Routing Table Report 08:00 +10GMT Fri 23 Jul, 2010
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 320790
Prefixes after maximum aggregation: 148414
Deaggregation factor: 2.16
Unique aggregates announced to Internet: 159064
Total ASes present in the Internet Routing Table: 34275
Prefixes per ASN: 9.36
Origin-only ASes present in the Internet Routing Table: 29725
Origin ASes announcing only one prefix: 14471
Transit ASes present in the Internet Routing Table: 4550
Transit-only ASes present in the Internet Routing Table: 108
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 26
Max AS path prepend of ASN (41664) 21
Prefixes from unregistered ASNs in the Routing Table: 319
Unregistered ASNs in the Routing Table: 111
Number of 32-bit ASNs allocated by the RIRs: 698
Prefixes from 32-bit ASNs in the Routing Table: 853
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 164
Number of addresses announced to Internet: 2562580224
Equivalent to 152 /8s, 189 /16s and 223 /24s
Percentage of available address space announced: 69.1
Percentage of allocated address space announced: 74.5
Percentage of available address space allocated: 92.8
Percentage of address space in use by end-sites: 83.9
Total number of prefixes smaller than registry allocations: 150719
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 75449
Total APNIC prefixes after maximum aggregation: 26108
APNIC Deaggregation factor: 2.89
Prefixes being announced from the APNIC address blocks: 73117
Unique aggregates announced from the APNIC address blocks: 33440
APNIC Region origin ASes present in the Internet Routing Table: 4063
APNIC Prefixes per ASN: 18.00
APNIC Region origin ASes announcing only one prefix: 1150
APNIC Region transit ASes present in the Internet Routing Table: 621
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 532294400
Equivalent to 31 /8s, 186 /16s and 43 /24s
Percentage of available APNIC address space announced: 79.3
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: 132846
Total ARIN prefixes after maximum aggregation: 68982
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 106186
Unique aggregates announced from the ARIN address blocks: 41986
ARIN Region origin ASes present in the Internet Routing Table: 13746
ARIN Prefixes per ASN: 7.72
ARIN Region origin ASes announcing only one prefix: 5282
ARIN Region transit ASes present in the Internet Routing Table: 1350
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 729798144
Equivalent to 43 /8s, 127 /16s and 214 /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: 75008
Total RIPE prefixes after maximum aggregation: 43403
RIPE Deaggregation factor: 1.73
Prefixes being announced from the RIPE address blocks: 68303
Unique aggregates announced from the RIPE address blocks: 44384
RIPE Region origin ASes present in the Internet Routing Table: 14612
RIPE Prefixes per ASN: 4.67
RIPE Region origin ASes announcing only one prefix: 7506
RIPE Region transit ASes present in the Internet Routing Table: 2216
Average RIPE Region AS path length visible: 3.4
Max RIPE Region AS path length visible: 24
Number of RIPE addresses announced to Internet: 433190656
Equivalent to 25 /8s, 209 /16s and 247 /24s
Percentage of available RIPE address space announced: 75.9
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: 28724
Total LACNIC prefixes after maximum aggregation: 6919
LACNIC Deaggregation factor: 4.15
Prefixes being announced from the LACNIC address blocks: 27365
Unique aggregates announced from the LACNIC address blocks: 14517
LACNIC Region origin ASes present in the Internet Routing Table: 1300
LACNIC Prefixes per ASN: 21.05
LACNIC Region origin ASes announcing only one prefix: 413
LACNIC Region transit ASes present in the Internet Routing Table: 226
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 26
Number of LACNIC addresses announced to Internet: 75742464
Equivalent to 4 /8s, 131 /16s and 189 /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: 7239
Total AfriNIC prefixes after maximum aggregation: 1851
AfriNIC Deaggregation factor: 3.91
Prefixes being announced from the AfriNIC address blocks: 5563
Unique aggregates announced from the AfriNIC address blocks: 1735
AfriNIC Region origin ASes present in the Internet Routing Table: 377
AfriNIC Prefixes per ASN: 14.76
AfriNIC Region origin ASes announcing only one prefix: 120
AfriNIC Region transit ASes present in the Internet Routing Table: 80
Average AfriNIC Region AS path length visible: 3.3
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 19358464
Equivalent to 1 /8s, 39 /16s and 99 /24s
Percentage of available AfriNIC address space announced: 57.7
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 1694 8409 484 Korea Telecom (KIX)
7545 1379 232 105 TPG Internet Pty Ltd
17488 1334 147 128 Hathway IP Over Cable Interne
4755 1324 297 154 TATA Communications formerly
17974 1166 285 52 PT TELEKOMUNIKASI INDONESIA
9583 1002 74 486 Sify Limited
24560 985 304 179 Bharti Airtel Ltd., Telemedia
9829 813 685 32 BSNL National Internet Backbo
4808 762 1475 191 CNCGROUP IP network: China169
4134 753 21740 411 CHINANET-BACKBONE
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 3850 3718 288 bellsouth.net, inc.
4323 2722 1112 394 Time Warner Telecom
19262 1938 4567 278 Verizon Global Networks
1785 1780 698 129 PaeTec Communications, Inc.
20115 1483 1522 651 Charter Communications
7018 1474 5734 958 AT&T WorldNet Services
2386 1283 553 913 AT&T Data Communications Serv
6478 1256 252 197 AT&T Worldnet Services
22773 1172 2858 61 Cox Communications, Inc.
