Routing Table Report 00:00 GMT Tue 15 Dec, 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: 311702
Prefixes after maximum aggregation: 143193
Deaggregation factor: 2.18
Unique aggregates announced to Internet: 141295
Total ASes present in the Internet Routing Table: 32975
Prefixes per ASN: 9.45
Origin-only ASes present in the Internet Routing Table: 28538
Origin ASes announcing only one prefix: 13937
Transit ASes present in the Internet Routing Table: 4437
Transit-only ASes present in the Internet Routing Table: 101
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 38
Max AS path prepend of ASN (48687) 25
Prefixes from unregistered ASNs in the Routing Table: 758
Unregistered ASNs in the Routing Table: 163
Number of 32-bit ASNs allocated by the RIRs: 355
Prefixes from 32-bit ASNs in the Routing Table: 315
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 164
Number of addresses announced to Internet: 1869698031
Equivalent to 111 /8s, 113 /16s and 83 /24s
Percentage of available address space announced: 50.4
Percentage of allocated address space announced: 57.2
Percentage of available address space allocated: 88.2
Percentage of address space in use by end-sites: 80.4
Total number of prefixes smaller than registry allocations: 150748
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 74572
Total APNIC prefixes after maximum aggregation: 25544
APNIC Deaggregation factor: 2.92
Prefixes being announced from the APNIC address blocks: 71352
Unique aggregates announced from the APNIC address blocks: 23851
APNIC Region origin ASes present in the Internet Routing Table: 3889
APNIC Prefixes per ASN: 18.35
APNIC Region origin ASes announcing only one prefix: 1068
APNIC Region transit ASes present in the Internet Routing Table: 610
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 23
Number of APNIC addresses announced to Internet: 309008128
Equivalent to 18 /8s, 107 /16s and 23 /24s
Percentage of available APNIC address space announced: 51.2
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 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,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 130664
Total ARIN prefixes after maximum aggregation: 67726
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 104648
Unique aggregates announced from the ARIN address blocks: 38821
ARIN Region origin ASes present in the Internet Routing Table: 13423
ARIN Prefixes per ASN: 7.80
ARIN Region origin ASes announcing only one prefix: 5188
ARIN Region transit ASes present in the Internet Routing Table: 1360
Average ARIN Region AS path length visible: 4.2
Max ARIN Region AS path length visible: 25
Number of ARIN addresses announced to Internet: 734042145
Equivalent to 43 /8s, 192 /16s and 152 /24s
Percentage of available ARIN address space announced: 64.3
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, 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: 72321
Total RIPE prefixes after maximum aggregation: 41497
RIPE Deaggregation factor: 1.74
Prefixes being announced from the RIPE address blocks: 65681
Unique aggregates announced from the RIPE address blocks: 42801
RIPE Region origin ASes present in the Internet Routing Table: 13917
RIPE Prefixes per ASN: 4.72
RIPE Region origin ASes announcing only one prefix: 7205
RIPE Region transit ASes present in the Internet Routing Table: 2142
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 38
Number of RIPE addresses announced to Internet: 408258473
Equivalent to 24 /8s, 85 /16s and 135 /24s
Percentage of available RIPE address space announced: 76.0
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, 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, 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: 27712
Total LACNIC prefixes after maximum aggregation: 6523
LACNIC Deaggregation factor: 4.25
Prefixes being announced from the LACNIC address blocks: 26003
Unique aggregates announced from the LACNIC address blocks: 13824
LACNIC Region origin ASes present in the Internet Routing Table: 1224
LACNIC Prefixes per ASN: 21.24
LACNIC Region origin ASes announcing only one prefix: 383
LACNIC Region transit ASes present in the Internet Routing Table: 201
Average LACNIC Region AS path length visible: 4.8
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 69134608
Equivalent to 4 /8s, 30 /16s and 233 /24s
Percentage of available LACNIC address space announced: 68.7
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: 5865
Total AfriNIC prefixes after maximum aggregation: 1576
AfriNIC Deaggregation factor: 3.72
Prefixes being announced from the AfriNIC address blocks: 4262
Unique aggregates announced from the AfriNIC address blocks: 1535
AfriNIC Region origin ASes present in the Internet Routing Table: 336
AfriNIC Prefixes per ASN: 12.68
AfriNIC Region origin ASes announcing only one prefix: 93
AfriNIC Region transit ASes present in the Internet Routing Table: 72
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 14319360
Equivalent to 0 /8s, 218 /16s and 127 /24s
Percentage of available AfriNIC address space announced: 42.7
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 1618 7508 456 Korea Telecom (KIX)
17488 1460 145 133 Hathway IP Over Cable Interne
4755 1274 295 145 Videsh Sanchar Nigam Ltd. Aut
9583 1024 78 512 Sify Limited
18101 993 204 35 Reliance Infocom Ltd Internet
4134 956 19459 394 CHINANET-BACKBONE
7545 918 198 97 TPG Internet Pty Ltd
17974 859 270 58 PT TELEKOMUNIKASI INDONESIA
9829 843 673 24 BSNL National Internet Backbo
24560 813 295 177 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 4194 3892 302 bellsouth.net, inc.
4323 3767 1067 398 Time Warner Telecom
20115 2132 1485 664 Charter Communications
1785 1791 699 135 AppliedTheory Corporation
7018 1585 5798 1027 AT&T WorldNet Services
2386 1290 614 939 AT&T Data Communications Serv
3356 1205 10928 420 Level 3 Communications, LLC
6478 1172 253 330 AT&T Worldnet Services
11492 1145 222 14 Cable One
22773 1123 2600 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
30890 517 98 208 Evolva Telecom
9198 473 202 13 Kazakhtelecom Corporate Sales
35805 467 40 5 United Telecom AS
9116 456 296 30 Goldenlines main autonomous s
3292 446 1887 388 TDC Tele Danmark
702 418 1837 336 UUNET - Commercial IP service
8866 380 110 23 Bulgarian Telecommunication C
8551 379 354 41 Bezeq International
3301 375 1412 304 TeliaNet Sweden
3320 360 7068 306 Deutsche Telekom AG
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
8151 1576 2898 230 Uninet S.A. de C.V.
