1. All IP Ranges
  2. 51.0.0.0/8
  3. 51.14.0.0/16
  4. AS2856  | 51.14.0.0/16

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:    abuse@bt.com
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:         ipaddman@bt.com
abuse-email:    abuse@bt.com
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:         as2856peering@bt.com
e-mail:         btnetdns@bt.com
admin-c:        FLS15-RIPE
tech-c:         FLS15-RIPE
nic-hdl:        BS1474-RIPE
remarks:        For all queries contact as2856peering@bt.com
remarks:        Please send delisting issues to btnetdns@bt.com
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:         ipaddman@bt.com
e-mail:         abuse@bt.com
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:         ip.address.admin@bt.com
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
51.176.0.0/15 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
51.214.0.0/15 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
51.182.0.0/15 AS5607 SKY UK Limited 131,072
51.16.0.0/15 AS16509 A100 Row Inc 131,072
51.216.0.0/15 AS16509 A100 ROW Inc 131,072
51.192.0.0/15 AS16509 A100 ROW Inc 131,072
51.172.0.0/15 AS16509 A100 ROW Inc 131,072
51.254.0.0/15 AS16276 OVH SAS 131,072
51.212.0.0/15 AS16509 A100 ROW Inc 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
51.220.0.0/15 AS16509 A100 ROW Inc 131,072
51.174.0.0/15 AS29695 Altibox AS 131,072
51.186.0.0/15 AS5607 SKY UK Limited 131,072
51.4.0.0/15 AS8075 Microsoft Deutschland MCIO GmbH 131,072
51.196.0.0/15 AS16509 A100 ROW Inc 131,072
51.190.0.0/15 AS5607 SKY UK Limited 131,072
51.184.0.0/15 AS16509 A100 ROW Inc 131,072
51.252.0.0/15 AS25019 Saudi Telecom Company JSC 131,072
51.208.0.0/15 AS16509 A100 ROW Inc 131,072
51.188.0.0/15 AS16509 A100 ROW Inc 131,072
51.156.0.0/15 AS16509 A100 Row Inc 131,072
51.122.0.0/15 AS16509 A100 Row Inc 131,072
51.168.0.0/15 AS16509 A100 ROW Inc 131,072
51.180.0.0/15 AS16509 A100 ROW Inc 131,072
51.224.0.0/15 AS16509 Amazon Data Services European Sovereign Cloud GmbH 131,072
51.228.0.0/15 AS16509 A100 ROW Inc 131,072
51.20.0.0/16 AS16509 A100 ROW Inc 65,536
51.125.0.0/16 AS16509 A100 ROW Inc 65,536
51.155.0.0/16 AS13037 Zen Internet Limited 65,536
51.160.0.0/16 AS16509 A100 ROW Inc 65,536
51.129.0.0/16 AS16509 A100 ROW Inc 65,536
51.148.0.0/16 AS13037 Zen Internet Limited 65,536
51.139.0.0/16 AS16509 A100 ROW Inc 65,536
51.150.0.0/16 AS16509 A100 Row Inc 65,536
51.112.0.0/16 AS16509 A100 ROW Inc 65,536
51.110.0.0/16 AS16509 A100 Row Inc 65,536
51.21.0.0/16 AS16509 A100 ROW Inc 65,536
51.108.0.0/16 AS16509 A100 Row Inc 65,536
51.91.0.0/16 AS16276 OVH SAS 65,536
51.121.0.0/16 AS16509 A100 ROW Inc 65,536
51.118.0.0/16 AS16509 A100 ROW Inc 65,536
51.89.0.0/16 AS16276 OVH SAS 65,536

Hosted domains

There are 36 domain names hosted across 30 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 connor-bell.com 5
51.14.115.209 qdsl.co.uk 2
51.14.173.166 thedrownedgardener.com 2
51.14.2.247 tonyhunt.uk 2
51.14.113.53 36ve.co.uk 1
51.14.222.72 grfstuff.com 1
51.14.109.226 langton.cc 1
51.14.16.172 papapoopie.com 1
51.14.242.221 bincal.uk 1
51.14.35.106 kalzooestateagents.com 1
51.14.125.21 dysportmeetings.com 1
51.14.69.178 holmes-online.com 1
51.14.89.52 tunafi.com 1
51.14.164.238 senaxios.com 1
51.14.66.159 holmes-online.com 1
51.14.67.35 i-am-root.co.uk 1
51.14.187.237 vserv1.com 1
51.14.220.205 robflix.co.uk 1
51.14.242.152 edwinek.uk 1
51.14.42.189 saeph.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

