BGP Routing: 2011-08-14

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, August 20, 2011

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

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sun 21 Aug, 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: 372129
Prefixes after maximum aggregation: 167758
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 182686
Total ASes present in the Internet Routing Table: 38569
Prefixes per ASN: 9.65
Origin-only ASes present in the Internet Routing Table: 31983
Origin ASes announcing only one prefix: 15382
Transit ASes present in the Internet Routing Table: 5250
Transit-only ASes present in the Internet Routing Table: 149
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 4240
Unregistered ASNs in the Routing Table: 645
Number of 32-bit ASNs allocated by the RIRs: 1665
Number of 32-bit ASNs visible in the Routing Table: 1336
Prefixes from 32-bit ASNs in the Routing Table: 3096
Special use prefixes present in the Routing Table: 79
Prefixes being announced from unallocated address space: 112
Number of addresses announced to Internet: 2470136335
Equivalent to 147 /8s, 59 /16s and 74 /24s
Percentage of available address space announced: 66.6
Percentage of allocated address space announced: 66.6
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.2
Total number of prefixes smaller than registry allocations: 154466

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

Prefixes being announced by APNIC Region ASes: 90279
Total APNIC prefixes after maximum aggregation: 29334
APNIC Deaggregation factor: 3.08
Prefixes being announced from the APNIC address blocks: 86891
Unique aggregates announced from the APNIC address blocks: 37736
APNIC Region origin ASes present in the Internet Routing Table: 4525
APNIC Prefixes per ASN: 19.20
APNIC Region origin ASes announcing only one prefix: 1259
APNIC Region transit ASes present in the Internet Routing Table: 718
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 73
Number of APNIC addresses announced to Internet: 624533248
Equivalent to 37 /8s, 57 /16s and 159 /24s
Percentage of available APNIC address space announced: 79.2

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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: 145757
Total ARIN prefixes after maximum aggregation: 75346
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 117336
Unique aggregates announced from the ARIN address blocks: 47080
ARIN Region origin ASes present in the Internet Routing Table: 14617
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5614
ARIN Region transit ASes present in the Internet Routing Table: 1525
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 803861016
Equivalent to 47 /8s, 233 /16s and 242 /24s
Percentage of available ARIN address space announced: 63.9

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: 89752
Total RIPE prefixes after maximum aggregation: 49890
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 82147
Unique aggregates announced from the RIPE address blocks: 53496
RIPE Region origin ASes present in the Internet Routing Table: 15912
RIPE Prefixes per ASN: 5.16
RIPE Region origin ASes announcing only one prefix: 7916
RIPE Region transit ASes present in the Internet Routing Table: 2531
Average RIPE Region AS path length visible: 4.1
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 959
Number of RIPE addresses announced to Internet: 488368332
Equivalent to 29 /8s, 27 /16s and 232 /24s
Percentage of available RIPE address space announced: 78.7

RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
40960-45055, 47104-52223, 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: 34643
Total LACNIC prefixes after maximum aggregation: 7692
LACNIC Deaggregation factor: 4.50
Prefixes being announced from the LACNIC address blocks: 33816
Unique aggregates announced from the LACNIC address blocks: 17347
LACNIC Region origin ASes present in the Internet Routing Table: 1501
LACNIC Prefixes per ASN: 22.53
LACNIC Region origin ASes announcing only one prefix: 445
LACNIC Region transit ASes present in the Internet Routing Table: 277
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 20
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 288
Number of LACNIC addresses announced to Internet: 87659272
Equivalent to 5 /8s, 57 /16s and 147 /24s
Percentage of available LACNIC address space announced: 58.1

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: 8396
Total AfriNIC prefixes after maximum aggregation: 2076
AfriNIC Deaggregation factor: 4.04
Prefixes being announced from the AfriNIC address blocks: 6482
Unique aggregates announced from the AfriNIC address blocks: 2087
AfriNIC Region origin ASes present in the Internet Routing Table: 481
AfriNIC Prefixes per ASN: 13.48
AfriNIC Region origin ASes announcing only one prefix: 148
AfriNIC Region transit ASes present in the Internet Routing Table: 107
Average AfriNIC Region AS path length visible: 4.3
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: 26842112
Equivalent to 1 /8s, 153 /16s and 148 /24s
Percentage of available AfriNIC address space announced: 40.0

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 1935 11054 645 Korea Telecom (KIX)
17974 1815 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1575 301 83 TPG Internet Pty Ltd
4755 1529 374 165 Videsh Sanchar Nigam Ltd. Aut
7552 1412 1064 7 Vietel Corporation
24560 1198 336 189 Bharti Airtel Ltd.
9829 1153 989 28 BSNL National Internet Backbo
9583 1076 79 496 Sify Limited
17488 1019 188 139 Hathway IP Over Cable Interne
4808 1012 2056 288 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 3584 3817 228 bellsouth.net, inc.
18566 1912 364 240 Covad Communications
1785 1820 681 124 AppliedTheory Corporation
4323 1616 1101 400 Time Warner Telecom
7029 1613 1029 208 Windstream Communications Inc
20115 1586 1537 630 Charter Communications
22773 1436 2903 97 Cox Communications, Inc.
19262 1405 4778 395 Verizon Global Networks
7018 1361 7084 891 AT&T WorldNet Services
2386 1231 516 891 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 1039 798 193 KPNQwest Backbone AS
34984 541 107 183 Tellcom Iletisim Hizmetleri
9116 540 326 31 Goldenlines main autonomous s
3292 520 2080 404 TDC Tele Danmark
6830 513 1788 317 UPC Distribution Services
20940 480 137 372 Akamai Technologies European
8866 458 133 26 Bulgarian Telecommunication C
12479 456 593 7 Uni2 Autonomous System
3320 424 8151 370 Deutsche Telekom AG
29049 423 31 57 AzerSat LLC.

