51.14.0.0/16

AS2856 · British Telecommunications PLC

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Summary

Country	United Kingdom
Domain	bt.com
ASN	AS2856
Registry	RIPE
ID	BT-CENTRAL-PLUS

WHOIS Details

inetnum:        51.14.0.0 - 51.14.255.255
netname:        BT-CENTRAL-PLUS
descr:          BT-CENTRAL-PLUS
org:            ORG-BPIS1-RIPE
country:        GB
admin-c:        FLS15-RIPE
tech-c:         BS1474-RIPE
status:         LEGACY
mnt-by:         RIPE-NCC-LEGACY-MNT
mnt-by:         BTNET-INFRA-MNT
created:        2016-02-22T15:23:51Z
last-modified:  2025-05-12T17:34:43Z
source:         RIPE
abuse-email:    [email protected]
abuse-c:        AR13878-RIPE
abuse-org:      ORG-BPIS1-RIPE

organisation:   ORG-BPIS1-RIPE
org-name:       British Telecommunications PLC
country:        GB
org-type:       LIR
address:        PP1, Floor1, Orion, Adastral Park, Martlesham Heath
address:        IP5 3RE
address:        Ipswich
address:        UNITED KINGDOM
phone:          +44 (0)20 7356 5000
abuse-c:        AR13878-RIPE
mnt-ref:        BTNET-MNT
mnt-ref:        BTNET-INFRA-MNT
mnt-ref:        RIPE-NCC-HM-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         BTNET-INFRA-MNT
admin-c:        FLS15-RIPE
admin-c:        MS35380-RIPE
admin-c:        GF1231-RIPE
created:        2004-04-17T12:11:50Z
last-modified:  2025-03-24T17:20:04Z
source:         RIPE
e-mail:         [email protected]
abuse-email:    [email protected]
abuse-c:        AR13878-RIPE
abuse-org:      undefined

role:           BTnet Support
address:        Adhara
address:        Adastral Park
address:        Martlesham Heath
address:        Ipswich
address:        SUFFLK IP5 3RE
address:        GB
phone:          +44 800 0858963 5
phone:          +44 1473 336231
e-mail:         [email protected]
e-mail:         [email protected]
admin-c:        FLS15-RIPE
tech-c:         FLS15-RIPE
nic-hdl:        BS1474-RIPE
remarks:        For all queries contact [email protected]
remarks:        Please send delisting issues to [email protected]
mnt-by:         BTNET-MNT
created:        2002-04-30T07:54:10Z
last-modified:  2025-07-18T13:07:21Z
source:         RIPE

role:           BT IP Address Admin
address:        PP 1, Floor 1
address:        Orion Building
address:        Adastral Park
address:        Martlesham Heath
address:        Ipswich
address:        IP5 3RE
address:        UK
e-mail:         [email protected]
e-mail:         [email protected]
remarks:        
remarks:        
nic-hdl:        FLS15-RIPE
mnt-by:         BTNET-INFRA-MNT
created:        2002-08-29T06:26:48Z
last-modified:  2023-06-21T11:23:36Z
source:         RIPE

route:          51.14.0.0/16
descr:          BT Public Internet Service
origin:         AS2856
mnt-by:         BTNET-INFRA-MNT
notify:         [email protected]
created:        2016-07-18T07:36:52Z
last-modified:  2016-07-18T07:36:52Z
source:         RIPE

