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 ISP
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
217.140.39.31 ██████████ 2
217.140.0.29 ██████████ 2
217.140.44.12 ██████████ 2
217.140.39.218 ██████████ 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

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

IP Address ASN Details
31.11.56.84 AS13205 British Telecommunications PLC 1.66ms from Amsterdam, NL
217.140.4.81 AS13205 British Telecommunications PLC 1.89ms from Amsterdam, NL
78.109.9.50 AS13205 British Telecommunications PLC 1.52ms from Amsterdam, NL
78.109.0.1 AS13205 British Telecommunications PLC 3.00ms from Amsterdam, NL
217.140.5.193 AS13205 British Telecommunications PLC 1.82ms from Amsterdam, NL
78.109.7.196 AS13205 British Telecommunications PLC 1.07ms from Amsterdam, NL
217.140.14.9 AS13205 British Telecommunications PLC 1.93ms from Amsterdam, NL
217.140.13.37 AS13205 British Telecommunications PLC 2.06ms from Amsterdam, NL
217.140.12.146 AS13205 British Telecommunications PLC 1.63ms from Amsterdam, NL
217.140.6.195 AS13205 British Telecommunications PLC 1.85ms from Amsterdam, NL
78.109.10.185 AS13205 British Telecommunications PLC 1.89ms from Amsterdam, NL
31.11.57.17 AS13205 British Telecommunications PLC 1.84ms from Amsterdam, NL
217.140.1.130 AS13205 British Telecommunications PLC 2.98ms from Amsterdam, NL
78.109.5.129 AS13205 British Telecommunications PLC 2.81ms from Amsterdam, NL
78.109.11.81 AS13205 British Telecommunications PLC 1.82ms 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
145.11.62.117 AS33915 Vodafone Libertel B.V. 3.76ms from Amsterdam, NL
46.29.237.53 AS43581 ZTV CORP LLC 0.77ms from Amsterdam, NL
100.20.3.117 AS16509 Amazon.com, Inc. 0.15ms from Boardman, US
186.80.149.5 AS10620 Telmex Colombia S.A. 7.70ms from Bogota, CO
41.35.170.69 AS8452 TE-AS 8.22ms from Cairo, EG
108.222.97.53 AS7018 AT&T Enterprises, LLC 1.63ms from Dallas, US
182.212.180.181 AS17858 LG POWERCOMM 2.12ms from Incheon, KR
3.11.197.229 AS16509 Amazon.com, Inc. 0.18ms from London, GB
90.240.98.37 AS5378 Vodafone Limited 4.35ms from London, GB
139.162.208.101 AS63949 Akamai Connected Cloud 0.15ms from London, GB
62.33.168.117 AS20485 Joint Stock Company TransTeleCom 19.09ms from Moscow, RU
193.106.53.133 AS50237 The College of Management, Academic Studies, Founded by the Union Officials in Tel Aviv, Corporation for Public-Benefit Ltd. 3.49ms from Petaẖ Tiqva, IL
192.91.249.213 AS17298 ROEHL TRANSPORT, INC. 1.73ms from Port Edwards, US
71.237.151.181 AS7922 Comcast Cable Communications, LLC 5.04ms from Portland, US
23.195.225.117 AS16625 Akamai Technologies, Inc. 0.27ms from Seattle, US
27.141.186.181 AS9824 JCOM Co., Ltd. 4.96ms from Tokyo, JP
5.183.172.5 AS47692 Nessus GmbH 0.72ms from Vienna, AT
125.42.229.69 AS4837 CHINA UNICOM China169 Backbone 6.19ms from Zhengzhou, CN
77.162.237.69 AS1136 KPN B.V. 1.36ms from Amsterdam, NL
139.171.209.21 AS7029 Windstream Communications LLC 0.94ms from Ashburn, US
120.92.31.37 AS59019 Beijing Kingsoft Cloud Internet Technology Co., Ltd 3.22ms from Beijing, CN
66.172.57.165 AS4213 Krypt Technologies 0.38ms from Boston, US
62.235.136.37 AS5432 Proximus NV 3.62ms from Brussels, BE
34.66.165.245 AS396982 Google LLC 0.13ms from Council Bluffs, US
14.245.22.229 AS45899 VNPT Corp 4.63ms from Da Nang, VN

Traceroute

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

$
traceroute -a -n -q1 -m8 217.140.0.57
traceroute to 217.140.0.57 (217.140.0.57): 8 hops max, 52 byte packets
3 *
4 [] 80.249.208.108 0.806 ms
6 *
7 *
8 *
Measurement taken from IPinfo ProbeNet in Amsterdam, NL
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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