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 1591 294 163 TVCABLE BOGOTA
8151 1433 2751 354 Uninet S.A. de C.V.
28573 1259 996 67 Types of queries are: POCs, o
7303 1064 578 176 Telecom Argentina Stet-France
6503 750 450 77 AVANTEL, S.A.
14420 705 56 85 Types of queries are: POCs, o
22047 578 322 17 Types of queries are: POCs, o
10481 548 430 20 Prima S.A.
3816 534 232 97 COLOMBIA TELECOMUNICACIONES S
27947 528 53 54 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 809 145 58 LINKdotNET AS number
8452 642 445 11 TEDATA
15475 512 74 8 Nile Online
36992 302 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 244 519 14 Itissalat Al-MAGHRIB
33776 226 13 8 Starcomms Nigeria Limited
15706 219 32 6 Sudatel Internet Exchange Aut
12258 195 28 62 YEBO-AS
24835 179 78 10 RAYA Telecom - Egypt

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 3584 3817 228 bellsouth.net, inc.
23456 3096 735 1667 >>UNKNOWN<<
4766 1935 11054 645 Korea Telecom (KIX)
18566 1912 364 240 Covad Communications
1785 1820 681 124 AppliedTheory Corporation
17974 1815 516 31 PT TELEKOMUNIKASI INDONESIA
4323 1616 1101 400 Time Warner Telecom
7029 1613 1029 208 Windstream Communications Inc
10620 1591 294 163 TVCABLE BOGOTA
20115 1586 1537 630 Charter Communications

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 1815 1784 PT TELEKOMUNIKASI INDONESIA
1785 1820 1696 AppliedTheory Corporation
18566 1912 1672 Covad Communications
7545 1575 1492 TPG Internet Pty Ltd
23456 3096 1429 >>UNKNOWN<<
10620 1591 1428 TVCABLE BOGOTA
7029 1613 1405 Windstream Communications Inc
7552 1412 1405 Vietel Corporation
4755 1529 1364 Videsh Sanchar Nigam Ltd. Aut
22773 1436 1339 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
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless

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

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:20 /9:12 /10:27 /11:81 /12:233
/13:460 /14:803 /15:1446 /16:12050 /17:6171 /18:10242
/19:20071 /20:27717 /21:27081 /22:35921 /23:34782 /24:193203
/25:77 /26:85 /27:113 /28:291 /29:123 /30:537
/31:92 /32:491

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

ASN No of nets Total ann. Description
6389 2215 3584 bellsouth.net, inc.
18566 1868 1912 Covad Communications
23456 1527 3096 >>UNKNOWN<<
10620 1486 1591 TVCABLE BOGOTA
7029 1298 1613 Windstream Communications Inc
11492 1102 1148 Cable One
7011 1057 1160 Citizens Utilities
1785 1052 1820 AppliedTheory Corporation
22773 932 1436 Cox Communications, Inc.
30036 911 935 Mediacom Communications Corp

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

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

1:360 2:47 4:19 5:1 6:3 8:344
12:1958 13:1 14:519 15:15 16:3 17:5
20:10 23:27 24:1688 27:880 31:520 32:149
33:4 34:2 36:4 38:737 40:107 41:2515
42:45 44:3 46:1063 47:3 49:219 50:410
52:13 54:2 55:9 56:2 57:45 58:865
59:500 60:376 61:1181 62:1097 63:1952 64:4050
65:2301 66:3970 67:1949 68:1287 69:3205 70:825
71:372 72:1877 73:1 74:2486 75:341 76:347
77:865 78:711 79:488 80:1130 81:834 82:509
83:482 84:695 85:1084 86:514 87:846 88:341
89:1555 90:224 91:4051 92:527 93:1142 94:1350
95:873 96:423 97:267 98:938 99:37 101:78
103:212 106:69 107:32 108:81 109:1016 110:640
111:732 112:306 113:415 114:560 115:697 116:1014
117:682 118:876 119:1194 120:315 121:706 122:1617
123:984 124:1317 125:1320 128:246 129:179 130:171
131:581 132:117 133:21 134:214 135:53 136:216
137:137 138:295 139:129 140:488 141:277 142:386
143:447 144:485 145:58 146:462 147:228 148:692
149:252 150:201 151:190 152:441 153:185 154:5
155:401 156:200 157:331 158:134 159:458 160:319
161:207 162:328 163:164 164:516 165:396 166:535
167:435 168:747 169:154 170:845 171:81 172:1
173:1670 174:624 175:394 176:154 177:221 178:999
180:944 181:26 182:534 183:242 184:338 185:1
186:1371 187:742 188:935 189:929 190:5127 192:5951
193:5001 194:3554 195:3119 196:1240 197:127 198:3598
199:4061 200:5521 201:1490 202:8412 203:8485 204:4253
205:2358 206:2734 207:2820 208:4129 209:3503 210:2706
211:1465 212:2133 213:1781 214:782 215:70 216:4922
217:1617 218:554 219:355 220:1224 221:516 222:358
223:242

