BGP Routing: 2011-06-05

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 11, 2011

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

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sun 12 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: 364362
Prefixes after maximum aggregation: 164028
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 178270
Total ASes present in the Internet Routing Table: 37851
Prefixes per ASN: 9.63
Origin-only ASes present in the Internet Routing Table: 31658
Origin ASes announcing only one prefix: 15116
Transit ASes present in the Internet Routing Table: 5041
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: 29
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 3555
Unregistered ASNs in the Routing Table: 435
Number of 32-bit ASNs allocated by the RIRs: 1445
Number of 32-bit ASNs visible in the Routing Table: 1152
Prefixes from 32-bit ASNs in the Routing Table: 2679
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 164
Number of addresses announced to Internet: 2487083976
Equivalent to 148 /8s, 61 /16s and 227 /24s
Percentage of available address space announced: 67.1
Percentage of allocated address space announced: 67.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.1
Total number of prefixes smaller than registry allocations: 151867

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

Prefixes being announced by APNIC Region ASes: 87108
Total APNIC prefixes after maximum aggregation: 28983
APNIC Deaggregation factor: 3.01
Prefixes being announced from the APNIC address blocks: 83666
Unique aggregates announced from the APNIC address blocks: 36692
APNIC Region origin ASes present in the Internet Routing Table: 4459
APNIC Prefixes per ASN: 18.76
APNIC Region origin ASes announcing only one prefix: 1258
APNIC Region transit ASes present in the Internet Routing Table: 685
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: 620150466
Equivalent to 36 /8s, 246 /16s and 190 /24s
Percentage of available APNIC address space announced: 78.6

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 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: 144045
Total ARIN prefixes after maximum aggregation: 73589
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 115647
Unique aggregates announced from the ARIN address blocks: 46009
ARIN Region origin ASes present in the Internet Routing Table: 14428
ARIN Prefixes per ASN: 8.02
ARIN Region origin ASes announcing only one prefix: 5489
ARIN Region transit ASes present in the Internet Routing Table: 1476
Average ARIN Region AS path length visible: 4.1
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 818716696
Equivalent to 48 /8s, 204 /16s and 160 /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: 88862
Total RIPE prefixes after maximum aggregation: 49069
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 81523
Unique aggregates announced from the RIPE address blocks: 52203
RIPE Region origin ASes present in the Internet Routing Table: 15720
RIPE Prefixes per ASN: 5.19
RIPE Region origin ASes announcing only one prefix: 7794
RIPE Region transit ASes present in the Internet Routing Table: 2456
Average RIPE Region AS path length visible: 4.4
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 852
Number of RIPE addresses announced to Internet: 477585612
Equivalent to 28 /8s, 119 /16s and 96 /24s
Percentage of available RIPE address space announced: 76.9

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: 33228
Total LACNIC prefixes after maximum aggregation: 7545
LACNIC Deaggregation factor: 4.40
Prefixes being announced from the LACNIC address blocks: 32345
Unique aggregates announced from the LACNIC address blocks: 16981
LACNIC Region origin ASes present in the Internet Routing Table: 1463
LACNIC Prefixes per ASN: 22.11
LACNIC Region origin ASes announcing only one prefix: 436
LACNIC Region transit ASes present in the Internet Routing Table: 259
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 237
Number of LACNIC addresses announced to Internet: 84849928
Equivalent to 5 /8s, 14 /16s and 181 /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: 8155
Total AfriNIC prefixes after maximum aggregation: 1855
AfriNIC Deaggregation factor: 4.40
Prefixes being announced from the AfriNIC address blocks: 6348
Unique aggregates announced from the AfriNIC address blocks: 1874
AfriNIC Region origin ASes present in the Internet Routing Table: 456
AfriNIC Prefixes per ASN: 13.92
AfriNIC Region origin ASes announcing only one prefix: 139
AfriNIC Region transit ASes present in the Internet Routing Table: 102
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: 5
Number of AfriNIC addresses announced to Internet: 24100864
Equivalent to 1 /8s, 111 /16s and 192 /24s
Percentage of available AfriNIC address space announced: 35.9

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 1904 9492 620 Korea Telecom (KIX)
17974 1558 441 38 PT TELEKOMUNIKASI INDONESIA
7545 1537 301 86 TPG Internet Pty Ltd
4755 1469 374 164 Videsh Sanchar Nigam Ltd. Aut
24560 1153 336 187 Bharti Airtel Ltd.
7552 1146 1064 7 Vietel Corporation
9583 1081 80 509 Sify Limited
9829 1037 876 66 BSNL National Internet Backbo
4808 967 2024 276 CNCGROUP IP network: China169
17488 960 189 103 Hathway IP Over Cable Interne

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 3628 3822 253 bellsouth.net, inc.
4323 1960 1097 399 Time Warner Telecom
18566 1957 372 219 Covad Communications
1785 1797 681 122 AppliedTheory Corporation
6478 1728 319 50 AT&T Worldnet Services
20115 1590 1544 633 Charter Communications
19262 1490 4915 314 Verizon Global Networks
7018 1374 7053 901 AT&T WorldNet Services
22773 1340 2897 87 Cox Communications, Inc.
2386 1272 537 912 AT&T Data Communications Serv

