BGP Routing: 2011-01-09

The Border Gateway Protocol (BGP) is the protocol backing the core routing decisions on the Internet. It maintains a table of IP networks or 'prefixes' which designate network reachability among autonomous systems (AS). It is described as a path vector protocol. BGP does not use traditional Interior Gateway Protocol (IGP) metrics, but makes routing decisions based on path, network policies and/or rulesets. For this reason, it is more appropriately termed a reachability protocol rather than routing protocol.

Saturday, January 15, 2011

[bgp-stats] Routing Table Report - RouteViews-3 view

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sun 16 Jan, 2011

NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/rviews/

Analysis Summary
----------------

BGP routing table entries examined: 346263
Prefixes after maximum aggregation: 155998
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 168663
Total ASes present in the Internet Routing Table: 35666
Prefixes per ASN: 9.71
Origin-only ASes present in the Internet Routing Table: 30696
Origin ASes announcing only one prefix: 14897
Transit ASes present in the Internet Routing Table: 4970
Transit-only ASes present in the Internet Routing Table: 125
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 32
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 391
Unregistered ASNs in the Routing Table: 152
Number of 32-bit ASNs allocated by the RIRs: 1008
Prefixes from 32-bit ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 75
Prefixes being announced from unallocated address space: 244
Number of addresses announced to Internet: 2434857524
Equivalent to 145 /8s, 32 /16s and 250 /24s
Percentage of available address space announced: 65.7
Percentage of allocated address space announced: 67.8
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 87.6
Total number of prefixes smaller than registry allocations: 142349

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 83029
Total APNIC prefixes after maximum aggregation: 27932
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 80006
Unique aggregates announced from the APNIC address blocks: 35410
APNIC Region origin ASes present in the Internet Routing Table: 4271
APNIC Prefixes per ASN: 18.73
APNIC Region origin ASes announcing only one prefix: 1219
APNIC Region transit ASes present in the Internet Routing Table: 685
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 579882211
Equivalent to 34 /8s, 144 /16s and 76 /24s
Percentage of available APNIC address space announced: 78.6

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, 36/8, 42/8, 43/8, 49/8,
58/8, 59/8, 60/8, 61/8, 101/8, 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: 140828
Total ARIN prefixes after maximum aggregation: 72569
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 111634
Unique aggregates announced from the ARIN address blocks: 44221
ARIN Region origin ASes present in the Internet Routing Table: 14139
ARIN Prefixes per ASN: 7.90
ARIN Region origin ASes announcing only one prefix: 5390
ARIN Region transit ASes present in the Internet Routing Table: 1489
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 27
Number of ARIN addresses announced to Internet: 778491529
Equivalent to 46 /8s, 102 /16s and 214 /24s
Percentage of available ARIN address space announced: 65.4

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, 23/8, 24/8, 26/8, 28/8,
29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8,
40/8, 44/8, 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, 100/8,
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: 83614
Total RIPE prefixes after maximum aggregation: 46188
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 76245
Unique aggregates announced from the RIPE address blocks: 47930
RIPE Region origin ASes present in the Internet Routing Table: 15217
RIPE Prefixes per ASN: 5.01
RIPE Region origin ASes announcing only one prefix: 7714
RIPE Region transit ASes present in the Internet Routing Table: 2382
Average RIPE Region AS path length visible: 4.5
Max RIPE Region AS path length visible: 28
Number of RIPE addresses announced to Internet: 454838057
Equivalent to 27 /8s, 28 /16s and 71 /24s
Percentage of available RIPE address space announced: 75.3

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, 56320-58367
196608-198655
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 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: 31082
Total LACNIC prefixes after maximum aggregation: 7227
LACNIC Deaggregation factor: 4.30
Prefixes being announced from the LACNIC address blocks: 29957
Unique aggregates announced from the LACNIC address blocks: 15630
LACNIC Region origin ASes present in the Internet Routing Table: 1418
LACNIC Prefixes per ASN: 21.13
LACNIC Region origin ASes announcing only one prefix: 435
LACNIC Region transit ASes present in the Internet Routing Table: 253
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 79058432
Equivalent to 4 /8s, 182 /16s and 86 /24s
Percentage of available LACNIC address space announced: 58.9

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 181/8, 186/8, 187/8, 189/8, 190/8, 200/8,
201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 7458
Total AfriNIC prefixes after maximum aggregation: 1966
AfriNIC Deaggregation factor: 3.79
Prefixes being announced from the AfriNIC address blocks: 5754
Unique aggregates announced from the AfriNIC address blocks: 1865
AfriNIC Region origin ASes present in the Internet Routing Table: 435
AfriNIC Prefixes per ASN: 13.23
AfriNIC Region origin ASes announcing only one prefix: 139
AfriNIC Region transit ASes present in the Internet Routing Table: 92
Average AfriNIC Region AS path length visible: 4.2
Max AfriNIC Region AS path length visible: 32
Number of AfriNIC addresses announced to Internet: 21738496
Equivalent to 1 /8s, 75 /16s and 180 /24s
Percentage of available AfriNIC address space announced: 43.2

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 105/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
4766 1755 9484 512 Korea Telecom (KIX)
7545 1547 298 75 TPG Internet Pty Ltd
17974 1408 459 28 PT TELEKOMUNIKASI INDONESIA
4755 1393 376 156 Videsh Sanchar Nigam Ltd. Aut
24560 1093 317 181 Bharti Airtel Ltd.
9583 1044 77 490 Sify Limited
17488 964 162 103 Hathway IP Over Cable Interne
18101 913 116 139 Reliance Infocom Ltd Internet
4808 910 1942 255 CNCGROUP IP network: China169
9829 861 728 47 BSNL National Internet Backbo

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3713 3855 267 bellsouth.net, inc.
4323 2645 1077 403 Time Warner Telecom
19262 1913 4941 286 Verizon Global Networks
1785 1786 697 133 AppliedTheory Corporation
20115 1554 1533 641 Charter Communications
6478 1451 288 74 AT&T Worldnet Services
7018 1371 5659 886 AT&T WorldNet Services
2386 1298 554 933 AT&T Data Communications Serv
11492 1277 234 71 Cable One
22773 1269 2864 74 Cox Communications, Inc.

