BGP Routing: 2011-01-16

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 22, 2011

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

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sun 23 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: 348303
Prefixes after maximum aggregation: 156321
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 169299
Total ASes present in the Internet Routing Table: 35704
Prefixes per ASN: 9.76
Origin-only ASes present in the Internet Routing Table: 30779
Origin ASes announcing only one prefix: 14893
Transit ASes present in the Internet Routing Table: 4925
Transit-only ASes present in the Internet Routing Table: 112
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 28
Max AS path prepend of ASN (47645) 19
Prefixes from unregistered ASNs in the Routing Table: 419
Unregistered ASNs in the Routing Table: 158
Number of 32-bit ASNs allocated by the RIRs: 1032
Prefixes from 32-bit ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 75
Prefixes being announced from unallocated address space: 218
Number of addresses announced to Internet: 2342097360
Equivalent to 139 /8s, 153 /16s and 145 /24s
Percentage of available address space announced: 63.2
Percentage of allocated address space announced: 65.3
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 87.7
Total number of prefixes smaller than registry allocations: 143313

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

Prefixes being announced by APNIC Region ASes: 83757
Total APNIC prefixes after maximum aggregation: 27970
APNIC Deaggregation factor: 2.99
Prefixes being announced from the APNIC address blocks: 80680
Unique aggregates announced from the APNIC address blocks: 35499
APNIC Region origin ASes present in the Internet Routing Table: 4289
APNIC Prefixes per ASN: 18.81
APNIC Region origin ASes announcing only one prefix: 1223
APNIC Region transit ASes present in the Internet Routing Table: 677
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 582339811
Equivalent to 34 /8s, 181 /16s and 204 /24s
Percentage of available APNIC address space announced: 78.9

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: 141149
Total ARIN prefixes after maximum aggregation: 72652
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 111661
Unique aggregates announced from the ARIN address blocks: 44282
ARIN Region origin ASes present in the Internet Routing Table: 14136
ARIN Prefixes per ASN: 7.90
ARIN Region origin ASes announcing only one prefix: 5369
ARIN Region transit ASes present in the Internet Routing Table: 1456
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 746150793
Equivalent to 44 /8s, 121 /16s and 91 /24s
Percentage of available ARIN address space announced: 62.6

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: 84084
Total RIPE prefixes after maximum aggregation: 46363
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 76690
Unique aggregates announced from the RIPE address blocks: 48114
RIPE Region origin ASes present in the Internet Routing Table: 15251
RIPE Prefixes per ASN: 5.03
RIPE Region origin ASes announcing only one prefix: 7732
RIPE Region transit ASes present in the Internet Routing Table: 2386
Average RIPE Region AS path length visible: 4.4
Max RIPE Region AS path length visible: 28
Number of RIPE addresses announced to Internet: 456297913
Equivalent to 27 /8s, 50 /16s and 141 /24s
Percentage of available RIPE address space announced: 75.5

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: 31545
Total LACNIC prefixes after maximum aggregation: 7231
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 30336
Unique aggregates announced from the LACNIC address blocks: 15724
LACNIC Region origin ASes present in the Internet Routing Table: 1420
LACNIC Prefixes per ASN: 21.36
LACNIC Region origin ASes announcing only one prefix: 432
LACNIC Region transit ASes present in the Internet Routing Table: 256
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 79573516
Equivalent to 4 /8s, 190 /16s and 50 /24s
Percentage of available LACNIC address space announced: 59.3

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: 7493
Total AfriNIC prefixes after maximum aggregation: 1986
AfriNIC Deaggregation factor: 3.77
Prefixes being announced from the AfriNIC address blocks: 5812
Unique aggregates announced from the AfriNIC address blocks: 1866
AfriNIC Region origin ASes present in the Internet Routing Table: 435
AfriNIC Prefixes per ASN: 13.36
AfriNIC Region origin ASes announcing only one prefix: 137
AfriNIC Region transit ASes present in the Internet Routing Table: 93
Average AfriNIC Region AS path length visible: 4.3
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 21736448
Equivalent to 1 /8s, 75 /16s and 172 /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 1757 9484 513 Korea Telecom (KIX)
7545 1571 299 79 TPG Internet Pty Ltd
4755 1398 376 158 Videsh Sanchar Nigam Ltd. Aut
17974 1385 459 28 PT TELEKOMUNIKASI INDONESIA
24560 1095 317 181 Bharti Airtel Ltd.
9583 1045 77 488 Sify Limited
17488 964 162 103 Hathway IP Over Cable Interne
4808 919 2002 264 CNCGROUP IP network: China169
18101 918 116 139 Reliance Infocom Ltd Internet
9829 863 729 48 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 3709 3855 266 bellsouth.net, inc.
4323 2648 1093 404 Time Warner Telecom
19262 1839 4927 283 Verizon Global Networks
1785 1790 697 133 AppliedTheory Corporation
20115 1571 1533 641 Charter Communications
6478 1467 290 91 AT&T Worldnet Services
7018 1370 5659 884 AT&T WorldNet Services
2386 1298 553 933 AT&T Data Communications Serv
22773 1275 2864 77 Cox Communications, Inc.
11492 1258 234 76 Cable One

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
286 973 710 153 KPNQwest Backbone AS
9116 526 328 32 Goldenlines main autonomous s
3292 503 2010 387 TDC Tele Danmark
6830 501 1763 307 UPC Distribution Services
9198 462 266 14 Kazakhtelecom Corporate Sales
34984 457 97 137 Tellcom Iletisim Hizmetleri
8866 439 133 23 Bulgarian Telecommunication C
8551 404 355 38 Bezeq International
12479 403 577 6 Uni2 Autonomous System
3320 401 7618 350 Deutsche Telekom AG

