Routing Table Report 08:00 +10GMT Tue 12 Oct, 2010
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 328465
Prefixes after maximum aggregation: 151162
Deaggregation factor: 2.17
Unique aggregates announced to Internet: 163608
Total ASes present in the Internet Routing Table: 34808
Prefixes per ASN: 9.44
Origin-only ASes present in the Internet Routing Table: 30125
Origin ASes announcing only one prefix: 14728
Transit ASes present in the Internet Routing Table: 4683
Transit-only ASes present in the Internet Routing Table: 103
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: 4442
Unregistered ASNs in the Routing Table: 1946
Number of 32-bit ASNs allocated by the RIRs: 815
Prefixes from 32-bit ASNs in the Routing Table: 1122
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 216
Number of addresses announced to Internet: 2530588416
Equivalent to 150 /8s, 213 /16s and 183 /24s
Percentage of available address space announced: 68.3
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: 85.2
Total number of prefixes smaller than registry allocations: 133699
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 77811
Total APNIC prefixes after maximum aggregation: 26805
APNIC Deaggregation factor: 2.90
Prefixes being announced from the APNIC address blocks: 75485
Unique aggregates announced from the APNIC address blocks: 34281
APNIC Region origin ASes present in the Internet Routing Table: 4147
APNIC Prefixes per ASN: 18.20
APNIC Region origin ASes announcing only one prefix: 1183
APNIC Region transit ASes present in the Internet Routing Table: 635
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 550945024
Equivalent to 32 /8s, 214 /16s and 193 /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: 134647
Total ARIN prefixes after maximum aggregation: 69625
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 107735
Unique aggregates announced from the ARIN address blocks: 43341
ARIN Region origin ASes present in the Internet Routing Table: 13872
ARIN Prefixes per ASN: 7.77
ARIN Region origin ASes announcing only one prefix: 5334
ARIN Region transit ASes present in the Internet Routing Table: 1372
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 736955136
Equivalent to 43 /8s, 237 /16s and 11 /24s
Percentage of available ARIN address space announced: 62.8
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: 76991
Total RIPE prefixes after maximum aggregation: 44339
RIPE Deaggregation factor: 1.74
Prefixes being announced from the RIPE address blocks: 70369
Unique aggregates announced from the RIPE address blocks: 45905
RIPE Region origin ASes present in the Internet Routing Table: 14865
RIPE Prefixes per ASN: 4.73
RIPE Region origin ASes announcing only one prefix: 7655
RIPE Region transit ASes present in the Internet Routing Table: 2287
Average RIPE Region AS path length visible: 3.4
Max RIPE Region AS path length visible: 24
Number of RIPE addresses announced to Internet: 440711424
Equivalent to 26 /8s, 68 /16s and 185 /24s
Percentage of available RIPE address space announced: 77.3
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: 29777
Total LACNIC prefixes after maximum aggregation: 7096
LACNIC Deaggregation factor: 4.20
Prefixes being announced from the LACNIC address blocks: 28601
Unique aggregates announced from the LACNIC address blocks: 15134
LACNIC Region origin ASes present in the Internet Routing Table: 1352
LACNIC Prefixes per ASN: 21.15
LACNIC Region origin ASes announcing only one prefix: 433
LACNIC Region transit ASes present in the Internet Routing Table: 236
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 76060928
Equivalent to 4 /8s, 136 /16s and 153 /24s
Percentage of available LACNIC address space announced: 56.7
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: 7441
Total AfriNIC prefixes after maximum aggregation: 1874
AfriNIC Deaggregation factor: 3.97
Prefixes being announced from the AfriNIC address blocks: 5771
Unique aggregates announced from the AfriNIC address blocks: 1766
AfriNIC Region origin ASes present in the Internet Routing Table: 405
AfriNIC Prefixes per ASN: 14.25
AfriNIC Region origin ASes announcing only one prefix: 123
AfriNIC Region transit ASes present in the Internet Routing Table: 92
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 20839936
Equivalent to 1 /8s, 61 /16s and 254 /24s
Percentage of available AfriNIC address space announced: 62.1
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 1718 9437 506 Korea Telecom (KIX)
7545 1412 297 82 TPG Internet Pty Ltd
4755 1372 378 156 TATA Communications formerly
17488 1360 156 122 Hathway IP Over Cable Interne
17974 1238 302 77 PT TELEKOMUNIKASI INDONESIA
24560 1066 308 178 Bharti Airtel Ltd., Telemedia
9583 1036 78 500 Sify Limited
18101 887 100 133 Reliance Infocom Ltd Internet
4808 836 1610 237 CNCGROUP IP network: China169
9829 820 693 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 3772 3667 278 bellsouth.net, inc.
4323 2609 1108 390 Time Warner Telecom
1785 1794 698 130 PaeTec Communications, Inc.