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 21 Aug, 2011

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

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

BGP routing table entries examined: 362499
Prefixes after maximum aggregation: 164703
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 182607
Total ASes present in the Internet Routing Table: 37067
Prefixes per ASN: 9.78
Origin-only ASes present in the Internet Routing Table: 31973
Origin ASes announcing only one prefix: 15388
Transit ASes present in the Internet Routing Table: 5094
Transit-only ASes present in the Internet Routing Table: 135
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 2470
Unregistered ASNs in the Routing Table: 714
Number of 32-bit ASNs allocated by the RIRs: 1665
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3091
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 110
Number of addresses announced to Internet: 2486594560
Equivalent to 148 /8s, 54 /16s and 108 /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: 91.2
Total number of prefixes smaller than registry allocations: 149855

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

Prefixes being announced by APNIC Region ASes: 87724
Total APNIC prefixes after maximum aggregation: 29134
APNIC Deaggregation factor: 3.01
Prefixes being announced from the APNIC address blocks: 85146
Unique aggregates announced from the APNIC address blocks: 37858
APNIC Region origin ASes present in the Internet Routing Table: 4488
APNIC Prefixes per ASN: 18.97
APNIC Region origin ASes announcing only one prefix: 1261
APNIC Region transit ASes present in the Internet Routing Table: 682
Average APNIC Region AS path length visible: 3.9
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: 623975936
Equivalent to 37 /8s, 49 /16s and 30 /24s
Percentage of available APNIC address space announced: 79.1

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

Prefixes being announced by ARIN Region ASes: 141155
Total ARIN prefixes after maximum aggregation: 72821
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113335
Unique aggregates announced from the ARIN address blocks: 47118
ARIN Region origin ASes present in the Internet Routing Table: 14531
ARIN Prefixes per ASN: 7.80
ARIN Region origin ASes announcing only one prefix: 5611
ARIN Region transit ASes present in the Internet Routing Table: 1466
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 803804416
Equivalent to 47 /8s, 233 /16s and 21 /24s
Percentage of available ARIN address space announced: 63.9

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

Prefixes being announced by RIPE Region ASes: 87998
Total RIPE prefixes after maximum aggregation: 49704
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 81191
Unique aggregates announced from the RIPE address blocks: 53461
RIPE Region origin ASes present in the Internet Routing Table: 15894
RIPE Prefixes per ASN: 5.11
RIPE Region origin ASes announcing only one prefix: 7923
RIPE Region transit ASes present in the Internet Routing Table: 2500
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 31
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 487774464
Equivalent to 29 /8s, 18 /16s and 217 /24s
Percentage of available RIPE address space announced: 78.6

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

Prefixes being announced by LACNIC Region ASes: 33518
Total LACNIC prefixes after maximum aggregation: 7554
LACNIC Deaggregation factor: 4.44
Prefixes being announced from the LACNIC address blocks: 32933
Unique aggregates announced from the LACNIC address blocks: 17319
LACNIC Region origin ASes present in the Internet Routing Table: 1490
LACNIC Prefixes per ASN: 22.10
LACNIC Region origin ASes announcing only one prefix: 444
LACNIC Region transit ASes present in the Internet Routing Table: 264
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: 87597568
Equivalent to 5 /8s, 56 /16s and 162 /24s
Percentage of available LACNIC address space announced: 58.0

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: 2074
AfriNIC Deaggregation factor: 4.01
Prefixes being announced from the AfriNIC address blocks: 6412
Unique aggregates announced from the AfriNIC address blocks: 2079
AfriNIC Region origin ASes present in the Internet Routing Table: 481
AfriNIC Prefixes per ASN: 13.33
AfriNIC Region origin ASes announcing only one prefix: 149
AfriNIC Region transit ASes present in the Internet Routing Table: 106
Average AfriNIC Region AS path length visible: 3.4
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: 26871808
Equivalent to 1 /8s, 154 /16s and 8 /24s
Percentage of available AfriNIC address space announced: 40.0

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 1934 11038 644 Korea Telecom (KIX)
7545 1575 301 83 TPG Internet Pty Ltd
17974 1573 516 31 PT Telekomunikasi Indonesia
4755 1525 374 165 TATA Communications formerly
24560 1198 336 189 Bharti Airtel Ltd., Telemedia
9829 1153 989 28 National Internet Backbone
9583 1076 79 496 Sify Limited
17488 1002 188 139 Hathway IP Over Cable Interne
7552 1001 1062 11 Vietel Corporation
4808 951 2004 272 CNCGROUP IP network China169

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 3585 3817 228 BellSouth.net Inc.
18566 1910 364 238 Covad Communications Co.
1785 1822 681 123 PaeTec Communications, Inc.
4323 1616 1101 401 tw telecom holdings, inc.
7029 1611 1029 208 Windstream Communications Inc
20115 1585 1537 630 Charter Communications
22773 1436 2903 97 Cox Communications Inc.
19262 1405 4778 395 Verizon Online LLC
7018 1360 7084 890 AT&T Services, Inc.
2386 1230 516 890 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
34984 541 107 183 BILISIM TELEKOM
9116 540 326 31 Goldenlines main autonomous s
6830 511 1788 317 UPC Broadband
20940 474 136 368 Akamai Technologies European
3292 469 2080 404 TDC Data Networks
8866 457 133 26 Bulgarian Telecommunication C
12479 455 593 7 France Telecom Espana SA
3320 423 8150 369 Deutsche Telekom AG
29049 423 31 57 AzerSat LLC.
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 1591 294 163 Types of queries are: POCs, o
8151 1260 2751 352 Uninet S.A. de C.V.
28573 1251 996 66 Types of queries are: POCs, o
7303 1046 578 163 Telecom Argentina S.A.
6503 730 450 76 Axtel, S.A.B. de C.V.
14420 705 56 85 CORPORACION NACIONAL DE TELEC
22047 578 322 17 Types of queries are: POCs, o
3816 534 232 97 Types of queries are: POCs, o
7738 515 986 31 Telecomunicacoes da Bahia S.A
27947 508 54 49 Telconet S.A