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 1050 798 192 KPNQwest Backbone AS
9116 539 326 30 Goldenlines main autonomous s
34984 521 106 180 Tellcom Iletisim Hizmetleri
3292 517 2078 399 TDC Tele Danmark
6830 515 1780 321 UPC Distribution Services
20940 463 135 354 Akamai Technologies European
29049 451 33 48 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
12479 438 593 7 Uni2 Autonomous System
3320 426 8152 371 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 1513 278 157 TVCABLE BOGOTA
28573 1321 992 80 Types of queries are: POCs, o
8151 1269 2708 361 Uninet S.A. de C.V.
7303 990 506 170 Telecom Argentina Stet-France
6503 740 354 74 AVANTEL, S.A.
14420 677 54 80 Types of queries are: POCs, o
22047 564 310 15 Types of queries are: POCs, o
3816 533 231 93 COLOMBIA TELECOMUNICACIONES S
13489 519 263 122 Orbitel S.A. E.S.P.
7738 516 986 31 Telecomunicacoes da Bahia S.A

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

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

ASN No of nets /20 equiv MaxAgg Description
8452 797 445 11 TEDATA
24863 796 147 38 LINKdotNET AS number
15475 528 74 8 Nile Online
36992 308 415 17 Etisalat MISR
16637 296 441 87 Johnnic e-Ventures
3741 264 937 225 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 217 12 11 Starcomms Nigeria Limited
24835 210 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 3628 3822 253 bellsouth.net, inc.
23456 2679 651 1447 >>UNKNOWN<<
4323 1960 1097 399 Time Warner Telecom
18566 1957 372 219 Covad Communications
4766 1904 9492 620 Korea Telecom (KIX)
1785 1797 681 122 AppliedTheory Corporation
6478 1728 319 50 AT&T Worldnet Services
20115 1590 1544 633 Charter Communications
17974 1558 441 38 PT TELEKOMUNIKASI INDONESIA
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
18566 1957 1738 Covad Communications
6478 1728 1678 AT&T Worldnet Services
1785 1797 1675 AppliedTheory Corporation
4323 1960 1561 Time Warner Telecom
17974 1558 1520 PT TELEKOMUNIKASI INDONESIA
7545 1537 1451 TPG Internet Pty Ltd
10620 1513 1356 TVCABLE BOGOTA
4755 1469 1305 Videsh Sanchar Nigam Ltd. Aut
4766 1904 1284 Korea Telecom (KIX)
22773 1340 1253 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 1239 Sprint
26973 UNALLOCATED 12.39.154.0/23 1239 Sprint
26973 UNALLOCATED 12.39.155.0/24 1239 Sprint
26973 UNALLOCATED 12.39.159.0/24 1239 Sprint
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 /8:22 /9:12 /10:28 /11:81 /12:230
/13:462 /14:806 /15:1422 /16:12044 /17:6101 /18:10094
/19:19907 /20:26684 /21:26476 /22:34676 /23:33758 /24:188776
/25:379 /26:351 /27:186 /28:182 /29:280 /30:683
/31:76 /32:646

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

ASN No of nets Total ann. Description
6389 2231 3628 bellsouth.net, inc.
18566 1908 1957 Covad Communications
6478 1682 1728 AT&T Worldnet Services
10620 1403 1513 TVCABLE BOGOTA
23456 1334 2679 >>UNKNOWN<<
11492 1090 1136 Cable One
7011 1061 1161 Citizens Utilities
1785 1050 1797 AppliedTheory Corporation
7029 931 1203 Alltel Information Services,
286 908 1050 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 2:69 4:20 5:1 6:3 8:339
12:1979 13:1 14:461 15:15 16:3 17:8
20:10 23:11 24:1624 27:774 31:434 32:124
33:4 34:2 37:1 38:733 40:103 41:2521
42:2 44:3 46:964 47:3 49:188 50:409
52:13 54:2 55:3 56:2 57:42 58:843
59:477 60:387 61:1125 62:1070 63:1950 64:3964
65:2250 66:4160 67:1910 68:1264 69:3108 70:750
71:377 72:1881 73:2 74:2409 75:323 76:349
77:923 78:710 79:480 80:1117 81:841 82:509
83:479 84:677 85:1090 86:600 87:777 88:336
89:1570 90:204 91:3852 92:527 93:1066 94:1341
95:857 96:446 97:251 98:880 99:36 101:67
103:56 106:6 107:11 108:82 109:979 110:608
111:711 112:301 113:402 114:546 115:689 116:971
117:674 118:796 119:1140 120:310 121:690 122:1623
123:949 124:1269 125:1219 128:262 129:178 130:164
131:580 132:110 133:19 134:215 135:48 136:214
137:143 138:301 139:123 140:479 141:238 142:406
143:416 144:492 145:54 146:447 147:223 148:604
149:247 150:172 151:187 152:328 153:180 154:3
155:398 156:195 157:354 158:137 159:380 160:315
161:208 162:309 163:165 164:500 165:371 166:530
167:423 168:730 169:156 170:837 171:77 172:1
173:1624 174:587 175:371 176:134 177:154 178:1008
180:888 181:18 182:471 183:216 184:378 185:1
186:1208 187:770 188:868 189:906 190:4897 192:5860
193:4938 194:3552 195:3133 196:1224 197:20 198:3585
199:3925 200:5516 201:1480 202:8313 203:8361 204:4197
205:2348 206:2760 207:2831 208:3958 209:3481 210:2720
211:1404 212:2065 213:1759 214:739 215:69 216:4942
217:1662 218:551 219:367 220:1208 221:492 222:317
223:156

