Routing Table Report 00:00 GMT Mon 30 Nov, 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: 309795
Prefixes after maximum aggregation: 142602
Deaggregation factor: 2.17
Unique aggregates announced to Internet: 100840
Total ASes present in the Internet Routing Table: 32859
Prefixes per ASN: 9.43
Origin-only ASes present in the Internet Routing Table: 28490
Origin ASes announcing only one prefix: 13878
Transit ASes present in the Internet Routing Table: 4369
Transit-only ASes present in the Internet Routing Table: 105
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 41
Max AS path prepend of ASN (22394) 36
Prefixes from unregistered ASNs in the Routing Table: 869
Unregistered ASNs in the Routing Table: 207
Number of 32-bit ASNs allocated by the RIRs: 341
Prefixes from 32-bit ASNs in the Routing Table: 289
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 206
Number of addresses announced to Internet: 1219474002
Equivalent to 72 /8s, 175 /16s and 178 /24s
Percentage of available address space announced: 32.9
Percentage of allocated address space announced: 37.3
Percentage of available address space allocated: 88.2
Percentage of address space in use by end-sites: 80.2
Total number of prefixes smaller than registry allocations: 149618
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 73526
Total APNIC prefixes after maximum aggregation: 25454
APNIC Deaggregation factor: 2.89
Prefixes being announced from the APNIC address blocks: 70337
Unique aggregates announced from the APNIC address blocks: 20599
APNIC Region origin ASes present in the Internet Routing Table: 3877
APNIC Prefixes per ASN: 18.14
APNIC Region origin ASes announcing only one prefix: 1066
APNIC Region transit ASes present in the Internet Routing Table: 596
Average APNIC Region AS path length visible: 5.2
Max APNIC Region AS path length visible: 26
Number of APNIC addresses announced to Internet: 224135680
Equivalent to 13 /8s, 92 /16s and 10 /24s
Percentage of available APNIC address space announced: 37.1
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: 130201
Total ARIN prefixes after maximum aggregation: 67616
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 104026
Unique aggregates announced from the ARIN address blocks: 24872
ARIN Region origin ASes present in the Internet Routing Table: 13399
ARIN Prefixes per ASN: 7.76
ARIN Region origin ASes announcing only one prefix: 5179
ARIN Region transit ASes present in the Internet Routing Table: 1367
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 41
Number of ARIN addresses announced to Internet: 473258017
Equivalent to 28 /8s, 53 /16s and 88 /24s
Percentage of available ARIN address space announced: 41.5
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: 72388
Total RIPE prefixes after maximum aggregation: 41180
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 65555
Unique aggregates announced from the RIPE address blocks: 19821
RIPE Region origin ASes present in the Internet Routing Table: 13841
RIPE Prefixes per ASN: 4.74
RIPE Region origin ASes announcing only one prefix: 7151
RIPE Region transit ASes present in the Internet Routing Table: 2079
Average RIPE Region AS path length visible: 4.9
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 105591180
Equivalent to 6 /8s, 75 /16s and 49 /24s
Percentage of available RIPE address space announced: 19.7
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, 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: 27275
Total LACNIC prefixes after maximum aggregation: 6479
LACNIC Deaggregation factor: 4.21
Prefixes being announced from the LACNIC address blocks: 25589
Unique aggregates announced from the LACNIC address blocks: 13584
LACNIC Region origin ASes present in the Internet Routing Table: 1216
LACNIC Prefixes per ASN: 21.04
LACNIC Region origin ASes announcing only one prefix: 385
LACNIC Region transit ASes present in the Internet Routing Table: 203
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 68723472
Equivalent to 4 /8s, 24 /16s and 163 /24s
Percentage of available LACNIC address space announced: 68.3
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: 5857
Total AfriNIC prefixes after maximum aggregation: 1554
AfriNIC Deaggregation factor: 3.77
Prefixes being announced from the AfriNIC address blocks: 4245
Unique aggregates announced from the AfriNIC address blocks: 1325
AfriNIC Region origin ASes present in the Internet Routing Table: 334
AfriNIC Prefixes per ASN: 12.71
AfriNIC Region origin ASes announcing only one prefix: 97
AfriNIC Region transit ASes present in the Internet Routing Table: 74
Average AfriNIC Region AS path length visible: 4.1
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 12907520
Equivalent to 0 /8s, 196 /16s and 244 /24s
Percentage of available AfriNIC address space announced: 38.5
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 1602 7506 455 Korea Telecom (KIX)
17488 1447 143 133 Hathway IP Over Cable Interne
4755 1277 295 147 Videsh Sanchar Nigam Ltd. Aut
9583 1008 75 496 Sify Limited
18101 986 204 35 Reliance Infocom Ltd Internet
4134 955 19459 395 CHINANET-BACKBONE
7545 912 198 99 TPG Internet Pty Ltd
17974 863 265 61 PT TELEKOMUNIKASI INDONESIA
9829 848 664 24 BSNL National Internet Backbo
24560 807 293 176 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 4239 3877 308 bellsouth.net, inc.