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

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

ASN No of nets /20 equiv MaxAgg Description
24863 807 145 56 LINKdotNET AS number
8452 640 445 11 TEDATA
15475 512 74 8 Nile Online
36992 302 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 244 519 14 Itissalat Al-MAGHRIB
33776 226 13 8 Starcomms Nigeria Limited
15706 219 32 6 Sudatel Internet Exchange Aut
12258 195 28 62 Vodacom Internet Company
24835 179 78 10 RAYA Telecom - Egypt

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 3585 3817 228 BellSouth.net Inc.
23456 3091 735 1665 32-bit ASN transition
4766 1934 11038 644 Korea Telecom (KIX)
18566 1910 364 238 Covad Communications Co.
1785 1822 681 123 PaeTec Communications, Inc.
4323 1616 1101 401 tw telecom holdings, inc.
7029 1611 1029 208 Windstream Communications Inc
10620 1591 294 163 Types of queries are: POCs, o
20115 1585 1537 630 Charter Communications
7545 1575 301 83 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
1785 1822 1699 PaeTec Communications, Inc.
18566 1910 1672 Covad Communications Co.
17974 1573 1542 PT Telekomunikasi Indonesia
7545 1575 1492 TPG Internet Pty Ltd
10620 1591 1428 Types of queries are: POCs, o
23456 3091 1426 32-bit ASN transition
7029 1611 1403 Windstream Communications Inc
4755 1525 1360 TATA Communications formerly
22773 1436 1339 Cox Communications Inc.
4766 1934 1290 Korea Telecom (KIX)

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
--------------------------------

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 /8:20 /9:12 /10:27 /11:81 /12:234
/13:460 /14:796 /15:1415 /16:11903 /17:5907 /18:9932
/19:19625 /20:26522 /21:26522 /22:35227 /23:33891 /24:189418
/25:11 /26:20 /27:22 /28:157 /29:110 /30:58
/31:0 /32:129

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

ASN No of nets Total ann. Description
6389 2216 3585 BellSouth.net Inc.
18566 1867 1910 Covad Communications Co.
23456 1522 3091 32-bit ASN transition
10620 1486 1591 Types of queries are: POCs, o
7029 1295 1611 Windstream Communications Inc
11492 1102 1148 CABLE ONE, INC.
7011 1057 1160 Frontier Communications of Am
1785 1052 1822 PaeTec Communications, Inc.
22773 931 1436 Cox Communications Inc.
30036 910 934 Mediacom Communications Corp

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

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

1:359 2:46 4:15 5:1 6:3 8:343
12:1953 13:1 14:507 15:15 16:3 17:5
20:10 23:27 24:1679 27:874 31:518 32:59
33:4 34:2 36:4 38:728 40:107 41:2461
42:45 44:3 46:1058 47:3 49:219 50:410
52:13 54:2 55:8 56:2 57:34 58:813
59:494 60:374 61:1014 62:1085 63:1926 64:3963
65:2297 66:3919 67:1916 68:1104 69:3085 70:776
71:372 72:1843 74:2433 75:328 76:338 77:863
78:709 79:487 80:1125 81:831 82:497 83:479
84:687 85:1079 86:497 87:842 88:337 89:1537
90:224 91:4046 92:526 93:1133 94:1346 95:873
96:413 97:267 98:924 99:37 101:73 103:212
106:69 107:32 108:74 109:1008 110:630 111:729
112:299 113:410 114:557 115:678 116:977 117:658
118:835 119:1181 120:314 121:662 122:1608 123:974
124:1280 125:1271 128:207 129:169 130:165 131:577
132:109 133:21 134:205 135:53 136:214 137:134
138:295 139:114 140:466 141:277 142:365 143:442
144:484 145:58 146:457 147:217 148:624 149:250
150:195 151:190 152:439 153:185 154:4 155:401
156:197 157:299 158:134 159:391 160:319 161:198
162:325 163:154 164:516 165:362 166:532 167:433
168:742 169:151 170:842 171:81 172:1 173:1651
174:622 175:381 176:154 177:221 178:996 180:930
181:26 182:518 183:242 184:337 185:1 186:1368
187:737 188:935 189:927 190:5123 192:5881 193:4988
194:3509 195:3039 196:1235 197:127 198:3534 199:4003
200:5444 201:1483 202:8187 203:8387 204:4176 205:2317
206:2584 207:2739 208:3995 209:3387 210:2613 211:1451
212:2100 213:1763 214:781 215:70 216:4839 217:1611
218:541 219:349 220:1186 221:499 222:308 223:238

