4
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, 42/8, 43/8, 49/8,
58/8, 59/8, 60/8, 61/8, 101/8, 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: 135124
Total ARIN prefixes after maximum aggregation: 69277
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 108097
Unique aggregates announced from the ARIN address blocks: 44499
ARIN Region origin ASes present in the Internet Routing Table: 14074
ARIN Prefixes per ASN: 7.68
ARIN Region origin ASes announcing only one prefix: 5391
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: 751591168
Equivalent to 44 /8s, 204 /16s and 95 /24s
Percentage of available ARIN address space announced: 63.1
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, 47/8, 48/8, 50/8, 52/8, 54/8,
55/8, 56/8, 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,
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: 81436
Total RIPE prefixes after maximum aggregation: 46129
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 74763
Unique aggregates announced from the RIPE address blocks: 48383
RIPE Region origin ASes present in the Internet Routing Table: 15238
RIPE Prefixes per ASN: 4.91
RIPE Region origin ASes announcing only one prefix: 7778
RIPE Region transit ASes present in the Internet Routing Table: 2353
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 457042688
Equivalent to 27 /8s, 61 /16s and 235 /24s
Percentage of available RIPE address space announced: 75.7
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, 193/8, 194/8, 195/8, 212/8, 213/8,
217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 31123
Total LACNIC prefixes after maximum aggregation: 7169
LACNIC Deaggregation factor: 4.34
Prefixes being announced from the LACNIC address blocks: 30047
Unique aggregates announced from the LACNIC address blocks: 15789
LACNIC Region origin ASes present in the Internet Routing Table: 1412
LACNIC Prefixes per ASN: 21.28
LACNIC Region origin ASes announcing only one prefix: 436
LACNIC Region transit ASes present in the Internet Routing Table: 239
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 80209408
Equivalent to 4 /8s, 199 /16s and 230 /24s
Percentage of available LACNIC address space announced: 59.8
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 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: 4705
Total AfriNIC prefixes after maximum aggregation: 1668
AfriNIC Deaggregation factor: 2.82
Prefixes being announced from the AfriNIC address blocks: 3505
Unique aggregates announced from the AfriNIC address blocks: 1585
AfriNIC Region origin ASes present in the Internet Routing Table: 403
AfriNIC Prefixes per ASN: 8.70
AfriNIC Region origin ASes announcing only one prefix: 124
AfriNIC Region transit ASes present in the Internet Routing Table: 89
Average AfriNIC Region AS path length visible: 3.5
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 18339328
Equivalent to 1 /8s, 23 /16s and 214 /24s
Percentage of available AfriNIC address space announced: 36.4
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1760 9484 516 Korea Telecom (KIX)
7545 1581 299 77 TPG Internet Pty Ltd
4755 1404 636 162 TATA Communications formerly
17974 1388 459 28 PT TELEKOMUNIKASI INDONESIA
24560 1094 317 180 Bharti Airtel Ltd., Telemedia
9583 1044 76 487 Sify Limited
17488 950 162 103 Hathway IP Over Cable Interne
4808 935 2030 271 CNCGROUP IP network: China169
18101 923 116 140 Reliance Infocom Ltd Internet
9829 896 762 41 BSNL National Internet Backbo
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 3710 3855 266 bellsouth.net, inc.
4323 2633 1125 404 Time Warner Telecom
19262 1841 4943 285 Verizon Global Networks
1785 1790 698 133 PaeTec Communications, Inc.
20115 1521 1531 642 Charter Communications
6478 1483 292 54 AT&T Worldnet Services
7018 1373 6708 891 AT&T WorldNet Services
2386 1299 554 935 AT&T Data Communications Serv
22773 1274 2865 78 Cox Communications, Inc.
11492 1271 235 74 Cable One
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
6830 510 1764 317 UPC Distribution Services
9116 481 328 31 Goldenlines main autonomous s
9198 465 266 14 Kazakhtelecom Data Network Ad
34984 458 97 137 BILISIM TELEKOM
3292 447 2011 390 TDC Tele Danmark
8866 438 133 23 Bulgarian Telecommunication C
12479 413 577 6 Uni2 Autonomous System
8551 404 355 38 Bezeq International
702 401 1819 314 UUNET - Commercial IP service
3320 401 7616 350 Deutsche Telekom AG
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 1357 252 165 TVCABLE BOGOTA
28573 1225 961 82 NET Servicos de Comunicao S.A
8151 1202 2613 355 UniNet S.A. de C.V.
6503 1139 355 79 AVANTEL, S.A.
7303 864 460 103 Telecom Argentina Stet-France
14420 614 55 90 ANDINATEL S.A.
