BGP Routing: 2011-06-12

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, June 18, 2011

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

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sun 19 Jun, 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: 365538
Prefixes after maximum aggregation: 164835
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 178044
Total ASes present in the Internet Routing Table: 37936
Prefixes per ASN: 9.64
Origin-only ASes present in the Internet Routing Table: 31676
Origin ASes announcing only one prefix: 15142
Transit ASes present in the Internet Routing Table: 5096
Transit-only ASes present in the Internet Routing Table: 124
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 26
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 3606
Unregistered ASNs in the Routing Table: 453
Number of 32-bit ASNs allocated by the RIRs: 1466
Number of 32-bit ASNs visible in the Routing Table: 1164
Prefixes from 32-bit ASNs in the Routing Table: 2700
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 139
Number of addresses announced to Internet: 2491601615
Equivalent to 148 /8s, 130 /16s and 210 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.0
Total number of prefixes smaller than registry allocations: 152094

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

Prefixes being announced by APNIC Region ASes: 87673
Total APNIC prefixes after maximum aggregation: 29040
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 84261
Unique aggregates announced from the APNIC address blocks: 36126
APNIC Region origin ASes present in the Internet Routing Table: 4468
APNIC Prefixes per ASN: 18.86
APNIC Region origin ASes announcing only one prefix: 1254
APNIC Region transit ASes present in the Internet Routing Table: 688
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 47
Number of APNIC addresses announced to Internet: 622374081
Equivalent to 37 /8s, 24 /16s and 172 /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, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 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: 144038
Total ARIN prefixes after maximum aggregation: 74068
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 115663
Unique aggregates announced from the ARIN address blocks: 46179
ARIN Region origin ASes present in the Internet Routing Table: 14452
ARIN Prefixes per ASN: 8.00
ARIN Region origin ASes announcing only one prefix: 5504
ARIN Region transit ASes present in the Internet Routing Table: 1498
Average ARIN Region AS path length visible: 4.1
Max ARIN Region AS path length visible: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 818720280
Equivalent to 48 /8s, 204 /16s and 174 /24s
Percentage of available ARIN address space announced: 65.1

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, 45/8, 47/8, 48/8, 50/8, 52/8,
53/8, 54/8, 55/8, 56/8, 57/8, 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, 104/8, 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: 88976
Total RIPE prefixes after maximum aggregation: 49169
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 81640
Unique aggregates announced from the RIPE address blocks: 52322
RIPE Region origin ASes present in the Internet Routing Table: 15750
RIPE Prefixes per ASN: 5.18
RIPE Region origin ASes announcing only one prefix: 7808
RIPE Region transit ASes present in the Internet Routing Table: 2465
Average RIPE Region AS path length visible: 4.5
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 862
Number of RIPE addresses announced to Internet: 478077652
Equivalent to 28 /8s, 126 /16s and 226 /24s
Percentage of available RIPE address space announced: 77.0

RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
40960-45055, 47104-52223, 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, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,

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

Prefixes being announced by LACNIC Region ASes: 33539
Total LACNIC prefixes after maximum aggregation: 7572
LACNIC Deaggregation factor: 4.43
Prefixes being announced from the LACNIC address blocks: 32590
Unique aggregates announced from the LACNIC address blocks: 16899
LACNIC Region origin ASes present in the Internet Routing Table: 1466
LACNIC Prefixes per ASN: 22.23
LACNIC Region origin ASes announcing only one prefix: 433
LACNIC Region transit ASes present in the Internet Routing Table: 260
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 239
Number of LACNIC addresses announced to Internet: 84890376
Equivalent to 5 /8s, 15 /16s and 83 /24s
Percentage of available LACNIC address space announced: 56.2

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 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: 8325
Total AfriNIC prefixes after maximum aggregation: 1967
AfriNIC Deaggregation factor: 4.23
Prefixes being announced from the AfriNIC address blocks: 6402
Unique aggregates announced from the AfriNIC address blocks: 1965
AfriNIC Region origin ASes present in the Internet Routing Table: 463
AfriNIC Prefixes per ASN: 13.83
AfriNIC Region origin ASes announcing only one prefix: 143
AfriNIC Region transit ASes present in the Internet Routing Table: 106
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 24249856
Equivalent to 1 /8s, 114 /16s and 6 /24s
Percentage of available AfriNIC address space announced: 36.1

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,

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

ASN No of nets /20 equiv MaxAgg Description
4766 1899 9492 620 Korea Telecom (KIX)
17974 1871 465 43 PT TELEKOMUNIKASI INDONESIA
7545 1536 301 85 TPG Internet Pty Ltd
4755 1476 374 166 Videsh Sanchar Nigam Ltd. Aut
24560 1153 336 187 Bharti Airtel Ltd.
7552 1143 1064 7 Vietel Corporation
9583 1076 79 507 Sify Limited
9829 1045 883 59 BSNL National Internet Backbo
17488 964 182 100 Hathway IP Over Cable Interne
4808 962 2022 279 CNCGROUP IP network: China169