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 21 Aug, 2011

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

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

BGP routing table entries examined: 368099
Prefixes after maximum aggregation: 166637
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 182546
Total ASes present in the Internet Routing Table: 38545
Prefixes per ASN: 9.55
Origin-only ASes present in the Internet Routing Table: 31990
Origin ASes announcing only one prefix: 15373
Transit ASes present in the Internet Routing Table: 5223
Transit-only ASes present in the Internet Routing Table: 142
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 1111
Unregistered ASNs in the Routing Table: 633
Number of 32-bit ASNs allocated by the RIRs: 1665
Number of 32-bit ASNs visible in the Routing Table: 1332
Prefixes from 32-bit ASNs in the Routing Table: 3091
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 111
Number of addresses announced to Internet: 2469400256
Equivalent to 147 /8s, 48 /16s and 14 /24s
Percentage of available address space announced: 66.6
Percentage of allocated address space announced: 66.6
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.2
Total number of prefixes smaller than registry allocations: 153575

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

Prefixes being announced by APNIC Region ASes: 92429
Total APNIC prefixes after maximum aggregation: 30474
APNIC Deaggregation factor: 3.03
Prefixes being announced from the APNIC address blocks: 88949
Unique aggregates announced from the APNIC address blocks: 37727
APNIC Region origin ASes present in the Internet Routing Table: 4542
APNIC Prefixes per ASN: 19.58
APNIC Region origin ASes announcing only one prefix: 1248
APNIC Region transit ASes present in the Internet Routing Table: 717
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: 73
Number of APNIC addresses announced to Internet: 624525856
Equivalent to 37 /8s, 57 /16s and 130 /24s
Percentage of available APNIC address space announced: 79.2

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

Prefixes being announced by ARIN Region ASes: 142434
Total ARIN prefixes after maximum aggregation: 73338
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 114313
Unique aggregates announced from the ARIN address blocks: 47136
ARIN Region origin ASes present in the Internet Routing Table: 14597
ARIN Prefixes per ASN: 7.83
ARIN Region origin ASes announcing only one prefix: 5616
ARIN Region transit ASes present in the Internet Routing Table: 1548
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 803830784
Equivalent to 47 /8s, 233 /16s and 124 /24s
Percentage of available ARIN address space announced: 63.9

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

Prefixes being announced by RIPE Region ASes: 87564
Total RIPE prefixes after maximum aggregation: 49739
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 80769
Unique aggregates announced from the RIPE address blocks: 53457
RIPE Region origin ASes present in the Internet Routing Table: 15903
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7921
RIPE Region transit ASes present in the Internet Routing Table: 2503
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: 954
Number of RIPE addresses announced to Internet: 487797760
Equivalent to 29 /8s, 19 /16s and 52 /24s
Percentage of available RIPE address space announced: 78.6

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

Prefixes being announced by LACNIC Region ASes: 34079
Total LACNIC prefixes after maximum aggregation: 7648
LACNIC Deaggregation factor: 4.46
Prefixes being announced from the LACNIC address blocks: 33339
Unique aggregates announced from the LACNIC address blocks: 17323
LACNIC Region origin ASes present in the Internet Routing Table: 1500
LACNIC Prefixes per ASN: 22.23
LACNIC Region origin ASes announcing only one prefix: 439
LACNIC Region transit ASes present in the Internet Routing Table: 277
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 289
Number of LACNIC addresses announced to Internet: 87648768
Equivalent to 5 /8s, 57 /16s and 106 /24s
Percentage of available LACNIC address space announced: 58.0

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: 8330
Total AfriNIC prefixes after maximum aggregation: 2034
AfriNIC Deaggregation factor: 4.10
Prefixes being announced from the AfriNIC address blocks: 6427
Unique aggregates announced from the AfriNIC address blocks: 2086
AfriNIC Region origin ASes present in the Internet Routing Table: 481
AfriNIC Prefixes per ASN: 13.36
AfriNIC Region origin ASes announcing only one prefix: 149
AfriNIC Region transit ASes present in the Internet Routing Table: 106
Average AfriNIC Region AS path length visible: 5.7
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: 26825728
Equivalent to 1 /8s, 153 /16s and 84 /24s
Percentage of available AfriNIC address space announced: 40.0

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 2497 11046 949 Korea Telecom (KIX)
17974 1815 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1577 301 84 TPG Internet Pty Ltd
4755 1534 635 169 TATA Communications formerly
7552 1412 1064 7 Vietel Corporation
24560 1198 336 189 Bharti Airtel Ltd., Telemedia
9829 1153 989 28 BSNL National Internet Backbo
9583 1076 79 496 Sify Limited
4808 1067 2098 306 CNCGROUP IP network: China169
17488 1004 188 139 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 3585 3817 227 bellsouth.net, inc.
18566 1912 364 240 Covad Communications
1785 1819 680 123 PaeTec Communications, Inc.
4323 1616 1085 400 Time Warner Telecom
20115 1586 1537 630 Charter Communications
7029 1576 991 229 Windstream Communications Inc
22773 1437 2903 97 Cox Communications, Inc.
19262 1405 4778 395 Verizon Global Networks
7018 1351 7050 882 AT&T WorldNet Services
2386 1230 516 891 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 541 107 183 BILISIM TELEKOM
6830 512 1788 317 UPC Distribution Services
20940 475 135 368 Akamai Technologies European
3292 469 2080 404 TDC Tele Danmark
8866 458 133 26 Bulgarian Telecommunication C
12479 456 593 7 Uni2 Autonomous System
3320 425 8151 371 Deutsche Telekom AG
29049 424 31 55 AzerSat LLC.
8551 404 354 44 Bezeq International
3301 398 1855 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 1591 294 163 TVCABLE BOGOTA
8151 1390 2769 354 UniNet S.A. de C.V.
28573 1268 996 67 NET Servicos de Comunicao S.A
7303 1064 578 176 Telecom Argentina Stet-France
6503 742 450 75 AVANTEL, S.A.
14420 705 56 85 CORPORACION NACIONAL DE TELEC
22047 578 322 17 VTR PUNTO NET S.A.
3816 532 232 96 Empresa Nacional de Telecomun
27947 518 53 54 Telconet S.A
7738 515 986 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
24863 810 145 59 LINKdotNET AS number
8452 642 445 11 TEDATA
15475 512 74 8 Nile Online
36992 302 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 244 519 14 Itissalat Al-MAGHRIB
33776 226 13 8 Starcomms Nigeria Limited
15706 219 32 6 Sudatel Internet Exchange Aut
12258 194 28 61 Vodacom Internet Company
24835 179 78 10 RAYA Telecom - Egypt