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
286 962 710 153 KPNQwest Backbone AS
3292 501 2010 385 TDC Tele Danmark
6830 501 1763 307 UPC Distribution Services
9116 490 328 32 Goldenlines main autonomous s
34984 457 97 137 Tellcom Iletisim Hizmetleri
8866 440 133 23 Bulgarian Telecommunication C
9198 432 266 14 Kazakhtelecom Corporate Sales
8551 404 355 38 Bezeq International
12479 402 577 6 Uni2 Autonomous System
702 399 1849 312 UUNET - Commercial IP service

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
10620 1349 251 167 TVCABLE BOGOTA
8151 1318 2593 361 Uninet S.A. de C.V.
28573 1230 951 79 Types of queries are: POCs, o
6503 1143 355 79 AVANTEL, S.A.
7303 843 458 101 Telecom Argentina Stet-France
14420 603 50 88 Types of queries are: POCs, o
22047 566 310 15 Types of queries are: POCs, o
3816 498 217 98 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 455 33 33 Telefonica del Sur S.A.

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8452 792 445 11 TEDATA
24863 750 147 39 LINKdotNET AS number
36992 636 281 156 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 216 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
29571 202 19 13 Ci Telecom Autonomous system
33776 184 12 14 Starcomms Nigeria Limited
2018 166 277 64 TENET-1
16637 158 440 89 Johnnic e-Ventures

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3713 3855 267 bellsouth.net, inc.
4323 2645 1077 403 Time Warner Telecom
19262 1913 4941 286 Verizon Global Networks
1785 1786 697 133 AppliedTheory Corporation
4766 1755 9484 512 Korea Telecom (KIX)
20115 1554 1533 641 Charter Communications
7545 1547 298 75 TPG Internet Pty Ltd
6478 1451 288 74 AT&T Worldnet Services
17974 1408 459 28 PT TELEKOMUNIKASI INDONESIA
4755 1393 376 156 Videsh Sanchar Nigam Ltd. Aut

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
4323 2645 2242 Time Warner Telecom
1785 1786 1653 AppliedTheory Corporation
19262 1913 1627 Verizon Global Networks
7545 1547 1472 TPG Internet Pty Ltd
17974 1408 1380 PT TELEKOMUNIKASI INDONESIA
6478 1451 1377 AT&T Worldnet Services
4766 1755 1243 Korea Telecom (KIX)
4755 1393 1237 Videsh Sanchar Nigam Ltd. Aut
11492 1277 1206 Cable One
22773 1269 1195 Cox Communications, Inc.

Complete listing at http://thyme.rand.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 4323 Time Warner Telecom
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 12.39.155.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic

Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix Origin AS Description
10.29.244.56/29 286 KPNQwest Backbone AS
10.29.245.1/32 286 KPNQwest Backbone AS
10.29.245.2/32 286 KPNQwest Backbone AS
10.29.245.15/32 286 KPNQwest Backbone AS
10.29.245.19/32 286 KPNQwest Backbone AS
10.29.245.20/32 286 KPNQwest Backbone AS
10.29.245.21/32 286 KPNQwest Backbone AS
10.29.245.22/32 286 KPNQwest Backbone AS
10.29.245.25/32 286 KPNQwest Backbone AS
10.29.245.26/32 286 KPNQwest Backbone AS

Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
5.0.0.0/16 12654 RIPE NCC RIS Project
5.0.0.0/8 237 Merit Network
5.1.0.0/21 12654 RIPE NCC RIS Project
5.1.24.0/24 12654 RIPE NCC RIS Project
24.129.192.0/19 7922 Continental Cablevision
37.0.0.0/16 12654 RIPE NCC RIS Project
37.0.0.0/8 237 Merit Network
37.1.0.0/21 12654 RIPE NCC RIS Project
37.1.24.0/24 12654 RIPE NCC RIS Project
36.126.8.255/8 53631 Ottawa Catholic School Board

Complete listing at http://thyme.rand.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 /8:26 /9:10 /10:25 /11:71 /12:214
/13:437 /14:764 /15:1373 /16:11555 /17:5827 /18:9567
/19:19220 /20:24789 /21:24774 /22:32688 /23:31782 /24:180268
/25:325 /26:351 /27:181 /28:361 /29:300 /30:681
/31:45 /32:629

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
6389 2292 3713 bellsouth.net, inc.
4323 1428 2645 Time Warner Telecom
6478 1407 1451 AT&T Worldnet Services
10620 1240 1349 TVCABLE BOGOTA
11492 1233 1277 Cable One
18566 1098 1117 Covad Communications
7011 1068 1171 Citizens Utilities
1785 1060 1786 AppliedTheory Corporation
19262 1027 1913 Verizon Global Networks
6503 929 1143 AVANTEL, S.A.

Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:157 2:38 4:17 5:1 8:328 12:2032
13:6 14:318 15:15 16:3 17:8 20:9
23:1 24:1483 27:535 32:121 33:5 34:2
36:1 37:1 38:687 40:101 41:2308 42:1
44:3 46:504 47:5 49:135 50:49 52:12
55:5 56:2 57:41 58:863 59:494 60:389
61:1111 62:1066 63:1936 64:3777 65:2349 66:4138
67:1789 68:1151 69:2959 70:758 71:398 72:2024
73:3 74:2351 75:301 76:336 77:865 78:702
79:445 80:1046 81:820 82:541 83:459 84:655
85:1062 86:525 87:754 88:349 89:1585 90:152
91:3413 92:486 93:1034 94:1192 95:751 96:444
97:248 98:769 99:33 100:1 101:21 107:3
108:82 109:860 110:464 111:693 112:311 113:361
114:490 115:624 116:895 117:673 118:630 119:1035
120:234 121:707 122:1593 123:1034 124:1230 125:1215
128:248 129:159 130:171 131:567 132:112 133:20
134:220 135:50 136:212 137:146 138:291 139:118
140:484 141:198 142:359 143:370 144:486 145:52
146:425 147:203 148:622 149:301 150:153 151:230
152:299 153:175 154:3 155:345 156:173 157:312
158:126 159:371 160:314 161:192 162:278 163:161
164:460 165:353 166:473 167:420 168:730 169:154
170:740 171:68 172:5 173:1231 174:509 175:307
176:1 177:2 178:728 180:748 182:394 183:246
184:234 186:918 187:772 188:891 189:1003 190:4297
192:5807 193:4821 194:3549 195:3045 196:1249 197:1
198:3560 199:3732 200:5599 201:1566 202:8404 203:8425
204:4068 205:2344 206:2583 207:2979 208:3884 209:3492
210:2632 211:1350 212:1889 213:1776 214:737 215:62
216:4868 217:1641 218:529 219:384 220:1200 221:447
222:317 223:85

End of report
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Friday, January 14, 2011

[bgp-stats] Routing Table Report - RouteViews-3 view

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sat 15 Jan, 2011

NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/rviews/

Analysis Summary
----------------

BGP routing table entries examined: 346245
Prefixes after maximum aggregation: 155918
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 168601
Total ASes present in the Internet Routing Table: 35664
Prefixes per ASN: 9.71
Origin-only ASes present in the Internet Routing Table: 30697
Origin ASes announcing only one prefix: 14899
Transit ASes present in the Internet Routing Table: 4967
Transit-only ASes present in the Internet Routing Table: 122
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 32
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 388
Unregistered ASNs in the Routing Table: 152
Number of 32-bit ASNs allocated by the RIRs: 1007
Prefixes from 32-bit ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 75
Prefixes being announced from unallocated address space: 226
Number of addresses announced to Internet: 2434436896
Equivalent to 145 /8s, 26 /16s and 143 /24s
Percentage of available address space announced: 65.7
Percentage of allocated address space announced: 67.8
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 87.6
Total number of prefixes smaller than registry allocations: 142507

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 82921
Total APNIC prefixes after maximum aggregation: 27906
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 79892
Unique aggregates announced from the APNIC address blocks: 35343
APNIC Region origin ASes present in the Internet Routing Table: 4273
APNIC Prefixes per ASN: 18.70
APNIC Region origin ASes announcing only one prefix: 1220
APNIC Region transit ASes present in the Internet Routing Table: 685
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 579770563
Equivalent to 34 /8s, 142 /16s and 152 /24s
Percentage of available APNIC address space announced: 78.5

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes: 140773
Total ARIN prefixes after maximum aggregation: 72528
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 111575
Unique aggregates announced from the ARIN address blocks: 44221
ARIN Region origin ASes present in the Internet Routing Table: 14141
ARIN Prefixes per ASN: 7.89
ARIN Region origin ASes announcing only one prefix: 5392
ARIN Region transit ASes present in the Internet Routing Table: 1492
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 27
Number of ARIN addresses announced to Internet: 778485897
Equivalent to 46 /8s, 102 /16s and 192 /24s
Percentage of available ARIN address space announced: 65.4

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes: 83548
Total RIPE prefixes after maximum aggregation: 46164
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 76165
Unique aggregates announced from the RIPE address blocks: 47899
RIPE Region origin ASes present in the Internet Routing Table: 15210
RIPE Prefixes per ASN: 5.01
RIPE Region origin ASes announcing only one prefix: 7713
RIPE Region transit ASes present in the Internet Routing Table: 2380
Average RIPE Region AS path length visible: 4.5
Max RIPE Region AS path length visible: 28
Number of RIPE addresses announced to Internet: 454742313
Equivalent to 27 /8s, 26 /16s and 209 /24s
Percentage of available RIPE address space announced: 75.3

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 31299
Total LACNIC prefixes after maximum aggregation: 7241
LACNIC Deaggregation factor: 4.32
Prefixes being announced from the LACNIC address blocks: 30061
Unique aggregates announced from the LACNIC address blocks: 15677
LACNIC Region origin ASes present in the Internet Routing Table: 1424
LACNIC Prefixes per ASN: 21.11
LACNIC Region origin ASes announcing only one prefix: 437
LACNIC Region transit ASes present in the Internet Routing Table: 255
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 79089932
Equivalent to 4 /8s, 182 /16s and 209 /24s
Percentage of available LACNIC address space announced: 58.9

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 181/8, 186/8, 187/8, 189/8, 190/8, 200/8,
201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 7454
Total AfriNIC prefixes after maximum aggregation: 1963
AfriNIC Deaggregation factor: 3.80
Prefixes being announced from the AfriNIC address blocks: 5769
Unique aggregates announced from the AfriNIC address blocks: 1858
AfriNIC Region origin ASes present in the Internet Routing Table: 433
AfriNIC Prefixes per ASN: 13.32
AfriNIC Region origin ASes announcing only one prefix: 137
AfriNIC Region transit ASes present in the Internet Routing Table: 90
Average AfriNIC Region AS path length visible: 4.3
Max AfriNIC Region AS path length visible: 32
Number of AfriNIC addresses announced to Internet: 21705472
Equivalent to 1 /8s, 75 /16s and 51 /24s
Percentage of available AfriNIC address space announced: 43.1

