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
217.140.0.29 ██████████ 2
217.140.44.12 ██████████ 2
217.140.39.31 ██████████ 2
217.140.32.121 ██████████ 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
31.11.56.84 AS13205 British Telecommunications PLC 1.64ms from Amsterdam, NL
78.109.11.83 AS13205 British Telecommunications PLC 1.93ms from Amsterdam, NL
78.109.9.50 AS13205 British Telecommunications PLC 1.53ms from Amsterdam, NL
217.140.14.9 AS13205 British Telecommunications PLC 1.91ms from Amsterdam, NL
217.140.2.177 AS13205 British Telecommunications PLC 1.89ms from Amsterdam, NL
78.109.0.1 AS13205 British Telecommunications PLC 2.92ms from Amsterdam, NL
78.109.5.3 AS13205 British Telecommunications PLC 2.84ms from Amsterdam, NL
217.140.4.81 AS13205 British Telecommunications PLC 1.79ms from Amsterdam, NL
217.140.12.160 AS13205 British Telecommunications PLC 1.60ms from Amsterdam, NL
78.109.10.185 AS13205 British Telecommunications PLC 1.82ms from Amsterdam, NL
217.140.1.130 AS13205 British Telecommunications PLC 2.98ms from Amsterdam, NL
217.140.5.193 AS13205 British Telecommunications PLC 1.87ms from Amsterdam, NL
31.11.57.130 AS13205 British Telecommunications PLC 1.82ms from Amsterdam, NL
217.140.13.78 AS13205 British Telecommunications PLC 1.59ms from Amsterdam, NL
78.109.7.196 AS13205 British Telecommunications PLC 1.06ms from Amsterdam, NL
217.140.6.193 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
73.54.224.149 AS7922 Comcast Cable Communications, LLC 3.85ms from Atlanta, US
23.70.37.245 AS7922 Comcast Cable Communications, LLC 1.09ms from Atlanta, US
94.110.218.133 AS47377 Orange Belgium SA 9.01ms from Brussels, BE
97.242.52.229 AS6167 Verizon Business 9.10ms from Chicago, US
97.225.29.229 AS6167 Verizon Business 19.17ms from Dallas, US
129.24.76.21 AS3388 University of New Mexico 11.21ms from Denver, US
115.193.175.117 AS4134 CHINANET-BACKBONE 4.75ms from Hangzhou, CN
20.247.44.229 AS8075 Microsoft Corporation 0.30ms from Hong Kong, HK
86.162.61.181 AS2856 British Telecommunications PLC 2.01ms from London, GB
172.70.213.5 AS13335 Cloudflare, Inc. 0.60ms from Los Angeles, US
176.130.91.213 AS5410 Bouygues Telecom SA 2.54ms from Lyon, FR
83.44.41.197 AS3352 TELEFONICA DE ESPANA S.A.U. 9.01ms from Madrid, ES
34.152.103.21 AS396982 Google LLC 0.10ms from Madrid, ES
217.25.152.21 AS8905 Digit One LLC 1.20ms from Moscow, RU
86.38.243.53 AS47583 Hostinger International Limited 0.23ms from Mumbai, IN
69.74.22.5 AS54004 Optimum WiFi 2.85ms from New York City, US
34.166.151.229 AS396982 Google LLC 6.52ms from Riyadh, SA
95.215.68.37 AS48909 CityLine LLC 9.62ms from Samara, RU
13.84.212.101 AS8075 Microsoft Corporation 0.21ms from San Antonio, US
89.178.178.5 AS8402 PJSC "Vimpelcom" 5.17ms from Yekaterinburg, RU
69.178.116.197 AS8047 GENERAL COMMUNICATION, INC. 7.70ms from Anchorage, US
208.93.107.37 AS26054 Thryv 0.79ms from Ashburn, US
172.232.108.53 AS63949 Akamai Connected Cloud 0.73ms from Chennai, IN
72.110.135.133 AS6167 Verizon Business 15.31ms from Chicago, US
14.233.87.21 AS45899 VNPT Corp 0.96ms 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 -f5 78.109.7.195
traceroute to 78.109.7.195 (78.109.7.195): 64 hops max, 52 byte packets
5 [AS174] 154.54.61.82 1.708 ms
6 [AS174] 130.117.15.170 0.711 ms
8 *
9 [AS13205] 78.109.7.195 1.461 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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