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 3629 3819 251 bellsouth.net, inc.
18566 1957 372 219 Covad Communications
1785 1799 681 122 AppliedTheory Corporation
4323 1657 1097 396 Time Warner Telecom
6478 1641 298 276 AT&T Worldnet Services
20115 1575 1530 637 Charter Communications
19262 1493 4920 308 Verizon Global Networks
7018 1371 7072 897 AT&T WorldNet Services
7029 1358 815 311 Alltel Information Services,
22773 1339 2897 85 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 1051 798 192 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 524 107 182 Tellcom Iletisim Hizmetleri
3292 519 2078 401 TDC Tele Danmark
6830 515 1780 321 UPC Distribution Services
20940 464 135 355 Akamai Technologies European
29049 449 33 46 AzerSat LLC.
8866 444 133 25 Bulgarian Telecommunication C
12479 438 593 7 Uni2 Autonomous System
3320 420 8151 367 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 1529 280 157 TVCABLE BOGOTA
8151 1426 2710 367 Uninet S.A. de C.V.
28573 1255 993 78 Types of queries are: POCs, o
7303 990 506 170 Telecom Argentina Stet-France
6503 753 354 74 AVANTEL, S.A.
14420 683 55 82 Types of queries are: POCs, o
22047 572 322 17 Types of queries are: POCs, o
3816 532 229 98 COLOMBIA TELECOMUNICACIONES S
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 513 53 47 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 794 147 36 LINKdotNET AS number
8452 760 445 11 TEDATA
15475 526 74 8 Nile Online
36992 304 415 14 Etisalat MISR
16637 297 441 87 Johnnic e-Ventures
3741 265 937 226 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 215 12 11 Starcomms Nigeria Limited
24835 211 78 10 RAYA Telecom - Egypt
29571 192 17 11 Ci Telecom Autonomous system

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 3629 3819 251 bellsouth.net, inc.
23456 2700 661 1461 >>UNKNOWN<<
18566 1957 372 219 Covad Communications
4766 1899 9492 620 Korea Telecom (KIX)
17974 1871 465 43 PT TELEKOMUNIKASI INDONESIA
1785 1799 681 122 AppliedTheory Corporation
4323 1657 1097 396 Time Warner Telecom
6478 1641 298 276 AT&T Worldnet Services
20115 1575 1530 637 Charter Communications
7545 1536 301 85 TPG Internet Pty Ltd

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

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

ASN No of nets Net Savings Description
17974 1871 1828 PT TELEKOMUNIKASI INDONESIA
18566 1957 1738 Covad Communications
1785 1799 1677 AppliedTheory Corporation
7545 1536 1451 TPG Internet Pty Ltd
10620 1529 1372 TVCABLE BOGOTA
6478 1641 1365 AT&T Worldnet Services
4755 1476 1310 Videsh Sanchar Nigam Ltd. Aut
4766 1899 1279 Korea Telecom (KIX)
4323 1657 1261 Time Warner Telecom
22773 1339 1254 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
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 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
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 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
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
27.0.128.0/17 7514 Media Exchange, Inc.
41.190.32.0/23 31856 CABSAS
41.190.34.0/23 31856 CABSAS
41.190.36.0/23 31856 CABSAS

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 /8:23 /9:12 /10:28 /11:81 /12:231
/13:462 /14:807 /15:1422 /16:12064 /17:6104 /18:10101
/19:19911 /20:26940 /21:26449 /22:34807 /23:33801 /24:189339
/25:380 /26:357 /27:185 /28:357 /29:281 /30:698
/31:76 /32:622

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

ASN No of nets Total ann. Description
6389 2231 3629 bellsouth.net, inc.
18566 1908 1957 Covad Communications
6478 1604 1641 AT&T Worldnet Services
10620 1419 1529 TVCABLE BOGOTA
23456 1345 2700 >>UNKNOWN<<
11492 1090 1136 Cable One
7029 1079 1358 Alltel Information Services,
7011 1054 1150 Citizens Utilities
1785 1050 1799 AppliedTheory Corporation
286 909 1051 KPNQwest Backbone AS

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

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

1:286 2:64 4:20 5:1 6:3 8:334
12:1977 13:1 14:460 15:15 16:3 17:8
20:10 23:11 24:1665 27:793 31:447 32:128
33:4 34:2 37:1 38:735 40:103 41:2509
42:2 44:3 46:983 47:3 49:188 50:415
52:13 54:2 55:4 56:2 57:41 58:819
59:475 60:387 61:1178 62:1068 63:1953 64:3970
65:2256 66:3888 67:1918 68:1268 69:3149 70:768
71:381 72:1880 73:2 74:2431 75:333 76:346
77:922 78:712 79:477 80:1109 81:855 82:510
83:470 84:679 85:1092 86:571 87:776 88:339
89:1566 90:208 91:3867 92:532 93:1079 94:1334
95:856 96:447 97:249 98:894 99:36 101:72
103:82 106:8 107:14 108:82 109:1012 110:611
111:707 112:305 113:406 114:548 115:667 116:983
117:677 118:831 119:1140 120:311 121:690 122:1629
123:948 124:1267 125:1239 128:248 129:177 130:163
131:581 132:110 133:21 134:213 135:48 136:216
137:138 138:300 139:126 140:480 141:238 142:406
143:412 144:489 145:54 146:447 147:222 148:659
149:247 150:172 151:190 152:331 153:180 154:4
155:398 156:195 157:353 158:138 159:389 160:316
161:208 162:313 163:162 164:500 165:370 166:533
167:424 168:740 169:157 170:838 171:77 172:1
173:1640 174:603 175:375 176:135 177:167 178:1008
180:897 181:19 182:481 183:221 184:383 185:1
186:1241 187:731 188:877 189:906 190:4903 192:5888
193:4979 194:3535 195:3115 196:1236 197:24 198:3601
199:3953 200:5528 201:1500 202:8329 203:8412 204:4198
205:2345 206:2758 207:2823 208:3948 209:3470 210:2713
211:1435 212:2122 213:1774 214:768 215:69 216:4944
217:1651 218:550 219:368 220:1205 221:493 222:360
223:158

