Routing Table Report 00:00 GMT Tue 26 May, 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: 290734
Prefixes after maximum aggregation: 136420
Deaggregation factor: 2.13
Unique aggregates announced to Internet: 141964
Total ASes present in the Internet Routing Table: 31347
Prefixes per ASN: 9.27
Origin-only ASes present in the Internet Routing Table: 27230
Origin ASes announcing only one prefix: 13314
Transit ASes present in the Internet Routing Table: 4117
Transit-only ASes present in the Internet Routing Table: 96
Average AS path length visible in the Internet Routing Table: 3.7
Max AS path length visible: 24
Max AS path prepend of ASN (12026) 22
Prefixes from unregistered ASNs in the Routing Table: 524
Unregistered ASNs in the Routing Table: 175
Number of 32-bit ASNs allocated by the RIRs: 162
Prefixes from 32-bit ASNs in the Routing Table: 35
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 877
Number of addresses announced to Internet: 2548529383
Equivalent to 151 /8s, 231 /16s and 120 /24s
Percentage of available address space announced: 68.8
Percentage of allocated address space announced: 79.6
Percentage of available address space allocated: 86.4
Percentage of address space in use by end-sites: 77.1
Total number of prefixes smaller than registry allocations: 143699
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 67023
Total APNIC prefixes after maximum aggregation: 23817
APNIC Deaggregation factor: 2.81
Prefixes being announced from the APNIC address blocks: 66432
Unique aggregates announced from the APNIC address blocks: 30672
APNIC Region origin ASes present in the Internet Routing Table: 3628
APNIC Prefixes per ASN: 18.31
APNIC Region origin ASes announcing only one prefix: 1003
APNIC Region transit ASes present in the Internet Routing Table: 566
Average APNIC Region AS path length visible: 3.9
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 450644896
Equivalent to 26 /8s, 220 /16s and 75 /24s
Percentage of available APNIC address space announced: 83.9
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
APNIC Address Blocks 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,
180/8, 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: 124713
Total ARIN prefixes after maximum aggregation: 66123
ARIN Deaggregation factor: 1.89
Prefixes being announced from the ARIN address blocks: 125199
Unique aggregates announced from the ARIN address blocks: 51568
ARIN Region origin ASes present in the Internet Routing Table: 13022
ARIN Prefixes per ASN: 9.61
ARIN Region origin ASes announcing only one prefix: 5013
ARIN Region transit ASes present in the Internet Routing Table: 1297
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 24
Number of ARIN addresses announced to Internet: 1008699605
Equivalent to 60 /8s, 31 /16s and 136 /24s
Percentage of available ARIN address space announced: 193.9
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 24/8, 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, 216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 66414
Total RIPE prefixes after maximum aggregation: 38761
RIPE Deaggregation factor: 1.71
Prefixes being announced from the RIPE address blocks: 65928
Unique aggregates announced from the RIPE address blocks: 43477
RIPE Region origin ASes present in the Internet Routing Table: 13057
RIPE Prefixes per ASN: 5.05
RIPE Region origin ASes announcing only one prefix: 6845
RIPE Region transit ASes present in the Internet Routing Table: 1956
Average RIPE Region AS path length visible: 4.1
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 480610537
Equivalent to 28 /8s, 165 /16s and 136 /24s
Percentage of available RIPE address space announced: 102.3
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 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: 25929
Total LACNIC prefixes after maximum aggregation: 5931
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 25746
Unique aggregates announced from the LACNIC address blocks: 13108
LACNIC Region origin ASes present in the Internet Routing Table: 1116
LACNIC Prefixes per ASN: 23.07
LACNIC Region origin ASes announcing only one prefix: 360
LACNIC Region transit ASes present in the Internet Routing Table: 184
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 22
Number of LACNIC addresses announced to Internet: 71426696
Equivalent to 4 /8s, 65 /16s and 226 /24s
Percentage of available LACNIC address space announced: 71.0
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: 6219
Total AfriNIC prefixes after maximum aggregation: 1448
AfriNIC Deaggregation factor: 4.29
Prefixes being announced from the AfriNIC address blocks: 6539
Unique aggregates announced from the AfriNIC address blocks: 2456
AfriNIC Region origin ASes present in the Internet Routing Table: 297
AfriNIC Prefixes per ASN: 22.02
AfriNIC Region origin ASes announcing only one prefix: 93
AfriNIC Region transit ASes present in the Internet Routing Table: 62
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 19269632
Equivalent to 1 /8s, 38 /16s and 8 /24s
Percentage of available AfriNIC address space announced: 57.4
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
17488 1591 130 103 Hathway IP Over Cable Interne
4766 1542 6930 402 Korea Telecom (KIX)
4755 1203 406 177 Videsh Sanchar Nigam Ltd. Aut
9583 1086 86 542 Sify Limited
4134 873 16781 374 CHINANET-BACKBONE
7545 780 198 102 TPG Internet Pty Ltd
18101 753 216 31 Reliance Infocom Ltd Internet
24560 693 230 175 Bharti Airtel Ltd.