Nearby Ranges

BGP prefixes that overlap with 51.0.0.0/8

Range	ASN	Company	Num of IPs
51.6.0.0/15	AS6871		131,072
51.172.0.0/15	AS16509	A100 ROW Inc	131,072
51.94.0.0/15	AS16509	A100 ROW Inc	131,072
51.158.0.0/15	AS12876	Scaleway	131,072
51.220.0.0/15	AS16509	A100 ROW Inc	131,072
51.244.0.0/15	AS16509	A100 ROW Inc	131,072
51.236.0.0/15	AS16509	A100 ROW Inc	131,072
51.48.0.0/15	AS16509	A100 ROW Inc	131,072
51.190.0.0/15	AS5607	SKY UK Limited	131,072
51.212.0.0/15	AS16509	A100 ROW Inc	131,072
51.184.0.0/15	AS16509	A100 ROW Inc	131,072
51.174.0.0/15	AS29695	Altibox AS	131,072
51.208.0.0/15	AS16509	A100 ROW Inc	131,072
51.168.0.0/15	AS16509	A100 ROW Inc	131,072
51.224.0.0/15	AS16509	Amazon Data Services European Sovereign Cloud GmbH	131,072
51.232.0.0/15	AS16509	A100 ROW Inc	131,072
51.248.0.0/15	AS16509	A100 ROW Inc	131,072
51.34.0.0/15	AS16509	A100 Row Inc	131,072
51.252.0.0/15	AS25019	Saudi Telecom Company JSC	131,072
51.186.0.0/15	AS5607	SKY UK Limited	131,072
51.216.0.0/15	AS16509	A100 ROW Inc	131,072
51.4.0.0/15	AS8075	Microsoft Deutschland MCIO GmbH	131,072
51.180.0.0/15	AS16509	A100 ROW Inc	131,072
51.214.0.0/15	AS16509	A100 Row Inc	131,072
51.196.0.0/15	AS16509	A100 ROW Inc	131,072
51.182.0.0/15	AS5607	SKY UK Limited	131,072
51.156.0.0/15	AS16509	A100 Row Inc	131,072
51.122.0.0/15	AS16509	A100 Row Inc	131,072
51.188.0.0/15	AS16509	A100 ROW Inc	131,072
51.254.0.0/15	AS16276	OVH SAS	131,072
51.176.0.0/15	AS16509	A100 ROW Inc	131,072
51.192.0.0/15	AS16509	A100 ROW Inc	131,072
51.16.0.0/15	AS16509	A100 Row Inc	131,072
51.228.0.0/15	AS16509	A100 ROW Inc	131,072
51.139.0.0/16	AS16509	A100 ROW Inc	65,536
51.150.0.0/16	AS16509	A100 Row Inc	65,536
51.20.0.0/16	AS16509	A100 ROW Inc	65,536
51.148.0.0/16	AS13037	Zen Internet Limited	65,536
51.125.0.0/16	AS16509	A100 ROW Inc	65,536
51.131.0.0/16	AS16509	A100 ROW Inc	65,536
51.134.0.0/16	AS16509	A100 ROW Inc	65,536
51.110.0.0/16	AS16509	A100 Row Inc	65,536
51.108.0.0/16	AS16509	A100 Row Inc	65,536
51.160.0.0/16	AS16509	A100 ROW Inc	65,536
51.21.0.0/16	AS16509	A100 ROW Inc	65,536
51.91.0.0/16	AS16276	OVH SAS	65,536
51.89.0.0/16	AS16276	OVH SAS	65,536
51.83.0.0/16	AS16276	OVH SAS	65,536
51.112.0.0/16	AS16509	A100 ROW Inc	65,536
51.77.0.0/16	AS16276	OVH SAS	65,536

Hosted domains

There are 54 domain names hosted across 42 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
51.14.149.27	floe.xyz	5
51.14.166.136	utopiamultimedia.com	4
51.14.27.196	jotpot.uk	4
51.14.2.247	tonyhunt.uk	2
51.14.53.35	4561234.xyz	2
51.14.116.125	hamshere.net	1
51.14.109.226	langton.cc	1
51.14.3.227	marcos-restoration.com	1
51.14.35.106	kalzooestateagents.com	1
51.14.94.122	at-home.net	1
51.14.117.135	maukit.com	1
51.14.6.67	happaway.com	1
51.14.193.199	peejaytech.com	1
51.14.24.50	grathus.live	1
51.14.67.35	i-am-root.co.uk	1
51.14.116.78	dupretzel.net	1
51.14.126.65	solarjones.uk	1
51.14.115.209	qdsl.co.uk	1
51.14.63.70	askera.net	1
51.14.224.91	vfxtalentmanagement.com	1