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 19 Jun, 2011

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

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

BGP routing table entries examined: 355191
Prefixes after maximum aggregation: 161459
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 178107
Total ASes present in the Internet Routing Table: 36580
Prefixes per ASN: 9.71
Origin-only ASes present in the Internet Routing Table: 31574
Origin ASes announcing only one prefix: 15193
Transit ASes present in the Internet Routing Table: 5006
Transit-only ASes present in the Internet Routing Table: 112
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 27
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 2209
Unregistered ASNs in the Routing Table: 528
Number of 32-bit ASNs allocated by the RIRs: 1466
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2661
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 137
Number of addresses announced to Internet: 2490023168
Equivalent to 148 /8s, 106 /16s and 189 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.0
Total number of prefixes smaller than registry allocations: 146434

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

Prefixes being announced by APNIC Region ASes: 85479
Total APNIC prefixes after maximum aggregation: 28810
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 82830
Unique aggregates announced from the APNIC address blocks: 36195
APNIC Region origin ASes present in the Internet Routing Table: 4432
APNIC Prefixes per ASN: 18.69
APNIC Region origin ASes announcing only one prefix: 1260
APNIC Region transit ASes present in the Internet Routing Table: 670
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 620785408
Equivalent to 37 /8s, 0 /16s and 111 /24s
Percentage of available APNIC address space announced: 78.7

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

Prefixes being announced by ARIN Region ASes: 139580
Total ARIN prefixes after maximum aggregation: 71423
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 111852
Unique aggregates announced from the ARIN address blocks: 46239
ARIN Region origin ASes present in the Internet Routing Table: 14357
ARIN Prefixes per ASN: 7.79
ARIN Region origin ASes announcing only one prefix: 5496
ARIN Region transit ASes present in the Internet Routing Table: 1457
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 24
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 801946880
Equivalent to 47 /8s, 204 /16s and 189 /24s
Percentage of available ARIN address space announced: 63.7

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

Prefixes being announced by RIPE Region ASes: 86130
Total RIPE prefixes after maximum aggregation: 48808
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 79555
Unique aggregates announced from the RIPE address blocks: 52485
RIPE Region origin ASes present in the Internet Routing Table: 15716
RIPE Prefixes per ASN: 5.06
RIPE Region origin ASes announcing only one prefix: 7853
RIPE Region transit ASes present in the Internet Routing Table: 2453
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 27
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 477411584
Equivalent to 28 /8s, 116 /16s and 185 /24s
Percentage of available RIPE address space announced: 76.9

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

Prefixes being announced by LACNIC Region ASes: 32388
Total LACNIC prefixes after maximum aggregation: 7416
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 31791
Unique aggregates announced from the LACNIC address blocks: 16868
LACNIC Region origin ASes present in the Internet Routing Table: 1451
LACNIC Prefixes per ASN: 21.91
LACNIC Region origin ASes announcing only one prefix: 439
LACNIC Region transit ASes present in the Internet Routing Table: 253
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 84824320
Equivalent to 5 /8s, 14 /16s and 81 /24s
Percentage of available LACNIC address space announced: 56.2

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 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: 8223
Total AfriNIC prefixes after maximum aggregation: 2009
AfriNIC Deaggregation factor: 4.09
Prefixes being announced from the AfriNIC address blocks: 6376
Unique aggregates announced from the AfriNIC address blocks: 1962
AfriNIC Region origin ASes present in the Internet Routing Table: 463
AfriNIC Prefixes per ASN: 13.77
AfriNIC Region origin ASes announcing only one prefix: 145
AfriNIC Region transit ASes present in the Internet Routing Table: 103
Average AfriNIC Region AS path length visible: 3.5
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 24249088
Equivalent to 1 /8s, 114 /16s and 3 /24s
Percentage of available AfriNIC address space announced: 36.1

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,

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

ASN No of nets /20 equiv MaxAgg Description
4766 1899 9492 620 Korea Telecom (KIX)
17974 1576 458 44 PT Telekomunikasi Indonesia
7545 1535 301 84 TPG Internet Pty Ltd
4755 1475 374 165 TATA Communications formerly
24560 1153 336 187 Bharti Airtel Ltd., Telemedia
7552 1143 1064 7 Vietel Corporation
9583 1079 80 510 Sify Limited
9829 1046 883 59 National Internet Backbone
4808 953 2009 279 CNCGROUP IP network China169
17488 947 182 100 Hathway IP Over Cable Interne

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 3625 3819 251 BellSouth.net Inc.
18566 1912 365 236 Covad Communications Co.
1785 1799 681 122 PaeTec Communications, Inc.
4323 1659 1097 398 tw telecom holdings, inc.
6478 1641 298 276 AT&T Services, Inc.
20115 1524 1527 637 Charter Communications
19262 1493 4936 308 Verizon Online LLC
7029 1409 1030 205 Alltel Information Services,
7018 1375 7088 901 AT&T Services, Inc.
22773 1338 2897 85 Cox Communications Inc.

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
9116 540 326 31 Goldenlines main autonomous s
34984 524 107 182 BILISIM TELEKOM
6830 512 1780 320 UPC Broadband
3292 466 2078 401 TDC Data Networks
20940 463 135 355 Akamai Technologies European
29049 449 33 46 AzerSat LLC.
8866 444 133 25 Bulgarian Telecommunication C
12479 436 593 7 France Telecom Espana SA
3320 420 8151 367 Deutsche Telekom AG
8551 405 355 38 Bezeq International

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 1529 280 157 Types of queries are: POCs, o
8151 1245 2710 358 Uninet S.A. de C.V.
28573 1242 993 78 Types of queries are: POCs, o
7303 967 506 158 Telecom Argentina S.A.
6503 733 354 74 Axtel, S.A.B. de C.V.
14420 683 55 82 CORPORACION NACIONAL DE TELEC
22047 572 322 17 Types of queries are: POCs, o
3816 532 229 98 Types of queries are: POCs, o
7738 516 986 31 Telecomunicacoes da Bahia S.A
11172 494 100 85 Alestra, S. de R.L. de C.V.