22047 566 310 15 VTR PUNTO NET S.A.
3816 500 220 95 Empresa Nacional de Telecomun
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 456 34 31 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
3741 264 987 226 The Internet Solution
6713 203 199 12 Itissalat Al-MAGHRIB
33776 194 12 15 Starcomms Nigeria Limited
29571 193 17 11 Ci Telecom Autonomous system
16637 154 439 86 MTN Network Solutions
36874 139 24 6 Cybersmart
29975 131 475 17 Vodacom
37061 108 9 2 One Communications Ltd
15706 106 16 5 Sudatel Internet Exchange Aut
37054 85 5 21 Data Telecom Service
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 3710 3855 266 bellsouth.net, inc.
4323 2633 1125 404 Time Warner Telecom
19262 1841 4943 285 Verizon Global Networks
1785 1790 698 133 PaeTec Communications, Inc.
4766 1760 9484 516 Korea Telecom (KIX)
23456 1620 402 893 32-bit ASN transition
7545 1581 299 77 TPG Internet Pty Ltd
20115 1521 1531 642 Charter Communications
6478 1483 292 54 AT&T Worldnet Services
4755 1404 636 162 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 2633 2229 Time Warner Telecom
1785 1790 1657 PaeTec Communications, Inc.
19262 1841 1556 Verizon Global Networks
7545 1581 1504 TPG Internet Pty Ltd
6478 1483 1429 AT&T Worldnet Services
17974 1388 1360 PT TELEKOMUNIKASI INDONESIA
4766 1760 1244 Korea Telecom (KIX)
4755 1404 1242 TATA Communications formerly
11492 1271 1197 Cable One
22773 1274 1196 Cox Communications, 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 WorldNet Servic
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.155.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
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 Continental Cablevision
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
41.78.192.0/22 30999 Emtel is GSM, 3G and ISP in M
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>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 /8:27 /9:10 /10:26 /11:71 /12:215
/13:439 /14:765 /15:1358 /16:11425 /17:5571 /18:9222
/19:18838 /20:24219 /21:24434 /22:32190 /23:30808 /24:176220
/25:11 /26:17 /27:23 /28:150 /29:91 /30:41
/31:0 /32:107
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2288 3710 bellsouth.net, inc.
6478 1437 1483 AT&T Worldnet Services
4323 1420 2633 Time Warner Telecom
10620 1248 1357 TVCABLE BOGOTA
11492 1227 1271 Cable One
18566 1103 1122 Covad Communications
7011 1065 1168 Citizens Utilities
1785 1059 1790 PaeTec Communications, Inc.
23456 959 1620 32-bit ASN transition
19262 954 1841 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:167 2:34 4:13 5:1 8:330 12:2029
13:1 14:361 15:15 16:3 17:8 20:9
23:1 24:1466 27:557 32:57 33:5 34:2
36:1 37:1 38:689 40:101 41:1630 42:1
44:3 46:517 47:5 49:142 50:76 52:12
55:5 56:2 57:27 58:762 59:481 60:389
61:1014 62:851 63:1911 64:3732 65:2329 66:4061
67:1756 68:1005 69:2874 70:716 71:392 72:1988
73:1 74:2309 75:293 76:330 77:852 78:690
79:442 80:1013 81:759 82:515 83:473 84:455
85:1049 86:510 87:737 88:359 89:1584 90:159
91:3441 92:494 93:1042 94:1185 95:779 96:417
97:249 98:755 99:33 101:24 107:3 108:81
109:854 110:470 111:684 112:305 113:351 114:474
115:626 116:870 117:667 118:642 119:1020 120:239
121:681 122:1603 123:1050 124:1250 125:1207 128:195
129:151 130:168 131:564 132:103 133:20 134:210
135:49 136:213 137:144 138:293 139:118 140:466
141:198 142:347 143:371 144:423 145:51 146:418
147:192 148:610 149:272 150:150 151:231 152:300
153:175 154:2 155:346 156:171 157:312 158:128
159:370 160:313 161:195 162:276 163:108 164:483
165:336 166:481 167:423 168:732 169:149 170:742
171:66 172:1 173:1270 174:517 175:312 176:1
177:4 178:773 180:765 182:389 183:245 184:207
186:963 187:797 188:910 189:1021 190:4418 192:5733
193:4776 194:3458 195:2907 196:1030 197:3 198:3473
199:3717 200:5555 201:1575 202:8035 203:8336 204:4027
205:2310 206:2434 207:2883 208:3865 209:3464 210:2579
211:1322 212:1880 213:1624 214:748 215:62 216:4803
217:1488 218:515 219:371 220:1194 221:432 222:316
223:89
End of report
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