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 105/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
4766 1756 9484 512 Korea Telecom (KIX)
7545 1548 298 76 TPG Internet Pty Ltd
17974 1413 459 28 PT TELEKOMUNIKASI INDONESIA
4755 1390 376 155 Videsh Sanchar Nigam Ltd. Aut
24560 1093 317 181 Bharti Airtel Ltd.
9583 1041 76 488 Sify Limited
17488 964 162 103 Hathway IP Over Cable Interne
4808 910 1942 255 CNCGROUP IP network: China169
18101 881 113 133 Reliance Infocom Ltd Internet
9829 861 728 47 BSNL National Internet Backbo

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3714 3855 266 bellsouth.net, inc.
4323 2644 1077 402 Time Warner Telecom
19262 1916 4941 286 Verizon Global Networks
1785 1786 697 133 AppliedTheory Corporation
20115 1554 1533 637 Charter Communications
6478 1449 288 72 AT&T Worldnet Services
7018 1375 5659 889 AT&T WorldNet Services
2386 1297 554 932 AT&T Data Communications Serv
11492 1277 234 71 Cable One
22773 1268 2864 74 Cox Communications, Inc.

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
286 962 710 153 KPNQwest Backbone AS
6830 502 1763 308 UPC Distribution Services
3292 501 2010 385 TDC Tele Danmark
9116 490 328 32 Goldenlines main autonomous s
34984 457 97 137 Tellcom Iletisim Hizmetleri
8866 440 133 23 Bulgarian Telecommunication C
9198 432 266 14 Kazakhtelecom Corporate Sales
8551 404 355 38 Bezeq International
12479 402 577 6 Uni2 Autonomous System
702 399 1849 312 UUNET - Commercial IP service

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
10620 1349 251 167 TVCABLE BOGOTA
8151 1333 2595 358 Uninet S.A. de C.V.
28573 1229 951 79 Types of queries are: POCs, o
6503 1143 355 79 AVANTEL, S.A.
7303 867 459 112 Telecom Argentina Stet-France
14420 603 50 88 Types of queries are: POCs, o
22047 566 310 15 Types of queries are: POCs, o
3816 497 217 99 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 455 33 33 Telefonica del Sur S.A.

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8452 791 445 11 TEDATA
24863 750 147 39 LINKdotNET AS number
36992 653 283 155 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 216 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
29571 202 19 13 Ci Telecom Autonomous system
33776 184 12 14 Starcomms Nigeria Limited
2018 166 277 64 TENET-1
16637 164 440 89 Johnnic e-Ventures

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3714 3855 266 bellsouth.net, inc.
4323 2644 1077 402 Time Warner Telecom
19262 1916 4941 286 Verizon Global Networks
1785 1786 697 133 AppliedTheory Corporation
4766 1756 9484 512 Korea Telecom (KIX)
20115 1554 1533 637 Charter Communications
7545 1548 298 76 TPG Internet Pty Ltd
6478 1449 288 72 AT&T Worldnet Services
17974 1413 459 28 PT TELEKOMUNIKASI INDONESIA
4755 1390 376 155 Videsh Sanchar Nigam Ltd. Aut

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
4323 2644 2242 Time Warner Telecom
1785 1786 1653 AppliedTheory Corporation
19262 1916 1630 Verizon Global Networks
7545 1548 1472 TPG Internet Pty Ltd
17974 1413 1385 PT TELEKOMUNIKASI INDONESIA
6478 1449 1377 AT&T Worldnet Services
4766 1756 1244 Korea Telecom (KIX)
4755 1390 1235 Videsh Sanchar Nigam Ltd. Aut
11492 1277 1206 Cable One
22773 1268 1194 Cox Communications, Inc.

Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua

Advertised Unallocated Addresses
--------------------------------

Complete listing at http://thyme.rand.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 /8:26 /9:10 /10:25 /11:71 /12:214
/13:437 /14:763 /15:1373 /16:11561 /17:5813 /18:9570
/19:19230 /20:24781 /21:24777 /22:32697 /23:31785 /24:180150
/25:355 /26:368 /27:197 /28:377 /29:304 /30:685
/31:45 /32:631

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
6389 2293 3714 bellsouth.net, inc.
4323 1427 2644 Time Warner Telecom
6478 1405 1449 AT&T Worldnet Services
10620 1240 1349 TVCABLE BOGOTA
11492 1233 1277 Cable One
18566 1098 1117 Covad Communications
7011 1068 1171 Citizens Utilities
1785 1060 1786 AppliedTheory Corporation
19262 1030 1916 Verizon Global Networks
6503 929 1143 AVANTEL, S.A.

Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:157 2:40 4:17 5:1 8:328 12:2031
13:6 14:312 15:15 16:3 17:8 20:9
23:1 24:1484 27:531 32:121 33:5 34:2
36:1 37:1 38:687 40:101 41:2286 42:1
44:3 46:501 47:5 49:139 50:48 52:12
55:4 56:2 57:41 58:864 59:504 60:389
61:1110 62:1068 63:1932 64:3778 65:2345 66:4138
67:1791 68:1151 69:2959 70:758 71:398 72:2024
73:3 74:2351 75:301 76:337 77:865 78:704
79:445 80:1049 81:826 82:541 83:455 84:642
85:1059 86:524 87:734 88:347 89:1587 90:152
91:3418 92:486 93:1036 94:1191 95:746 96:444
97:248 98:768 99:33 100:1 101:21 107:3
108:85 109:854 110:455 111:670 112:311 113:362
114:478 115:633 116:894 117:673 118:626 119:1033
120:231 121:706 122:1581 123:1021 124:1242 125:1209
128:248 129:152 130:171 131:567 132:112 133:20
134:216 135:50 136:212 137:146 138:291 139:118
140:484 141:198 142:359 143:372 144:487 145:52
146:425 147:203 148:626 149:302 150:153 151:230
152:299 153:175 154:3 155:345 156:173 157:341
158:126 159:371 160:315 161:193 162:278 163:161
164:460 165:352 166:473 167:419 168:739 169:154
170:741 171:68 172:5 173:1230 174:508 175:308
176:1 177:2 178:724 180:743 182:384 183:227
184:234 186:918 187:792 188:884 189:1004 190:4327
192:5810 193:4820 194:3551 195:3043 196:1249 197:1
198:3563 199:3732 200:5602 201:1569 202:8391 203:8447
204:4028 205:2339 206:2583 207:2977 208:3887 209:3496
210:2630 211:1348 212:1894 213:1771 214:732 215:61
216:4869 217:1638 218:529 219:384 220:1193 221:447
222:317 223:85

