Routing Table Report 08:00 +10GMT Sat 02 Oct, 2010
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 327951
Prefixes after maximum aggregation: 151130
Deaggregation factor: 2.17
Unique aggregates announced to Internet: 163326
Total ASes present in the Internet Routing Table: 34755
Prefixes per ASN: 9.44
Origin-only ASes present in the Internet Routing Table: 30090
Origin ASes announcing only one prefix: 14688
Transit ASes present in the Internet Routing Table: 4665
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: 24
Max AS path prepend of ASN (41664) 21
Prefixes from unregistered ASNs in the Routing Table: 4161
Unregistered ASNs in the Routing Table: 1711
Number of 32-bit ASNs allocated by the RIRs: 804
Prefixes from 32-bit ASNs in the Routing Table: 1109
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 223
Number of addresses announced to Internet: 2529258496
Equivalent to 150 /8s, 193 /16s and 108 /24s
Percentage of available address space announced: 68.2
Percentage of allocated address space announced: 72.9
Percentage of available address space allocated: 93.7
Percentage of address space in use by end-sites: 85.0
Total number of prefixes smaller than registry allocations: 153126
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 77713
Total APNIC prefixes after maximum aggregation: 26773
APNIC Deaggregation factor: 2.90
Prefixes being announced from the APNIC address blocks: 75390
Unique aggregates announced from the APNIC address blocks: 34149
APNIC Region origin ASes present in the Internet Routing Table: 4143
APNIC Prefixes per ASN: 18.20
APNIC Region origin ASes announcing only one prefix: 1177
APNIC Region transit ASes present in the Internet Routing Table: 634
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 551319552
Equivalent to 32 /8s, 220 /16s and 120 /24s
Percentage of available APNIC address space announced: 78.2
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, 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: 134581
Total ARIN prefixes after maximum aggregation: 69630
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 107766
Unique aggregates announced from the ARIN address blocks: 43449
ARIN Region origin ASes present in the Internet Routing Table: 13861
ARIN Prefixes per ASN: 7.77
ARIN Region origin ASes announcing only one prefix: 5322
ARIN Region transit ASes present in the Internet Routing Table: 1368
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 736101888
Equivalent to 43 /8s, 224 /16s and 6 /24s
Percentage of available ARIN address space announced: 62.7
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, 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, 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, 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: 76677
Total RIPE prefixes after maximum aggregation: 44196
RIPE Deaggregation factor: 1.73
Prefixes being announced from the RIPE address blocks: 70108
Unique aggregates announced from the RIPE address blocks: 45705
RIPE Region origin ASes present in the Internet Routing Table: 14830
RIPE Prefixes per ASN: 4.73
RIPE Region origin ASes announcing only one prefix: 7640
RIPE Region transit ASes present in the Internet Routing Table: 2274
Average RIPE Region AS path length visible: 3.3
Max RIPE Region AS path length visible: 24
Number of RIPE addresses announced to Internet: 439973888
Equivalent to 26 /8s, 57 /16s and 120 /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, 196608-197631
RIPE Address Blocks 2/8, 25/8, 31/8, 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: 29878
Total LACNIC prefixes after maximum aggregation: 7248
LACNIC Deaggregation factor: 4.12
Prefixes being announced from the LACNIC address blocks: 28518
Unique aggregates announced from the LACNIC address blocks: 15069
LACNIC Region origin ASes present in the Internet Routing Table: 1343
LACNIC Prefixes per ASN: 21.23
LACNIC Region origin ASes announcing only one prefix: 424
LACNIC Region transit ASes present in the Internet Routing Table: 233
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 75670528
Equivalent to 4 /8s, 130 /16s and 164 /24s
Percentage of available LACNIC address space announced: 56.4
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: 7319
Total AfriNIC prefixes after maximum aggregation: 1895
AfriNIC Deaggregation factor: 3.86
Prefixes being announced from the AfriNIC address blocks: 5631
Unique aggregates announced from the AfriNIC address blocks: 1700
AfriNIC Region origin ASes present in the Internet Routing Table: 406
AfriNIC Prefixes per ASN: 13.87
AfriNIC Region origin ASes announcing only one prefix: 125
AfriNIC Region transit ASes present in the Internet Routing Table: 90
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 20932608
Equivalent to 1 /8s, 63 /16s and 104 /24s
Percentage of available AfriNIC address space announced: 62.4
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1687 9435 500 Korea Telecom (KIX)
7545 1409 297 82 TPG Internet Pty Ltd
4755 1357 368 163 TATA Communications formerly
17488 1347 155 124 Hathway IP Over Cable Interne
17974 1252 301 85 PT TELEKOMUNIKASI INDONESIA
24560 1062 308 178 Bharti Airtel Ltd., Telemedia
9583 1030 77 496 Sify Limited
18101 882 100 132 Reliance Infocom Ltd Internet
4808 834 1607 235 CNCGROUP IP network: China169
9829 820 692 33 BSNL National Internet Backbo
Complete listing at http://thyme.apnic.net/london/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3777 3667 278 bellsouth.net, inc.