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 792 147 35 LINKdotNET AS number
8452 758 445 11 TEDATA
15475 526 74 8 Nile Online
36992 304 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 215 12 11 Starcomms Nigeria Limited
24835 211 78 10 RAYA Telecom - Egypt
29571 192 17 11 Ci Telecom Autonomous system
16637 150 441 87 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 3625 3819 251 BellSouth.net Inc.
23456 2661 659 1448 32-bit ASN transition
18566 1912 365 236 Covad Communications Co.
4766 1899 9492 620 Korea Telecom (KIX)
1785 1799 681 122 PaeTec Communications, Inc.
4323 1659 1097 398 tw telecom holdings, inc.
6478 1641 298 276 AT&T Services, Inc.
17974 1576 458 44 PT Telekomunikasi Indonesia
7545 1535 301 84 TPG Internet Pty Ltd
10620 1529 280 157 Types of queries are: POCs, o

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

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

ASN No of nets Net Savings Description
1785 1799 1677 PaeTec Communications, Inc.
18566 1912 1676 Covad Communications Co.
17974 1576 1532 PT Telekomunikasi Indonesia
7545 1535 1451 TPG Internet Pty Ltd
10620 1529 1372 Types of queries are: POCs, o
6478 1641 1365 AT&T Services, Inc.
4755 1475 1310 TATA Communications formerly
4766 1899 1279 Korea Telecom (KIX)
4323 1659 1261 tw telecom holdings, inc.
22773 1338 1253 Cox Communications Inc.

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 *
32805 UNALLOCATED 12.1.225.0/24 7018 AT&T Services, Inc.
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T Services, Inc.
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T Services, Inc.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
32567 UNALLOCATED 12.25.107.0/24 4323 tw telecom holdings,
30031 UNALLOCATED 12.27.122.0/24 7018 AT&T Services, Inc.
26095 UNALLOCATED 12.34.8.0/24 7018 AT&T Services, Inc.
21861 UNALLOCATED 12.37.59.0/24 7018 AT&T Services, Inc.
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T Services, Inc.

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 65535 Internet Assigned Numbers Aut
198.18.0.0/15 65333 Internet Assigned Numbers Aut

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

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

Network Origin AS Description
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
27.0.128.0/17 7514 Media EXchange, Inc.
41.190.32.0/23 31856 CABSAS
41.190.34.0/23 31856 CABSAS
41.190.36.0/23 31856 CABSAS

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 /8:23 /9:12 /10:28 /11:81 /12:231
/13:462 /14:800 /15:1394 /16:11918 /17:5816 /18:9727
/19:19464 /20:26046 /21:25923 /22:34151 /23:32929 /24:185675
/25:13 /26:18 /27:26 /28:161 /29:105 /30:58
/31:0 /32:130

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

ASN No of nets Total ann. Description
6389 2227 3625 BellSouth.net Inc.
18566 1869 1912 Covad Communications Co.
6478 1604 1641 AT&T Services, Inc.
10620 1419 1529 Types of queries are: POCs, o
23456 1325 2661 32-bit ASN transition
7029 1089 1409 Alltel Information Services,
11492 1088 1134 CABLE ONE, INC.
7011 1060 1160 Frontier Communications of Am
1785 1050 1799 PaeTec Communications, Inc.
22773 855 1338 Cox Communications Inc.

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

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

1:285 2:42 4:16 5:1 6:3 8:334
12:1973 13:1 14:446 15:15 16:3 17:8
20:10 23:11 24:1648 27:790 31:444 32:59
33:4 34:2 37:1 38:730 40:103 41:2493
42:2 44:3 46:975 47:3 49:188 50:415
52:13 54:2 55:4 56:2 57:30 58:801
59:468 60:385 61:1019 62:1049 63:1930 64:3919
65:2252 66:3848 67:1891 68:1082 69:3036 70:720
71:376 72:1848 74:2373 75:318 76:337 77:879
78:706 79:465 80:1097 81:849 82:498 83:462
84:669 85:1073 86:551 87:759 88:334 89:1529
90:208 91:3854 92:531 93:1048 94:1298 95:836
96:440 97:249 98:878 99:36 101:63 103:78
106:8 107:14 108:71 109:1002 110:603 111:700
112:293 113:398 114:541 115:657 116:948 117:674
118:788 119:1134 120:310 121:645 122:1624 123:938
124:1260 125:1222 128:208 129:168 130:157 131:575
132:102 133:21 134:203 135:48 136:214 137:135
138:300 139:112 140:459 141:238 142:387 143:407
144:486 145:54 146:441 147:211 148:588 149:246
150:164 151:190 152:329 153:180 154:3 155:397
156:192 157:323 158:138 159:382 160:314 161:200
162:310 163:152 164:500 165:350 166:533 167:424
168:735 169:154 170:834 171:77 172:1 173:1621
174:601 175:361 176:135 177:158 178:999 180:883
181:19 182:465 183:221 184:302 185:1 186:1239
187:725 188:857 189:906 190:4880 192:5807 193:4955
194:3487 195:3036 196:1230 197:24 198:3532 199:3912
200:5435 201:1495 202:8098 203:8293 204:4115 205:2318
206:2595 207:2743 208:3926 209:3434 210:2641 211:1417
212:2104 213:1725 214:767 215:69 216:4899 217:1641
218:534 219:361 220:1195 221:475 222:310 223:156