54,163 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
51.14.228.196 AS2856 British Telecommunications PLC 4.78ms from London, GB
51.14.198.246 AS2856 British Telecommunications PLC 10.38ms from London, GB
51.14.173.59 AS2856 British Telecommunications PLC 4.23ms from London, GB
51.14.172.240 AS2856 British Telecommunications PLC 1.78ms from London, GB
51.14.244.136 AS2856 British Telecommunications PLC 6.73ms from London, GB
51.14.196.195 AS2856 British Telecommunications PLC 8.15ms from London, GB
51.14.202.250 AS2856 British Telecommunications PLC 2.28ms from London, GB
51.14.193.67 AS2856 British Telecommunications PLC 5.42ms from London, GB
51.14.221.220 AS2856 British Telecommunications PLC 1.78ms from London, GB
51.14.255.81 AS2856 British Telecommunications PLC 7.88ms from London, GB
51.14.184.18 AS2856 British Telecommunications PLC 4.70ms from London, GB
51.14.208.132 AS2856 British Telecommunications PLC 13.43ms from London, GB
51.14.187.158 AS2856 British Telecommunications PLC 1.79ms from London, GB
51.14.223.156 AS2856 British Telecommunications PLC 4.28ms from London, GB
51.14.160.53 AS2856 British Telecommunications PLC 8.39ms from London, GB
51.14.204.172 AS2856 British Telecommunications PLC 2.23ms from London, GB
51.14.156.43 AS2856 British Telecommunications PLC 1.62ms from London, GB
51.14.165.237 AS2856 British Telecommunications PLC 2.66ms from London, GB
51.14.210.237 AS2856 British Telecommunications PLC 13.55ms from London, GB
51.14.158.255 AS2856 British Telecommunications PLC 2.08ms from London, GB
51.14.192.222 AS2856 British Telecommunications PLC 5.71ms from London, GB
51.14.229.29 AS2856 British Telecommunications PLC 11.33ms from London, GB
51.14.226.222 AS2856 British Telecommunications PLC 11.95ms from London, GB
51.14.167.115 AS2856 British Telecommunications PLC 2.62ms from London, GB
51.14.218.229 AS2856 British Telecommunications PLC 3.42ms 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
105.98.20.208 AS36947 Telecom Algeria 10.94ms from Algiers, DZ
154.243.35.64 AS36947 Telecom Algeria 11.84ms from Algiers, DZ
73.177.230.16 AS7922 Comcast Cable Communications, LLC 4.82ms from Ashburn, US
35.129.151.176 AS20115 Charter Communications LLC 6.36ms from Atlanta, US
69.222.150.240 AS7018 AT&T Enterprises, LLC 3.69ms from Atlanta, US
58.245.119.224 AS4837 CHINA UNICOM China169 Backbone 8.48ms from Changchun, CN
164.58.199.80 AS5078 Oklahoma Network for Education Enrichment and 6.00ms from Dallas, US
98.38.187.128 AS7922 Comcast Cable Communications, LLC 5.89ms from Denver, US
36.81.224.0 AS7713 PT Telekomunikasi Indonesia 6.55ms from Jakarta, ID
105.228.22.16 AS37457 Telkom SA Ltd. 2.40ms from Johannesburg, ZA
41.60.107.128 AS30844 Liquid Telecommunications Ltd 12.47ms from Lusaka, ZM
95.214.255.32 AS31543 myNet GmbH 5.40ms from Milan, IT
138.197.231.0 AS14061 DigitalOcean, LLC 0.10ms from New York City, US
172.100.120.64 AS11351 Charter Communications Inc 11.95ms from Secaucus, US
1.11.29.0 AS18313 LG HelloVision Corp. 1.41ms from Seoul, KR
14.95.150.192 AS4766 Korea Telecom 1.85ms from Seoul, KR
116.126.3.176 AS9318 SK Broadband Co Ltd 3.79ms from Seoul, KR
36.239.49.112 AS3462 Data Communication Business Group 5.27ms from Taichung, TW
223.135.35.48 AS2527 Sony Network Communications Inc. 1.87ms from Tokyo, JP
4.255.58.144 AS8075 Microsoft Corporation 0.39ms from Ashburn, US
172.77.148.224 AS5650 Frontier Communications of America, Inc. 15.05ms from Chicago, US
20.218.134.64 AS8075 Microsoft Corporation 0.22ms from Frankfurt am Main, DE
123.187.245.16 AS4134 CHINANET-BACKBONE 0.11ms from Liaoyang, CN
132.249.213.32 AS195 San Diego Supercomputer Center 2.60ms from Los Angeles, US
2.238.13.208 AS12874 Fastweb SpA 8.23ms from Milan, IT

Traceroute

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

$
traceroute -a -n -q1 -f3 51.14.175.43
traceroute to 51.14.175.43 (51.14.175.43): 64 hops max, 52 byte packets
3 [AS3170] 45.87.28.94 4.052 ms
4 [] 195.66.224.10 4.181 ms
5 [AS2856] 62.6.201.170 4.695 ms
6 *
7 *
8 [AS2856] 51.14.175.43 19.428 ms
Measurement taken from IPinfo ProbeNet in Wolverhampton, GB
On

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

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