Routing Table Report 08:00 +10GMT Tue 13 Jul, 2010
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 320570
Prefixes after maximum aggregation: 148038
Deaggregation factor: 2.17
Unique aggregates announced to Internet: 158873
Total ASes present in the Internet Routing Table: 34190
Prefixes per ASN: 9.38
Origin-only ASes present in the Internet Routing Table: 29649
Origin ASes announcing only one prefix: 14449
Transit ASes present in the Internet Routing Table: 4541
Transit-only ASes present in the Internet Routing Table: 104
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 25
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: 682
Prefixes from 32-bit ASNs in the Routing Table: 815
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 157
Number of addresses announced to Internet: 2540494592
Equivalent to 151 /8s, 108 /16s and 223 /24s
Percentage of available address space announced: 68.5
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: 83.7
Total number of prefixes smaller than registry allocations: 150794
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 75469
Total APNIC prefixes after maximum aggregation: 26001
APNIC Deaggregation factor: 2.90
Prefixes being announced from the APNIC address blocks: 73118
Unique aggregates announced from the APNIC address blocks: 33360
APNIC Region origin ASes present in the Internet Routing Table: 4056
APNIC Prefixes per ASN: 18.03
APNIC Region origin ASes announcing only one prefix: 1148
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: 526892544
Equivalent to 31 /8s, 103 /16s and 190 /24s
Percentage of available APNIC address space announced: 78.5
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, 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: 132597
Total ARIN prefixes after maximum aggregation: 68902
ARIN Deaggregation factor: 1.92
Prefixes being announced from the ARIN address blocks: 105921
Unique aggregates announced from the ARIN address blocks: 41949
ARIN Region origin ASes present in the Internet Routing Table: 13719
ARIN Prefixes per ASN: 7.72
ARIN Region origin ASes announcing only one prefix: 5286
ARIN Region transit ASes present in the Internet Routing Table: 1349
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 729638400
Equivalent to 43 /8s, 125 /16s and 102 /24s
Percentage of available ARIN address space announced: 62.1
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, 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: 75194
Total RIPE prefixes after maximum aggregation: 43300
RIPE Deaggregation factor: 1.74
Prefixes being announced from the RIPE address blocks: 68296
Unique aggregates announced from the RIPE address blocks: 44419
RIPE Region origin ASes present in the Internet Routing Table: 14573
RIPE Prefixes per ASN: 4.69
RIPE Region origin ASes announcing only one prefix: 7493
RIPE Region transit ASes present in the Internet Routing Table: 2216
Average RIPE Region AS path length visible: 3.3
Max RIPE Region AS path length visible: 24
Number of RIPE addresses announced to Internet: 433915648
Equivalent to 25 /8s, 221 /16s and 7 /24s
Percentage of available RIPE address space announced: 76.1
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: 28566
Total LACNIC prefixes after maximum aggregation: 6862
LACNIC Deaggregation factor: 4.16
Prefixes being announced from the LACNIC address blocks: 27182
Unique aggregates announced from the LACNIC address blocks: 14498
LACNIC Region origin ASes present in the Internet Routing Table: 1293
LACNIC Prefixes per ASN: 21.02
LACNIC Region origin ASes announcing only one prefix: 405
LACNIC Region transit ASes present in the Internet Routing Table: 222
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 75257344
Equivalent to 4 /8s, 124 /16s and 86 /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: 7282
Total AfriNIC prefixes after maximum aggregation: 1854
AfriNIC Deaggregation factor: 3.93
Prefixes being announced from the AfriNIC address blocks: 5582
Unique aggregates announced from the AfriNIC address blocks: 1609
AfriNIC Region origin ASes present in the Internet Routing Table: 374
AfriNIC Prefixes per ASN: 14.93
AfriNIC Region origin ASes announcing only one prefix: 117
AfriNIC Region transit ASes present in the Internet Routing Table: 77
Average AfriNIC Region AS path length visible: 3.3
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 19601920
Equivalent to 1 /8s, 43 /16s and 26 /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 1368 232 106 TPG Internet Pty Ltd
17488 1331 145 127 Hathway IP Over Cable Interne
4755 1319 296 158 TATA Communications formerly
17974 1151 285 29 PT TELEKOMUNIKASI INDONESIA
9583 1010 76 489 Sify Limited
24560 949 306 173 Bharti Airtel Ltd., Telemedia
4134 848 21484 410 CHINANET-BACKBONE
9829 809 685 32 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 3896 3734 292 bellsouth.net, inc.
4323 2716 1113 392 Time Warner Telecom
19262 1827 4562 274 Verizon Global Networks
1785 1778 698 129 PaeTec Communications, Inc.