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 19 Jun, 2011

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

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

BGP routing table entries examined: 360395
Prefixes after maximum aggregation: 163519
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 178074
Total ASes present in the Internet Routing Table: 37894
Prefixes per ASN: 9.51
Origin-only ASes present in the Internet Routing Table: 31605
Origin ASes announcing only one prefix: 15177
Transit ASes present in the Internet Routing Table: 5135
Transit-only ASes present in the Internet Routing Table: 134
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 814
Unregistered ASNs in the Routing Table: 439
Number of 32-bit ASNs allocated by the RIRs: 1466
Number of 32-bit ASNs visible in the Routing Table: 1154
Prefixes from 32-bit ASNs in the Routing Table: 2668
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 138
Number of addresses announced to Internet: 2490529088
Equivalent to 148 /8s, 114 /16s and 117 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.0
Total number of prefixes smaller than registry allocations: 150210

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

Prefixes being announced by APNIC Region ASes: 89591
Total APNIC prefixes after maximum aggregation: 30129
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 86084
Unique aggregates announced from the APNIC address blocks: 36080
APNIC Region origin ASes present in the Internet Routing Table: 4485
APNIC Prefixes per ASN: 19.19
APNIC Region origin ASes announcing only one prefix: 1246
APNIC Region transit ASes present in the Internet Routing Table: 704
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 47
Number of APNIC addresses announced to Internet: 622362400
Equivalent to 37 /8s, 24 /16s and 127 /24s
Percentage of available APNIC address space announced: 78.9

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

Prefixes being announced by ARIN Region ASes: 140838
Total ARIN prefixes after maximum aggregation: 72050
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 112809
Unique aggregates announced from the ARIN address blocks: 46243
ARIN Region origin ASes present in the Internet Routing Table: 14427
ARIN Prefixes per ASN: 7.82
ARIN Region origin ASes announcing only one prefix: 5511
ARIN Region transit ASes present in the Internet Routing Table: 1523
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 24
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 818682624
Equivalent to 48 /8s, 204 /16s and 27 /24s
Percentage of available ARIN address space announced: 65.1

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

Prefixes being announced by RIPE Region ASes: 85760
Total RIPE prefixes after maximum aggregation: 48824
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 79194
Unique aggregates announced from the RIPE address blocks: 52479
RIPE Region origin ASes present in the Internet Routing Table: 15716
RIPE Prefixes per ASN: 5.04
RIPE Region origin ASes announcing only one prefix: 7841
RIPE Region transit ASes present in the Internet Routing Table: 2476
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 851
Number of RIPE addresses announced to Internet: 477349632
Equivalent to 28 /8s, 115 /16s and 199 /24s
Percentage of available RIPE address space announced: 76.9

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

Prefixes being announced by LACNIC Region ASes: 33219
Total LACNIC prefixes after maximum aggregation: 7563
LACNIC Deaggregation factor: 4.39
Prefixes being announced from the LACNIC address blocks: 32257
Unique aggregates announced from the LACNIC address blocks: 16885
LACNIC Region origin ASes present in the Internet Routing Table: 1466
LACNIC Prefixes per ASN: 22.00
LACNIC Region origin ASes announcing only one prefix: 436
LACNIC Region transit ASes present in the Internet Routing Table: 264
Average LACNIC Region AS path length visible: 4.7
Max LACNIC Region AS path length visible: 21
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 240
Number of LACNIC addresses announced to Internet: 84877312
Equivalent to 5 /8s, 15 /16s and 32 /24s
Percentage of available LACNIC address space announced: 56.2

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 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: 8102
Total AfriNIC prefixes after maximum aggregation: 1960
AfriNIC Deaggregation factor: 4.13
Prefixes being announced from the AfriNIC address blocks: 6396
Unique aggregates announced from the AfriNIC address blocks: 1965
AfriNIC Region origin ASes present in the Internet Routing Table: 463
AfriNIC Prefixes per ASN: 13.81
AfriNIC Region origin ASes announcing only one prefix: 143
AfriNIC Region transit ASes present in the Internet Routing Table: 102
Average AfriNIC Region AS path length visible: 4.8
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 24249856
Equivalent to 1 /8s, 114 /16s and 6 /24s
Percentage of available AfriNIC address space announced: 36.1

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,

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

ASN No of nets /20 equiv MaxAgg Description
4766 2456 9500 923 Korea Telecom (KIX)
17974 1871 465 43 PT TELEKOMUNIKASI INDONESIA
7545 1536 301 83 TPG Internet Pty Ltd
4755 1478 634 168 TATA Communications formerly
24560 1153 336 187 Bharti Airtel Ltd., Telemedia
7552 1143 1064 7 Vietel Corporation
9583 1079 80 510 Sify Limited
4808 1049 2090 300 CNCGROUP IP network: China169
9829 1046 883 59 BSNL National Internet Backbo
17488 949 182 100 Hathway IP Over Cable Interne

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 3628 3819 250 bellsouth.net, inc.
18566 1913 365 237 Covad Communications
1785 1796 681 122 PaeTec Communications, Inc.
4323 1659 1081 397 Time Warner Telecom
6478 1641 298 276 AT&T Worldnet Services
20115 1524 1527 637 Charter Communications
19262 1493 4936 308 Verizon Global Networks
7018 1360 7054 888 AT&T WorldNet Services
22773 1339 2897 85 Cox Communications, Inc.
7029 1311 790 296 Alltel Information Services,