End of report
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Thursday, January 13, 2011

[bgp-stats] Routing Table Report - RouteViews-3 view

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Fri 14 Jan, 2011

NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/rviews/

Analysis Summary
----------------

BGP routing table entries examined: 346388
Prefixes after maximum aggregation: 155903
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 168637
Total ASes present in the Internet Routing Table: 35673
Prefixes per ASN: 9.71
Origin-only ASes present in the Internet Routing Table: 30701
Origin ASes announcing only one prefix: 14914
Transit ASes present in the Internet Routing Table: 4972
Transit-only ASes present in the Internet Routing Table: 119
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 32
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 391
Unregistered ASNs in the Routing Table: 151
Number of 32-bit ASNs allocated by the RIRs: 1005
Prefixes from 32-bit ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 75
Prefixes being announced from unallocated address space: 246
Number of addresses announced to Internet: 2434663259
Equivalent to 145 /8s, 30 /16s and 3 /24s
Percentage of available address space announced: 65.7
Percentage of allocated address space announced: 67.8
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 87.4
Total number of prefixes smaller than registry allocations: 142457

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 83038
Total APNIC prefixes after maximum aggregation: 27895
APNIC Deaggregation factor: 2.98
Prefixes being announced from the APNIC address blocks: 80009
Unique aggregates announced from the APNIC address blocks: 35398
APNIC Region origin ASes present in the Internet Routing Table: 4278
APNIC Prefixes per ASN: 18.70
APNIC Region origin ASes announcing only one prefix: 1222
APNIC Region transit ASes present in the Internet Routing Table: 681
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 579636930
Equivalent to 34 /8s, 140 /16s and 142 /24s
Percentage of available APNIC address space announced: 78.5

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes: 140717
Total ARIN prefixes after maximum aggregation: 72549
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 111544
Unique aggregates announced from the ARIN address blocks: 44213
ARIN Region origin ASes present in the Internet Routing Table: 14141
ARIN Prefixes per ASN: 7.89
ARIN Region origin ASes announcing only one prefix: 5398
ARIN Region transit ASes present in the Internet Routing Table: 1492
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 27
Number of ARIN addresses announced to Internet: 778460297
Equivalent to 46 /8s, 102 /16s and 92 /24s
Percentage of available ARIN address space announced: 65.4

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes: 83607
Total RIPE prefixes after maximum aggregation: 46161
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 76215
Unique aggregates announced from the RIPE address blocks: 47931
RIPE Region origin ASes present in the Internet Routing Table: 15218
RIPE Prefixes per ASN: 5.01
RIPE Region origin ASes announcing only one prefix: 7715
RIPE Region transit ASes present in the Internet Routing Table: 2384
Average RIPE Region AS path length visible: 4.5
Max RIPE Region AS path length visible: 28
Number of RIPE addresses announced to Internet: 455031525
Equivalent to 27 /8s, 31 /16s and 58 /24s
Percentage of available RIPE address space announced: 75.3

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 31266
Total LACNIC prefixes after maximum aggregation: 7221
LACNIC Deaggregation factor: 4.33
Prefixes being announced from the LACNIC address blocks: 30004
Unique aggregates announced from the LACNIC address blocks: 15609
LACNIC Region origin ASes present in the Internet Routing Table: 1423
LACNIC Prefixes per ASN: 21.09
LACNIC Region origin ASes announcing only one prefix: 438
LACNIC Region transit ASes present in the Internet Routing Table: 255
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 79074444
Equivalent to 4 /8s, 182 /16s and 148 /24s
Percentage of available LACNIC address space announced: 58.9

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 181/8, 186/8, 187/8, 189/8, 190/8, 200/8,
201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 7510
Total AfriNIC prefixes after maximum aggregation: 1961
AfriNIC Deaggregation factor: 3.83
Prefixes being announced from the AfriNIC address blocks: 5775
Unique aggregates announced from the AfriNIC address blocks: 1848
AfriNIC Region origin ASes present in the Internet Routing Table: 433
AfriNIC Prefixes per ASN: 13.34
AfriNIC Region origin ASes announcing only one prefix: 141
AfriNIC Region transit ASes present in the Internet Routing Table: 91
Average AfriNIC Region AS path length visible: 4.3
Max AfriNIC Region AS path length visible: 32
Number of AfriNIC addresses announced to Internet: 21660928
Equivalent to 1 /8s, 74 /16s and 133 /24s
Percentage of available AfriNIC address space announced: 43.0

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 105/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
4766 1755 9484 511 Korea Telecom (KIX)
7545 1548 298 76 TPG Internet Pty Ltd
17974 1412 459 28 PT TELEKOMUNIKASI INDONESIA
4755 1390 376 155 Videsh Sanchar Nigam Ltd. Aut
24560 1093 317 181 Bharti Airtel Ltd.
9583 1042 76 489 Sify Limited
17488 958 159 109 Hathway IP Over Cable Interne
18101 912 116 138 Reliance Infocom Ltd Internet
4808 909 1940 254 CNCGROUP IP network: China169
9829 861 728 47 BSNL National Internet Backbo

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3715 3855 266 bellsouth.net, inc.
4323 2645 1077 402 Time Warner Telecom
19262 1916 4941 286 Verizon Global Networks
1785 1786 697 133 AppliedTheory Corporation
20115 1554 1533 637 Charter Communications
6478 1445 287 76 AT&T Worldnet Services
7018 1373 5659 887 AT&T WorldNet Services
2386 1297 554 932 AT&T Data Communications Serv
11492 1277 234 71 Cable One
22773 1266 2864 74 Cox Communications, Inc.

