Routing Table Report 00:00 GMT Sat 05 Sep, 2009
NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/rviews/
Analysis Summary
----------------
BGP routing table entries examined: 301475
Prefixes after maximum aggregation: 140330
Deaggregation factor: 2.15
Unique aggregates announced to Internet: 147065
Total ASes present in the Internet Routing Table: 32176
Prefixes per ASN: 9.37
Origin-only ASes present in the Internet Routing Table: 27923
Origin ASes announcing only one prefix: 13630
Transit ASes present in the Internet Routing Table: 4253
Transit-only ASes present in the Internet Routing Table: 107
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 24
Max AS path prepend of ASN (12026) 22
Prefixes from unregistered ASNs in the Routing Table: 473
Unregistered ASNs in the Routing Table: 139
Number of 32-bit ASNs allocated by the RIRs: 260
Prefixes from 32-bit ASNs in the Routing Table: 108
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 326
Number of addresses announced to Internet: 2102308754
Equivalent to 125 /8s, 78 /16s and 175 /24s
Percentage of available address space announced: 56.7
Percentage of allocated address space announced: 65.0
Percentage of available address space allocated: 87.3
Percentage of address space in use by end-sites: 78.8
Total number of prefixes smaller than registry allocations: 145807
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 71212
Total APNIC prefixes after maximum aggregation: 25244
APNIC Deaggregation factor: 2.82
Prefixes being announced from the APNIC address blocks: 70673
Unique aggregates announced from the APNIC address blocks: 31644
APNIC Region origin ASes present in the Internet Routing Table: 3772
APNIC Prefixes per ASN: 18.74
APNIC Region origin ASes announcing only one prefix: 1038
APNIC Region transit ASes present in the Internet Routing Table: 585
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 24
Number of APNIC addresses announced to Internet: 493150656
Equivalent to 29 /8s, 100 /16s and 225 /24s
Percentage of available APNIC address space announced: 84.0
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
APNIC Address Blocks 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, 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,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 126713
Total ARIN prefixes after maximum aggregation: 66865
ARIN Deaggregation factor: 1.90
Prefixes being announced from the ARIN address blocks: 127023
Unique aggregates announced from the ARIN address blocks: 52683
ARIN Region origin ASes present in the Internet Routing Table: 13233
ARIN Prefixes per ASN: 9.60
ARIN Region origin ASes announcing only one prefix: 5116
ARIN Region transit ASes present in the Internet Routing Table: 1313
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 24
Number of ARIN addresses announced to Internet: 1013504661
Equivalent to 60 /8s, 104 /16s and 218 /24s
Percentage of available ARIN address space announced: 88.8
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
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, 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, 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: 69222
Total RIPE prefixes after maximum aggregation: 40164
RIPE Deaggregation factor: 1.72
Prefixes being announced from the RIPE address blocks: 69094
Unique aggregates announced from the RIPE address blocks: 45683
RIPE Region origin ASes present in the Internet Routing Table: 13476
RIPE Prefixes per ASN: 5.13
RIPE Region origin ASes announcing only one prefix: 7011
RIPE Region transit ASes present in the Internet Routing Table: 2031
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 500266792
Equivalent to 29 /8s, 209 /16s and 119 /24s
Percentage of available RIPE address space announced: 99.4
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
RIPE Address Blocks 25/8, 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, 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: 27910
Total LACNIC prefixes after maximum aggregation: 6228
LACNIC Deaggregation factor: 4.48