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
34984 524 107 182 BILISIM TELEKOM
6830 513 1780 320 UPC Distribution Services
3292 466 2078 401 TDC Tele Danmark
20940 462 135 354 Akamai Technologies European
29049 449 33 46 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
12479 438 593 7 Uni2 Autonomous System
3320 420 8151 367 Deutsche Telekom AG
8551 404 354 44 Bezeq International
3301 398 1839 347 TeliaNet Sweden

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 1529 280 157 TVCABLE BOGOTA
8151 1420 2729 368 UniNet S.A. de C.V.
28573 1258 993 78 NET Servicos de Comunicao S.A
7303 989 506 171 Telecom Argentina Stet-France
6503 744 354 74 AVANTEL, S.A.
14420 683 55 82 CORPORACION NACIONAL DE TELEC
22047 572 322 17 VTR PUNTO NET S.A.
3816 529 229 103 Empresa Nacional de Telecomun
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 500 53 52 Telconet 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 795 147 37 LINKdotNET AS number
8452 760 445 11 TEDATA
15475 526 74 8 Nile Online
36992 304 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 215 12 11 Starcomms Nigeria Limited
24835 211 78 10 RAYA Telecom - Egypt
29571 192 17 11 Ci Telecom Autonomous system
16637 150 441 86 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 3628 3819 250 bellsouth.net, inc.
23456 2668 658 1448 32-bit ASN transition
4766 2456 9500 923 Korea Telecom (KIX)
18566 1913 365 237 Covad Communications
17974 1871 465 43 PT TELEKOMUNIKASI INDONESIA
1785 1796 681 122 PaeTec Communications, Inc.
4323 1659 1081 397 Time Warner Telecom
6478 1641 298 276 AT&T Worldnet Services
7545 1536 301 83 TPG Internet Pty Ltd
10620 1529 280 157 TVCABLE BOGOTA

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

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

ASN No of nets Net Savings Description
17974 1871 1828 PT TELEKOMUNIKASI INDONESIA
18566 1913 1676 Covad Communications
1785 1796 1674 PaeTec Communications, Inc.
4766 2456 1533 Korea Telecom (KIX)
7545 1536 1453 TPG Internet Pty Ltd
10620 1529 1372 TVCABLE BOGOTA
6478 1641 1365 AT&T Worldnet Services
4755 1478 1310 TATA Communications formerly
4323 1659 1262 Time Warner Telecom
22773 1339 1254 Cox Communications, Inc.

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

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

Bad AS Designation Network Transit AS Description
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom
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
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 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 /8:23 /9:12 /10:28 /11:81 /12:231
/13:462 /14:801 /15:1394 /16:11948 /17:5839 /18:9795
/19:19380 /20:26027 /21:25999 /22:34378 /23:33262 /24:187408
/25:1093 /26:1273 /27:731 /28:213 /29:9 /30:2
/31:0 /32:6

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

ASN No of nets Total ann. Description
6389 2231 3628 bellsouth.net, inc.
18566 1870 1913 Covad Communications
6478 1604 1641 AT&T Worldnet Services
10620 1419 1529 TVCABLE BOGOTA
23456 1329 2668 32-bit ASN transition
11492 1090 1136 Cable One
7029 1058 1311 Alltel Information Services,
7011 1053 1149 Citizens Utilities
1785 1050 1796 PaeTec Communications, Inc.
22773 856 1339 Cox Communications, Inc.

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

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

1:286 2:43 4:16 5:1 6:3 8:333
12:1974 13:1 14:460 15:15 16:3 17:8
20:10 23:11 24:1652 27:791 31:444 32:64
33:4 34:2 37:1 38:734 40:103 41:2507
42:2 44:3 46:976 47:3 49:188 50:415
52:13 54:2 55:4 56:2 57:32 58:816
59:473 60:387 61:1182 62:1050 63:1935 64:3942
65:2252 66:3861 67:1890 68:1089 69:3039 70:723
71:376 72:1846 74:2377 75:319 76:338 77:881
78:707 79:456 80:1098 81:848 82:493 83:459
84:667 85:1079 86:552 87:757 88:333 89:1529
90:208 91:3852 92:531 93:1046 94:1295 95:834
96:445 97:249 98:878 99:36 101:72 103:82
106:8 107:14 108:71 109:1006 110:605 111:706
112:303 113:404 114:541 115:664 116:968 117:677
118:832 119:1146 120:311 121:669 122:1629 123:947
124:1264 125:1235 128:247 129:174 130:163 131:579
132:111 133:21 134:212 135:48 136:216 137:138
138:300 139:114 140:480 141:238 142:403 143:410
144:483 145:54 146:444 147:211 148:656 149:247
150:172 151:189 152:332 153:180 154:4 155:397
156:195 157:352 158:138 159:389 160:316 161:208
162:313 163:162 164:500 165:350 166:533 167:424
168:738 169:156 170:838 171:77 172:1 173:1622
174:601 175:375 176:135 177:158 178:1000 180:890
181:19 182:476 183:221 184:302 185:1 186:1240
187:730 188:857 189:902 190:4898 192:5856 193:4949
194:3492 195:3033 196:1225 197:24 198:3587 199:3941
200:5505 201:1500 202:8319 203:8360 204:4189 205:2338
206:2682 207:2813 208:3933 209:3459 210:2705 211:1424
212:2096 213:1727 214:768 215:69 216:4924 217:1641
218:546 219:365 220:1201 221:491 222:360 223:158