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
286 963 710 153 KPNQwest Backbone AS
3292 502 2010 385 TDC Tele Danmark
6830 501 1763 307 UPC Distribution Services
9116 490 328 32 Goldenlines main autonomous s
34984 457 97 137 Tellcom Iletisim Hizmetleri
8866 440 133 23 Bulgarian Telecommunication C
9198 423 266 14 Kazakhtelecom Corporate Sales
8551 404 355 38 Bezeq International
12479 402 577 6 Uni2 Autonomous System
702 399 1849 312 UUNET - Commercial IP service

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
10620 1350 251 166 TVCABLE BOGOTA
8151 1332 2595 358 Uninet S.A. de C.V.
28573 1230 951 79 Types of queries are: POCs, o
6503 1142 355 79 AVANTEL, S.A.
7303 867 459 112 Telecom Argentina Stet-France
14420 601 50 87 Types of queries are: POCs, o
22047 566 310 15 Types of queries are: POCs, o
3816 496 217 99 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 455 33 33 Telefonica del Sur S.A.

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8452 791 445 11 TEDATA
24863 749 147 38 LINKdotNET AS number
36992 653 283 155 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 216 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
29571 202 19 13 Ci Telecom Autonomous system
2018 198 277 64 TENET-1
33776 184 12 14 Starcomms Nigeria Limited
16637 164 440 89 Johnnic e-Ventures

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3715 3855 266 bellsouth.net, inc.
4323 2645 1077 402 Time Warner Telecom
19262 1916 4941 286 Verizon Global Networks
1785 1786 697 133 AppliedTheory Corporation
4766 1755 9484 511 Korea Telecom (KIX)
20115 1554 1533 637 Charter Communications
7545 1548 298 76 TPG Internet Pty Ltd
6478 1445 287 76 AT&T Worldnet Services
17974 1412 459 28 PT TELEKOMUNIKASI INDONESIA
4755 1390 376 155 Videsh Sanchar Nigam Ltd. Aut

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
4323 2645 2243 Time Warner Telecom
1785 1786 1653 AppliedTheory Corporation
19262 1916 1630 Verizon Global Networks
7545 1548 1472 TPG Internet Pty Ltd
17974 1412 1384 PT TELEKOMUNIKASI INDONESIA
6478 1445 1369 AT&T Worldnet Services
4766 1755 1244 Korea Telecom (KIX)
4755 1390 1235 Videsh Sanchar Nigam Ltd. Aut
11492 1277 1206 Cable One
22773 1266 1192 Cox Communications, Inc.

Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua

Advertised Unallocated Addresses
--------------------------------

Complete listing at http://thyme.rand.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 /8:26 /9:10 /10:25 /11:71 /12:214
/13:437 /14:763 /15:1375 /16:11561 /17:5808 /18:9552
/19:19237 /20:24786 /21:24795 /22:32704 /23:31764 /24:180300
/25:354 /26:370 /27:197 /28:374 /29:305 /30:684
/31:45 /32:631

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
6389 2294 3715 bellsouth.net, inc.
4323 1428 2645 Time Warner Telecom
6478 1401 1445 AT&T Worldnet Services
10620 1241 1350 TVCABLE BOGOTA
11492 1233 1277 Cable One
18566 1098 1117 Covad Communications
7011 1068 1170 Citizens Utilities
1785 1060 1786 AppliedTheory Corporation
19262 1030 1916 Verizon Global Networks
6503 928 1142 AVANTEL, S.A.

Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:154 2:39 4:17 5:1 8:328 12:2031
13:6 14:303 15:15 16:3 17:8 20:9
23:1 24:1483 27:533 32:121 33:5 34:2
36:1 37:1 38:687 40:101 41:2320 42:1
44:3 46:502 47:5 49:139 50:48 52:12
55:5 56:2 57:41 58:863 59:494 60:385
61:1110 62:1068 63:1938 64:3768 65:2353 66:4136
67:1795 68:1150 69:2954 70:758 71:398 72:2021
73:3 74:2350 75:299 76:335 77:865 78:705
79:446 80:1043 81:825 82:540 83:458 84:656
85:1065 86:525 87:750 88:348 89:1589 90:152
91:3415 92:485 93:1037 94:1194 95:757 96:444
97:248 98:768 99:33 100:1 101:19 107:3
108:85 109:862 110:468 111:674 112:314 113:363
114:490 115:634 116:894 117:675 118:628 119:1035
120:234 121:705 122:1593 123:1035 124:1250 125:1215
128:248 129:159 130:171 131:565 132:110 133:20
134:216 135:50 136:212 137:145 138:291 139:118
140:484 141:198 142:360 143:370 144:488 145:52
146:425 147:203 148:626 149:303 150:156 151:230
152:300 153:175 154:3 155:372 156:172 157:341
158:126 159:371 160:316 161:193 162:278 163:161
164:460 165:353 166:473 167:419 168:738 169:154
170:741 171:68 172:5 173:1206 174:507 175:307
176:1 177:2 178:719 180:747 182:389 183:253
184:232 186:911 187:773 188:884 189:1007 190:4285
192:5809 193:4821 194:3548 195:3051 196:1258 197:1
198:3552 199:3733 200:5600 201:1566 202:8403 203:8439
204:4060 205:2345 206:2583 207:2976 208:3882 209:3488
210:2630 211:1350 212:1891 213:1776 214:737 215:62
216:4864 217:1637 218:531 219:386 220:1199 221:447
222:318 223:85