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

Read more

Pingable IPs

52,984 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
51.14.152.219	AS2856 British Telecommunications PLC	`3.88ms` from Erith, GB
51.14.131.152	AS2856 British Telecommunications PLC	`1.75ms` from Erith, GB
51.14.165.242	AS2856 British Telecommunications PLC	`2.11ms` from London, GB
51.14.94.208	AS2856 British Telecommunications PLC	`1.69ms` from London, GB
51.14.90.250	AS2856 British Telecommunications PLC	`1.43ms` from London, GB
51.14.172.254	AS2856 British Telecommunications PLC	`1.92ms` from London, GB
51.14.182.45	AS2856 British Telecommunications PLC	`4.12ms` from London, GB
51.14.246.194	AS2856 British Telecommunications PLC	`4.38ms` from London, GB
51.14.92.224	AS2856 British Telecommunications PLC	`8.56ms` from London, GB
51.14.142.29	AS2856 British Telecommunications PLC	`7.89ms` from Erith, GB
51.14.100.251	AS2856 British Telecommunications PLC	`6.70ms` from Erith, GB
51.14.93.220	AS2856 British Telecommunications PLC	`3.51ms` from London, GB
51.14.137.232	AS2856 British Telecommunications PLC	`8.07ms` from London, GB
51.14.85.188	AS2856 British Telecommunications PLC	`2.63ms` from London, GB
51.14.242.46	AS2856 British Telecommunications PLC	`1.56ms` from London, GB
51.14.216.130	AS2856 British Telecommunications PLC	`3.69ms` from Erith, GB
51.14.136.136	AS2856 British Telecommunications PLC	`7.89ms` from London, GB
51.14.78.201	AS2856 British Telecommunications PLC	`7.78ms` from London, GB
51.14.75.211	AS2856 British Telecommunications PLC	`2.34ms` from London, GB
51.14.254.86	AS2856 British Telecommunications PLC	`1.63ms` from London, GB
51.14.116.137	AS2856 British Telecommunications PLC	`1.84ms` from London, GB
51.14.247.158	AS2856 British Telecommunications PLC	`4.42ms` from Erith, GB
51.14.115.14	AS2856 British Telecommunications PLC	`2.90ms` from Erith, GB
51.14.208.244	AS2856 British Telecommunications PLC	`13.36ms` from London, GB
51.14.192.8	AS2856 British Telecommunications PLC	`5.30ms` from London, GB

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
35.89.157.80	AS16509 Amazon.com, Inc.	`0.24ms` from Boardman, US
80.201.216.224	AS5432 Proximus NV	`2.93ms` from Brussels, BE
94.21.81.240	AS20845 DIGI Tavkozlesi es Szolgaltato Kft.	`1.37ms` from Budapest, HU
173.22.177.64	AS30036 Mediacom Communications Corp	`12.24ms` from Chicago, US
14.244.170.208	AS45899 VNPT Corp	`3.44ms` from Hanoi, VN
43.245.152.16	AS38195 Superloop	`0.42ms` from Hong Kong, HK
195.11.146.144	AS1273 Vodafone Group PLC	`0.54ms` from London, GB
47.113.42.64	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`1.83ms` from Shenzhen, CN
176.229.147.144	AS12400 Partner Communications Ltd.	`1.89ms` from Tel Aviv, IL
115.52.69.160	AS4837 CHINA UNICOM China169 Backbone	`4.92ms` from Zhengzhou, CN
157.151.182.96	AS31898 Oracle Corporation	`0.29ms` from Ashburn, US
107.142.145.192	AS7018 AT&T Enterprises, LLC	`11.55ms` from Dallas, US
217.250.139.80	AS3320 Deutsche Telekom AG	`4.83ms` from Frankfurt am Main, DE
72.220.70.144	AS22773 Cox Communications Inc.	`7.01ms` from Los Angeles, US
183.176.80.192	AS7522 STNet, Incorporated	`7.55ms` from Osaka, JP
176.174.47.224	AS5410 Bouygues Telecom SA	`7.59ms` from Paris, FR
104.44.44.224	AS8075 Microsoft Corporation	`0.37ms` from Seattle, US
114.116.237.64	AS55990 Huawei Cloud Service data center	`3.68ms` from Beijing, CN
54.77.115.160	AS16509 Amazon.com, Inc.	`0.16ms` from Dublin, IE
183.57.76.0	AS4134 CHINANET-BACKBONE	`4.18ms` from Guangzhou, CN
115.75.80.16	AS7552 Viettel Group	`2.56ms` from Ho Chi Minh City, VN
113.231.239.128	AS4837 CHINA UNICOM China169 Backbone	`6.68ms` from Liaoyang, CN
23.87.109.32	AS20115 Charter Communications LLC	`16.11ms` from Milwaukee, US
39.76.52.64	AS4837 CHINA UNICOM China169 Backbone	`6.54ms` from Qingdao, CN
100.30.108.208	AS14618 Amazon.com, Inc.	`0.19ms` from Reston, US

Traceroute

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

traceroute -a -n -q1 -f4 51.14.229.242

traceroute to 51.14.229.242 (51.14.229.242): 64 hops max, 52 byte packets

4 [AS2856] 194.74.16.190 2.674 ms

5 *

6 *

7 [AS2856] 51.14.229.242 16.817 ms

Measurement taken from

IPinfo ProbeNet in London, GB

On December 6th 2025

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