End of report
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Friday, June 17, 2011

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

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sat 18 Jun, 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: 365582
Prefixes after maximum aggregation: 164809
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 178733
Total ASes present in the Internet Routing Table: 37942
Prefixes per ASN: 9.64
Origin-only ASes present in the Internet Routing Table: 31687
Origin ASes announcing only one prefix: 15157
Transit ASes present in the Internet Routing Table: 5092
Transit-only ASes present in the Internet Routing Table: 122
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 26
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 3606
Unregistered ASNs in the Routing Table: 452
Number of 32-bit ASNs allocated by the RIRs: 1463
Number of 32-bit ASNs visible in the Routing Table: 1163
Prefixes from 32-bit ASNs in the Routing Table: 2702
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 143
Number of addresses announced to Internet: 2489599183
Equivalent to 148 /8s, 100 /16s and 68 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.0
Total number of prefixes smaller than registry allocations: 152042

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

Prefixes being announced by APNIC Region ASes: 87700
Total APNIC prefixes after maximum aggregation: 29021
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 84309
Unique aggregates announced from the APNIC address blocks: 36877
APNIC Region origin ASes present in the Internet Routing Table: 4466
APNIC Prefixes per ASN: 18.88
APNIC Region origin ASes announcing only one prefix: 1258
APNIC Region transit ASes present in the Internet Routing Table: 687
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 46
Number of APNIC addresses announced to Internet: 620277953
Equivalent to 36 /8s, 248 /16s and 176 /24s
Percentage of available APNIC address space announced: 78.7

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

Prefixes being announced by ARIN Region ASes: 144097
Total ARIN prefixes after maximum aggregation: 74070
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 115709
Unique aggregates announced from the ARIN address blocks: 46159
ARIN Region origin ASes present in the Internet Routing Table: 14456
ARIN Prefixes per ASN: 8.00
ARIN Region origin ASes announcing only one prefix: 5508
ARIN Region transit ASes present in the Internet Routing Table: 1492
Average ARIN Region AS path length visible: 4.1
Max ARIN Region AS path length visible: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 818701848
Equivalent to 48 /8s, 204 /16s and 102 /24s
Percentage of available ARIN address space announced: 65.1

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

Prefixes being announced by RIPE Region ASes: 89053
Total RIPE prefixes after maximum aggregation: 49162
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 81719
Unique aggregates announced from the RIPE address blocks: 52297
RIPE Region origin ASes present in the Internet Routing Table: 15755
RIPE Prefixes per ASN: 5.19
RIPE Region origin ASes announcing only one prefix: 7813
RIPE Region transit ASes present in the Internet Routing Table: 2470
Average RIPE Region AS path length visible: 4.5
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 862
Number of RIPE addresses announced to Internet: 478057684
Equivalent to 28 /8s, 126 /16s and 148 /24s
Percentage of available RIPE address space announced: 77.0

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

Prefixes being announced by LACNIC Region ASes: 33437
Total LACNIC prefixes after maximum aggregation: 7579
LACNIC Deaggregation factor: 4.41
Prefixes being announced from the LACNIC address blocks: 32548
Unique aggregates announced from the LACNIC address blocks: 16886
LACNIC Region origin ASes present in the Internet Routing Table: 1468
LACNIC Prefixes per ASN: 22.17
LACNIC Region origin ASes announcing only one prefix: 435
LACNIC Region transit ASes present in the Internet Routing Table: 261
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 239
Number of LACNIC addresses announced to Internet: 84891656
Equivalent to 5 /8s, 15 /16s and 88 /24s
Percentage of available LACNIC address space announced: 56.2

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 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: 8308
Total AfriNIC prefixes after maximum aggregation: 1970
AfriNIC Deaggregation factor: 4.22
Prefixes being announced from the AfriNIC address blocks: 6392
Unique aggregates announced from the AfriNIC address blocks: 1967
AfriNIC Region origin ASes present in the Internet Routing Table: 463
AfriNIC Prefixes per ASN: 13.81
AfriNIC Region origin ASes announcing only one prefix: 143
AfriNIC Region transit ASes present in the Internet Routing Table: 105
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 24242432
Equivalent to 1 /8s, 113 /16s and 233 /24s
Percentage of available AfriNIC address space announced: 36.1

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,

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

ASN No of nets /20 equiv MaxAgg Description
4766 1899 9492 620 Korea Telecom (KIX)
17974 1879 465 43 PT TELEKOMUNIKASI INDONESIA
7545 1537 301 86 TPG Internet Pty Ltd
4755 1476 374 166 Videsh Sanchar Nigam Ltd. Aut
24560 1153 336 187 Bharti Airtel Ltd.
7552 1143 1064 7 Vietel Corporation
9583 1076 79 507 Sify Limited
9829 1041 879 56 BSNL National Internet Backbo
17488 965 190 101 Hathway IP Over Cable Interne
4808 961 2022 279 CNCGROUP IP network: China169