End of report
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Wednesday, January 12, 2011

[bgp-stats] Routing Table Report - RouteViews-3 view

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Thu 13 Jan, 2011

NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/rviews/

Analysis Summary
----------------

BGP routing table entries examined: 345994
Prefixes after maximum aggregation: 155772
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 168419
Total ASes present in the Internet Routing Table: 35653
Prefixes per ASN: 9.70
Origin-only ASes present in the Internet Routing Table: 30689
Origin ASes announcing only one prefix: 14906
Transit ASes present in the Internet Routing Table: 4964
Transit-only ASes present in the Internet Routing Table: 120
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 32
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 391
Unregistered ASNs in the Routing Table: 152
Number of 32-bit ASNs allocated by the RIRs: 1004
Prefixes from 32-bit ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 74
Prefixes being announced from unallocated address space: 235
Number of addresses announced to Internet: 2433802393
Equivalent to 145 /8s, 16 /16s and 224 /24s
Percentage of available address space announced: 65.7
Percentage of allocated address space announced: 67.8
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 87.3
Total number of prefixes smaller than registry allocations: 142262

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 82859
Total APNIC prefixes after maximum aggregation: 27865
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 79843
Unique aggregates announced from the APNIC address blocks: 35377
APNIC Region origin ASes present in the Internet Routing Table: 4275
APNIC Prefixes per ASN: 18.68
APNIC Region origin ASes announcing only one prefix: 1219
APNIC Region transit ASes present in the Internet Routing Table: 679
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 579249601
Equivalent to 34 /8s, 134 /16s and 165 /24s
Percentage of available APNIC address space announced: 78.5

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes: 140590
Total ARIN prefixes after maximum aggregation: 72486
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 111399
Unique aggregates announced from the ARIN address blocks: 44187
ARIN Region origin ASes present in the Internet Routing Table: 14135
ARIN Prefixes per ASN: 7.88
ARIN Region origin ASes announcing only one prefix: 5400
ARIN Region transit ASes present in the Internet Routing Table: 1488
Average ARIN Region AS path length visible: 3.9
Max ARIN Region AS path length visible: 27
Number of ARIN addresses announced to Internet: 778404745
Equivalent to 46 /8s, 101 /16s and 131 /24s
Percentage of available ARIN address space announced: 65.3

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes: 83487
Total RIPE prefixes after maximum aggregation: 46126
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 76130
Unique aggregates announced from the RIPE address blocks: 47792
RIPE Region origin ASes present in the Internet Routing Table: 15206
RIPE Prefixes per ASN: 5.01
RIPE Region origin ASes announcing only one prefix: 7710
RIPE Region transit ASes present in the Internet Routing Table: 2387
Average RIPE Region AS path length visible: 4.5
Max RIPE Region AS path length visible: 28
Number of RIPE addresses announced to Internet: 454683557
Equivalent to 27 /8s, 25 /16s and 235 /24s
Percentage of available RIPE address space announced: 75.3

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 31330
Total LACNIC prefixes after maximum aggregation: 7215
LACNIC Deaggregation factor: 4.34
Prefixes being announced from the LACNIC address blocks: 30083
Unique aggregates announced from the LACNIC address blocks: 15619
LACNIC Region origin ASes present in the Internet Routing Table: 1421
LACNIC Prefixes per ASN: 21.17
LACNIC Region origin ASes announcing only one prefix: 436
LACNIC Region transit ASes present in the Internet Routing Table: 254
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 79085068
Equivalent to 4 /8s, 182 /16s and 190 /24s
Percentage of available LACNIC address space announced: 58.9

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 181/8, 186/8, 187/8, 189/8, 190/8, 200/8,
201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 7478
Total AfriNIC prefixes after maximum aggregation: 1964
AfriNIC Deaggregation factor: 3.81
Prefixes being announced from the AfriNIC address blocks: 5755
Unique aggregates announced from the AfriNIC address blocks: 1843
AfriNIC Region origin ASes present in the Internet Routing Table: 435
AfriNIC Prefixes per ASN: 13.23
AfriNIC Region origin ASes announcing only one prefix: 141
AfriNIC Region transit ASes present in the Internet Routing Table: 89
Average AfriNIC Region AS path length visible: 4.3
Max AfriNIC Region AS path length visible: 32
Number of AfriNIC addresses announced to Internet: 21699328
Equivalent to 1 /8s, 75 /16s and 27 /24s
Percentage of available AfriNIC address space announced: 43.1

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 105/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
4766 1755 9484 511 Korea Telecom (KIX)
7545 1547 298 75 TPG Internet Pty Ltd
17974 1414 459 28 PT TELEKOMUNIKASI INDONESIA
4755 1393 376 156 Videsh Sanchar Nigam Ltd. Aut
24560 1062 317 180 Bharti Airtel Ltd.
9583 1041 76 489 Sify Limited
17488 958 159 109 Hathway IP Over Cable Interne
18101 912 116 138 Reliance Infocom Ltd Internet
4808 909 1940 254 CNCGROUP IP network: China169
9829 860 728 47 BSNL National Internet Backbo

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3715 3855 266 bellsouth.net, inc.
4323 2643 1077 401 Time Warner Telecom
19262 1841 4941 286 Verizon Global Networks
1785 1786 697 133 AppliedTheory Corporation
20115 1557 1533 637 Charter Communications
6478 1445 287 76 AT&T Worldnet Services
7018 1370 5659 885 AT&T WorldNet Services
2386 1297 554 932 AT&T Data Communications Serv
11492 1277 234 71 Cable One
22773 1266 2864 74 Cox Communications, Inc.