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 12 Jun, 2011

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

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

BGP routing table entries examined: 354643
Prefixes after maximum aggregation: 160814
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 178432
Total ASes present in the Internet Routing Table: 36520
Prefixes per ASN: 9.71
Origin-only ASes present in the Internet Routing Table: 31541
Origin ASes announcing only one prefix: 15171
Transit ASes present in the Internet Routing Table: 4979
Transit-only ASes present in the Internet Routing Table: 115
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: 2175
Unregistered ASNs in the Routing Table: 511
Number of 32-bit ASNs allocated by the RIRs: 1445
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2654
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 160
Number of addresses announced to Internet: 2487042304
Equivalent to 148 /8s, 61 /16s and 65 /24s
Percentage of available address space announced: 67.1
Percentage of allocated address space announced: 67.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.1
Total number of prefixes smaller than registry allocations: 146432

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

Prefixes being announced by APNIC Region ASes: 85160
Total APNIC prefixes after maximum aggregation: 28771
APNIC Deaggregation factor: 2.96
Prefixes being announced from the APNIC address blocks: 82465
Unique aggregates announced from the APNIC address blocks: 36762
APNIC Region origin ASes present in the Internet Routing Table: 4423
APNIC Prefixes per ASN: 18.64
APNIC Region origin ASes announcing only one prefix: 1265
APNIC Region transit ASes present in the Internet Routing Table: 669
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: 618569984
Equivalent to 36 /8s, 222 /16s and 161 /24s
Percentage of available APNIC address space announced: 78.4

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

Prefixes being announced by ARIN Region ASes: 139539
Total ARIN prefixes after maximum aggregation: 71029
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 111805
Unique aggregates announced from the ARIN address blocks: 46075
ARIN Region origin ASes present in the Internet Routing Table: 14340
ARIN Prefixes per ASN: 7.80
ARIN Region origin ASes announcing only one prefix: 5487
ARIN Region transit ASes present in the Internet Routing Table: 1440
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 801960192
Equivalent to 47 /8s, 204 /16s and 241 /24s
Percentage of available ARIN address space announced: 63.7

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

Prefixes being announced by RIPE Region ASes: 85928
Total RIPE prefixes after maximum aggregation: 48674
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 79362
Unique aggregates announced from the RIPE address blocks: 52382
RIPE Region origin ASes present in the Internet Routing Table: 15687
RIPE Prefixes per ASN: 5.06
RIPE Region origin ASes announcing only one prefix: 7841
RIPE Region transit ASes present in the Internet Routing Table: 2452
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: 477151744
Equivalent to 28 /8s, 112 /16s and 194 /24s
Percentage of available RIPE address space announced: 76.9

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

Prefixes being announced by LACNIC Region ASes: 32459
Total LACNIC prefixes after maximum aggregation: 7405
LACNIC Deaggregation factor: 4.38
Prefixes being announced from the LACNIC address blocks: 31904
Unique aggregates announced from the LACNIC address blocks: 16963
LACNIC Region origin ASes present in the Internet Routing Table: 1450
LACNIC Prefixes per ASN: 22.00
LACNIC Region origin ASes announcing only one prefix: 438
LACNIC Region transit ASes present in the Internet Routing Table: 248
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: 84801024
Equivalent to 5 /8s, 13 /16s and 246 /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: 8179
Total AfriNIC prefixes after maximum aggregation: 1962
AfriNIC Deaggregation factor: 4.17
Prefixes being announced from the AfriNIC address blocks: 6336
Unique aggregates announced from the AfriNIC address blocks: 1873
AfriNIC Region origin ASes present in the Internet Routing Table: 456
AfriNIC Prefixes per ASN: 13.89
AfriNIC Region origin ASes announcing only one prefix: 140
AfriNIC Region transit ASes present in the Internet Routing Table: 100
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: 24152320
Equivalent to 1 /8s, 112 /16s and 137 /24s
Percentage of available AfriNIC address space announced: 36.0

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 1904 9492 620 Korea Telecom (KIX)
17974 1554 441 38 PT Telekomunikasi Indonesia
7545 1536 301 85 TPG Internet Pty Ltd
4755 1466 374 164 TATA Communications formerly
24560 1153 336 187 Bharti Airtel Ltd., Telemedia
7552 1146 1064 7 Vietel Corporation
9583 1081 80 509 Sify Limited
9829 1041 878 60 National Internet Backbone
4808 960 2017 278 CNCGROUP IP network China169
17488 944 191 102 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 3628 3822 253 BellSouth.net Inc.
4323 1960 1097 400 tw telecom holdings, inc.
18566 1912 365 236 Covad Communications Co.
1785 1796 681 121 PaeTec Communications, Inc.
6478 1728 319 50 AT&T Services, Inc.
20115 1539 1541 633 Charter Communications
19262 1493 4936 308 Verizon Online LLC
7018 1376 7070 903 AT&T Services, Inc.
22773 1339 2897 87 Cox Communications Inc.
2386 1272 537 912 AT&T Data Communications Serv