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 3585 3817 227 bellsouth.net, inc.
23456 3091 735 1659 32-bit ASN transition
4766 2497 11046 949 Korea Telecom (KIX)
18566 1912 364 240 Covad Communications
1785 1819 680 123 PaeTec Communications, Inc.
17974 1815 516 31 PT TELEKOMUNIKASI INDONESIA
4323 1616 1085 400 Time Warner Telecom
10620 1591 294 163 TVCABLE BOGOTA
20115 1586 1537 630 Charter Communications
7545 1577 301 84 TPG Internet Pty Ltd

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 1815 1784 PT TELEKOMUNIKASI INDONESIA
1785 1819 1696 PaeTec Communications, Inc.
18566 1912 1672 Covad Communications
4766 2497 1548 Korea Telecom (KIX)
7545 1577 1493 TPG Internet Pty Ltd
23456 3091 1432 32-bit ASN transition
10620 1591 1428 TVCABLE BOGOTA
7552 1412 1405 Vietel Corporation
4755 1534 1365 TATA Communications formerly
7029 1576 1347 Windstream 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 /8:19 /9:12 /10:27 /11:81 /12:233
/13:460 /14:797 /15:1418 /16:11934 /17:5922 /18:9960
/19:19541 /20:26603 /21:26619 /22:35576 /23:34252 /24:191346
/25:1099 /26:1302 /27:737 /28:152 /29:4 /30:0
/31:0 /32:5

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

ASN No of nets Total ann. Description
6389 2217 3585 bellsouth.net, inc.
18566 1868 1912 Covad Communications
23456 1519 3091 32-bit ASN transition
10620 1486 1591 TVCABLE BOGOTA
7029 1277 1576 Windstream Communications Inc
11492 1102 1148 Cable One
7011 1057 1160 Citizens Utilities
1785 1052 1819 PaeTec Communications, Inc.
22773 933 1437 Cox Communications, Inc.
30036 911 935 Mediacom Communications Corp

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

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

1:360 2:46 4:15 5:1 6:3 8:343
12:1955 13:1 14:517 15:15 16:3 17:5
20:10 23:27 24:1683 27:880 31:518 32:64
33:4 34:2 36:4 38:734 40:107 41:2462
42:45 44:3 46:1060 47:3 49:219 50:410
52:13 54:2 55:9 56:2 57:35 58:864
59:499 60:376 61:1178 62:1084 63:1927 64:3994
65:2299 66:3928 67:1917 68:1111 69:3096 70:779
71:372 72:1845 74:2436 75:329 76:339 77:863
78:709 79:479 80:1131 81:831 82:492 83:475
84:686 85:1075 86:498 87:840 88:335 89:1533
90:224 91:4042 92:525 93:1132 94:1345 95:870
96:419 97:267 98:924 99:37 101:78 103:213
106:69 107:32 108:74 109:1011 110:631 111:731
112:306 113:412 114:557 115:695 116:999 117:682
118:875 119:1195 120:315 121:689 122:1616 123:984
124:1317 125:1319 128:243 129:176 130:171 131:580
132:117 133:21 134:213 135:53 136:216 137:137
138:295 139:116 140:488 141:277 142:383 143:449
144:489 145:58 146:462 147:217 148:640 149:252
150:202 151:190 152:441 153:185 154:5 155:401
156:200 157:328 158:134 159:458 160:320 161:207
162:328 163:164 164:516 165:366 166:532 167:433
168:748 169:153 170:845 171:81 172:1 173:1652
174:615 175:394 176:153 177:221 178:1000 180:936
181:26 182:529 183:242 184:339 185:1 186:1370
187:741 188:923 189:928 190:5142 192:5919 193:4986
194:3511 195:3038 196:1230 197:126 198:3587 199:4046
200:5516 201:1488 202:8402 203:8470 204:4245 205:2338
206:2671 207:2805 208:4002 209:3416 210:2706 211:1461
212:2084 213:1767 214:784 215:70 216:4863 217:1609
218:552 219:354 220:1222 221:515 222:354 223:241

End of report
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Friday, August 19, 2011

