Routing Table Report 08:00 +10GMT Sat 10 Jul, 2010
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 321010
Prefixes after maximum aggregation: 147930
Deaggregation factor: 2.17
Unique aggregates announced to Internet: 158894
Total ASes present in the Internet Routing Table: 34185
Prefixes per ASN: 9.39
Origin-only ASes present in the Internet Routing Table: 29642
Origin ASes announcing only one prefix: 14436
Transit ASes present in the Internet Routing Table: 4543
Transit-only ASes present in the Internet Routing Table: 109
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 27
Max AS path prepend of ASN (41664) 21
Prefixes from unregistered ASNs in the Routing Table: 312
Unregistered ASNs in the Routing Table: 111
Number of 32-bit ASNs allocated by the RIRs: 679
Prefixes from 32-bit ASNs in the Routing Table: 818
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 157
Number of addresses announced to Internet: 2540898816
Equivalent to 151 /8s, 115 /16s and 10 /24s
Percentage of available address space announced: 68.6
Percentage of allocated address space announced: 73.9
Percentage of available address space allocated: 92.8
Percentage of address space in use by end-sites: 83.6
Total number of prefixes smaller than registry allocations: 151288
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 75315
Total APNIC prefixes after maximum aggregation: 25990
APNIC Deaggregation factor: 2.90
Prefixes being announced from the APNIC address blocks: 72954
Unique aggregates announced from the APNIC address blocks: 33294
APNIC Region origin ASes present in the Internet Routing Table: 4056
APNIC Prefixes per ASN: 17.99
APNIC Region origin ASes announcing only one prefix: 1149
APNIC Region transit ASes present in the Internet Routing Table: 620
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 526434048
Equivalent to 31 /8s, 96 /16s and 191 /24s
Percentage of available APNIC address space announced: 78.4
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, 43/8, 58/8, 59/8, 60/8,
61/8, 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: 133115
Total ARIN prefixes after maximum aggregation: 68827
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 106541
Unique aggregates announced from the ARIN address blocks: 41891
ARIN Region origin ASes present in the Internet Routing Table: 13716
ARIN Prefixes per ASN: 7.77
ARIN Region origin ASes announcing only one prefix: 5279
ARIN Region transit ASes present in the Internet Routing Table: 1351
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 730757632
Equivalent to 43 /8s, 142 /16s and 122 /24s
Percentage of available ARIN address space announced: 62.2
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: 75176
Total RIPE prefixes after maximum aggregation: 43279
RIPE Deaggregation factor: 1.74
Prefixes being announced from the RIPE address blocks: 68272
Unique aggregates announced from the RIPE address blocks: 44435
RIPE Region origin ASes present in the Internet Routing Table: 14564
RIPE Prefixes per ASN: 4.69
RIPE Region origin ASes announcing only one prefix: 7490
RIPE Region transit ASes present in the Internet Routing Table: 2214
Average RIPE Region AS path length visible: 3.3
Max RIPE Region AS path length visible: 27
Number of RIPE addresses announced to Internet: 433692928
Equivalent to 25 /8s, 217 /16s and 161 /24s
Percentage of available RIPE address space announced: 76.0
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, 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: 28634
Total LACNIC prefixes after maximum aggregation: 6876
LACNIC Deaggregation factor: 4.16
Prefixes being announced from the LACNIC address blocks: 27254
Unique aggregates announced from the LACNIC address blocks: 14498
LACNIC Region origin ASes present in the Internet Routing Table: 1297
LACNIC Prefixes per ASN: 21.01
LACNIC Region origin ASes announcing only one prefix: 404
LACNIC Region transit ASes present in the Internet Routing Table: 220
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 75319040
Equivalent to 4 /8s, 125 /16s and 71 /24s
Percentage of available LACNIC address space announced: 56.1
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: 7292
Total AfriNIC prefixes after maximum aggregation: 1837
AfriNIC Deaggregation factor: 3.97
Prefixes being announced from the AfriNIC address blocks: 5594
Unique aggregates announced from the AfriNIC address blocks: 1722
AfriNIC Region origin ASes present in the Internet Routing Table: 372
AfriNIC Prefixes per ASN: 15.04
AfriNIC Region origin ASes announcing only one prefix: 114
AfriNIC Region transit ASes present in the Internet Routing Table: 79
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 19593472
Equivalent to 1 /8s, 42 /16s and 249 /24s
Percentage of available AfriNIC address space announced: 58.4
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 1698 8425 488 Korea Telecom (KIX)
7545 1358 232 104 TPG Internet Pty Ltd
17488 1322 144 125 Hathway IP Over Cable Interne
4755 1318 296 157 TATA Communications formerly
17974 1127 285 28 PT TELEKOMUNIKASI INDONESIA
9583 999 74 488 Sify Limited
24560 931 305 168 Bharti Airtel Ltd., Telemedia
4134 847 21420 409 CHINANET-BACKBONE
9829 810 683 29 BSNL National Internet Backbo
4808 761 1476 192 CNCGROUP IP network: China169
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 3902 3734 290 bellsouth.net, inc.
4323 2718 1114 394 Time Warner Telecom
19262 1827 4562 274 Verizon Global Networks
1785 1778 698 129 PaeTec Communications, Inc.