20115 1549 1523 653 Charter Communications
7018 1506 5735 959 AT&T WorldNet Services
2386 1276 552 907 AT&T Data Communications Serv
6478 1275 257 159 AT&T Worldnet Services
3356 1172 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 651 56 6 United Telecom of Georgia
9116 531 328 32 Goldenlines main autonomous s
3292 453 2027 394 TDC Tele Danmark
30890 441 111 207 Evolva Telecom
702 413 1869 325 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 1441 3017 240 UniNet S.A. de C.V.
10620 1071 239 148 TVCABLE BOGOTA
28573 1031 795 98 NET Servicos de Comunicao S.A
7303 735 389 92 Telecom Argentina Stet-France
6503 670 177 219 AVANTEL, S.A.
22047 549 310 15 VTR PUNTO NET S.A.
3816 499 217 86 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 1165 445 10 TEDATA
24863 723 146 36 LINKdotNET AS number
36992 651 279 186 Etisalat MISR
3741 267 834 229 The Internet Solution
33776 220 12 12 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 171 441 99 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 3896 3734 292 bellsouth.net, inc.
4323 2716 1113 392 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 1549 1523 653 Charter Communications
7018 1506 5735 959 AT&T WorldNet Services
8151 1441 3017 240 UniNet S.A. de C.V.
7545 1368 232 106 TPG Internet Pty Ltd
17488 1331 145 127 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 2716 2324 Time Warner Telecom
1785 1778 1649 PaeTec Communications, Inc.
19262 1827 1553 Verizon Global Networks
7545 1368 1262 TPG Internet Pty Ltd
4766 1698 1210 Korea Telecom (KIX)
17488 1331 1204 Hathway IP Over Cable Interne
8151 1441 1201 UniNet S.A. de C.V.
4755 1319 1161 TATA Communications formerly
8452 1165 1155 TEDATA
17974 1151 1122 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 *
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 /11:67 /12:197
/13:406 /14:709 /15:1287 /16:11151 /17:5349 /18:9154
/19:18557 /20:23040 /21:22885 /22:29698 /23:29430 /24:168193
/25:10 /26:16 /27:26 /28:141 /29:76 /30:25
/31:0 /32:81
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2495 3896 bellsouth.net, inc.
4323 1390 2716 Time Warner Telecom
4766 1328 1698 Korea Telecom (KIX)
1785 1239 1778 PaeTec Communications, Inc.
17488 1076 1331 Hathway IP Over Cable Interne
8452 1053 1165 TEDATA
11492 1051 1142 Cable One
18566 1039 1058 Covad Communications
10620 987 1071 TVCABLE BOGOTA
7018 908 1506 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 8:288 12:2016 13:7
14:1 15:22 16:3 17:8 20:6 24:1452
27:242 31:1 32:47 33:12 38:680 40:98
41:2415 44:3 46:1 47:18 52:9 55:4
56:2 57:36 58:664 59:498 60:457 61:1007
62:1057 63:1968 64:3645 65:2341 66:4036 67:1823
68:1108 69:2697 70:725 71:381 72:1945 73:2
74:2263 75:248 76:316 77:940 78:617 79:433
80:986 81:764 82:493 83:442 84:674 85:1051
86:454 87:694 88:331 89:1541 90:94 91:2873
92:490 93:993 94:1400 95:637 96:346 97:209
98:590 99:31 108:100 109:560 110:376 111:534
112:280 113:315 114:428 115:563 116:1074 117:644
118:483 119:952 120:131 121:700 122:1469 123:932
124:1101 125:1313 128:177 129:193 130:163 131:549
132:245 133:16 134:187 135:45 136:238 137:154
138:264 139:101 140:459 141:197 142:322 143:367
144:447 145:50 146:447 147:166 148:640 149:300
150:142 151:230 152:285 153:169 154:1 155:357
156:156 157:294 158:108 159:377 160:315 161:176
162:253 163:161 164:408 165:364 166:458 167:412
168:645 169:155 170:709 171:59 172:2 173:934
174:472 175:142 176:1 178:289 180:513 182:142
183:235 184:110 186:495 187:375 188:1005 189:788
190:3787 192:5677 193:4701 194:3397 195:2805 196:1186
198:3506 199:3419 200:5293 201:1560 202:7800 203:8187
204:4010 205:2295 206:2449 207:3066 208:3858 209:3419
210:2482 211:1263 212:1725 213:1638 214:634 215:69
216:4658 217:1532 218:489 219:373 220:1141 221:385
222:312 223:1
End of report