Routing Table Report 04:00 +10GMT Wed 19 May, 2010
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 321164
Prefixes after maximum aggregation: 148343
Deaggregation factor: 2.17
Unique aggregates announced to Internet: 156745
Total ASes present in the Internet Routing Table: 34020
Prefixes per ASN: 9.44
Origin-only ASes present in the Internet Routing Table: 29528
Origin ASes announcing only one prefix: 14372
Transit ASes present in the Internet Routing Table: 4492
Transit-only ASes present in the Internet Routing Table: 101
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 24
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 340
Unregistered ASNs in the Routing Table: 122
Number of 32-bit ASNs allocated by the RIRs: 573
Prefixes from 32-bit ASNs in the Routing Table: 639
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 188
Number of addresses announced to Internet: 2220547392
Equivalent to 132 /8s, 90 /16s and 221 /24s
Percentage of available address space announced: 59.9
Percentage of allocated address space announced: 65.2
Percentage of available address space allocated: 91.9
Percentage of address space in use by end-sites: 82.9
Total number of prefixes smaller than registry allocations: 153909
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 76574
Total APNIC prefixes after maximum aggregation: 26732
APNIC Deaggregation factor: 2.86
Prefixes being announced from the APNIC address blocks: 73578
Unique aggregates announced from the APNIC address blocks: 32244
APNIC Region origin ASes present in the Internet Routing Table: 4037
APNIC Prefixes per ASN: 18.23
APNIC Region origin ASes announcing only one prefix: 1109
APNIC Region transit ASes present in the Internet Routing Table: 625
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 519306304
Equivalent to 30 /8s, 243 /16s and 252 /24s
Percentage of available APNIC address space announced: 77.4
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: 134007
Total ARIN prefixes after maximum aggregation: 69143
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 106893
Unique aggregates announced from the ARIN address blocks: 41465
ARIN Region origin ASes present in the Internet Routing Table: 13702
ARIN Prefixes per ASN: 7.80
ARIN Region origin ASes announcing only one prefix: 5288
ARIN Region transit ASes present in the Internet Routing Table: 1357
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 731116064
Equivalent to 43 /8s, 147 /16s and 242 /24s
Percentage of available ARIN address space announced: 62.3
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: 73874
Total RIPE prefixes after maximum aggregation: 42904
RIPE Deaggregation factor: 1.72
Prefixes being announced from the RIPE address blocks: 66847
Unique aggregates announced from the RIPE address blocks: 43989
RIPE Region origin ASes present in the Internet Routing Table: 14453
RIPE Prefixes per ASN: 4.63
RIPE Region origin ASes announcing only one prefix: 7466
RIPE Region transit ASes present in the Internet Routing Table: 2161
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 426053088
Equivalent to 25 /8s, 101 /16s and 13 /24s
Percentage of available RIPE address space announced: 74.7
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: 28511
Total LACNIC prefixes after maximum aggregation: 6813
LACNIC Deaggregation factor: 4.18
Prefixes being announced from the LACNIC address blocks: 26904
Unique aggregates announced from the LACNIC address blocks: 14040
LACNIC Region origin ASes present in the Internet Routing Table: 1288
LACNIC Prefixes per ASN: 20.89
LACNIC Region origin ASes announcing only one prefix: 402
LACNIC Region transit ASes present in the Internet Routing Table: 225
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 73131264
Equivalent to 4 /8s, 91 /16s and 229 /24s
Percentage of available LACNIC address space announced: 72.6
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 186/8, 187/8, 189/8, 190/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 7338
Total AfriNIC prefixes after maximum aggregation: 1856
AfriNIC Deaggregation factor: 3.95
Prefixes being announced from the AfriNIC address blocks: 5638
Unique aggregates announced from the AfriNIC address blocks: 1659
AfriNIC Region origin ASes present in the Internet Routing Table: 364
AfriNIC Prefixes per ASN: 15.49
AfriNIC Region origin ASes announcing only one prefix: 107
AfriNIC Region transit ASes present in the Internet Routing Table: 83
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC addresses announced to Internet: 17911808
Equivalent to 1 /8s, 17 /16s and 80 /24s
Percentage of available AfriNIC address space announced: 53.4
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 1848 8422 483 Korea Telecom (KIX)
17488 1316 140 123 Hathway IP Over Cable Interne
4755 1305 292 150 TATA Communications formerly
7545 1197 232 104 TPG Internet Pty Ltd
17974 1046 281 18 PT TELEKOMUNIKASI INDONESIA
9583 995 73 485 Sify Limited
4134 937 21190 403 CHINANET-BACKBONE
24560 898 304 167 Bharti Airtel Ltd., Telemedia
4808 844 1589 215 CNCGROUP IP network: China169
9829 791 681 34 BSNL National Internet Backbo
Complete listing at http://thyme.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3930 3733 288 bellsouth.net, inc.
4323 3839 1116 404 Time Warner Telecom
1785 1784 699 131 PaeTec Communications, Inc.
7018 1546 5756 981 AT&T WorldNet Services
20115 1537 1505 655 Charter Communications
2386 1293 568 914 AT&T Data Communications Serv
6478 1246 257 97 AT&T Worldnet Services
3356 1192 10887 406 Level 3 Communications, LLC
22773 1172 2606 72 Cox Communications, Inc.
11492 1145 209 284 Cable One
Complete listing at http://thyme.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
35805 625 56 6 United Telecom of Georgia
3292 454 2027 393 TDC Tele Danmark
30890 441 116 207 Evolva Telecom
702 413 1869 327 UUNET - Commercial IP service
8551 402 355 38 Bezeq International
8866 394 117 18 Bulgarian Telecommunication C
3301 365 1413 321 TeliaNet Sweden
3320 364 7072 317 Deutsche Telekom AG
12479 335 576 5 Uni2 Autonomous System
3215 331 3218 100 France Telecom Transpac
Complete listing at http://thyme.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1554 2965 246 UniNet S.A. de C.V.