Prefixes being announced from the LACNIC address blocks: 27910
Unique aggregates announced from the LACNIC address blocks: 14130
LACNIC Region origin ASes present in the Internet Routing Table: 1178
LACNIC Prefixes per ASN: 23.69
LACNIC Region origin ASes announcing only one prefix: 375
LACNIC Region transit ASes present in the Internet Routing Table: 195
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 22
Number of LACNIC addresses announced to Internet: 73768464
Equivalent to 4 /8s, 101 /16s and 158 /24s
Percentage of available LACNIC address space announced: 73.3
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247
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: 6054
Total AfriNIC prefixes after maximum aggregation: 1578
AfriNIC Deaggregation factor: 3.84
Prefixes being announced from the AfriNIC address blocks: 6449
Unique aggregates announced from the AfriNIC address blocks: 2658
AfriNIC Region origin ASes present in the Internet Routing Table: 315
AfriNIC Prefixes per ASN: 20.47
AfriNIC Region origin ASes announcing only one prefix: 90
AfriNIC Region transit ASes present in the Internet Routing Table: 68
Average AfriNIC Region AS path length visible: 4.1
Max AfriNIC Region AS path length visible: 19
Number of AfriNIC addresses announced to Internet: 20182784
Equivalent to 1 /8s, 51 /16s and 247 /24s
Percentage of available AfriNIC address space announced: 60.1
AfriNIC AS Blocks 36864-37887 & 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 1566 6982 427 Korea Telecom (KIX)
17488 1554 140 103 Hathway IP Over Cable Interne
4755 1231 292 141 Videsh Sanchar Nigam Ltd. Aut
9583 1105 87 536 Sify Limited
18101 951 201 31 Reliance Infocom Ltd Internet
4134 947 18165 390 CHINANET-BACKBONE
23577 914 34 760 KRNIC
7545 822 198 102 TPG Internet Pty Ltd
9829 809 625 18 BSNL National Internet Backbo
24560 748 256 157 Bharti Airtel Ltd.
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 4176 3624 310 bellsouth.net, inc.
20115 1978 1478 670 Charter Communications
4323 1917 1049 385 Time Warner Telecom
1785 1735 714 137 AppliedTheory Corporation
7018 1495 5916 1055 AT&T WorldNet Services
6478 1396 281 260 AT&T Worldnet Services
2386 1284 624 941 AT&T Data Communications Serv
3356 1228 10980 439 Level 3 Communications, LLC
11492 1120 208 12 Cable One
22773 1095 2604 66 Cox Communications, Inc.
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 619 1821 343 UUNET - Commercial IP service
30890 487 92 197 Evolva Telecom
12479 477 578 6 Uni2 Autonomous System
3292 467 1904 396 TDC Tele Danmark
35805 385 40 5 United Telecom AS
3301 376 1412 308 TeliaNet Sweden
9198 368 138 12 Kazakhtelecom Corporate Sales
8866 358 109 22 Bulgarian Telecommunication C
3320 353 7067 303 Deutsche Telekom AG
3215 344 3081 109 France Telecom Transpac
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7303 2248 336 93 Telecom Argentina Stet-France
8151 1472 2899 241 Uninet S.A. de C.V.
10620 1013 226 100 TVCABLE BOGOTA
28573 706 608 62 Types of queries are: POCs, o
22047 542 302 14 Types of queries are: POCs, o
11830 477 310 58 Instituto Costarricense de El
7738 441 862 30 Telecomunicacoes da Bahia S.A
11172 441 99 70 Alestra
14117 436 29 11 Telefonica del Sur S.A.
6471 421 96 31 ENTEL CHILE S.A.
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 989 188 7 TEDATA
24863 900 94 60 LINKdotNET AS number
20858 296 34 6 EgyNet
3741 274 856 235 The Internet Solution
2018 202 180 142 TENET-1
6713 175 166 16 Itissalat Al-MAGHRIB
29571 139 14 6 Ci Telecom Autonomous system
33776 123 7 11 Starcomms Nigeria Limited
5536 122 8 13 Internet Egypt Network
5713 116 508 67 Telkom SA Ltd
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 4176 3624 310 bellsouth.net, inc.
7303 2248 336 93 Telecom Argentina Stet-France
20115 1978 1478 670 Charter Communications
4323 1917 1049 385 Time Warner Telecom
1785 1735 714 137 AppliedTheory Corporation
4766 1566 6982 427 Korea Telecom (KIX)
17488 1554 140 103 Hathway IP Over Cable Interne
7018 1495 5916 1055 AT&T WorldNet Services
8151 1472 2899 241 Uninet S.A. de C.V.