19262 1778 4833 279 Verizon Global Networks
20115 1501 1519 649 Charter Communications
7018 1475 5729 946 AT&T WorldNet Services
6478 1368 277 109 AT&T Worldnet Services
2386 1303 555 920 AT&T Data Communications Serv
11492 1224 230 71 Cable One
22773 1204 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 451 2028 392 TDC Tele Danmark
8866 419 119 24 Bulgarian Telecommunication C
702 404 1869 318 UUNET - Commercial IP service
8551 404 355 38 Bezeq International
3320 379 7332 330 Deutsche Telekom AG
34984 379 91 186 BILISIM TELEKOM
3301 376 1688 332 TeliaNet Sweden
30890 374 79 203 Evolva Telecom
12479 372 576 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 1333 247 150 TVCABLE BOGOTA
8151 1208 2571 360 UniNet S.A. de C.V.
28573 1145 909 87 NET Servicos de Comunicao S.A
7303 805 440 90 Telecom Argentina Stet-France
6503 746 223 258 AVANTEL, S.A.
22047 558 310 15 VTR PUNTO NET S.A.
14420 540 39 78 ANDINATEL S.A.
3816 483 210 95 Empresa Nacional de Telecomun
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 448 32 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 1098 445 10 TEDATA
24863 734 147 37 LINKdotNET AS number
36992 651 279 174 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 197 12 14 Starcomms Nigeria Limited
16637 173 441 94 MTN Network Solutions
24835 165 78 9 RAYA Telecom - Egypt
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 3772 3667 278 bellsouth.net, inc.
4323 2609 1108 390 Time Warner Telecom
1785 1794 698 130 PaeTec Communications, Inc.
19262 1778 4833 279 Verizon Global Networks
4766 1718 9437 506 Korea Telecom (KIX)
20115 1501 1519 649 Charter Communications
7018 1475 5729 946 AT&T WorldNet Services
7545 1412 297 82 TPG Internet Pty Ltd
4755 1372 378 156 TATA Communications formerly
6478 1368 277 109 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 2609 2219 Time Warner Telecom
1785 1794 1664 PaeTec Communications, Inc.
19262 1778 1499 Verizon Global Networks
7545 1412 1330 TPG Internet Pty Ltd
6478 1368 1259 AT&T Worldnet Services
17488 1360 1238 Hathway IP Over Cable Interne
4755 1372 1216 TATA Communications formerly
4766 1718 1212 Korea Telecom (KIX)
10620 1333 1183 TVCABLE BOGOTA
17974 1238 1161 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
53317 UNALLOCATED 8.14.38.0/24 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
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
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
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
/13:418 /14:732 /15:1325 /16:11264 /17:5460 /18:9268
/19:18581 /20:23659 /21:23738 /22:31004 /23:30232 /24:172012
/25:11 /26:18 /27:27 /28:149 /29:89 /30:34
/31:0 /32:104
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2335 3772 bellsouth.net, inc.
4323 1406 2609 Time Warner Telecom
6478 1332 1368 AT&T Worldnet Services
10620 1221 1333 TVCABLE BOGOTA
11492 1181 1224 Cable One
1785 1075 1794 PaeTec Communications, Inc.
7011 1056 1156 Citizens Utilities
18566 1040 1059 Covad Communications
8452 1005 1098 TEDATA
19262 904 1778 Verizon Global Networks
Complete listing at http://thyme.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:86 2:11 4:13 8:313 12:2005 13:8
14:17 15:20 16:3 17:9 20:9 24:1378
27:362 31:1 32:59 33:11 38:695 40:97
41:2565 44:3 46:116 47:11 49:4 52:12
55:6 56:2 57:27 58:737 59:499 60:477
61:992 62:1032 63:1966 64:3716 65:2327 66:4049
67:1847 68:1138 69:2838 70:753 71:376 72:1937
73:2 74:2298 75:288 76:323 77:863 78:691
79:440 80:1040 81:818 82:505 83:449 84:685
85:1040 86:434 87:698 88:323 89:1557 90:106
91:3106 92:427 93:1020 94:1111 95:739 96:381
97:220 98:637 99:32 101:3 108:64 109:719
110:434 111:569 112:278 113:289 114:450 115:601
116:1102 117:650 118:530 119:966 120:196 121:692
122:1558 123:914 124:1216 125:1241 128:176 129:151
130:165 131:553 132:269 133:20 134:200 135:46
136:203 137:137 138:272 139:107 140:455 141:197
142:333 143:380 144:471 145:54 146:424 147:173
148:600 149:304 150:146 151:232 152:290 153:172
154:2 155:377 156:166 157:305 158:113 159:357
160:312 161:185 162:268 163:156 164:420 165:347
166:466 167:418 168:662 169:156 170:707 171:63
172:2 173:1012 174:560 175:206 176:1 177:1
178:534 180:664 181:1 182:217 183:228 184:128
186:732 187:503 188:842 189:823 190:4115 192:5711
193:4725 194:3424 195:2830 196:1187 198:3477 199:3568
200:5317 201:1574 202:7943 203:8217 204:3961 205:2358
206:2456 207:2967 208:3898 209:3460 210:2502 211:1276
212:1774 213:1702 214:685 215:66 216:4767 217:1585
218:467 219:396 220:1166 221:383 222:313 223:46
End of report