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 1355 251 165 TVCABLE BOGOTA
8151 1332 2597 367 Uninet S.A. de C.V.
28573 1243 952 80 Types of queries are: POCs, o
6503 1150 355 79 AVANTEL, S.A.
7303 887 461 114 Telecom Argentina Stet-France
14420 604 50 89 Types of queries are: POCs, o
22047 567 310 15 Types of queries are: POCs, o
3816 527 222 103 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
27947 456 53 48 Telconet 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
24863 756 147 40 LINKdotNET AS number
8452 741 445 11 TEDATA
36992 663 283 155 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 217 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
29571 194 19 11 Ci Telecom Autonomous system
33776 191 12 13 Starcomms Nigeria Limited
2018 167 277 64 TENET-1
16637 163 425 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 3709 3855 266 bellsouth.net, inc.
4323 2648 1093 404 Time Warner Telecom
19262 1839 4927 283 Verizon Global Networks
1785 1790 697 133 AppliedTheory Corporation
4766 1757 9484 513 Korea Telecom (KIX)
7545 1571 299 79 TPG Internet Pty Ltd
20115 1571 1533 641 Charter Communications
6478 1467 290 91 AT&T Worldnet Services
4755 1398 376 158 Videsh Sanchar Nigam Ltd. Aut
17974 1385 459 28 PT TELEKOMUNIKASI INDONESIA

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 2648 2244 Time Warner Telecom
1785 1790 1657 AppliedTheory Corporation
19262 1839 1556 Verizon Global Networks
7545 1571 1492 TPG Internet Pty Ltd
6478 1467 1376 AT&T Worldnet Services
17974 1385 1357 PT TELEKOMUNIKASI INDONESIA
4766 1757 1244 Korea Telecom (KIX)
4755 1398 1240 Videsh Sanchar Nigam Ltd. Aut
22773 1275 1198 Cox Communications, Inc.
10620 1355 1190 TVCABLE BOGOTA

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
5.1.0.0/21 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
37.1.0.0/21 12654 RIPE NCC RIS Project
37.1.24.0/24 12654 RIPE NCC RIS Project
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
46.226.104.0/21 29169 Gandi SAS - Domain name regis

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 /8:20 /9:10 /10:25 /11:71 /12:215
/13:438 /14:767 /15:1385 /16:11596 /17:5837 /18:9598
/19:19421 /20:24871 /21:24948 /22:32844 /23:32014 /24:181260
/25:359 /26:371 /27:199 /28:372 /29:296 /30:690
/31:46 /32:650

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

ASN No of nets Total ann. Description
6389 2288 3709 bellsouth.net, inc.
4323 1430 2648 Time Warner Telecom
6478 1421 1467 AT&T Worldnet Services
10620 1246 1355 TVCABLE BOGOTA
11492 1214 1258 Cable One
18566 1118 1137 Covad Communications
7011 1068 1174 Citizens Utilities
1785 1061 1790 AppliedTheory Corporation
19262 952 1839 Verizon Global Networks
6503 935 1150 AVANTEL, S.A.

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

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

1:165 2:42 4:17 5:1 8:333 12:2031
13:6 14:377 15:15 16:3 17:8 20:9
23:1 24:1476 27:545 32:128 33:5 34:2
36:1 37:1 38:691 40:100 41:2303 42:1
44:3 46:520 47:5 49:146 50:56 52:12
55:6 56:2 57:41 58:868 59:485 60:391
61:1134 62:1038 63:1930 64:3776 65:2338 66:4105
67:1795 68:1152 69:2981 70:760 71:394 72:2036
73:3 74:2348 75:302 76:336 77:866 78:712
79:444 80:1049 81:826 82:541 83:466 84:660
85:1068 86:532 87:759 88:355 89:1597 90:154
91:3435 92:493 93:1055 94:1187 95:775 96:413
97:248 98:757 99:33 101:18 107:3 108:79
109:874 110:465 111:695 112:309 113:365 114:490
115:637 116:895 117:677 118:631 119:1033 120:240
121:710 122:1608 123:1045 124:1265 125:1210 128:248
129:159 130:171 131:568 132:109 133:20 134:219
135:50 136:216 137:146 138:293 139:140 140:485
141:198 142:362 143:379 144:489 145:52 146:424
147:206 148:623 149:273 150:151 151:230 152:303
153:175 154:3 155:346 156:173 157:342 158:126
159:377 160:314 161:200 162:278 163:159 164:470
165:353 166:601 167:421 168:744 169:154 170:747
171:69 172:2 173:1258 174:516 175:309 176:1
177:4 178:752 180:760 182:395 183:249 184:237
186:958 187:811 188:910 189:1040 190:4337 192:5820
193:4818 194:3551 195:3083 196:1252 197:2 198:3567
199:3757 200:5613 201:1578 202:8449 203:8430 204:4089
205:2345 206:2590 207:2973 208:3879 209:3468 210:2641
211:1336 212:1916 213:1773 214:751 215:62 216:4866
217:1637 218:550 219:374 220:1203 221:448 222:346
223:90

End of report
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[bgp-stats] Routing Table Report - London view

* BGP Routing Table Analysis Reports *
Routing Table Report 08:00 +10GMT Sun 23 Jan, 2011