6478 1396 281 260 AT&T Worldnet Services
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7303 2248 2155 Telecom Argentina Stet-France
1785 1735 1598 AppliedTheory Corporation
4323 1917 1532 Time Warner Telecom
17488 1554 1451 Hathway IP Over Cable Interne
20115 1978 1308 Charter Communications
8151 1472 1231 Uninet S.A. de C.V.
4766 1566 1139 Korea Telecom (KIX)
6478 1396 1136 AT&T Worldnet Services
11492 1120 1108 Cable One
4755 1231 1090 Videsh Sanchar Nigam Ltd. Aut
Complete listing at http://thyme.apnic.net/rviews/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 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
32326 UNALLOCATED 12.40.49.0/24 7018 AT&T WorldNet Servic
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.29.248.71/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
10.29.248.71/32 286 KPNQwest Backbone AS
36.126.8.255/8 77 Johns Hopkins University Appl
41.223.92.0/22 36936 >>UNKNOWN<<
41.223.176.0/22 36981 >>UNKNOWN<<
41.223.189.0/24 26452 Local Communications Networks
43.245.0.0/16 7502 Internetwork Kyoto
43.245.96.0/20 7502 Internetwork Kyoto
43.245.112.0/20 7502 Internetwork Kyoto
43.245.192.0/20 7502 Internetwork Kyoto
43.245.208.0/20 7502 Internetwork Kyoto
Complete listing at http://thyme.apnic.net/rviews/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 /8:20 /9:10 /10:25 /11:62 /12:177
/13:354 /14:629 /15:1188 /16:10665 /17:4917 /18:8463
/19:17530 /20:20830 /21:20868 /22:27817 /23:27054 /24:156154
/25:829 /26:1041 /27:524 /28:464 /29:712 /30:825
/31:3 /32:314
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2708 4176 bellsouth.net, inc.
7303 1745 2248 Telecom Argentina Stet-France
17488 1300 1554 Hathway IP Over Cable Interne
4766 1245 1566 Korea Telecom (KIX)
1785 1206 1735 AppliedTheory Corporation
11492 1047 1120 Cable One
18566 1043 1062 Covad Communications
20115 993 1978 Charter Communications
4323 964 1917 Time Warner Telecom
9583 957 1105 Sify Limited
Complete listing at http://thyme.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:13 8:214 12:2147 13:7 15:21 16:3
17:5 20:35 24:1160 32:151 34:2 38:599
40:97 41:1737 43:1 44:2 47:20 52:6
55:2 56:2 57:38 58:597 59:610 60:460
61:960 62:1133 63:2029 64:3639 65:2401 66:3493
67:1776 68:964 69:2737 70:557 71:174 72:1698
73:2 74:1741 75:182 76:321 77:864 78:580
79:379 80:928 81:822 82:568 83:429 84:644
85:1050 86:384 87:676 88:373 89:1475 90:52
91:2527 92:397 93:1136 94:1153 95:921 96:165
97:269 98:272 99:30 109:1 110:184 111:398
112:128 113:149 114:243 115:312 116:1145 117:572
118:322 119:774 120:122 121:660 122:1248 123:761
124:1065 125:1353 128:224 129:220 130:171 131:420
132:75 133:9 134:174 135:42 136:225 137:161
138:171 139:96 140:444 141:125 142:386 143:332
144:382 145:49 146:390 147:157 148:531 149:291
150:207 151:186 152:210 153:160 154:2 155:279
156:167 157:306 158:112 159:350 160:291 161:164
162:270 163:159 164:276 165:526 166:473 167:367
168:707 169:167 170:512 171:42 172:2 173:407
174:332 175:1 178:1 180:17 182:1 186:149
187:185 188:751 189:695 190:3414 192:5807 193:4381
194:3409 195:2884 196:1123 198:3555 199:3355 200:5499
201:1446 202:7787 203:8292 204:3892 205:2300 206:2404
207:2719 208:3961 209:3418 210:2547 211:1136 212:1645
213:1713 214:174 215:32 216:4339 217:1339 218:416
219:454 220:1112 221:462 222:323
End of report