4323 3750 1069 399 Time Warner Telecom
20115 2129 1485 664 Charter Communications
1785 1779 714 136 AppliedTheory Corporation
7018 1593 5798 1035 AT&T WorldNet Services
2386 1295 616 939 AT&T Data Communications Serv
3356 1235 10966 445 Level 3 Communications, LLC
6478 1188 251 315 AT&T Worldnet Services
11492 1142 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 515 98 208 Evolva Telecom
9198 471 138 12 Kazakhtelecom Corporate Sales
35805 468 40 5 United Telecom AS
3292 450 1906 392 TDC Tele Danmark
9116 441 296 30 Goldenlines main autonomous s
702 419 1837 337 UUNET - Commercial IP service
8551 379 354 41 Bezeq International
8866 376 110 23 Bulgarian Telecommunication C
3301 374 1411 302 TeliaNet Sweden
3320 358 7067 304 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 1568 2869 233 Uninet S.A. de C.V.
28573 1006 672 80 Types of queries are: POCs, o
10620 1004 224 138 TVCABLE BOGOTA
7303 665 350 95 Telecom Argentina Stet-France
22047 546 302 14 Types of queries are: POCs, o
11830 475 308 59 Instituto Costarricense de El
7738 453 858 29 Telecomunicacoes da Bahia S.A
11172 445 99 70 Alestra
14117 437 29 11 Telefonica del Sur S.A.
6503 425 162 184 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 1022 188 7 TEDATA
24863 753 130 46 LINKdotNET AS number
3741 274 857 234 The Internet Solution
2018 190 188 118 TENET-1
6713 176 167 12 Itissalat Al-MAGHRIB
29975 134 506 15 Vodacom
29571 133 15 8 Ci Telecom Autonomous system
33776 124 7 11 Starcomms Nigeria Limited
5536 121 8 18 Internet Egypt Network
5713 117 508 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 4239 3877 308 bellsouth.net, inc.
4323 3750 1069 399 Time Warner Telecom
20115 2129 1485 664 Charter Communications
1785 1779 714 136 AppliedTheory Corporation
4766 1602 7506 455 Korea Telecom (KIX)
7018 1593 5798 1035 AT&T WorldNet Services
8151 1568 2869 233 Uninet S.A. de C.V.
17488 1447 143 133 Hathway IP Over Cable Interne
2386 1295 616 939 AT&T Data Communications Serv
4755 1277 295 147 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 3750 3351 Time Warner Telecom
1785 1779 1643 AppliedTheory Corporation
20115 2129 1465 Charter Communications
8151 1568 1335 Uninet S.A. de C.V.
17488 1447 1314 Hathway IP Over Cable Interne
4766 1602 1147 Korea Telecom (KIX)
4755 1277 1130 Videsh Sanchar Nigam Ltd. Aut
11492 1142 1128 Cable One
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 /8:22 /9:10 /10:25 /11:65 /12:181
/13:367 /14:645 /15:1233 /16:10787 /17:5084 /18:8704
/19:18068 /20:21742 /21:21849 /22:28146 /23:28076 /24:160697
/25:742 /26:984 /27:398 /28:442 /29:752 /30:496
/31:3 /32:277
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2777 4239 bellsouth.net, inc.
4323 2366 3750 Time Warner Telecom
4766 1271 1602 Korea Telecom (KIX)
1785 1246 1779 AppliedTheory Corporation
17488 1220 1447 Hathway IP Over Cable Interne
20115 1133 2129 Charter Communications
11492 1064 1142 Cable One
18566 1040 1059 Covad Communications
7018 957 1593 AT&T WorldNet Services
8452 920 1022 TEDATA
Complete listing at http://thyme.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
2:1 4:14 8:239 12:2067 13:8 15:22
16:3 17:5 20:36 24:1307 32:151 34:2
38:626 40:99 41:1778 43:1 44:2 46:1
47:20 52:6 55:2 56:2 57:36 58:640
59:612 60:444 61:982 62:970 63:2017 64:3717
65:2370 66:4133 67:1788 68:1025 69:2826 70:630
71:168 72:1775 73:2 74:2020 75:199 76:355
77:850 78:607 79:410 80:955 81:818 82:515
83:457 84:536 85:1020 86:394 87:702 88:445
89:1592 90:63 91:2665 92:451 93:1153 94:1334
95:835 96:194 97:277 98:430 99:27 109:171
110:276 111:466 112:152 113:181 114:285 115:382
116:1092 117:594 118:365 119:802 120:139 121:709
122:1293 123:797 124:1056 125:1366 128:215 129:204
130:134 131:453 132:82 133:16 134:187 135:41
136:232 137:166 138:237 139:95 140:463 141:122
142:382 143:341 144:387 145:52 146:391 147:172
148:562 149:192 150:148 151:173 152:220 153:161
154:2 155:272 156:166 157:315 158:97 159:349
160:294 161:175 162:277 163:163 164:316 165:472
166:490 167:391 168:754 169:159 170:592 171:42
172:1 173:394 174:404 180:205 183:134 184:1
186:188 187:201 188:1356 189:692 190:3306 192:5768
193:4338 194:3395 195:2877 196:1179 198:3577 199:3382
200:5273 201:1457 202:8095 203:8285 204:3982 205:2167
206:2419 207:3047 208:3981 209:3412 210:2545 211:1183
212:1706 213:1659 214:245 215:57 216:4486 217:1367
218:481 219:450 220:1142 221:449 222:300
End of report