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 3630 3819 254 bellsouth.net, inc.
18566 1957 372 219 Covad Communications
1785 1799 681 122 AppliedTheory Corporation
4323 1658 1097 397 Time Warner Telecom
6478 1634 296 275 AT&T Worldnet Services
20115 1575 1530 637 Charter Communications
19262 1493 4920 308 Verizon Global Networks
7018 1373 7072 898 AT&T WorldNet Services
7029 1359 815 312 Alltel Information Services,
22773 1338 2897 85 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 1051 798 192 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 524 107 182 Tellcom Iletisim Hizmetleri
3292 519 2078 401 TDC Tele Danmark
6830 515 1780 321 UPC Distribution Services
20940 464 135 355 Akamai Technologies European
29049 449 33 46 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
12479 435 593 7 Uni2 Autonomous System
3320 421 8151 368 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 1523 278 155 TVCABLE BOGOTA
8151 1425 2710 363 Uninet S.A. de C.V.
28573 1258 993 78 Types of queries are: POCs, o
7303 990 506 170 Telecom Argentina Stet-France
6503 753 354 73 AVANTEL, S.A.
14420 683 55 82 Types of queries are: POCs, o
22047 572 322 17 Types of queries are: POCs, o
3816 533 229 98 COLOMBIA TELECOMUNICACIONES S
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 512 53 47 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 794 147 36 LINKdotNET AS number
8452 763 445 11 TEDATA
15475 526 74 8 Nile Online
36992 302 415 14 Etisalat MISR
16637 297 441 87 Johnnic e-Ventures
3741 265 937 226 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 215 12 11 Starcomms Nigeria Limited
24835 211 78 10 RAYA Telecom - Egypt
29571 192 17 11 Ci Telecom Autonomous system

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 3630 3819 254 bellsouth.net, inc.
23456 2702 662 1457 >>UNKNOWN<<
18566 1957 372 219 Covad Communications
4766 1899 9492 620 Korea Telecom (KIX)
17974 1879 465 43 PT TELEKOMUNIKASI INDONESIA
1785 1799 681 122 AppliedTheory Corporation
4323 1658 1097 397 Time Warner Telecom
6478 1634 296 275 AT&T Worldnet Services
20115 1575 1530 637 Charter Communications
7545 1537 301 86 TPG Internet Pty Ltd

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

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

ASN No of nets Net Savings Description
17974 1879 1836 PT TELEKOMUNIKASI INDONESIA
18566 1957 1738 Covad Communications
1785 1799 1677 AppliedTheory Corporation
7545 1537 1451 TPG Internet Pty Ltd
10620 1523 1368 TVCABLE BOGOTA
6478 1634 1359 AT&T Worldnet Services
4755 1476 1310 Videsh Sanchar Nigam Ltd. Aut
4766 1899 1279 Korea Telecom (KIX)
4323 1658 1261 Time Warner Telecom
22773 1338 1253 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
--------------------------------

Network Origin AS Description
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
27.0.128.0/17 7514 Media Exchange, Inc.
31.132.8.0/21 15478 White Market Media SRL
31.132.32.0/20 15478 White Market Media SRL
41.190.32.0/23 31856 CABSAS

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 /8:22 /9:12 /10:28 /11:81 /12:231
/13:462 /14:807 /15:1422 /16:12065 /17:6105 /18:10102
/19:19906 /20:26935 /21:26441 /22:34803 /23:33830 /24:189382
/25:381 /26:355 /27:184 /28:350 /29:280 /30:698
/31:76 /32:624

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

ASN No of nets Total ann. Description
6389 2232 3630 bellsouth.net, inc.
18566 1908 1957 Covad Communications
6478 1597 1634 AT&T Worldnet Services
10620 1413 1523 TVCABLE BOGOTA
23456 1345 2702 >>UNKNOWN<<
11492 1090 1136 Cable One
7029 1080 1359 Alltel Information Services,
7011 1059 1159 Citizens Utilities
1785 1050 1799 AppliedTheory Corporation
286 909 1051 KPNQwest Backbone AS

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

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

1:287 2:65 4:20 5:1 6:3 8:336
12:1975 13:1 14:464 15:15 16:3 17:8
20:10 23:11 24:1666 27:792 31:447 32:128
33:4 34:2 37:1 38:735 40:103 41:2510
42:2 44:3 46:983 47:3 49:188 50:409
52:13 54:2 55:4 56:2 57:41 58:850
59:474 60:387 61:1184 62:1068 63:1953 64:3971
65:2272 66:3887 67:1919 68:1268 69:3135 70:768
71:381 72:1920 73:2 74:2431 75:333 76:347
77:922 78:712 79:481 80:1123 81:853 82:510
83:472 84:677 85:1095 86:600 87:776 88:339
89:1569 90:208 91:3868 92:531 93:1081 94:1333
95:859 96:447 97:249 98:895 99:36 101:70
103:79 106:7 107:14 108:82 109:1014 110:613
111:710 112:305 113:401 114:547 115:670 116:982
117:677 118:831 119:1143 120:311 121:689 122:1628
123:946 124:1266 125:1236 128:248 129:177 130:165
131:580 132:111 133:21 134:215 135:48 136:216
137:138 138:300 139:125 140:480 141:238 142:406
143:412 144:467 145:54 146:452 147:222 148:609
149:247 150:172 151:190 152:332 153:180 154:4
155:398 156:194 157:353 158:138 159:389 160:317
161:208 162:313 163:162 164:500 165:370 166:532
167:424 168:739 169:157 170:838 171:77 172:1
173:1633 174:603 175:373 176:135 177:165 178:1008
180:897 181:19 182:481 183:220 184:382 185:1
186:1240 187:727 188:877 189:907 190:4895 192:5887
193:4982 194:3548 195:3161 196:1228 197:23 198:3604
199:3952 200:5548 201:1492 202:8326 203:8408 204:4198
205:2350 206:2760 207:2822 208:3940 209:3470 210:2719
211:1430 212:2062 213:1774 214:770 215:69 216:4952
217:1650 218:550 219:368 220:1205 221:493 222:359
223:156

End of report
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