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

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

BGP routing table entries examined: 338188
Prefixes after maximum aggregation: 153927
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 169043
Total ASes present in the Internet Routing Table: 35523
Prefixes per ASN: 9.52
Origin-only ASes present in the Internet Routing Table: 30726
Origin ASes announcing only one prefix: 14945
Transit ASes present in the Internet Routing Table: 4797
Transit-only ASes present in the Internet Routing Table: 108
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 317
Unregistered ASNs in the Routing Table: 124
Number of 32-bit ASNs allocated by the RIRs: 1032
Prefixes from 32-bit ASNs in the Routing Table: 1573
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 209
Number of addresses announced to Internet: 2476143616
Equivalent to 147 /8s, 150 /16s and 244 /24s
Percentage of available address space announced: 66.8
Percentage of allocated address space announced: 69.0
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 87.7
Total number of prefixes smaller than registry allocations: 137835

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

Prefixes being announced by APNIC Region ASes: 81412
Total APNIC prefixes after maximum aggregation: 27717
APNIC Deaggregation factor: 2.94
Prefixes being announced from the APNIC address blocks: 79043
Unique aggregates announced from the APNIC address blocks: 35420
APNIC Region origin ASes present in the Internet Routing Table: 4251
APNIC Prefixes per ASN: 18.59
APNIC Region origin ASes announcing only one prefix: 1222
APNIC Region transit ASes present in the Internet Routing Table: 653
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 582047488
Equivalent to 34 /8s, 177 /16s and 87 /24s
Percentage of available APNIC address space announced: 78.8

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

Prefixes being announced by ARIN Region ASes: 135113
Total ARIN prefixes after maximum aggregation: 69221
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 107959
Unique aggregates announced from the ARIN address blocks: 44348
ARIN Region origin ASes present in the Internet Routing Table: 14048
ARIN Prefixes per ASN: 7.69
ARIN Region origin ASes announcing only one prefix: 5372
ARIN Region transit ASes present in the Internet Routing Table: 1396
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 745921280
Equivalent to 44 /8s, 117 /16s and 219 /24s
Percentage of available ARIN address space announced: 62.6

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

Prefixes being announced by RIPE Region ASes: 80984
Total RIPE prefixes after maximum aggregation: 46005
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 74377
Unique aggregates announced from the RIPE address blocks: 48107
RIPE Region origin ASes present in the Internet Routing Table: 15214
RIPE Prefixes per ASN: 4.89
RIPE Region origin ASes announcing only one prefix: 7777
RIPE Region transit ASes present in the Internet Routing Table: 2356
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 456110080
Equivalent to 27 /8s, 47 /16s and 176 /24s
Percentage of available RIPE address space announced: 75.5

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

Prefixes being announced by LACNIC Region ASes: 30954
Total LACNIC prefixes after maximum aggregation: 7142
LACNIC Deaggregation factor: 4.33
Prefixes being announced from the LACNIC address blocks: 29892
Unique aggregates announced from the LACNIC address blocks: 15671
LACNIC Region origin ASes present in the Internet Routing Table: 1409
LACNIC Prefixes per ASN: 21.22
LACNIC Region origin ASes announcing only one prefix: 438
LACNIC Region transit ASes present in the Internet Routing Table: 240
Average LACNIC Region AS path length visible: 3.9
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 79495680
Equivalent to 4 /8s, 189 /16s and 2 /24s
Percentage of available LACNIC address space announced: 59.2

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: 7464
Total AfriNIC prefixes after maximum aggregation: 1973
AfriNIC Deaggregation factor: 3.78
Prefixes being announced from the AfriNIC address blocks: 5783
Unique aggregates announced from the AfriNIC address blocks: 1863
AfriNIC Region origin ASes present in the Internet Routing Table: 432
AfriNIC Prefixes per ASN: 13.39
AfriNIC Region origin ASes announcing only one prefix: 136
AfriNIC Region transit ASes present in the Internet Routing Table: 94
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 21751808
Equivalent to 1 /8s, 75 /16s and 232 /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 1757 9484 513 Korea Telecom (KIX)
7545 1571 299 79 TPG Internet Pty Ltd
4755 1399 636 160 TATA Communications formerly
17974 1384 459 28 PT TELEKOMUNIKASI INDONESIA
24560 1095 317 181 Bharti Airtel Ltd., Telemedia
9583 1043 76 487 Sify Limited
17488 949 162 103 Hathway IP Over Cable Interne
4808 922 2012 266 CNCGROUP IP network: China169
18101 919 116 139 Reliance Infocom Ltd Internet
9829 863 729 48 BSNL National Internet Backbo

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

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

ASN No of nets /20 equiv MaxAgg Description
6389 3710 3855 267 bellsouth.net, inc.
4323 2646 1093 404 Time Warner Telecom
19262 1839 4943 283 Verizon Global Networks
1785 1792 697 132 PaeTec Communications, Inc.
20115 1525 1530 641 Charter Communications
6478 1467 290 91 AT&T Worldnet Services
7018 1385 5684 897 AT&T WorldNet Services
2386 1299 554 934 AT&T Data Communications Serv
22773 1274 2864 77 Cox Communications, Inc.
11492 1258 234 76 Cable One

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

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

ASN No of nets /20 equiv MaxAgg Description
6830 499 1763 305 UPC Distribution Services
9116 488 328 31 Goldenlines main autonomous s
9198 462 266 14 Kazakhtelecom Data Network Ad
34984 457 97 137 BILISIM TELEKOM
3292 444 2010 387 TDC Tele Danmark
8866 438 133 23 Bulgarian Telecommunication C
8551 404 355 38 Bezeq International
702 403 1835 316 UUNET - Commercial IP service
12479 403 577 6 Uni2 Autonomous System
3320 400 7616 349 Deutsche Telekom AG