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 539 326 30 Goldenlines main autonomous s
34984 521 106 180 BILISIM TELEKOM
6830 512 1780 320 UPC Broadband
3292 464 2078 399 TDC Data Networks
20940 462 135 354 Akamai Technologies European
29049 451 33 48 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
12479 438 593 7 France Telecom Espana SA
3320 424 8152 369 Deutsche Telekom AG
8551 407 356 39 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 1513 278 157 Types of queries are: POCs, o
28573 1304 992 80 Types of queries are: POCs, o
8151 1248 2708 357 Uninet S.A. de C.V.
7303 967 506 158 Telecom Argentina S.A.
6503 731 354 74 Axtel, S.A.B. de C.V.
14420 677 54 80 CORPORACION NACIONAL DE TELEC
22047 564 310 15 Types of queries are: POCs, o
3816 532 231 93 Types of queries are: POCs, o
13489 517 262 122 EPM Telecomunicaciones S.A. E
7738 516 986 31 Telecomunicacoes da Bahia 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
8452 794 445 11 TEDATA
24863 792 147 35 LINKdotNET AS number
15475 528 74 8 Nile Online
36992 308 415 17 Etisalat MISR
3741 264 937 225 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 217 12 11 Starcomms Nigeria Limited
24835 210 78 10 RAYA Telecom - Egypt
29571 192 17 11 Ci Telecom Autonomous system
11380 181 125 57 INTERNETOFFICEPARKS

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 3628 3822 253 BellSouth.net Inc.
23456 2654 650 1440 32-bit ASN transition
4323 1960 1097 400 tw telecom holdings, inc.
18566 1912 365 236 Covad Communications Co.
4766 1904 9492 620 Korea Telecom (KIX)
1785 1796 681 121 PaeTec Communications, Inc.
6478 1728 319 50 AT&T Services, Inc.
17974 1554 441 38 PT Telekomunikasi Indonesia
20115 1539 1541 633 Charter Communications
7545 1536 301 85 TPG Internet Pty Ltd

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

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

ASN No of nets Net Savings Description
6478 1728 1678 AT&T Services, Inc.
18566 1912 1676 Covad Communications Co.
1785 1796 1675 PaeTec Communications, Inc.
4323 1960 1560 tw telecom holdings, inc.
17974 1554 1516 PT Telekomunikasi Indonesia
7545 1536 1451 TPG Internet Pty Ltd
10620 1513 1356 Types of queries are: POCs, o
4755 1466 1302 TATA Communications formerly
4766 1904 1284 Korea Telecom (KIX)
22773 1339 1252 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 /8:22 /9:12 /10:28 /11:80 /12:230
/13:462 /14:799 /15:1394 /16:11911 /17:5826 /18:9717
/19:19446 /20:25890 /21:25958 /22:34104 /23:32942 /24:185318
/25:13 /26:17 /27:25 /28:160 /29:105 /30:55
/31:0 /32:129

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

ASN No of nets Total ann. Description
6389 2231 3628 BellSouth.net Inc.
18566 1869 1912 Covad Communications Co.
6478 1682 1728 AT&T Services, Inc.
10620 1403 1513 Types of queries are: POCs, o
23456 1320 2654 32-bit ASN transition
11492 1087 1133 CABLE ONE, INC.
7011 1061 1161 Frontier Communications of Am
1785 1050 1796 PaeTec Communications, Inc.
7029 940 1258 Alltel Information Services,
4323 872 1960 tw telecom holdings, 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 8:338
12:1969 13:1 14:452 15:15 16:3 17:8
20:10 23:11 24:1607 27:775 31:431 32:55
33:4 34:2 37:1 38:728 40:103 41:2517
42:2 44:3 46:956 47:3 49:188 50:409
52:13 54:2 55:3 56:2 57:31 58:795
59:468 60:385 61:1014 62:1051 63:1927 64:3911
65:2246 66:4121 67:1882 68:1079 69:2998 70:701
71:372 72:1847 74:2350 75:308 76:340 77:882
78:704 79:468 80:1105 81:835 82:497 83:463
84:667 85:1080 86:580 87:760 88:331 89:1523
90:204 91:3831 92:524 93:1037 94:1311 95:837
96:440 97:251 98:873 99:36 101:62 103:56
106:6 107:11 108:82 109:962 110:601 111:705
112:291 113:394 114:538 115:680 116:935 117:671
118:784 119:1130 120:308 121:646 122:1618 123:937
124:1262 125:1212 128:209 129:169 130:158 131:574
132:102 133:19 134:206 135:48 136:212 137:140
138:301 139:109 140:458 141:238 142:388 143:409
144:487 145:54 146:441 147:212 148:585 149:246
150:164 151:187 152:327 153:180 154:2 155:399
156:192 157:324 158:137 159:373 160:315 161:200
162:306 163:154 164:499 165:351 166:530 167:423
168:726 169:153 170:833 171:77 172:1 173:1604
174:584 175:357 176:134 177:151 178:998 180:879
181:18 182:453 183:208 184:297 185:1 186:1209
187:766 188:848 189:914 190:4873 192:5801 193:4915
194:3490 195:3001 196:1230 197:20 198:3531 199:3880
200:5469 201:1475 202:8085 203:8274 204:4113 205:2318
206:2598 207:2754 208:3936 209:3444 210:2648 211:1391
212:2024 213:1712 214:738 215:69 216:4897 217:1651
218:533 219:360 220:1198 221:474 222:309 223:154