28573 1014 674 82 Types of queries are: POCs, o
10620 1002 223 136 TVCABLE BOGOTA
7303 666 351 96 Telecom Argentina Stet-France
22047 545 302 14 Types of queries are: POCs, o
11830 473 308 59 Instituto Costarricense de El
7738 454 858 29 Telecomunicacoes da Bahia S.A
11172 446 99 70 Alestra
14117 437 29 11 Telefonica del Sur S.A.
6503 431 163 182 AVANTEL, 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 946 444 8 TEDATA
24863 706 142 51 LINKdotNET AS number
3741 273 857 233 The Internet Solution
2018 178 196 100 TENET-1
6713 176 167 12 Itissalat Al-MAGHRIB
29571 152 19 9 Ci Telecom Autonomous system
29975 134 506 15 Vodacom
33776 123 7 11 Starcomms Nigeria Limited
5536 121 8 18 Internet Egypt Network
5713 115 504 66 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 4194 3892 302 bellsouth.net, inc.
4323 3767 1067 398 Time Warner Telecom
20115 2132 1485 664 Charter Communications
1785 1791 699 135 AppliedTheory Corporation
4766 1618 7508 456 Korea Telecom (KIX)
7018 1585 5798 1027 AT&T WorldNet Services
8151 1576 2898 230 Uninet S.A. de C.V.
17488 1460 145 133 Hathway IP Over Cable Interne
2386 1290 614 939 AT&T Data Communications Serv
4755 1274 295 145 Videsh Sanchar Nigam Ltd. Aut
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 3767 3369 Time Warner Telecom
1785 1791 1656 AppliedTheory Corporation
20115 2132 1468 Charter Communications
8151 1576 1346 Uninet S.A. de C.V.
17488 1460 1327 Hathway IP Over Cable Interne
4766 1618 1162 Korea Telecom (KIX)
11492 1145 1131 Cable One
4755 1274 1129 Videsh Sanchar Nigam Ltd. Aut
22773 1123 1057 Cox Communications, Inc.
18566 1059 1049 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
Complete listing at http://thyme.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
2.0.0.0/16 12654 RIPE NCC RIS Project
2.1.0.0/21 12654 RIPE NCC RIS Project
2.1.24.0/24 12654 RIPE NCC RIS Project
41.223.92.0/22 36936 >>UNKNOWN<<
41.223.188.0/24 22351 Intelsat
41.223.189.0/24 26452 Local Communications Networks
46.0.0.0/16 12654 RIPE NCC RIS Project
46.1.0.0/21 12654 RIPE NCC RIS Project
46.1.24.0/24 12654 RIPE NCC RIS Project
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
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 /8:24 /9:10 /10:25 /11:65 /12:183
/13:385 /14:646 /15:1231 /16:10842 /17:5123 /18:8733
/19:18125 /20:21826 /21:21897 /22:28339 /23:28317 /24:161711
/25:746 /26:1027 /27:414 /28:464 /29:763 /30:520
/31:3 /32:283
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2733 4194 bellsouth.net, inc.
4323 2368 3767 Time Warner Telecom
4766 1269 1618 Korea Telecom (KIX)
1785 1256 1791 AppliedTheory Corporation
17488 1225 1460 Hathway IP Over Cable Interne
20115 1139 2132 Charter Communications
11492 1067 1145 Cable One
18566 1040 1059 Covad Communications
7018 952 1585 AT&T WorldNet Services
10620 907 1002 TVCABLE BOGOTA
Complete listing at http://thyme.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1 2:1 4:13 8:240 12:2066 13:9
15:22 16:3 17:8 20:37 24:1323 32:151
38:628 40:99 41:1786 43:1 44:3 46:1
47:21 52:6 55:2 56:2 57:36 58:648
59:659 60:445 61:1106 62:981 63:2025 64:3807
65:2382 66:4142 67:1782 68:1046 69:2831 70:683
71:246 72:1897 73:3 74:2044 75:202 76:360
77:849 78:603 79:407 80:958 81:801 82:506
83:445 84:545 85:1023 86:395 87:688 88:416
89:1584 90:65 91:2675 92:453 93:1129 94:1311
95:844 96:188 97:289 98:436 99:24 109:186
110:279 111:498 112:162 113:214 114:296 115:476
116:1089 117:593 118:371 119:803 120:144 121:841
122:1313 123:795 124:1019 125:1341 128:213 129:202
130:134 131:439 132:83 133:16 134:185 135:41
136:228 137:168 138:235 139:93 140:451 141:121
142:376 143:336 144:389 145:53 146:390 147:174
148:564 149:193 150:148 151:173 152:221 153:161
154:2 155:270 156:171 157:332 158:97 159:357
160:299 161:174 162:281 163:162 164:308 165:471
166:492 167:391 168:755 169:160 170:593 171:42
172:1 173:392 174:448 175:16 180:206 183:166
184:3 186:240 187:204 188:1082 189:695 190:3420
192:5754 193:4363 194:3413 195:2895 196:1196 198:3562
199:3395 200:5280 201:1481 202:8156 203:8308 204:3985
205:2165 206:2406 207:3044 208:3968 209:3418 210:2563
211:1174 212:1704 213:1672 214:232 215:45 216:4474
217:1365 218:486 219:485 220:1153 221:450 222:300
End of report