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

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

ASN No of nets /20 equiv MaxAgg Description
10620 1355 251 165 TVCABLE BOGOTA
28573 1223 952 80 NET Servicos de Comunicao S.A
8151 1196 2594 361 UniNet S.A. de C.V.
6503 1138 355 79 AVANTEL, S.A.
7303 863 460 103 Telecom Argentina Stet-France
14420 604 50 89 ANDINATEL S.A.
22047 567 310 15 VTR PUNTO NET S.A.
3816 497 220 98 Empresa Nacional de Telecomun
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/london/data-ASnet-LACNIC

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

ASN No of nets /20 equiv MaxAgg Description
24863 752 147 37 LINKdotNET AS number
8452 741 445 11 TEDATA
36992 663 283 155 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 216 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
29571 194 19 11 Ci Telecom Autonomous system
33776 191 12 13 Starcomms Nigeria Limited
2018 167 277 64 Tertiary Education Network
16637 162 440 89 MTN Network Solutions

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

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

ASN No of nets /20 equiv MaxAgg Description
6389 3710 3855 267 bellsouth.net, inc.
4323 2646 1093 404 Time Warner Telecom
19262 1839 4943 283 Verizon Global Networks
1785 1792 697 132 PaeTec Communications, Inc.
4766 1757 9484 513 Korea Telecom (KIX)
23456 1573 392 879 32-bit ASN transition
7545 1571 299 79 TPG Internet Pty Ltd
20115 1525 1530 641 Charter Communications
6478 1467 290 91 AT&T Worldnet Services
4755 1399 636 160 TATA Communications formerly

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

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

ASN No of nets Net Savings Description
4323 2646 2242 Time Warner Telecom
1785 1792 1660 PaeTec Communications, Inc.
19262 1839 1556 Verizon Global Networks
7545 1571 1492 TPG Internet Pty Ltd
6478 1467 1376 AT&T Worldnet Services
17974 1384 1356 PT TELEKOMUNIKASI INDONESIA
4766 1757 1244 Korea Telecom (KIX)
4755 1399 1239 TATA Communications formerly
22773 1274 1197 Cox Communications, Inc.
10620 1355 1190 TVCABLE BOGOTA

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

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

Bad AS Designation Network Transit AS Description
65333 PRIVATE 10.0.0.0/8 0 *
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

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

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

Prefix Origin AS Description
10.0.0.0/8 65333 Internet Assigned Numbers Aut
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 65333 Internet Assigned Numbers Aut
192.0.2.0/24 65333 Internet Assigned Numbers Aut
192.168.0.0/16 0 *
198.18.0.0/15 65333 Internet Assigned Numbers Aut

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

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

Complete listing at http://thyme.rand.apnic.net/london/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 /8:27 /9:10 /10:25 /11:70 /12:215
/13:437 /14:761 /15:1359 /16:11447 /17:5584 /18:9270
/19:18844 /20:24192 /21:24437 /22:32303 /23:31177 /24:177576
/25:11 /26:17 /27:25 /28:151 /29:94 /30:43
/31:0 /32:113

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

ASN No of nets Total ann. Description
6389 2288 3710 bellsouth.net, inc.
4323 1428 2646 Time Warner Telecom
6478 1421 1467 AT&T Worldnet Services
10620 1246 1355 TVCABLE BOGOTA
11492 1214 1258 Cable One
18566 1086 1105 Covad Communications
7011 1068 1174 Citizens Utilities
1785 1061 1792 PaeTec Communications, Inc.
19262 952 1839 Verizon Global Networks
6503 924 1138 AVANTEL, S.A.

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

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

1:165 2:24 4:13 5:1 8:329 12:2027
13:1 14:353 15:15 16:3 17:8 20:9
23:1 24:1451 27:543 32:57 33:5 34:2
36:1 37:1 38:687 40:100 41:2299 42:1
44:3 46:517 47:5 49:146 50:55 52:12
55:6 56:2 57:26 58:764 59:481 60:389
61:1019 62:1017 63:1918 64:3727 65:2332 66:4073
67:1758 68:997 69:2877 70:718 71:392 72:1989
73:1 74:2292 75:291 76:328 77:854 78:709
79:435 80:1037 81:816 82:533 83:459 84:641
85:1044 86:528 87:740 88:350 89:1558 90:154
91:3421 92:493 93:1049 94:1149 95:762 96:408
97:248 98:750 99:33 101:18 107:3 108:79
109:853 110:465 111:685 112:301 113:364 114:468
115:629 116:866 117:669 118:630 119:1029 120:238
121:684 122:1603 123:1041 124:1241 125:1208 128:195
129:151 130:165 131:564 132:102 133:20 134:209
135:50 136:213 137:143 138:292 139:125 140:462
141:198 142:344 143:376 144:483 145:52 146:416
147:192 148:606 149:272 150:150 151:230 152:300
153:175 154:2 155:346 156:170 157:312 158:126
159:369 160:313 161:190 162:277 163:149 164:469
165:332 166:601 167:421 168:719 169:148 170:740
171:69 172:2 173:1247 174:512 175:307 176:1
177:4 178:750 180:750 182:379 183:249 184:205
186:941 187:813 188:910 189:1034 190:4279 192:5729
193:4770 194:3485 195:2923 196:1248 197:2 198:3472
199:3721 200:5582 201:1574 202:8044 203:8315 204:4012
205:2320 206:2430 207:2892 208:3857 209:3436 210:2577
211:1326 212:1876 213:1719 214:752 215:62 216:4819
217:1620 218:523 219:371 220:1190 221:430 222:315
223:87