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 12 Jun, 2011

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

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

BGP routing table entries examined: 359200
Prefixes after maximum aggregation: 162698
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 178394
Total ASes present in the Internet Routing Table: 37819
Prefixes per ASN: 9.50
Origin-only ASes present in the Internet Routing Table: 31570
Origin ASes announcing only one prefix: 15164
Transit ASes present in the Internet Routing Table: 5109
Transit-only ASes present in the Internet Routing Table: 135
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 787
Unregistered ASNs in the Routing Table: 423
Number of 32-bit ASNs allocated by the RIRs: 1445
Number of 32-bit ASNs visible in the Routing Table: 1140
Prefixes from 32-bit ASNs in the Routing Table: 2631
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 161
Number of addresses announced to Internet: 2486021888
Equivalent to 148 /8s, 45 /16s and 175 /24s
Percentage of available address space announced: 67.1
Percentage of allocated address space announced: 67.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.1
Total number of prefixes smaller than registry allocations: 149923

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

Prefixes being announced by APNIC Region ASes: 89055
Total APNIC prefixes after maximum aggregation: 30093
APNIC Deaggregation factor: 2.96
Prefixes being announced from the APNIC address blocks: 85518
Unique aggregates announced from the APNIC address blocks: 36687
APNIC Region origin ASes present in the Internet Routing Table: 4472
APNIC Prefixes per ASN: 19.12
APNIC Region origin ASes announcing only one prefix: 1249
APNIC Region transit ASes present in the Internet Routing Table: 701
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: 46
Number of APNIC addresses announced to Internet: 620131104
Equivalent to 36 /8s, 246 /16s and 115 /24s
Percentage of available APNIC address space announced: 78.6

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

Prefixes being announced by ARIN Region ASes: 140861
Total ARIN prefixes after maximum aggregation: 71596
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 112797
Unique aggregates announced from the ARIN address blocks: 46090
ARIN Region origin ASes present in the Internet Routing Table: 14419
ARIN Prefixes per ASN: 7.82
ARIN Region origin ASes announcing only one prefix: 5505
ARIN Region transit ASes present in the Internet Routing Table: 1510
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 818674432
Equivalent to 48 /8s, 203 /16s and 251 /24s
Percentage of available ARIN address space announced: 65.1

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

Prefixes being announced by RIPE Region ASes: 85540
Total RIPE prefixes after maximum aggregation: 48713
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 78989
Unique aggregates announced from the RIPE address blocks: 52410
RIPE Region origin ASes present in the Internet Routing Table: 15697
RIPE Prefixes per ASN: 5.03
RIPE Region origin ASes announcing only one prefix: 7841
RIPE Region transit ASes present in the Internet Routing Table: 2474
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: 847
Number of RIPE addresses announced to Internet: 477096448
Equivalent to 28 /8s, 111 /16s and 234 /24s
Percentage of available RIPE address space announced: 76.9

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

Prefixes being announced by LACNIC Region ASes: 32957
Total LACNIC prefixes after maximum aggregation: 7491
LACNIC Deaggregation factor: 4.40
Prefixes being announced from the LACNIC address blocks: 32047
Unique aggregates announced from the LACNIC address blocks: 16951
LACNIC Region origin ASes present in the Internet Routing Table: 1451
LACNIC Prefixes per ASN: 22.09
LACNIC Region origin ASes announcing only one prefix: 430
LACNIC Region transit ASes present in the Internet Routing Table: 257
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 230
Number of LACNIC addresses announced to Internet: 84685824
Equivalent to 5 /8s, 12 /16s and 52 /24s
Percentage of available LACNIC address space announced: 56.1

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: 7930
Total AfriNIC prefixes after maximum aggregation: 1848
AfriNIC Deaggregation factor: 4.29
Prefixes being announced from the AfriNIC address blocks: 6343
Unique aggregates announced from the AfriNIC address blocks: 1874
AfriNIC Region origin ASes present in the Internet Routing Table: 456
AfriNIC Prefixes per ASN: 13.91
AfriNIC Region origin ASes announcing only one prefix: 139
AfriNIC Region transit ASes present in the Internet Routing Table: 99
Average AfriNIC Region AS path length visible: 4.7
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 24100864
Equivalent to 1 /8s, 111 /16s and 192 /24s
Percentage of available AfriNIC address space announced: 35.9

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 2462 9500 924 Korea Telecom (KIX)
17974 1554 441 38 PT TELEKOMUNIKASI INDONESIA
7545 1538 301 86 TPG Internet Pty Ltd
4755 1471 634 166 TATA Communications formerly
24560 1153 336 187 Bharti Airtel Ltd., Telemedia
7552 1146 1064 7 Vietel Corporation
9583 1081 80 509 Sify Limited
4808 1052 2098 299 CNCGROUP IP network: China169
9829 1038 876 66 BSNL National Internet Backbo
17488 946 191 102 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 3629 3822 252 bellsouth.net, inc.
4323 1961 1081 399 Time Warner Telecom
18566 1913 365 237 Covad Communications
1785 1794 681 122 PaeTec Communications, Inc.
6478 1728 319 50 AT&T Worldnet Services
20115 1538 1541 633 Charter Communications
19262 1490 4931 314 Verizon Global Networks
7018 1362 7036 890 AT&T WorldNet Services
22773 1340 2897 87 Cox Communications, Inc.
2386 1258 535 906 AT&T Data Communications Serv

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 521 106 180 BILISIM TELEKOM
6830 513 1780 320 UPC Distribution Services
3292 464 2078 399 TDC Tele Danmark
20940 462 135 354 Akamai Technologies European
29049 451 33 48 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
12479 436 593 7 Uni2 Autonomous System
3320 425 8152 370 Deutsche Telekom AG
8551 406 355 45 Bezeq International
702 396 1803 310 UUNET - Commercial IP service