9829 661 561 15 BSNL National Internet Backbo
9498 659 231 51 BHARTI BT INTERNET 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 4292 3646 323 bellsouth.net, inc.
20115 2064 1444 714 Charter Communications
4323 1851 1035 374 Time Warner Telecom
1785 1767 717 139 AppliedTheory Corporation
7018 1499 10006 1029 AT&T WorldNet Services
6478 1413 313 398 AT&T Worldnet Services
2386 1264 682 918 AT&T Data Communications Serv
3356 1228 10981 458 Level 3 Communications, LLC
11492 1102 193 12 Cable One
22773 1068 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
702 637 1864 346 UUNET - Commercial IP service
30890 539 88 200 Evolva Telecom
35228 517 144 5 Avatar Broadband Limited
3292 472 1894 396 TDC Tele Danmark
12479 448 578 6 Uni2 Autonomous System
8866 385 110 26 Bulgarian Telecommunication C
3301 369 1668 304 TeliaNet Sweden
3320 344 7066 295 Deutsche Telekom AG
3215 343 3041 108 France Telecom Transpac
35805 341 24 4 United Telecom AS
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 1928 275 77 Telecom Argentina Stet-France
8151 1447 2862 234 Uninet S.A. de C.V.
10620 927 207 108 TVCABLE BOGOTA
22047 614 302 14 Types of queries are: POCs, o
11830 485 292 60 Instituto Costarricense de El
28573 482 562 35 Types of queries are: POCs, o
6471 443 96 32 ENTEL CHILE S.A.
11172 440 102 70 Alestra
7738 414 794 28 Telecomunicacoes da Bahia S.A
16735 402 108 10 Companhia de Telecomunicacoes
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 1205 188 7 TEDATA
24863 876 81 39 LINKdotNET AS number
20858 309 34 5 EgyNet
3741 278 860 238 The Internet Solution
2018 244 215 143 TENET-1
6713 160 151 12 Itissalat Al-MAGHRIB
33783 152 10 8 EEPAD TISP TELECOM & INTERNET
29571 138 15 8 Ci Telecom Autonomous system
5536 123 8 9 Internet Egypt Network
33776 116 6 7 Starcomms Nigeria Limited
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 4292 3646 323 bellsouth.net, inc.
20115 2064 1444 714 Charter Communications
7303 1928 275 77 Telecom Argentina Stet-France
4323 1851 1035 374 Time Warner Telecom
1785 1767 717 139 AppliedTheory Corporation
17488 1591 130 103 Hathway IP Over Cable Interne
4766 1542 6930 402 Korea Telecom (KIX)
7018 1499 10006 1029 AT&T WorldNet Services
8151 1447 2862 234 Uninet S.A. de C.V.
