AS number 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 116
Number of IPv4 18,176
Number of IPv6 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
192.31.31.0/24 British Telecom 256
192.65.153.0/24 BT Group Computing Services 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 116 domain names hosted across 17 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
217.140.42.182 ██████████ 4
217.140.33.38 ██████████ 4
217.140.39.218 ██████████ 3
217.140.0.29 ██████████ 2
217.140.39.31 ██████████ 2
217.140.44.12 ██████████ 2

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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

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

IP Address ASN Details
217.140.12.165 AS13205 British Telecommunications PLC 1.62ms from Amsterdam, NL
78.109.5.185 AS13205 British Telecommunications PLC 2.71ms from Amsterdam, NL
217.140.6.193 AS13205 British Telecommunications PLC 1.80ms from Amsterdam, NL
78.109.11.83 AS13205 British Telecommunications PLC 1.86ms from Amsterdam, NL
78.109.10.185 AS13205 British Telecommunications PLC 1.85ms from Amsterdam, NL
217.140.5.193 AS13205 British Telecommunications PLC 1.86ms from Amsterdam, NL
78.109.0.71 AS13205 British Telecommunications PLC 2.67ms from Amsterdam, NL
78.109.7.196 AS13205 British Telecommunications PLC 1.13ms from Amsterdam, NL
31.11.56.39 AS13205 British Telecommunications PLC 1.65ms from Amsterdam, NL
31.11.57.19 AS13205 British Telecommunications PLC 1.79ms from Amsterdam, NL
217.140.4.81 AS13205 British Telecommunications PLC 1.86ms from Amsterdam, NL
217.140.2.177 AS13205 British Telecommunications PLC 1.85ms from Amsterdam, NL
217.140.1.130 AS13205 British Telecommunications PLC 2.86ms from Amsterdam, NL
217.140.14.9 AS13205 British Telecommunications PLC 1.89ms from Amsterdam, NL
78.109.9.44 AS13205 British Telecommunications PLC 1.50ms from Amsterdam, NL
217.140.13.75 AS13205 British Telecommunications PLC 1.60ms 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
99.95.206.165 AS7018 AT&T Enterprises, LLC 9.10ms from Atlanta, US
201.14.98.197 AS8167 V tal 3.11ms from Brasilia, BR
199.166.188.117 AS23229 TransCanada Pipelines Ltd. 2.40ms from Calgary, CA
103.139.158.5 AS139195 Seans Media Pvt Ltd 6.27ms from Chennai, IN
45.236.85.229 AS268227 PROTEK INFORMATICA EIRELI ME 6.14ms from Curitiba, BR
172.94.84.165 AS9009 M247 Europe SRL 0.28ms from Frankfurt am Main, DE
112.11.172.85 AS56041 China Mobile communications corporation 4.77ms from Hangzhou, CN
213.231.28.213 AS34661 BREEZE NETWORK 6.92ms from Kyiv, UA
119.113.73.245 AS4837 CHINA UNICOM China169 Backbone 9.17ms from Liaoyang, CN
90.209.26.85 AS5607 Sky UK Limited 7.18ms from London, GB
97.202.214.197 AS6167 Verizon Business 14.51ms from Los Angeles, US
5.21.237.197 AS50010 Omani Qatari Telecommunication Company SAOC 3.69ms from Muscat, OM
133.106.104.37 AS138384 Rakuten Mobile Network, Inc. 0.29ms from Osaka, JP
83.142.149.21 AS34177 CELESTE SAS 0.69ms from Paris, FR
210.205.128.197 AS9318 SK Broadband Co Ltd 1.17ms from Seoul, KR
35.189.16.245 AS396982 Google LLC 0.12ms from Sydney, AU
140.114.85.101 AS18047 National Tsing-Hua University 2.52ms from Taipei, TW
125.213.203.69 AS17411 Io Global Services Pvt. Limited 16.32ms from Tashkent, UZ
111.238.57.69 AS2516 KDDI CORPORATION 0.98ms from Tokyo, JP
96.53.66.165 AS6327 Shaw Communications Inc. 0.89ms from Vancouver, CA
59.172.215.229 AS4134 CHINANET-BACKBONE 0.96ms from Wuhan, CN
3.131.141.245 AS16509 Amazon.com, Inc. 0.98ms from Columbus, US
87.201.10.117 AS15802 Emirates Integrated Telecommunications Company PJSC 3.37ms from Dubai, AE
178.142.10.85 AS9145 EWE TEL GmbH 3.87ms from Hamburg, DE
79.77.65.229 AS13285 TalkTalk Communications Limited 3.00ms from London, GB

Traceroute

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

$
traceroute -a -n -q1 -f7 -m10 78.109.2.29
traceroute to 78.109.2.29 (78.109.2.29): 10 hops max, 52 byte packets
7 [AS4134] 218.84.246.57 1.679 ms
8 *
9 *
10 *
Measurement taken from IPinfo ProbeNet in UEruemqi, CN
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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