End of report
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[bgp-stats] Routing Table Report - Japan view

* BGP Routing Table Analysis Reports *
Routing Table Report 04:00 +10GMT Sun 23 Jan, 2011

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

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

BGP routing table entries examined: 343079
Prefixes after maximum aggregation: 154701
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 169220
Total ASes present in the Internet Routing Table: 35680
Prefixes per ASN: 9.62
Origin-only ASes present in the Internet Routing Table: 30745
Origin ASes announcing only one prefix: 14941
Transit ASes present in the Internet Routing Table: 4935
Transit-only ASes present in the Internet Routing Table: 121
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 33
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 317
Unregistered ASNs in the Routing Table: 128
Number of 32-bit ASNs allocated by the RIRs: 1032
Prefixes from 32-bit ASNs in the Routing Table: 0
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 211
Number of addresses announced to Internet: 2341590624
Equivalent to 139 /8s, 145 /16s and 214 /24s
Percentage of available address space announced: 63.2
Percentage of allocated address space announced: 65.2
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 87.7
Total number of prefixes smaller than registry allocations: 141134

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

Prefixes being announced by APNIC Region ASes: 85205
Total APNIC prefixes after maximum aggregation: 28746
APNIC Deaggregation factor: 2.96
Prefixes being announced from the APNIC address blocks: 81991
Unique aggregates announced from the APNIC address blocks: 35494
APNIC Region origin ASes present in the Internet Routing Table: 4306
APNIC Prefixes per ASN: 19.04
APNIC Region origin ASes announcing only one prefix: 1213
APNIC Region transit ASes present in the Internet Routing Table: 693
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 582324512
Equivalent to 34 /8s, 181 /16s and 145 /24s
Percentage of available APNIC address space announced: 78.9

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

Prefixes being announced by ARIN Region ASes: 137965
Total ARIN prefixes after maximum aggregation: 70622
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 108821
Unique aggregates announced from the ARIN address blocks: 44354
ARIN Region origin ASes present in the Internet Routing Table: 14130
ARIN Prefixes per ASN: 7.70
ARIN Region origin ASes announcing only one prefix: 5395
ARIN Region transit ASes present in the Internet Routing Table: 1479
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 745932672
Equivalent to 44 /8s, 118 /16s and 7 /24s
Percentage of available ARIN address space announced: 62.6

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

Prefixes being announced by RIPE Region ASes: 80705
Total RIPE prefixes after maximum aggregation: 46025
RIPE Deaggregation factor: 1.75
Prefixes being announced from the RIPE address blocks: 74120
Unique aggregates announced from the RIPE address blocks: 48076
RIPE Region origin ASes present in the Internet Routing Table: 15209
RIPE Prefixes per ASN: 4.87
RIPE Region origin ASes announcing only one prefix: 7767
RIPE Region transit ASes present in the Internet Routing Table: 2370
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 33
Number of RIPE addresses announced to Internet: 456103488
Equivalent to 27 /8s, 47 /16s and 150 /24s
Percentage of available RIPE address space announced: 75.5

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

Prefixes being announced by LACNIC Region ASes: 31509
Total LACNIC prefixes after maximum aggregation: 7223
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 30296
Unique aggregates announced from the LACNIC address blocks: 15744
LACNIC Region origin ASes present in the Internet Routing Table: 1418
LACNIC Prefixes per ASN: 21.37
LACNIC Region origin ASes announcing only one prefix: 429
LACNIC Region transit ASes present in the Internet Routing Table: 248
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 79566592
Equivalent to 4 /8s, 190 /16s and 23 /24s
Percentage of available LACNIC address space announced: 59.3

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: 7476
Total AfriNIC prefixes after maximum aggregation: 1974
AfriNIC Deaggregation factor: 3.79
Prefixes being announced from the AfriNIC address blocks: 5809
Unique aggregates announced from the AfriNIC address blocks: 1869
AfriNIC Region origin ASes present in the Internet Routing Table: 436
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: 92
Average AfriNIC Region AS path length visible: 5.5
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21753856
Equivalent to 1 /8s, 75 /16s and 240 /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 1911 9485 522 Korea Telecom (KIX)
7545 1586 301 82 TPG Internet Pty Ltd
4755 1400 636 160 TATA Communications formerly
17974 1385 467 27 PT TELEKOMUNIKASI INDONESIA
24560 1095 317 181 Bharti Airtel Ltd., Telemedia
9583 1044 76 487 Sify Limited
4808 1020 2108 287 CNCGROUP IP network: China169
17488 949 162 103 Hathway IP Over Cable Interne
18101 921 117 141 Reliance Infocom Ltd Internet
9829 863 729 48 BSNL National Internet Backbo

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

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

ASN No of nets /20 equiv MaxAgg Description
6389 3710 3855 266 bellsouth.net, inc.
4323 2647 1077 403 Time Warner Telecom
19262 1839 4943 283 Verizon Global Networks
1785 1790 697 133 PaeTec Communications, Inc.
20115 1525 1530 641 Charter Communications
6478 1467 290 91 AT&T Worldnet Services
7018 1366 5650 879 AT&T WorldNet Services
2386 1298 553 934 AT&T Data Communications Serv
22773 1275 2864 77 Cox Communications, Inc.
11492 1258 234 76 Cable One