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

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sat 20 Aug, 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: 371985
Prefixes after maximum aggregation: 167727
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 182587
Total ASes present in the Internet Routing Table: 38550
Prefixes per ASN: 9.65
Origin-only ASes present in the Internet Routing Table: 31979
Origin ASes announcing only one prefix: 15381
Transit ASes present in the Internet Routing Table: 5241
Transit-only ASes present in the Internet Routing Table: 146
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 4223
Unregistered ASNs in the Routing Table: 640
Number of 32-bit ASNs allocated by the RIRs: 1659
Number of 32-bit ASNs visible in the Routing Table: 1330
Prefixes from 32-bit ASNs in the Routing Table: 3086
Special use prefixes present in the Routing Table: 79
Prefixes being announced from unallocated address space: 113
Number of addresses announced to Internet: 2469992207
Equivalent to 147 /8s, 57 /16s and 23 /24s
Percentage of available address space announced: 66.6
Percentage of allocated address space announced: 66.6
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.2
Total number of prefixes smaller than registry allocations: 154471

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

Prefixes being announced by APNIC Region ASes: 90251
Total APNIC prefixes after maximum aggregation: 29344
APNIC Deaggregation factor: 3.08
Prefixes being announced from the APNIC address blocks: 86866
Unique aggregates announced from the APNIC address blocks: 37711
APNIC Region origin ASes present in the Internet Routing Table: 4521
APNIC Prefixes per ASN: 19.21
APNIC Region origin ASes announcing only one prefix: 1256
APNIC Region transit ASes present in the Internet Routing Table: 719
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 73
Number of APNIC addresses announced to Internet: 624250624
Equivalent to 37 /8s, 53 /16s and 79 /24s
Percentage of available APNIC address space announced: 79.2

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

Prefixes being announced by ARIN Region ASes: 145783
Total ARIN prefixes after maximum aggregation: 75358
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 117332
Unique aggregates announced from the ARIN address blocks: 47096
ARIN Region origin ASes present in the Internet Routing Table: 14613
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5614
ARIN Region transit ASes present in the Internet Routing Table: 1519
Average ARIN Region AS path length visible: 3.5
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 803815192
Equivalent to 47 /8s, 233 /16s and 63 /24s
Percentage of available ARIN address space announced: 63.9

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

Prefixes being announced by RIPE Region ASes: 89718
Total RIPE prefixes after maximum aggregation: 49884
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 82117
Unique aggregates announced from the RIPE address blocks: 53500
RIPE Region origin ASes present in the Internet Routing Table: 15910
RIPE Prefixes per ASN: 5.16
RIPE Region origin ASes announcing only one prefix: 7914
RIPE Region transit ASes present in the Internet Routing Table: 2535
Average RIPE Region AS path length visible: 4.1
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 956
Number of RIPE addresses announced to Internet: 488305612
Equivalent to 29 /8s, 26 /16s and 243 /24s
Percentage of available RIPE address space announced: 78.7

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

Prefixes being announced by LACNIC Region ASes: 34541
Total LACNIC prefixes after maximum aggregation: 7661
LACNIC Deaggregation factor: 4.51
Prefixes being announced from the LACNIC address blocks: 33704
Unique aggregates announced from the LACNIC address blocks: 17247
LACNIC Region origin ASes present in the Internet Routing Table: 1498
LACNIC Prefixes per ASN: 22.50
LACNIC Region origin ASes announcing only one prefix: 446
LACNIC Region transit ASes present in the Internet Routing Table: 274
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 20
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 285
Number of LACNIC addresses announced to Internet: 87683848
Equivalent to 5 /8s, 57 /16s and 243 /24s
Percentage of available LACNIC address space announced: 58.1

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: 8401
Total AfriNIC prefixes after maximum aggregation: 2081
AfriNIC Deaggregation factor: 4.04
Prefixes being announced from the AfriNIC address blocks: 6489
Unique aggregates announced from the AfriNIC address blocks: 2086
AfriNIC Region origin ASes present in the Internet Routing Table: 483
AfriNIC Prefixes per ASN: 13.43
AfriNIC Region origin ASes announcing only one prefix: 151
AfriNIC Region transit ASes present in the Internet Routing Table: 106
Average AfriNIC Region AS path length visible: 4.3
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: 26909440
Equivalent to 1 /8s, 154 /16s and 155 /24s
Percentage of available AfriNIC address space announced: 40.1

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 1936 11054 646 Korea Telecom (KIX)
17974 1822 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1574 301 82 TPG Internet Pty Ltd
4755 1529 374 165 Videsh Sanchar Nigam Ltd. Aut
7552 1412 1064 7 Vietel Corporation
24560 1199 337 187 Bharti Airtel Ltd.
9829 1153 989 28 BSNL National Internet Backbo
9583 1076 79 496 Sify Limited
17488 1016 188 141 Hathway IP Over Cable Interne
4808 1011 2056 288 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 3584 3817 228 bellsouth.net, inc.
18566 1912 364 240 Covad Communications
1785 1820 681 124 AppliedTheory Corporation
4323 1617 1101 400 Time Warner Telecom
7029 1613 1029 208 Windstream Communications Inc
20115 1586 1537 630 Charter Communications
22773 1436 2903 97 Cox Communications, Inc.
19262 1405 4778 395 Verizon Global Networks
7018 1361 7084 891 AT&T WorldNet Services
2386 1232 516 893 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 1039 798 193 KPNQwest Backbone AS
34984 541 107 183 Tellcom Iletisim Hizmetleri
9116 540 326 31 Goldenlines main autonomous s
3292 520 2080 404 TDC Tele Danmark
6830 513 1788 317 UPC Distribution Services
20940 480 137 372 Akamai Technologies European
8866 458 133 26 Bulgarian Telecommunication C
12479 458 593 7 Uni2 Autonomous System
3320 424 8151 370 Deutsche Telekom AG
29049 423 31 57 AzerSat LLC.

