Routing Table Report 08:00 +10GMT Tue 01 Feb, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 336310
Prefixes after maximum aggregation: 154023
Deaggregation factor: 2.18
Unique aggregates announced to Internet: 169287
Total ASes present in the Internet Routing Table: 35552
Prefixes per ASN: 9.46
Origin-only ASes present in the Internet Routing Table: 30775
Origin ASes announcing only one prefix: 14948
Transit ASes present in the Internet Routing Table: 4777
Transit-only ASes present in the Internet Routing Table: 108
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: 335
Unregistered ASNs in the Routing Table: 129
Number of 32-bit ASNs allocated by the RIRs: 1063
Prefixes from 32-bit ASNs in the Routing Table: 1635
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 200
Number of addresses announced to Internet: 2484530176
Equivalent to 148 /8s, 22 /16s and 236 /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: 136577
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 81573
Total APNIC prefixes after maximum aggregation: 27780
APNIC Deaggregation factor: 2.94
Prefixes being announced from the APNIC address blocks: 79192
Unique aggregates announced from the APNIC address blocks: 35489
APNIC Region origin ASes present in the Internet Routing Table: 4265
APNIC Prefixes per ASN: 18.57
APNIC Region origin ASes announcing only one prefix: 1228
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: 586672128
Equivalent to 34 /8s, 247 /16s and 232 /24s
Percentage of available APNIC address space announced: 79.5
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: 135163
Total ARIN prefixes after maximum aggregation: 69373
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 108070
Unique aggregates announced from the ARIN address blocks: 44495
ARIN Region origin ASes present in the Internet Routing Table: 14071
ARIN Prefixes per ASN: 7.68
ARIN Region origin ASes announcing only one prefix: 5389
ARIN Region transit ASes present in the Internet Routing Table: 1384
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 751590656
Equivalent to 44 /8s, 204 /16s and 93 /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: 81567
Total RIPE prefixes after maximum aggregation: 46152
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 74881
Unique aggregates announced from the RIPE address blocks: 48470
RIPE Region origin ASes present in the Internet Routing Table: 15244
RIPE Prefixes per ASN: 4.91
RIPE Region origin ASes announcing only one prefix: 7776
RIPE Region transit ASes present in the Internet Routing Table: 2347
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 457164032
Equivalent to 27 /8s, 63 /16s and 197 /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: 31081
Total LACNIC prefixes after maximum aggregation: 7167
LACNIC Deaggregation factor: 4.34
Prefixes being announced from the LACNIC address blocks: 30007
Unique aggregates announced from the LACNIC address blocks: 15763
LACNIC Region origin ASes present in the Internet Routing Table: 1410
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: 237
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 80228864
Equivalent to 4 /8s, 200 /16s and 50 /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: 4610
Total AfriNIC prefixes after maximum aggregation: 1648
AfriNIC Deaggregation factor: 2.80
Prefixes being announced from the AfriNIC address blocks: 3422
Unique aggregates announced from the AfriNIC address blocks: 1575
AfriNIC Region origin ASes present in the Internet Routing Table: 393
AfriNIC Prefixes per ASN: 8.71
AfriNIC Region origin ASes announcing only one prefix: 119
AfriNIC Region transit ASes present in the Internet Routing Table: 88
Average AfriNIC Region AS path length visible: 3.5
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 18181376
Equivalent to 1 /8s, 21 /16s and 109 /24s
Percentage of available AfriNIC address space announced: 36.1
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 1585 299 79 TPG Internet Pty Ltd
4755 1406 636 162 TATA Communications formerly
17974 1371 459 28 PT TELEKOMUNIKASI INDONESIA
24560 1090 317 189 Bharti Airtel Ltd., Telemedia
9583 1044 76 487 Sify Limited
17488 950 162 103 Hathway IP Over Cable Interne
4808 934 2030 269 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 1519 1529 643 Charter Communications
6478 1470 289 114 AT&T Worldnet Services
7018 1372 6708 893 AT&T WorldNet Services
2386 1298 554 935 AT&T Data Communications Serv
22773 1276 2865 78 Cox Communications, Inc.