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

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

ASN No of nets /20 equiv MaxAgg Description
6830 500 1763 306 UPC Distribution Services
9198 462 266 14 Kazakhtelecom Data Network Ad
34984 457 97 137 BILISIM TELEKOM
3292 444 2010 387 TDC Tele Danmark
8866 439 137 24 Bulgarian Telecommunication C
12479 403 577 6 Uni2 Autonomous System
3320 402 7619 351 Deutsche Telekom AG
8551 402 353 46 Bezeq International
702 398 1833 311 UUNET - Commercial IP service
20940 391 91 303 Akamai Technologies European

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

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

ASN No of nets /20 equiv MaxAgg Description
10620 1355 251 165 TVCABLE BOGOTA
8151 1329 2613 363 UniNet S.A. de C.V.
28573 1244 954 80 NET Servicos de Comunicao S.A
6503 1148 355 78 AVANTEL, S.A.
7303 887 461 114 Telecom Argentina Stet-France
14420 604 50 89 CORPORACION NACIONAL DE TELEC
22047 567 310 15 VTR PUNTO NET S.A.
3816 521 222 102 Empresa Nacional de Telecomun
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/current/data-ASnet-LACNIC

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

ASN No of nets /20 equiv MaxAgg Description
24863 755 147 39 LINKdotNET AS number
8452 741 445 11 TEDATA
36992 663 283 155 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 216 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
29571 194 19 11 Ci Telecom Autonomous system
33776 191 12 13 Starcomms Nigeria Limited
2018 167 277 64 Tertiary Education Network
16637 160 440 90 MTN Network Solutions

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

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

ASN No of nets /20 equiv MaxAgg Description
6389 3710 3855 266 bellsouth.net, inc.
4323 2647 1077 403 Time Warner Telecom
4766 1911 9485 522 Korea Telecom (KIX)
19262 1839 4943 283 Verizon Global Networks
1785 1790 697 133 PaeTec Communications, Inc.
7545 1586 301 82 TPG Internet Pty Ltd
20115 1525 1530 641 Charter Communications
6478 1467 290 91 AT&T Worldnet Services
4755 1400 636 160 TATA Communications formerly
17974 1385 467 27 PT TELEKOMUNIKASI INDONESIA

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

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

ASN No of nets Net Savings Description
4323 2647 2244 Time Warner Telecom
1785 1790 1657 PaeTec Communications, Inc.
19262 1839 1556 Verizon Global Networks
7545 1586 1504 TPG Internet Pty Ltd
4766 1911 1389 Korea Telecom (KIX)
6478 1467 1376 AT&T Worldnet Services
17974 1385 1358 PT TELEKOMUNIKASI INDONESIA
4755 1400 1240 TATA Communications formerly
22773 1275 1198 Cox Communications, Inc.
10620 1355 1190 TVCABLE BOGOTA

Complete listing at http://thyme.rand.apnic.net/current/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 4323 Time Warner Telecom
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/current/data-badAS

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

Complete listing at http://thyme.rand.apnic.net/current/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 /8:19 /9:10 /10:25 /11:70 /12:214
/13:438 /14:762 /15:1359 /16:11482 /17:5607 /18:9297
/19:18927 /20:24199 /21:24596 /22:32461 /23:31402 /24:179391
/25:979 /26:1080 /27:575 /28:160 /29:16 /30:2
/31:0 /32:8

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

ASN No of nets Total ann. Description
6389 2289 3710 bellsouth.net, inc.
4323 1430 2647 Time Warner Telecom
6478 1421 1467 AT&T Worldnet Services
10620 1246 1355 TVCABLE BOGOTA
11492 1214 1258 Cable One
18566 1118 1137 Covad Communications
7011 1068 1174 Citizens Utilities
1785 1061 1790 PaeTec Communications, Inc.
19262 952 1839 Verizon Global Networks
6503 934 1148 AVANTEL, S.A.

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

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

1:165 2:26 4:13 5:1 8:330 12:2028
13:1 14:378 15:15 16:3 17:8 20:9
23:1 24:1454 27:544 32:61 33:5 34:2
36:1 37:1 38:690 40:101 41:2301 42:1
44:3 46:516 47:5 49:146 50:55 52:12
55:6 56:2 57:31 58:867 59:483 60:391
61:1131 62:1018 63:1923 64:3754 65:2335 66:4083
67:1760 68:998 69:2877 70:719 71:392 72:1989
73:1 74:2295 75:291 76:327 77:854 78:709
79:435 80:1038 81:817 82:530 83:456 84:641
85:1041 86:528 87:726 88:350 89:1559 90:154
91:3414 92:492 93:1047 94:1147 95:763 96:413
97:248 98:751 99:33 101:18 107:3 108:79
109:853 110:466 111:694 112:309 113:365 114:490
115:636 116:885 117:677 118:630 119:1052 120:240
121:706 122:1608 123:1042 124:1264 125:1208 128:247
129:157 130:171 131:568 132:107 133:20 134:217
135:50 136:216 137:146 138:292 139:127 140:483
141:198 142:361 143:377 144:487 145:52 146:424
147:195 148:625 149:272 150:151 151:230 152:303
153:175 154:3 155:346 156:173 157:341 158:126
159:377 160:314 161:200 162:278 163:159 164:469
165:334 166:600 167:421 168:745 169:151 170:747
171:69 172:2 173:1247 174:512 175:308 176:1
177:4 178:748 180:759 182:391 183:250 184:205
186:958 187:809 188:906 189:1038 190:4361 192:5778
193:4783 194:3494 195:2935 196:1243 197:2 198:3552
199:3744 200:5611 201:1576 202:8285 203:8420 204:4083
205:2343 206:2524 207:2970 208:3862 209:3465 210:2632
211:1335 212:1861 213:1709 214:741 215:62 216:4834
217:1624 218:547 219:373 220:1198 221:446 222:346
223:90