10620 1037 233 151 TVCABLE BOGOTA
28573 875 720 76 NET Servicos de Comunicao S.A
7303 722 373 103 Telecom Argentina Stet-France
6503 576 173 209 AVANTEL, S.A.
22047 549 310 15 VTR PUNTO NET S.A.
7738 477 922 30 Telecomunicacoes da Bahia S.A
3816 468 201 73 Empresa Nacional de Telecomun
14117 448 30 13 Telefonica del Sur S.A.
11172 444 99 72 Servicios Alestra S.A de C.V
Complete listing at http://thyme.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 1256 445 10 TEDATA
24863 714 147 39 LINKdotNET AS number
36992 636 276 182 Etisalat MISR
3741 271 852 232 The Internet Solution
2018 216 231 112 Tertiary Education Network
33776 215 11 14 Starcomms Nigeria Limited
6713 176 167 12 Itissalat Al-MAGHRIB
24835 176 78 10 RAYA Telecom - Egypt
29571 172 19 9 Ci Telecom Autonomous system
29975 133 506 14 Vodacom
Complete listing at http://thyme.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3930 3733 288 bellsouth.net, inc.
4323 3839 1116 404 Time Warner Telecom
4766 1848 8422 483 Korea Telecom (KIX)
1785 1784 699 131 PaeTec Communications, Inc.
8151 1554 2965 246 UniNet S.A. de C.V.
7018 1546 5756 981 AT&T WorldNet Services
20115 1537 1505 655 Charter Communications
17488 1316 140 123 Hathway IP Over Cable Interne
4755 1305 292 150 TATA Communications formerly
2386 1293 568 914 AT&T Data Communications Serv
Complete listing at http://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 3839 3435 Time Warner Telecom
1785 1784 1653 PaeTec Communications, Inc.
4766 1848 1365 Korea Telecom (KIX)
8151 1554 1308 UniNet S.A. de C.V.
8452 1256 1246 TEDATA
17488 1316 1193 Hathway IP Over Cable Interne
4755 1305 1155 TATA Communications formerly
6478 1246 1149 AT&T Worldnet Services
22773 1172 1100 Cox Communications, Inc.
7545 1197 1093 TPG Internet Pty Ltd
Complete listing at http://thyme.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
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 1239 Sprint
26973 UNALLOCATED 12.39.154.0/23 1239 Sprint
26973 UNALLOCATED 12.39.155.0/24 1239 Sprint
26973 UNALLOCATED 12.39.159.0/24 1239 Sprint
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.apnic.net/current/data-badAS
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
41.74.128.0/20 8657 CPRM Autonomous System
41.202.96.0/19 29571 Ci Telecom Autonomous system
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
Complete listing at http://thyme.apnic.net/current/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 /8:19 /9:10 /10:26 /11:67 /12:194
/13:403 /14:693 /15:1270 /16:11071 /17:5273 /18:8987
/19:18285 /20:22571 /21:22637 /22:29489 /23:29102 /24:168122
/25:951 /26:1202 /27:622 /28:146 /29:9 /30:7
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2514 3930 bellsouth.net, inc.
4323 2332 3839 Time Warner Telecom
4766 1481 1848 Korea Telecom (KIX)
1785 1247 1784 PaeTec Communications, Inc.
8452 1134 1256 TEDATA
17488 1063 1316 Hathway IP Over Cable Interne
11492 1061 1145 Cable One
18566 1040 1059 Covad Communications
10620 953 1037 TVCABLE BOGOTA
7018 931 1546 AT&T WorldNet Services
Complete listing at http://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1 4:13 8:265 12:2015 13:10 14:1
15:23 16:3 17:8 20:21 24:1410 27:62
31:1 32:47 33:12 38:670 40:98 41:2477
44:3 47:26 52:6 55:7 56:2 57:24
58:725 59:505 60:434 61:1091 62:1049 63:1979
64:3835 65:2363 66:4177 67:1840 68:1108 69:2822
70:713 71:243 72:1817 73:2 74:2284 75:251
76:303 77:869 78:631 79:411 80:1010 81:792
82:476 83:446 84:696 85:1051 86:465 87:702
88:327 89:1546 90:88 91:2760 92:483 93:1101
94:1427 95:596 96:279 97:312 98:547 99:28
108:16 109:478 110:350 111:498 112:258 113:282
114:399 115:592 116:1031 117:641 118:437 119:980
120:141 121:733 122:1439 123:897 124:1106 125:1294
128:209 129:210 130:192 131:559 132:246 133:17
134:194 135:44 136:229 137:172 138:249 139:92
140:483 141:136 142:353 143:390 144:477 145:52
146:424 147:164 148:609 149:289 150:153 151:169
152:263 153:167 154:2 155:329 156:154 157:323
158:107 159:372 160:313 161:205 162:262 163:172
164:407 165:346 166:478 167:393 168:785 169:161
170:703 171:51 172:2 173:735 174:617 175:92
176:1 178:92 180:473 182:57 183:252 184:44
186:381 187:341 188:1305 189:774 190:3654 192:5737
193:4691 194:3349 195:2771 196:1217 197:1 198:3562
199:3427 200:5357 201:1515 202:7986 203:8250 204:4059
205:2331 206:2538 207:3031 208:3912 209:3430 210:2507
211:1245 212:1734 213:1662 214:663 215:70 216:4584
217:1541 218:478 219:372 220:1103 221:400 222:312
223:1
End of report