4323 2710 1106 389 Time Warner Telecom
19262 1822 4836 286 Verizon Global Networks
1785 1796 698 131 PaeTec Communications, Inc.
7018 1496 5733 961 AT&T WorldNet Services
20115 1493 1530 651 Charter Communications
6478 1354 275 136 AT&T Worldnet Services
2386 1294 555 913 AT&T Data Communications Serv
11492 1218 229 78 Cable One
22773 1199 2859 62 Cox Communications, Inc.
Complete listing at http://thyme.apnic.net/london/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
9116 531 328 32 Goldenlines main autonomous s
3292 449 2026 390 TDC Tele Danmark
8866 417 117 21 Bulgarian Telecommunication C
702 405 1869 319 UUNET - Commercial IP service
8551 404 355 38 Bezeq International
34984 379 90 185 BILISIM TELEKOM
3301 377 1688 333 TeliaNet Sweden
30890 374 79 203 Evolva Telecom
3320 371 7328 322 Deutsche Telekom AG
12479 368 576 5 Uni2 Autonomous System
Complete listing at http://thyme.apnic.net/london/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1324 248 149 TVCABLE BOGOTA
8151 1204 2559 362 UniNet S.A. de C.V.
28573 1155 893 92 NET Servicos de Comunicao S.A
7303 783 424 90 Telecom Argentina Stet-France
6503 745 223 257 AVANTEL, S.A.
22047 561 310 15 VTR PUNTO NET S.A.
14420 556 39 81 ANDINATEL S.A.
3816 481 210 94 Empresa Nacional de Telecomun
7738 477 922 30 Telecomunicacoes da Bahia S.A
14117 444 31 27 Telefonica del Sur S.A.
Complete listing at http://thyme.apnic.net/london/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 1005 445 10 TEDATA
24863 733 147 36 LINKdotNET AS number
36992 652 279 181 Etisalat MISR
3741 266 906 224 The Internet Solution
6713 203 199 12 Itissalat Al-MAGHRIB
29571 203 19 11 Ci Telecom Autonomous system
2018 197 277 64 Tertiary Education Network
33776 196 12 14 Starcomms Nigeria Limited
24835 163 78 9 RAYA Telecom - Egypt
16637 158 441 96 MTN Network Solutions
Complete listing at http://thyme.apnic.net/london/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3777 3667 278 bellsouth.net, inc.
4323 2710 1106 389 Time Warner Telecom
19262 1822 4836 286 Verizon Global Networks
1785 1796 698 131 PaeTec Communications, Inc.
4766 1687 9435 500 Korea Telecom (KIX)
7018 1496 5733 961 AT&T WorldNet Services
20115 1493 1530 651 Charter Communications
7545 1409 297 82 TPG Internet Pty Ltd
4755 1357 368 163 TATA Communications formerly
6478 1354 275 136 AT&T Worldnet Services
Complete listing at http://thyme.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2710 2321 Time Warner Telecom
1785 1796 1665 PaeTec Communications, Inc.