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
286 962 710 153 KPNQwest Backbone AS
3292 503 2010 385 TDC Tele Danmark
6830 502 1763 308 UPC Distribution Services
9116 490 328 32 Goldenlines main autonomous s
34984 457 97 137 Tellcom Iletisim Hizmetleri
8866 441 133 24 Bulgarian Telecommunication C
9198 422 266 14 Kazakhtelecom Corporate Sales
12479 405 577 6 Uni2 Autonomous System
8551 404 355 38 Bezeq International
702 399 1849 312 UUNET - Commercial IP service

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8151 1350 2595 359 Uninet S.A. de C.V.
10620 1345 250 165 TVCABLE BOGOTA
28573 1225 951 79 Types of queries are: POCs, o
6503 1188 355 79 AVANTEL, S.A.
7303 856 459 112 Telecom Argentina Stet-France
14420 601 50 87 Types of queries are: POCs, o
22047 566 310 15 Types of queries are: POCs, o
3816 494 216 98 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 455 33 33 Telefonica del Sur S.A.

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8452 775 445 11 TEDATA
24863 749 147 39 LINKdotNET AS number
36992 652 283 155 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 219 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
29571 199 19 11 Ci Telecom Autonomous system
2018 198 277 64 TENET-1
33776 184 12 14 Starcomms Nigeria Limited
16637 164 440 89 Johnnic e-Ventures

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3715 3855 266 bellsouth.net, inc.
4323 2643 1077 401 Time Warner Telecom
19262 1841 4941 286 Verizon Global Networks
1785 1786 697 133 AppliedTheory Corporation
4766 1755 9484 511 Korea Telecom (KIX)
20115 1557 1533 637 Charter Communications
7545 1547 298 75 TPG Internet Pty Ltd
6478 1445 287 76 AT&T Worldnet Services
17974 1414 459 28 PT TELEKOMUNIKASI INDONESIA
4755 1393 376 156 Videsh Sanchar Nigam Ltd. Aut

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
4323 2643 2242 Time Warner Telecom
1785 1786 1653 AppliedTheory Corporation
19262 1841 1555 Verizon Global Networks
7545 1547 1472 TPG Internet Pty Ltd
17974 1414 1386 PT TELEKOMUNIKASI INDONESIA
6478 1445 1369 AT&T Worldnet Services
4766 1755 1244 Korea Telecom (KIX)
4755 1393 1237 Videsh Sanchar Nigam Ltd. Aut
11492 1277 1206 Cable One
22773 1266 1192 Cox Communications, Inc.

Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua

Advertised Unallocated Addresses
--------------------------------

Complete listing at http://thyme.rand.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 /8:26 /9:10 /10:25 /11:71 /12:214
/13:437 /14:762 /15:1379 /16:11557 /17:5793 /18:9537
/19:19237 /20:24808 /21:24790 /22:32684 /23:31765 /24:179961
/25:354 /26:368 /27:192 /28:369 /29:301 /30:681
/31:45 /32:628

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
6389 2294 3715 bellsouth.net, inc.
4323 1427 2643 Time Warner Telecom
6478 1401 1445 AT&T Worldnet Services
10620 1236 1345 TVCABLE BOGOTA
11492 1233 1277 Cable One
18566 1098 1117 Covad Communications
7011 1073 1176 Citizens Utilities
1785 1060 1786 AppliedTheory Corporation
6503 973 1188 AVANTEL, S.A.
19262 955 1841 Verizon Global Networks

Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:157 2:40 4:16 5:1 8:326 12:2031
13:6 14:303 15:15 16:3 17:8 20:9
23:1 24:1486 27:532 32:137 33:5 34:2
36:1 37:1 38:687 40:101 41:2290 42:1
44:3 46:487 47:5 49:138 50:48 52:12
55:5 56:2 57:41 58:862 59:504 60:385
61:1109 62:1076 63:1936 64:3763 65:2337 66:4134
67:1794 68:1151 69:2955 70:757 71:389 72:2002
73:3 74:2348 75:299 76:333 77:864 78:696
79:445 80:1050 81:823 82:549 83:450 84:654
85:1067 86:525 87:750 88:350 89:1588 90:152
91:3384 92:485 93:1040 94:1192 95:759 96:412
97:248 98:752 99:33 100:1 101:18 107:3
108:81 109:853 110:460 111:678 112:313 113:360
114:490 115:635 116:890 117:675 118:628 119:1031
120:196 121:705 122:1570 123:1035 124:1249 125:1214
128:244 129:159 130:170 131:566 132:108 133:20
134:214 135:50 136:212 137:145 138:291 139:123
140:484 141:197 142:360 143:369 144:491 145:52
146:425 147:203 148:625 149:303 150:154 151:230
152:297 153:172 154:3 155:371 156:170 157:341
158:126 159:371 160:316 161:198 162:278 163:161
164:460 165:353 166:473 167:418 168:739 169:153
170:730 171:68 172:2 173:1198 174:502 175:308
176:1 177:2 178:716 180:743 182:386 183:255
184:231 186:912 187:773 188:879 189:1050 190:4290
192:5806 193:4819 194:3547 195:3057 196:1258 197:1
198:3548 199:3728 200:5602 201:1567 202:8402 203:8423
204:4049 205:2340 206:2581 207:2976 208:3878 209:3487
210:2609 211:1347 212:1875 213:1772 214:742 215:62
216:4866 217:1632 218:522 219:386 220:1194 221:446
222:320 223:88

End of report
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