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 1513 278 157 TVCABLE BOGOTA
28573 1321 992 80 NET Servicos de Comunicao S.A
8151 1268 2727 364 UniNet S.A. de C.V.
7303 990 506 170 Telecom Argentina Stet-France
6503 739 354 73 AVANTEL, S.A.
14420 677 54 80 CORPORACION NACIONAL DE TELEC
22047 564 310 15 VTR PUNTO NET S.A.
3816 531 231 94 Empresa Nacional de Telecomun
13489 517 262 122 Orbitel S.A. E.S.P.
7738 516 986 31 Telecomunicacoes da Bahia 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
8452 797 445 11 TEDATA
24863 795 147 37 LINKdotNET AS number
15475 528 74 8 Nile Online
36992 308 415 17 Etisalat MISR
3741 264 937 225 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 217 12 11 Starcomms Nigeria Limited
24835 210 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 3629 3822 252 bellsouth.net, inc.
23456 2631 645 1432 32-bit ASN transition
4766 2462 9500 924 Korea Telecom (KIX)
4323 1961 1081 399 Time Warner Telecom
18566 1913 365 237 Covad Communications
1785 1794 681 122 PaeTec Communications, Inc.
6478 1728 319 50 AT&T Worldnet Services
17974 1554 441 38 PT TELEKOMUNIKASI INDONESIA
7545 1538 301 86 TPG Internet Pty Ltd
20115 1538 1541 633 Charter Communications

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

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

ASN No of nets Net Savings Description
6478 1728 1678 AT&T Worldnet Services
18566 1913 1676 Covad Communications
1785 1794 1672 PaeTec Communications, Inc.
4323 1961 1562 Time Warner Telecom
4766 2462 1538 Korea Telecom (KIX)
17974 1554 1516 PT TELEKOMUNIKASI INDONESIA
7545 1538 1452 TPG Internet Pty Ltd
10620 1513 1356 TVCABLE BOGOTA
4755 1471 1305 TATA Communications formerly
22773 1340 1253 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 /8:22 /9:12 /10:28 /11:80 /12:230
/13:462 /14:800 /15:1394 /16:11925 /17:5844 /18:9784
/19:19364 /20:25847 /21:25996 /22:34236 /23:33170 /24:186887
/25:1087 /26:1254 /27:719 /28:42 /29:9 /30:2
/31:0 /32:6

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

ASN No of nets Total ann. Description
6389 2233 3629 bellsouth.net, inc.
18566 1870 1913 Covad Communications
6478 1682 1728 AT&T Worldnet Services
10620 1403 1513 TVCABLE BOGOTA
23456 1309 2631 32-bit ASN transition
11492 1090 1136 Cable One
7011 1061 1161 Citizens Utilities
1785 1050 1794 PaeTec Communications, Inc.
7029 909 1159 Alltel Information Services,
4323 874 1961 Time Warner Telecom

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

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

1:287 2:48 4:16 5:1 6:3 8:338
12:1976 13:1 14:461 15:15 16:3 17:8
20:10 23:11 24:1610 27:774 31:431 32:60
33:4 34:2 37:1 38:732 40:103 41:2519
42:2 44:3 46:958 47:3 49:188 50:409
52:13 54:2 55:3 56:2 57:32 58:840
59:475 60:387 61:1122 62:1052 63:1932 64:3937
65:2250 66:4138 67:1881 68:1086 69:3001 70:705
71:372 72:1847 74:2355 75:309 76:341 77:883
78:705 79:459 80:1106 81:832 82:492 83:460
84:667 85:1078 86:581 87:758 88:330 89:1527
90:204 91:3838 92:526 93:1037 94:1306 95:838
96:445 97:251 98:873 99:36 101:67 103:56
106:6 107:11 108:82 109:972 110:601 111:710
112:299 113:400 114:538 115:687 116:959 117:675
118:794 119:1139 120:307 121:669 122:1623 123:949
124:1269 125:1218 128:261 129:175 130:164 131:578
132:110 133:19 134:214 135:48 136:214 137:143
138:301 139:111 140:479 141:238 142:403 143:414
144:492 145:54 146:446 147:212 148:604 149:247
150:167 151:187 152:328 153:180 154:3 155:398
156:195 157:353 158:137 159:380 160:314 161:208
162:309 163:164 164:500 165:352 166:530 167:423
168:730 169:155 170:837 171:77 172:1 173:1606
174:584 175:371 176:134 177:144 178:1000 180:887
181:18 182:466 183:216 184:297 185:1 186:1201
187:766 188:850 189:915 190:4893 192:5827 193:4914
194:3494 195:3006 196:1213 197:20 198:3571 199:3923
200:5494 201:1477 202:8315 203:8354 204:4184 205:2342
206:2682 207:2826 208:3946 209:3470 210:2716 211:1400
212:2011 213:1711 214:739 215:68 216:4922 217:1656
218:548 219:364 220:1205 221:490 222:317 223:156

End of report
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Friday, June 10, 2011