20115 1547 1522 655 Charter Communications
7018 1507 5735 961 AT&T WorldNet Services
6478 1284 258 126 AT&T Worldnet Services
2386 1276 552 908 AT&T Data Communications Serv
3356 1175 10877 405 Level 3 Communications, LLC
22773 1167 2859 65 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
35805 650 56 6 United Telecom of Georgia
9116 531 328 32 Goldenlines main autonomous s
3292 453 2027 394 TDC Tele Danmark
30890 442 111 207 Evolva Telecom
702 414 1869 326 UUNET - Commercial IP service
9198 409 202 13 Kazakhtelecom Data Network Ad
8551 402 355 38 Bezeq International
8866 402 117 18 Bulgarian Telecommunication C
3320 373 7329 324 Deutsche Telekom AG
3301 372 1414 327 TeliaNet Sweden
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
8151 1442 3017 239 UniNet S.A. de C.V.
10620 1071 239 148 TVCABLE BOGOTA
28573 1029 795 98 NET Servicos de Comunicao S.A
7303 735 389 92 Telecom Argentina Stet-France
6503 671 175 219 AVANTEL, S.A.
22047 548 310 15 VTR PUNTO NET S.A.
3816 497 216 87 Empresa Nacional de Telecomun
14420 489 31 71 ANDINATEL S.A.
7738 477 922 30 Telecomunicacoes da Bahia S.A
11172 449 99 77 Servicios Alestra S.A de C.V
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 1164 445 10 TEDATA
24863 723 146 36 LINKdotNET AS number
36992 649 279 185 Etisalat MISR
3741 267 834 229 The Internet Solution
33776 219 12 11 Starcomms Nigeria Limited
2018 209 244 61 Tertiary Education Network
6713 195 186 16 Itissalat Al-MAGHRIB
24835 191 78 10 RAYA Telecom - Egypt
29571 177 19 10 Ci Telecom Autonomous system
16637 167 441 101 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 3902 3734 290 bellsouth.net, inc.
4323 2718 1114 394 Time Warner Telecom
19262 1827 4562 274 Verizon Global Networks
1785 1778 698 129 PaeTec Communications, Inc.
4766 1698 8425 488 Korea Telecom (KIX)
20115 1547 1522 655 Charter Communications
7018 1507 5735 961 AT&T WorldNet Services
8151 1442 3017 239 UniNet S.A. de C.V.
7545 1358 232 104 TPG Internet Pty Ltd
17488 1322 144 125 Hathway IP Over Cable Interne
Complete listing at http://thyme.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2718 2324 Time Warner Telecom
1785 1778 1649 PaeTec Communications, Inc.
19262 1827 1553 Verizon Global Networks
7545 1358 1254 TPG Internet Pty Ltd
4766 1698 1210 Korea Telecom (KIX)
8151 1442 1203 UniNet S.A. de C.V.
17488 1322 1197 Hathway IP Over Cable Interne
4755 1318 1161 TATA Communications formerly
6478 1284 1158 AT&T Worldnet Services
8452 1164 1154 TEDATA
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 *
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 7018 AT&T WorldNet Servic
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
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 65333 Internet Assigned Numbers Aut
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<<
41.223.188.0/24 22351 Intelsat
41.223.189.0/24 6453 Teleglobe Inc.
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
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 /8:37 /9:10 /10:25 /11:68 /12:197
/13:406 /14:708 /15:1286 /16:11142 /17:5345 /18:9117
/19:18566 /20:23002 /21:22900 /22:30002 /23:29508 /24:168304
/25:10 /26:16 /27:26 /28:144 /29:76 /30:26
/31:0 /32:89
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2500 3902 bellsouth.net, inc.
4323 1391 2718 Time Warner Telecom
4766 1328 1698 Korea Telecom (KIX)
1785 1239 1778 PaeTec Communications, Inc.
11492 1074 1165 Cable One
17488 1067 1322 Hathway IP Over Cable Interne
8452 1052 1164 TEDATA
18566 1039 1058 Covad Communications
10620 987 1071 TVCABLE BOGOTA
7018 909 1507 AT&T WorldNet Services
Complete listing at http://thyme.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:7 2:2 4:13 8:287 12:2015 13:7
14:1 15:22 16:3 17:8 20:17 24:1456
27:235 31:1 32:47 33:12 38:679 40:98
41:2440 44:3 46:1 47:18 52:9 55:4
56:2 57:36 58:664 59:499 60:457 61:1007
62:1069 63:1970 64:3631 65:2357 66:4039 67:1825
68:1107 69:2864 70:725 71:381 72:1954 73:2
74:2266 75:248 76:313 77:937 78:616 79:436
80:976 81:796 82:492 83:441 84:675 85:1051
86:455 87:695 88:331 89:1552 90:94 91:2870
92:488 93:989 94:1398 95:637 96:348 97:209
98:591 99:31 108:100 109:560 110:356 111:537
112:279 113:313 114:427 115:563 116:1065 117:642
118:480 119:940 120:130 121:700 122:1459 123:934
124:1110 125:1313 128:177 129:194 130:163 131:549
132:249 133:16 134:188 135:45 136:238 137:155
138:263 139:101 140:358 141:198 142:330 143:372
144:463 145:50 146:447 147:166 148:642 149:299
150:152 151:230 152:284 153:169 154:1 155:327
156:156 157:294 158:109 159:377 160:314 161:175
162:253 163:167 164:409 165:364 166:459 167:412
168:647 169:155 170:706 171:59 172:2 173:934
174:471 175:136 176:1 178:282 180:513 182:141
183:235 184:109 186:496 187:385 188:1005 189:780
190:3787 192:5681 193:4701 194:3377 195:2802 196:1184
198:3506 199:3426 200:5309 201:1561 202:7784 203:8193
204:4014 205:2306 206:2440 207:3043 208:3867 209:3420
210:2485 211:1261 212:1725 213:1641 214:638 215:69
216:4661 217:1536 218:488 219:373 220:1139 221:385
222:312 223:1
End of report