11492 1262 235 79 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 513 1764 318 UPC Distribution Services
9116 481 328 31 Goldenlines main autonomous s
9198 465 266 14 Kazakhtelecom Data Network Ad
34984 457 97 137 BILISIM TELEKOM
3292 447 2011 390 TDC Tele Danmark
8866 439 133 23 Bulgarian Telecommunication C
12479 414 577 6 Uni2 Autonomous System
8551 405 355 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 1358 252 163 TVCABLE BOGOTA
28573 1226 961 82 NET Servicos de Comunicao S.A
8151 1201 2613 356 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 501 220 96 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 147 422 84 MTN Network Solutions
36874 139 24 6 Cybersmart
29975 131 490 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 1635 403 896 32-bit ASN transition
7545 1585 299 79 TPG Internet Pty Ltd
20115 1519 1529 643 Charter Communications
6478 1470 289 114 AT&T Worldnet Services
4755 1406 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 1585 1506 TPG Internet Pty Ltd
6478 1470 1356 AT&T Worldnet Services
17974 1371 1343 PT TELEKOMUNIKASI INDONESIA
4766 1760 1244 Korea Telecom (KIX)
4755 1406 1244 TATA Communications formerly
22773 1276 1198 Cox Communications, Inc.
10620 1358 1195 TVCABLE BOGOTA
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 /16:11424 /17:5572 /18:9225
/19:18833 /20:24210 /21:24436 /22:32311 /23:30768 /24:176171
/25:11 /26:17 /27:24 /28:152 /29:91 /30:43
/31:0 /32:111
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2288 3710 bellsouth.net, inc.
6478 1424 1470 AT&T Worldnet Services
4323 1420 2633 Time Warner Telecom
10620 1249 1358 TVCABLE BOGOTA
11492 1218 1262 Cable One
18566 1103 1122 Covad Communications
7011 1065 1168 Citizens Utilities
1785 1059 1790 PaeTec Communications, Inc.
23456 971 1635 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 24:1464 27:562 32:57 33:5 34:2
36:1 37:1 38:689 40:101 41:1641 42:1
44:3 46:527 47:5 49:143 50:76 52:12
55:5 56:2 57:26 58:762 59:481 60:389
61:1018 62:853 63:1910 64:3733 65:2327 66:4058
67:1755 68:1004 69:2875 70:717 71:392 72:1990
73:1 74:2313 75:293 76:330 77:841 78:695
79:442 80:1022 81:758 82:516 83:476 84:459
85:1052 86:510 87:738 88:349 89:1583 90:159
91:3441 92:494 93:1043 94:1193 95:781 96:408
97:249 98:756 99:33 101:24 107:3 108:81
109:868 110:470 111:687 112:304 113:357 114:471
115:625 116:870 117:666 118:644 119:1023 120:239
121:680 122:1603 123:1051 124:1250 125:1212 128:195
129:149 130:167 131:565 132:103 133:20 134:210
135:49 136:213 137:144 138:293 139:118 140:466
141:198 142:348 143:375 144:480 145:51 146:418
147:192 148:609 149:272 150:149 151:231 152:300
153:175 154:2 155:347 156:167 157:312 158:128
159:369 160:313 161:195 162:276 163:108 164:485
165:336 166:480 167:421 168:734 169:149 170:743
171:66 172:1 173:1263 174:519 175:312 176:1
177:4 178:765 180:765 182:388 183:247 184:208
186:967 187:790 188:906 189:1010 190:4410 192:5738
193:4778 194:3461 195:2907 196:1016 197:3 198:3475
199:3714 200:5547 201:1577 202:8026 203:8313 204:4027
205:2325 206:2420 207:2886 208:3865 209:3466 210:2590
211:1323 212:1878 213:1602 214:754 215:62 216:4785
217:1415 218:515 219:371 220:1194 221:433 222:316
223:90
End of report
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