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

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sat 11 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: 364355
Prefixes after maximum aggregation: 164163
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 178363
Total ASes present in the Internet Routing Table: 37886
Prefixes per ASN: 9.62
Origin-only ASes present in the Internet Routing Table: 31666
Origin ASes announcing only one prefix: 15133
Transit ASes present in the Internet Routing Table: 5074
Transit-only ASes present in the Internet Routing Table: 137
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 29
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 3574
Unregistered ASNs in the Routing Table: 446
Number of 32-bit ASNs allocated by the RIRs: 1446
Number of 32-bit ASNs visible in the Routing Table: 1146
Prefixes from 32-bit ASNs in the Routing Table: 2670
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 168
Number of addresses announced to Internet: 2488421584
Equivalent to 148 /8s, 82 /16s and 76 /24s
Percentage of available address space announced: 67.1
Percentage of allocated address space announced: 67.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.1
Total number of prefixes smaller than registry allocations: 151726

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

Prefixes being announced by APNIC Region ASes: 87151
Total APNIC prefixes after maximum aggregation: 28983
APNIC Deaggregation factor: 3.01
Prefixes being announced from the APNIC address blocks: 83729
Unique aggregates announced from the APNIC address blocks: 36708
APNIC Region origin ASes present in the Internet Routing Table: 4468
APNIC Prefixes per ASN: 18.74
APNIC Region origin ASes announcing only one prefix: 1268
APNIC Region transit ASes present in the Internet Routing Table: 697
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 46
Number of APNIC addresses announced to Internet: 620180930
Equivalent to 36 /8s, 247 /16s and 53 /24s
Percentage of available APNIC address space announced: 78.7

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

Prefixes being announced by ARIN Region ASes: 144045
Total ARIN prefixes after maximum aggregation: 73648
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 115650
Unique aggregates announced from the ARIN address blocks: 46010
ARIN Region origin ASes present in the Internet Routing Table: 14440
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5491
ARIN Region transit ASes present in the Internet Routing Table: 1504
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 818727704
Equivalent to 48 /8s, 204 /16s and 203 /24s
Percentage of available ARIN address space announced: 65.1

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

Prefixes being announced by RIPE Region ASes: 88697
Total RIPE prefixes after maximum aggregation: 49046
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 81367
Unique aggregates announced from the RIPE address blocks: 52164
RIPE Region origin ASes present in the Internet Routing Table: 15722
RIPE Prefixes per ASN: 5.18
RIPE Region origin ASes announcing only one prefix: 7796
RIPE Region transit ASes present in the Internet Routing Table: 2445
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 851
Number of RIPE addresses announced to Internet: 477517012
Equivalent to 28 /8s, 118 /16s and 84 /24s
Percentage of available RIPE address space announced: 76.9

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

Prefixes being announced by LACNIC Region ASes: 33069
Total LACNIC prefixes after maximum aggregation: 7563
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 32314
Unique aggregates announced from the LACNIC address blocks: 17005
LACNIC Region origin ASes present in the Internet Routing Table: 1463
LACNIC Prefixes per ASN: 22.09
LACNIC Region origin ASes announcing only one prefix: 437
LACNIC Region transit ASes present in the Internet Routing Table: 255
Average LACNIC Region AS path length visible: 4.7
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 232
Number of LACNIC addresses announced to Internet: 84828168
Equivalent to 5 /8s, 14 /16s and 96 /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: 8406
Total AfriNIC prefixes after maximum aggregation: 1948
AfriNIC Deaggregation factor: 4.32
Prefixes being announced from the AfriNIC address blocks: 6363
Unique aggregates announced from the AfriNIC address blocks: 1904
AfriNIC Region origin ASes present in the Internet Routing Table: 461
AfriNIC Prefixes per ASN: 13.80
AfriNIC Region origin ASes announcing only one prefix: 141
AfriNIC Region transit ASes present in the Internet Routing Table: 102
Average AfriNIC Region AS path length visible: 4.2
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 24155648
Equivalent to 1 /8s, 112 /16s and 150 /24s
Percentage of available AfriNIC address space announced: 36.0

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 1903 9490 619 Korea Telecom (KIX)
17974 1564 441 38 PT TELEKOMUNIKASI INDONESIA
7545 1538 301 86 TPG Internet Pty Ltd
4755 1469 374 164 Videsh Sanchar Nigam Ltd. Aut
24560 1152 336 187 Bharti Airtel Ltd.
7552 1146 1064 7 Vietel Corporation
9583 1071 79 500 Sify Limited
9829 1035 876 65 BSNL National Internet Backbo
4808 1029 2081 293 CNCGROUP IP network: China169
17488 961 191 102 Hathway IP Over Cable Interne

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 3626 3822 252 bellsouth.net, inc.
4323 1963 1113 401 Time Warner Telecom
18566 1957 372 219 Covad Communications
1785 1794 681 123 AppliedTheory Corporation
6478 1721 319 45 AT&T Worldnet Services
20115 1590 1544 633 Charter Communications
19262 1494 4936 309 Verizon Global Networks
7018 1372 7069 899 AT&T WorldNet Services
22773 1340 2897 87 Cox Communications, Inc.
2386 1267 536 911 AT&T Data Communications Serv