End of report
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Friday, January 21, 2011

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

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sat 22 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: 348213
Prefixes after maximum aggregation: 156267
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 169284
Total ASes present in the Internet Routing Table: 35699
Prefixes per ASN: 9.75
Origin-only ASes present in the Internet Routing Table: 30776
Origin ASes announcing only one prefix: 14893
Transit ASes present in the Internet Routing Table: 4923
Transit-only ASes present in the Internet Routing Table: 112
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 28
Max AS path prepend of ASN (47645) 19
Prefixes from unregistered ASNs in the Routing Table: 406
Unregistered ASNs in the Routing Table: 153
Number of 32-bit ASNs allocated by the RIRs: 1028
Prefixes from 32-bit ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 75
Prefixes being announced from unallocated address space: 220
Number of addresses announced to Internet: 2342085584
Equivalent to 139 /8s, 153 /16s and 99 /24s
Percentage of available address space announced: 63.2
Percentage of allocated address space announced: 65.3
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 87.7
Total number of prefixes smaller than registry allocations: 143355

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

Prefixes being announced by APNIC Region ASes: 83667
Total APNIC prefixes after maximum aggregation: 27963
APNIC Deaggregation factor: 2.99
Prefixes being announced from the APNIC address blocks: 80593
Unique aggregates announced from the APNIC address blocks: 35434
APNIC Region origin ASes present in the Internet Routing Table: 4287
APNIC Prefixes per ASN: 18.80
APNIC Region origin ASes announcing only one prefix: 1225
APNIC Region transit ASes present in the Internet Routing Table: 674
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 582323939
Equivalent to 34 /8s, 181 /16s and 142 /24s
Percentage of available APNIC address space announced: 78.9

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

Prefixes being announced by ARIN Region ASes: 141166
Total ARIN prefixes after maximum aggregation: 72636
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 111685
Unique aggregates announced from the ARIN address blocks: 44282
ARIN Region origin ASes present in the Internet Routing Table: 14140
ARIN Prefixes per ASN: 7.90
ARIN Region origin ASes announcing only one prefix: 5375
ARIN Region transit ASes present in the Internet Routing Table: 1461
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 746083209
Equivalent to 44 /8s, 120 /16s and 83 /24s
Percentage of available ARIN address space announced: 62.6

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

Prefixes being announced by RIPE Region ASes: 84111
Total RIPE prefixes after maximum aggregation: 46354
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 76725
Unique aggregates announced from the RIPE address blocks: 48117
RIPE Region origin ASes present in the Internet Routing Table: 15248
RIPE Prefixes per ASN: 5.03
RIPE Region origin ASes announcing only one prefix: 7725
RIPE Region transit ASes present in the Internet Routing Table: 2382
Average RIPE Region AS path length visible: 4.4
Max RIPE Region AS path length visible: 28
Number of RIPE addresses announced to Internet: 456296633
Equivalent to 27 /8s, 50 /16s and 136 /24s
Percentage of available RIPE address space announced: 75.5

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

Prefixes being announced by LACNIC Region ASes: 31529
Total LACNIC prefixes after maximum aggregation: 7231
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 30317
Unique aggregates announced from the LACNIC address blocks: 15737
LACNIC Region origin ASes present in the Internet Routing Table: 1418
LACNIC Prefixes per ASN: 21.38
LACNIC Region origin ASes announcing only one prefix: 431
LACNIC Region transit ASes present in the Internet Routing Table: 256
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 79639820
Equivalent to 4 /8s, 191 /16s and 53 /24s
Percentage of available LACNIC address space announced: 59.3

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: 7468
Total AfriNIC prefixes after maximum aggregation: 1964
AfriNIC Deaggregation factor: 3.80
Prefixes being announced from the AfriNIC address blocks: 5781
Unique aggregates announced from the AfriNIC address blocks: 1907
AfriNIC Region origin ASes present in the Internet Routing Table: 433
AfriNIC Prefixes per ASN: 13.35
AfriNIC Region origin ASes announcing only one prefix: 137
AfriNIC Region transit ASes present in the Internet Routing Table: 94
Average AfriNIC Region AS path length visible: 4.3
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 21736960
Equivalent to 1 /8s, 75 /16s and 174 /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 1757 9484 513 Korea Telecom (KIX)
7545 1571 299 79 TPG Internet Pty Ltd
4755 1398 376 158 Videsh Sanchar Nigam Ltd. Aut
17974 1386 459 28 PT TELEKOMUNIKASI INDONESIA
24560 1095 317 181 Bharti Airtel Ltd.
9583 1040 76 486 Sify Limited
17488 964 162 103 Hathway IP Over Cable Interne
4808 919 2002 264 CNCGROUP IP network: China169
18101 917 116 138 Reliance Infocom Ltd Internet
9829 862 729 48 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 3709 3855 266 bellsouth.net, inc.
4323 2648 1093 404 Time Warner Telecom
19262 1839 4927 283 Verizon Global Networks
1785 1790 697 133 AppliedTheory Corporation
20115 1570 1533 644 Charter Communications
6478 1465 290 89 AT&T Worldnet Services
7018 1372 5675 886 AT&T WorldNet Services
2386 1298 553 933 AT&T Data Communications Serv
22773 1275 2864 77 Cox Communications, Inc.
11492 1258 234 76 Cable One