6478 1413 313 398 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 1928 1851 Telecom Argentina Stet-France
1785 1767 1628 AppliedTheory Corporation
17488 1591 1488 Hathway IP Over Cable Interne
4323 1851 1477 Time Warner Telecom
20115 2064 1350 Charter Communications
8151 1447 1213 Uninet S.A. de C.V.
8452 1205 1198 TEDATA
4766 1542 1140 Korea Telecom (KIX)
11492 1102 1090 Cable One
18566 1062 1052 Covad Communications
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
198.18.0.0/15 10026 IXNet Hong Kong Limited
Complete listing at http://thyme.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
1.0.0.0/8 10026 IXNet Hong Kong Limited
2.0.0.0/8 10026 IXNet Hong Kong Limited
5.0.0.0/8 10026 IXNet Hong Kong Limited
10.29.248.71/32 286 KPNQwest Backbone AS
14.0.0.0/8 10026 IXNet Hong Kong Limited
23.0.0.0/8 10026 IXNet Hong Kong Limited
27.0.0.0/8 10026 IXNet Hong Kong Limited
31.0.0.0/8 10026 IXNet Hong Kong Limited
36.0.0.0/8 10026 IXNet Hong Kong Limited
37.0.0.0/8 10026 IXNet Hong Kong Limited
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 /8:49 /9:10 /10:20 /11:59 /12:170
/13:347 /14:603 /15:1159 /16:10504 /17:4761 /18:8149
/19:17033 /20:20286 /21:20282 /22:26901 /23:26111 /24:152834
/25:208 /26:281 /27:220 /28:243 /29:232 /30:152
/31:1 /32:119
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2800 4292 bellsouth.net, inc.
7303 1448 1928 Telecom Argentina Stet-France
17488 1309 1591 Hathway IP Over Cable Interne
4766 1235 1542 Korea Telecom (KIX)
8452 1174 1205 TEDATA
1785 1172 1767 AppliedTheory Corporation
20115 1109 2064 Charter Communications
18566 1043 1062 Covad Communications
11492 1037 1102 Cable One
2386 974 1264 AT&T Data Communications Serv
Complete listing at http://thyme.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:13 8:203 12:2239 13:10 15:19 16:3
17:4 20:35 24:1104 32:146 34:2 38:561
40:97 41:1988 43:1 44:2 47:22 52:4
55:2 56:3 57:38 58:590 59:637 60:459
61:1098 62:1133 63:2019 64:3720 65:2378 66:3660
67:1600 68:804 69:2631 70:527 71:149 72:1694
73:2 74:1536 75:176 76:307 77:857 78:568
79:336 80:970 81:818 82:561 83:431 84:620
85:1035 86:406 87:673 88:355 89:1442 90:62
91:2234 92:327 93:1065 94:1235 95:1172 96:131
97:222 98:229 99:19 109:1 110:124 112:124
113:109 114:270 115:288 116:1166 117:530 118:294
119:698 120:144 121:738 122:1033 123:679 124:969
125:1325 128:222 129:235 130:125 131:412 132:75
133:9 134:186 135:39 136:222 137:155 138:160
139:89 140:442 141:109 142:380 143:340 144:363
145:47 146:378 147:154 148:518 149:306 150:176
151:199 152:147 153:144 154:2 155:275 156:169
157:298 158:116 159:312 160:282 161:142 162:270
163:152 164:477 165:503 166:275 167:364 168:676
169:166 170:505 171:40 172:10 173:283 174:213
178:1 180:1 183:1 186:16 187:121 188:20
189:458 190:2967 192:5851 193:4324 194:3396 195:2801
196:1078 198:3643 199:3350 200:5604 201:1424 202:8027
203:8178 204:3812 205:2271 206:2466 207:2758 208:3921
209:3408 210:2668 211:1141 212:1522 213:1725 214:77
215:30 216:4677 217:1266 218:373 219:434 220:1220
221:472 222:294
End of report