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 1050 798 192 KPNQwest Backbone AS
9116 539 326 30 Goldenlines main autonomous s
34984 521 106 180 Tellcom Iletisim Hizmetleri
3292 518 2078 400 TDC Tele Danmark
6830 514 1780 320 UPC Distribution Services
20940 469 137 359 Akamai Technologies European
29049 451 33 48 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
12479 436 593 7 Uni2 Autonomous System
3320 425 8152 370 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 1513 278 157 TVCABLE BOGOTA
28573 1317 992 80 Types of queries are: POCs, o
8151 1268 2708 361 Uninet S.A. de C.V.
7303 990 506 170 Telecom Argentina Stet-France
6503 740 354 74 AVANTEL, S.A.
14420 677 54 80 Types of queries are: POCs, o
22047 564 310 15 Types of queries are: POCs, o
3816 532 231 93 COLOMBIA TELECOMUNICACIONES S
13489 519 263 122 Orbitel S.A. E.S.P.
7738 516 986 31 Telecomunicacoes da Bahia S.A

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

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

ASN No of nets /20 equiv MaxAgg Description
8452 797 445 11 TEDATA
24863 795 147 37 LINKdotNET AS number
15475 527 74 8 Nile Online
36992 308 415 18 Etisalat MISR
16637 296 441 87 Johnnic e-Ventures
3741 264 937 225 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
24835 210 78 10 RAYA Telecom - Egypt
33776 200 12 11 Starcomms Nigeria Limited
29571 193 17 12 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 3626 3822 252 bellsouth.net, inc.
23456 2670 646 1441 >>UNKNOWN<<
4323 1963 1113 401 Time Warner Telecom
18566 1957 372 219 Covad Communications
4766 1903 9490 619 Korea Telecom (KIX)
1785 1794 681 123 AppliedTheory Corporation
6478 1721 319 45 AT&T Worldnet Services
20115 1590 1544 633 Charter Communications
17974 1564 441 38 PT TELEKOMUNIKASI INDONESIA
7545 1538 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
18566 1957 1738 Covad Communications
6478 1721 1676 AT&T Worldnet Services
1785 1794 1671 AppliedTheory Corporation
4323 1963 1562 Time Warner Telecom
17974 1564 1526 PT TELEKOMUNIKASI INDONESIA
7545 1538 1452 TPG Internet Pty Ltd
10620 1513 1356 TVCABLE BOGOTA
4755 1469 1305 Videsh Sanchar Nigam Ltd. Aut
4766 1903 1284 Korea Telecom (KIX)
22773 1340 1253 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 1239 Sprint
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 1239 Sprint
26973 UNALLOCATED 12.39.154.0/23 1239 Sprint
26973 UNALLOCATED 12.39.155.0/24 1239 Sprint
26973 UNALLOCATED 12.39.159.0/24 1239 Sprint
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)
-----------------------------------------------------------

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.
31.131.192.0/19 42368 Lipetskie Kabelnie Seti
41.190.32.0/23 31856 CABSAS
41.190.34.0/23 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 /12:230
/13:462 /14:806 /15:1422 /16:12064 /17:6103 /18:10097
/19:19909 /20:26672 /21:26475 /22:34646 /23:33759 /24:188784
/25:377 /26:353 /27:186 /28:186 /29:282 /30:683
/31:76 /32:640

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

ASN No of nets Total ann. Description
6389 2231 3626 bellsouth.net, inc.
18566 1908 1957 Covad Communications
6478 1675 1721 AT&T Worldnet Services
10620 1403 1513 TVCABLE BOGOTA
23456 1332 2670 >>UNKNOWN<<
11492 1092 1138 Cable One
7011 1061 1161 Citizens Utilities
1785 1050 1794 AppliedTheory Corporation
7029 942 1260 Alltel Information Services,
286 908 1050 KPNQwest Backbone AS

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

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

1:285 2:68 4:20 5:1 6:3 8:339
12:1980 13:1 14:462 15:15 16:3 17:8
20:10 23:11 24:1625 27:778 31:432 32:124
33:4 34:2 37:1 38:738 40:103 41:2517
42:2 44:3 46:964 47:3 49:187 50:405
52:13 54:2 55:4 56:2 57:39 58:844
59:477 60:387 61:1125 62:1072 63:1953 64:3966
65:2256 66:4165 67:1913 68:1264 69:3110 70:750
71:378 72:1880 73:2 74:2407 75:323 76:348
77:918 78:709 79:468 80:1116 81:839 82:510
83:469 84:675 85:1092 86:600 87:777 88:336
89:1552 90:204 91:3849 92:527 93:1060 94:1302
95:841 96:445 97:251 98:878 99:36 101:68
103:56 106:6 107:11 108:83 109:977 110:608
111:711 112:301 113:422 114:545 115:689 116:974
117:675 118:796 119:1145 120:313 121:690 122:1625
123:950 124:1274 125:1219 128:262 129:178 130:164
131:580 132:110 133:19 134:215 135:48 136:214
137:144 138:301 139:124 140:479 141:238 142:407
143:422 144:493 145:54 146:447 147:225 148:602
149:247 150:171 151:187 152:329 153:180 154:3
155:399 156:195 157:354 158:137 159:379 160:318
161:208 162:309 163:165 164:500 165:370 166:531
167:423 168:730 169:156 170:837 171:77 172:1
173:1623 174:587 175:371 176:134 177:156 178:1008
180:892 181:18 182:467 183:216 184:377 185:1
186:1203 187:757 188:868 189:913 190:4894 192:5875
193:4941 194:3554 195:3135 196:1242 197:20 198:3599
199:3934 200:5522 201:1480 202:8323 203:8365 204:4189
205:2340 206:2761 207:2831 208:3960 209:3483 210:2718
211:1404 212:2062 213:1775 214:740 215:68 216:4944
217:1647 218:549 219:367 220:1208 221:492 222:317
223:156

End of report
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