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
286 975 710 153 KPNQwest Backbone AS
9116 526 328 32 Goldenlines main autonomous s
3292 503 2010 387 TDC Tele Danmark
6830 501 1763 307 UPC Distribution Services
9198 462 266 14 Kazakhtelecom Corporate Sales
34984 457 97 137 Tellcom Iletisim Hizmetleri
8866 439 133 23 Bulgarian Telecommunication C
8551 404 355 38 Bezeq International
12479 403 577 6 Uni2 Autonomous System
702 398 1833 311 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 1355 251 165 TVCABLE BOGOTA
8151 1337 2597 368 Uninet S.A. de C.V.
28573 1245 954 80 Types of queries are: POCs, o
6503 1150 355 79 AVANTEL, S.A.
7303 887 461 114 Telecom Argentina Stet-France
14420 604 50 89 Types of queries are: POCs, o
22047 567 310 15 Types of queries are: POCs, o
3816 527 222 103 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
27947 456 53 48 Telconet 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
24863 756 147 40 LINKdotNET AS number
8452 741 445 11 TEDATA
36992 658 283 152 Etisalat MISR
3741 263 987 225 The Internet Solution
24835 217 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
29571 194 19 11 Ci Telecom Autonomous system
33776 182 12 14 Starcomms Nigeria Limited
2018 167 277 64 TENET-1
16637 163 425 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 3709 3855 266 bellsouth.net, inc.
4323 2648 1093 404 Time Warner Telecom
19262 1839 4927 283 Verizon Global Networks
1785 1790 697 133 AppliedTheory Corporation
4766 1757 9484 513 Korea Telecom (KIX)
7545 1571 299 79 TPG Internet Pty Ltd
20115 1570 1533 644 Charter Communications
6478 1465 290 89 AT&T Worldnet Services
4755 1398 376 158 Videsh Sanchar Nigam Ltd. Aut
17974 1386 459 28 PT TELEKOMUNIKASI INDONESIA

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 2648 2244 Time Warner Telecom
1785 1790 1657 AppliedTheory Corporation
19262 1839 1556 Verizon Global Networks
7545 1571 1492 TPG Internet Pty Ltd
6478 1465 1376 AT&T Worldnet Services
17974 1386 1358 PT TELEKOMUNIKASI INDONESIA
4766 1757 1244 Korea Telecom (KIX)
4755 1398 1240 Videsh Sanchar Nigam Ltd. Aut
22773 1275 1198 Cox Communications, Inc.
10620 1355 1190 TVCABLE BOGOTA

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 /8:20 /9:10 /10:25 /11:71 /12:215
/13:438 /14:767 /15:1385 /16:11596 /17:5838 /18:9601
/19:19420 /20:24867 /21:24931 /22:32855 /23:31995 /24:181191
/25:362 /26:371 /27:201 /28:373 /29:295 /30:692
/31:46 /32:648

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

ASN No of nets Total ann. Description
6389 2288 3709 bellsouth.net, inc.
4323 1430 2648 Time Warner Telecom
6478 1419 1465 AT&T Worldnet Services
10620 1246 1355 TVCABLE BOGOTA
11492 1214 1258 Cable One
18566 1118 1137 Covad Communications
7011 1068 1174 Citizens Utilities
1785 1061 1790 AppliedTheory Corporation
19262 952 1839 Verizon Global Networks
6503 935 1150 AVANTEL, S.A.

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

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

1:165 2:41 4:17 5:1 8:332 12:2032
13:6 14:378 15:15 16:3 17:8 20:9
23:1 24:1474 27:544 32:128 33:5 34:2
36:1 37:1 38:689 40:101 41:2296 42:1
44:3 46:526 47:5 49:142 50:56 52:12
55:6 56:2 57:41 58:869 59:485 60:391
61:1138 62:1037 63:1932 64:3775 65:2339 66:4105
67:1787 68:1153 69:2982 70:760 71:394 72:2036
73:3 74:2350 75:302 76:336 77:864 78:711
79:445 80:1048 81:824 82:541 83:466 84:661
85:1067 86:530 87:759 88:355 89:1602 90:154
91:3437 92:494 93:1060 94:1191 95:776 96:413
97:249 98:756 99:33 101:18 107:3 108:79
109:870 110:464 111:697 112:309 113:366 114:490
115:633 116:900 117:676 118:631 119:1022 120:240
121:710 122:1608 123:1046 124:1265 125:1212 128:248
129:159 130:171 131:568 132:110 133:20 134:219
135:50 136:216 137:146 138:293 139:140 140:485
141:198 142:362 143:379 144:487 145:52 146:425
147:206 148:625 149:273 150:151 151:230 152:303
153:175 154:3 155:346 156:173 157:342 158:126
159:377 160:313 161:200 162:278 163:159 164:470
165:353 166:601 167:421 168:745 169:154 170:747
171:69 172:2 173:1258 174:557 175:307 176:1
177:4 178:751 180:695 182:396 183:249 184:237
186:956 187:809 188:908 189:1032 190:4352 192:5817
193:4818 194:3550 195:3079 196:1251 197:2 198:3568
199:3758 200:5609 201:1573 202:8446 203:8435 204:4088
205:2346 206:2591 207:2975 208:3879 209:3471 210:2639
211:1333 212:1917 213:1772 214:740 215:62 216:4864
217:1627 218:550 219:374 220:1202 221:445 222:346
223:90

End of report
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