Autonomous System details

AS13205

British Telecommunications PLC  ·  bt.com

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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
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


                                                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.

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
217.140.33.38 ██████████ 4
217.140.42.182 ██████████ 4
217.140.44.12 ██████████ 2
217.140.0.29 ██████████ 2
217.140.39.31 ██████████ 2
217.140.39.218 ██████████ 1

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Useful for Cybersecurity

Peers

There are 2 peers for this ASN.

Peers Name
AS2856 British Telecommunications PLC
AS5400 British Telecommunications PLC
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.

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
217.140.4.81 AS13205 British Telecommunications PLC 1.87ms from Amsterdam, NL
78.109.10.185 AS13205 British Telecommunications PLC 1.85ms from Amsterdam, NL
217.140.12.33 AS13205 British Telecommunications PLC 1.62ms from Amsterdam, NL
217.140.6.193 AS13205 British Telecommunications PLC 1.91ms from Amsterdam, NL
217.140.1.131 AS13205 British Telecommunications PLC 3.01ms from Amsterdam, NL
78.109.9.50 AS13205 British Telecommunications PLC 1.53ms from Amsterdam, NL
78.109.0.1 AS13205 British Telecommunications PLC 2.90ms from Amsterdam, NL
217.140.14.11 AS13205 British Telecommunications PLC 1.84ms from Amsterdam, NL
78.109.7.196 AS13205 British Telecommunications PLC 1.04ms from Amsterdam, NL
78.109.5.129 AS13205 British Telecommunications PLC 2.89ms from Amsterdam, NL
217.140.13.37 AS13205 British Telecommunications PLC 2.08ms from Amsterdam, NL
78.109.11.81 AS13205 British Telecommunications PLC 1.90ms from Amsterdam, NL
31.11.56.84 AS13205 British Telecommunications PLC 1.68ms from Amsterdam, NL
217.140.5.193 AS13205 British Telecommunications PLC 1.84ms from Amsterdam, NL
31.11.57.132 AS13205 British Telecommunications PLC 1.78ms 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
178.253.227.37 AS211484 YSZ TRADING CO., LIMITED 0.46ms from Amsterdam, NL
52.25.193.165 AS16509 Amazon.com, Inc. 0.23ms from Boardman, US
73.69.95.133 AS7922 Comcast Cable Communications, LLC 14.52ms from Boston, US
69.14.147.165 AS12083 WideOpenWest Finance LLC 9.29ms from Chicago, US
69.139.217.245 AS7922 Comcast Cable Communications, LLC 0.84ms from Chicago, US
45.189.47.149 AS269577 INFOVIRTUAL SOLUCOES EM INFORMATICA LTDA ME 12.06ms from Fortaleza, BR
83.115.68.229 AS3215 Orange S.A. 7.63ms from Frankfurt am Main, DE
124.51.140.245 AS17858 LG POWERCOMM 5.76ms from Incheon, KR
110.13.68.69 AS9318 SK Broadband Co Ltd 1.25ms from Incheon, KR
45.148.192.5 AS212891 EVONET SRL 17.23ms from Milan, IT
75.114.159.197 AS33363 Charter Communications, Inc 14.45ms from Mount Prospect, US
73.104.237.21 AS7922 Comcast Cable Communications, LLC 4.54ms from Orlando, US
31.36.39.229 AS5410 Bouygues Telecom SA 8.64ms from Paris, FR
67.128.121.149 AS17385 Orbitel Communications, LLC 6.72ms from Phoenix, US
95.155.37.133 AS8585 Crnogorski Telekom a.d.Podgorica 0.67ms from Podgorica, ME
124.53.58.165 AS17858 LG POWERCOMM 1.49ms from Seoul, KR
49.52.6.213 AS4538 China Education and Research Network Center 4.03ms from Shanghai, CN
120.74.29.197 AS2527 Sony Network Communications Inc. 2.94ms from Tokyo, JP
210.172.22.21 AS9600 So-net Corporation 3.56ms from Tokyo, JP
85.214.20.21 AS6724 Strato GmbH 0.48ms from Berlin, DE
77.241.91.101 AS34762 Combell NV 0.27ms from Brussels, BE
84.194.12.5 AS6848 Telenet BV 8.12ms from Brussels, BE
31.5.163.101 AS12302 Vodafone Romania S.A. 10.57ms from Bucharest, RO
3.133.215.229 AS16509 Amazon.com, Inc. 0.23ms from Columbus, US
14.98.76.197 AS45820 Tata Teleservices ISP AS 0.71ms from Delhi, IN

Traceroute

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

$
traceroute -a -n -q1 78.109.10.185
traceroute to 78.109.10.185 (78.109.10.185): 64 hops max, 52 byte packets
3 *
4 [] 80.249.208.108 0.664 ms
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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