Autonomous System details

AS13205

British Telecommunications PLC  ·  bt.com

United Kingdom

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AS13205 – British Telecommunications PLC

Field Value
Country United Kingdom
Website bt.com
Hosted domains 113
IPv4 addresses 17,664
IPv6 addresses 0
ASN type Business
Registry ripe
Allocated 56 years ago on Jan 01, 1970
Updated 8 years ago on Nov 15, 2017

IP Ranges

Netblock Company Num of IPs
217.140.32.0/19 British Telecommunications PLC 8,192
78.109.0.0/20 British Telecommunications PLC 4,096
217.140.0.0/20 BT DCS Amsterdam International Data Centre 4,096
217.140.12.0/22 BT Global Services DCS Hempoint Data Centre 1,024
31.11.56.0/23 BT DCS Niewegein Data Centre 512
137.213.252.0/23 Sopra Steria Limited 512
78.109.0.0/24 BT DCS Hempoint Data Centre 256
78.109.5.0/24 BT DCS Amsterdam International Data Centre 256
78.109.6.0/24 BT Global Services DCS Hempoint Data Centre 256
78.109.7.0/24 BT DCS BT DCS Hempoint Data Centre 256
78.109.9.0/24 BT Dual Site Internet 256
78.109.10.0/24 BT DCS Amsterdam International Data Centre 256
78.109.11.0/24 BT DCS Amsterdam International Data Centre 256
137.213.239.0/24 Sopra Steria Limited 256
217.140.12.0/24 BT Global Services DCS Hempoint Data Centre 256
217.140.13.0/24 BT Global Services DCS Colo for teleconcept.nl 256

There are no known IPv6 addresses belonging to this network

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WHOIS Details

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                                                ASHandle:       AS13205
                                                OrgID:          AS13205
                                                ASName:         AS13205
                                                ASNumber:       AS13205
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are 113 domain names hosted across 16 IP addresses on this ASN.

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IP Address Domain Domains on this IP
217.140.4.135 ██████████ 56
217.140.32.156 ██████████ 21
217.140.46.98 ██████████ 8
217.140.43.163 ██████████ 7
217.140.42.182 ██████████ 4
217.140.33.38 ██████████ 4
217.140.0.29 ██████████ 2
217.140.39.31 ██████████ 2
217.140.44.12 ██████████ 2
217.140.32.51 ██████████ 1

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Peers

There are 2 peers for this ASN.

Peers Name
AS2856 British Telecommunications PLC
AS5400 British Telecommunications PLC
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Upstreams

There are 2 upstreams for this ASN.

upstreams Name
AS2856 British Telecommunications PLC
AS5400 British Telecommunications PLC
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Downstreams

There are no downstreams for this ASN.

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Pingable IPs

16 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
217.140.2.179 AS13205 British Telecommunications PLC 1.90ms from Amsterdam, NL
78.109.11.81 AS13205 British Telecommunications PLC 1.90ms from Amsterdam, NL
217.140.14.9 AS13205 British Telecommunications PLC 1.88ms from Amsterdam, NL
217.140.12.165 AS13205 British Telecommunications PLC 1.59ms from Amsterdam, NL
217.140.5.193 AS13205 British Telecommunications PLC 1.84ms from Amsterdam, NL
78.109.5.129 AS13205 British Telecommunications PLC 2.85ms from Amsterdam, NL
31.11.57.133 AS13205 British Telecommunications PLC 1.86ms from Amsterdam, NL
78.109.10.185 AS13205 British Telecommunications PLC 1.82ms from Amsterdam, NL
217.140.1.129 AS13205 British Telecommunications PLC 2.96ms from Amsterdam, NL
217.140.13.67 AS13205 British Telecommunications PLC 1.62ms from Amsterdam, NL
78.109.0.129 AS13205 British Telecommunications PLC 2.91ms from Amsterdam, NL
217.140.6.193 AS13205 British Telecommunications PLC 1.82ms from Amsterdam, NL
78.109.9.50 AS13205 British Telecommunications PLC 1.52ms from Amsterdam, NL
31.11.56.84 AS13205 British Telecommunications PLC 1.64ms from Amsterdam, NL
78.109.7.196 AS13205 British Telecommunications PLC 1.10ms from Amsterdam, NL
217.140.4.85 AS13205 British Telecommunications PLC 1.88ms from Amsterdam, NL

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address ASN Details
47.81.22.5 AS45102 Alibaba (US) Technology Co., Ltd. 0.11ms from Bangkok, TH
52.40.25.133 AS16509 Amazon.com, Inc. 0.14ms from Boardman, US
83.115.68.229 AS3215 Orange S.A. 7.62ms from Frankfurt am Main, DE
72.178.110.85 AS11427 Charter Communications Inc 9.53ms from Houston, US
211.254.173.197 AS3786 LG DACOM Corporation 1.42ms from Incheon, KR
221.141.226.37 AS9318 SK Broadband Co Ltd 7.14ms from Incheon, KR
94.175.141.5 AS5089 Virgin Media Limited 7.71ms from Maidenhead, GB
82.225.62.21 AS12322 Free SAS 3.20ms from Paris, FR
52.21.202.5 AS14618 Amazon.com, Inc. 0.18ms from Reston, US
96.33.186.165 AS20115 Charter Communications LLC 17.54ms from Richardson, US
211.220.49.165 AS4766 Korea Telecom 6.51ms from Seoul, KR
113.147.210.245 AS2516 KDDI CORPORATION 2.28ms from Tokyo, JP
180.39.111.5 AS4713 NTT DOCOMO BUSINESS,Inc. 3.02ms from Tokyo, JP
217.228.59.21 AS3320 Deutsche Telekom AG 1.22ms from Berlin, DE
97.171.64.213 AS6167 Verizon Business 7.34ms from Denver, US
93.209.58.245 AS3320 Deutsche Telekom AG 5.09ms from Frankfurt am Main, DE
88.114.66.197 AS719 Elisa Oyj 2.60ms from Helsinki, FI
182.212.180.181 AS17858 LG POWERCOMM 2.50ms from Incheon, KR
94.153.148.5 AS15895 Kyivstar PJSC 0.76ms from Kyiv, UA
157.167.100.181 AS44444 Forcepoint UK Limited 0.84ms from London, GB
173.235.15.37 AS11272 C Spire Fiber 3.95ms from New Orleans, US
65.112.16.37 AS209 CenturyLink Communications, LLC 5.75ms from New York City, US
75.99.54.117 AS6128 Cablevision Systems Corp. 2.91ms from New York City, US
123.206.137.149 AS45090 Shenzhen Tencent Computer Systems Company Limited 1.60ms from Shanghai, CN
138.217.140.245 AS1221 Telstra Limited 0.70ms from Sydney, AU

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.

$
traceroute -a -n -q1 -f2 -m6 217.140.3.48
traceroute to 217.140.3.48 (217.140.3.48): 6 hops max, 52 byte packets
2 [AS53340] 192.228.109.93 498.432 ms
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Las Vegas, US
On

Related Networks

What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS13205 at robtex.

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