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 1591 294 163 TVCABLE BOGOTA
8151 1442 2751 354 Uninet S.A. de C.V.
28573 1258 996 67 Types of queries are: POCs, o
7303 1063 578 175 Telecom Argentina Stet-France
6503 751 450 77 AVANTEL, S.A.
14420 705 56 85 Types of queries are: POCs, o
22047 578 322 17 Types of queries are: POCs, o
10481 548 430 20 Prima S.A.
3816 533 232 97 COLOMBIA TELECOMUNICACIONES S
27947 531 54 49 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 807 145 58 LINKdotNET AS number
8452 639 445 11 TEDATA
15475 512 74 8 Nile Online
36992 302 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 244 519 14 Itissalat Al-MAGHRIB
33776 226 13 8 Starcomms Nigeria Limited
15706 219 32 6 Sudatel Internet Exchange Aut
12258 195 28 62 YEBO-AS
24835 179 78 10 RAYA Telecom - Egypt

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 3584 3817 228 bellsouth.net, inc.
23456 3086 734 1656 >>UNKNOWN<<
4766 1936 11054 646 Korea Telecom (KIX)
18566 1912 364 240 Covad Communications
17974 1822 516 31 PT TELEKOMUNIKASI INDONESIA
1785 1820 681 124 AppliedTheory Corporation
4323 1617 1101 400 Time Warner Telecom
7029 1613 1029 208 Windstream Communications Inc
10620 1591 294 163 TVCABLE BOGOTA
20115 1586 1537 630 Charter Communications

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 1822 1791 PT TELEKOMUNIKASI INDONESIA
1785 1820 1696 AppliedTheory Corporation
18566 1912 1672 Covad Communications
7545 1574 1492 TPG Internet Pty Ltd
23456 3086 1430 >>UNKNOWN<<
10620 1591 1428 TVCABLE BOGOTA
7029 1613 1405 Windstream Communications Inc
7552 1412 1405 Vietel Corporation
4755 1529 1364 Videsh Sanchar Nigam Ltd. Aut
22773 1436 1339 Cox Communications, Inc.

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

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

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

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

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

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

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

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:20 /9:12 /10:27 /11:81 /12:233
/13:460 /14:802 /15:1446 /16:12052 /17:6173 /18:10243
/19:20061 /20:27706 /21:27065 /22:35915 /23:34787 /24:193086
/25:77 /26:86 /27:113 /28:295 /29:124 /30:538
/31:92 /32:491

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

ASN No of nets Total ann. Description
6389 2215 3584 bellsouth.net, inc.
18566 1868 1912 Covad Communications
23456 1517 3086 >>UNKNOWN<<
10620 1486 1591 TVCABLE BOGOTA
7029 1298 1613 Windstream Communications Inc
11492 1102 1148 Cable One
7011 1057 1160 Citizens Utilities
1785 1052 1820 AppliedTheory Corporation
22773 932 1436 Cox Communications, Inc.
30036 911 935 Mediacom Communications Corp

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

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

1:358 2:47 4:19 5:1 6:3 8:344
12:1957 13:1 14:507 15:15 16:3 17:5
20:10 23:27 24:1688 27:875 31:519 32:149
33:4 34:2 36:4 38:735 40:107 41:2521
42:45 44:3 46:1062 47:3 49:219 50:409
52:13 54:2 55:9 56:2 57:45 58:866
59:500 60:376 61:1182 62:1097 63:1953 64:4053
65:2302 66:3972 67:1950 68:1288 69:3195 70:825
71:372 72:1877 73:1 74:2487 75:341 76:347
77:863 78:711 79:489 80:1133 81:834 82:509
83:482 84:694 85:1084 86:515 87:845 88:341
89:1558 90:224 91:4047 92:527 93:1141 94:1342
95:875 96:423 97:267 98:938 99:37 101:78
103:212 106:69 107:32 108:81 109:1016 110:642
111:732 112:304 113:414 114:561 115:698 116:1012
117:683 118:877 119:1212 120:314 121:706 122:1614
123:984 124:1315 125:1320 128:247 129:179 130:171
131:581 132:116 133:21 134:214 135:51 136:216
137:137 138:297 139:129 140:489 141:277 142:385
143:445 144:485 145:58 146:463 147:227 148:697
149:252 150:201 151:190 152:441 153:185 154:5
155:401 156:200 157:331 158:134 159:458 160:319
161:208 162:328 163:163 164:516 165:397 166:534
167:435 168:744 169:154 170:843 171:81 172:1
173:1669 174:623 175:393 176:154 177:229 178:1001
180:944 181:26 182:533 183:242 184:364 185:1
186:1367 187:723 188:934 189:929 190:5119 192:5952
193:4996 194:3550 195:3124 196:1240 197:127 198:3595
199:4059 200:5441 201:1489 202:8407 203:8488 204:4251
205:2362 206:2736 207:2822 208:4124 209:3506 210:2706
211:1465 212:2131 213:1781 214:768 215:70 216:4923
217:1616 218:555 219:355 220:1223 221:516 222:358
223:241

End of report
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