19262 1822 1536 Verizon Global Networks
7545 1409 1327 TPG Internet Pty Ltd
17488 1347 1223 Hathway IP Over Cable Interne
6478 1354 1218 AT&T Worldnet Services
4755 1357 1194 TATA Communications formerly
4766 1687 1187 Korea Telecom (KIX)
10620 1324 1175 TVCABLE BOGOTA
17974 1252 1167 PT TELEKOMUNIKASI INDONESIA
Complete listing at http://thyme.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65333 PRIVATE 5.0.0.0/8 0 *
11946 UNALLOCATED 8.12.155.0/24 40913 Quality Technology S
15040 UNALLOCATED 8.12.156.0/24 3356 Level 3 Communicatio
33084 UNALLOCATED 8.15.195.0/24 3356 Level 3 Communicatio
53562 UNALLOCATED 8.19.94.0/24 3356 Level 3 Communicatio
53407 UNALLOCATED 8.22.15.0/24 174 Cogent Communication
22015 UNALLOCATED 8.22.137.0/24 14989 Broadview Networks
21893 UNALLOCATED 8.26.33.0/24 3356 Level 3 Communicatio
53591 UNALLOCATED 8.26.82.0/24 22241 Integrated Communica
26169 UNALLOCATED 8.225.177.0/24 20225 TelJet
Complete listing at http://thyme.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.apnic.net/london/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
31.0.0.0/16 12654 RIPE NCC RIS Project
31.1.0.0/21 12654 RIPE NCC RIS Project
31.1.24.0/24 12654 RIPE NCC RIS Project
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
41.223.196.0/24 36990 Alkan Telecom Ltd
41.223.197.0/24 36990 Alkan Telecom Ltd
41.223.198.0/24 36990 Alkan Telecom Ltd
41.223.199.0/24 36990 Alkan Telecom Ltd
46.16.64.0/22 28703 Joint Stock Company "UralInte
Complete listing at http://thyme.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 /8:34 /9:10 /10:25 /11:67 /12:204
/13:422 /14:731 /15:1323 /16:11260 /17:5446 /18:9256
/19:18573 /20:23625 /21:23728 /22:30979 /23:30249 /24:171590
/25:11 /26:18 /27:27 /28:147 /29:91 /30:34
/31:0 /32:101
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2405 3777 bellsouth.net, inc.
4323 1367 2710 Time Warner Telecom
4766 1306 1687 Korea Telecom (KIX)
1785 1259 1796 PaeTec Communications, Inc.
10620 1212 1324 TVCABLE BOGOTA
11492 1105 1218 Cable One
17488 1087 1347 Hathway IP Over Cable Interne
18566 1039 1058 Covad Communications
24560 960 1062 Bharti Airtel Ltd., Telemedia
8452 919 1005 TEDATA
Complete listing at http://thyme.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:74 2:15 4:13 8:309 12:2014 13:8
14:13 15:20 16:3 17:9 20:8 24:1374
27:349 31:1 32:59 33:12 38:697 40:97
41:2466 44:3 46:140 47:10 49:4 52:12
55:5 56:2 57:27 58:738 59:503 60:476
61:990 62:1047 63:1967 64:3706 65:2290 66:4031
67:1841 68:1132 69:2830 70:738 71:375 72:1943
73:2 74:2304 75:288 76:321 77:869 78:677
79:421 80:1018 81:805 82:509 83:454 84:670
85:1040 86:431 87:693 88:325 89:1555 90:104
91:3075 92:429 93:1004 94:1096 95:729 96:393
97:219 98:632 99:32 101:3 108:64 109:709
110:432 111:588 112:283 113:287 114:449 115:595
116:1097 117:650 118:523 119:963 120:171 121:691
122:1546 123:915 124:1217 125:1243 128:177 129:151
130:167 131:552 132:269 133:20 134:199 135:46
136:222 137:137 138:273 139:107 140:456 141:196
142:333 143:348 144:475 145:54 146:425 147:167
148:608 149:299 150:146 151:233 152:288 153:171
154:2 155:367 156:166 157:307 158:112 159:355
160:315 161:184 162:266 163:155 164:418 165:368
166:467 167:409 168:657 169:155 170:711 171:62
172:2 173:1083 174:557 175:175 176:1 177:1
178:515 180:665 181:1 182:209 183:258 184:156
186:684 187:504 188:828 189:807 190:4111 192:5721
193:4725 194:3429 195:2831 196:1182 198:3489 199:3559
200:5385 201:1579 202:7903 203:8231 204:3958 205:2368
206:2450 207:2969 208:3882 209:3462 210:2493 211:1276
212:1790 213:1694 214:664 215:66 216:4724 217:1579
218:467 219:396 220:1163 221:383 222:307 223:41
End of report