3356 1159 10878 403 Level 3 Communications, LLC
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 532 328 33 Goldenlines main autonomous s
9198 497 202 13 Kazakhtelecom Data Network Ad
3292 452 2027 393 TDC Tele Danmark
30890 441 111 206 Evolva Telecom
702 413 1869 325 UUNET - Commercial IP service
8551 403 355 38 Bezeq International
8866 399 117 18 Bulgarian Telecommunication C
35805 398 56 6 United Telecom of Georgia
3320 375 7329 326 Deutsche Telekom AG
3301 371 1414 326 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 3048 240 UniNet S.A. de C.V.
10620 1072 240 149 TVCABLE BOGOTA
28573 1011 818 99 NET Servicos de Comunicao S.A
7303 738 392 91 Telecom Argentina Stet-France
6503 690 177 218 AVANTEL, S.A.
22047 553 310 15 VTR PUNTO NET S.A.
14420 499 32 72 ANDINATEL S.A.
3816 490 208 91 Empresa Nacional de Telecomun
7738 477 922 30 Telecomunicacoes da Bahia S.A
11172 444 99 73 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 1106 445 10 TEDATA
24863 723 146 36 LINKdotNET AS number
36992 651 279 185 Etisalat MISR
3741 269 898 231 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 189 78 9 RAYA Telecom - Egypt
29571 183 19 10 Ci Telecom Autonomous system
16637 172 441 100 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 3850 3718 288 bellsouth.net, inc.
4323 2722 1112 394 Time Warner Telecom
19262 1938 4567 278 Verizon Global Networks
1785 1780 698 129 PaeTec Communications, Inc.
4766 1694 8409 484 Korea Telecom (KIX)
20115 1483 1522 651 Charter Communications
7018 1474 5734 958 AT&T WorldNet Services
8151 1442 3048 240 UniNet S.A. de C.V.
7545 1379 232 105 TPG Internet Pty Ltd
17488 1334 147 128 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 2722 2328 Time Warner Telecom
19262 1938 1660 Verizon Global Networks
1785 1780 1651 PaeTec Communications, Inc.
7545 1379 1274 TPG Internet Pty Ltd
4766 1694 1210 Korea Telecom (KIX)
17488 1334 1206 Hathway IP Over Cable Interne
8151 1442 1202 UniNet S.A. de C.V.
4755 1324 1170 TATA Communications formerly
17974 1166 1114 PT TELEKOMUNIKASI INDONESIA
22773 1172 1111 Cox Communications, Inc.
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 /8:38 /9:10 /10:25 /11:68 /12:199
/13:406 /14:710 /15:1297 /16:11153 /17:5324 /18:9131
/19:18591 /20:23059 /21:23001 /22:29804 /23:29477 /24:168101
/25:10 /26:16 /27:26 /28:146 /29:81 /30:28
/31:0 /32:89
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2464 3850 bellsouth.net, inc.
4323 1393 2722 Time Warner Telecom
4766 1326 1694 Korea Telecom (KIX)
1785 1242 1780 PaeTec Communications, Inc.
17488 1078 1334 Hathway IP Over Cable Interne
11492 1066 1157 Cable One
18566 1040 1059 Covad Communications
8452 999 1106 TEDATA
10620 988 1072 TVCABLE BOGOTA
19262 912 1938 Verizon Global Networks
Complete listing at http://thyme.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:11 2:3 4:13 8:288 12:2017 13:7
14:1 15:22 16:3 17:8 20:6 24:1459
27:249 31:1 32:47 33:12 38:688 40:98
41:2422 44:3 46:2 47:17 52:9 55:4
56:2 57:36 58:665 59:501 60:460 61:987
62:1041 63:1968 64:3667 65:2341 66:4034 67:1822
68:1089 69:2705 70:706 71:446 72:1941 73:2
74:2257 75:250 76:317 77:868 78:621 79:433
80:980 81:767 82:496 83:439 84:668 85:1040
86:457 87:693 88:340 89:1560 90:95 91:2887
92:505 93:964 94:1307 95:651 96:357 97:211
98:613 99:33 108:105 109:581 110:390 111:523
112:281 113:324 114:429 115:567 116:1074 117:646
118:481 119:881 120:134 121:704 122:1490 123:944
124:1086 125:1309 128:177 129:191 130:162 131:549
132:245 133:16 134:187 135:45 136:240 137:142
138:264 139:101 140:458 141:196 142:323 143:371
144:458 145:50 146:445 147:166 148:643 149:299
150:156 151:230 152:283 153:170 154:1 155:356
156:156 157:296 158:110 159:355 160:316 161:177
162:253 163:164 164:405 165:363 166:460 167:417
168:643 169:155 170:710 171:59 172:2 173:951
174:487 175:151 176:1 178:317 180:469 182:146
183:239 184:112 186:519 187:401 188:849 189:761
190:3789 192:5674 193:4710 194:3405 195:2797 196:1184
198:3494 199:3445 200:5303 201:1566 202:7775 203:8190
204:4013 205:2308 206:2408 207:3040 208:3859 209:3425
210:2494 211:1268 212:1726 213:1666 214:638 215:69
216:4695 217:1531 218:489 219:373 220:1139 221:386
222:312 223:1
End of report