IP address lookup and information tool

Here you can find all lookup results for public IP address owned by BT. This includes the type of address, DNS lookup information, ISP and location details. At the bottom of the page you can find more functions like a detailed location map, abuse report, WHOIS information and an e-mail server blacklist check.

When designing the Internet addressing architecture, the Internet Engineering Task Force (IETF) and the Internet Assigned Numbers Authority (IANA) have reserved various Internet Protocol (IP) addresses and networks of various sizes (/8, /24, etc.) for special purposes or for future use. The rest of the /8 network blocks, where for instance is a part of, were assigned to single organizations or groups of related organizations. This was done by the Internet Corporation for Assigned Names and Numbers (ICANN) or through a regional Internet registry, or in short a RIR.
As IPv4 address exhaustion has advanced to its final stages, some organizations have returned their allocated blocks to assist in the delay of the exhaustion date.

Technical details

We've detected that you're not browsing anonymously. Please read our how to hide my IP tutorial to solve this.
IP address81.150.20.120
Address typePublic
Protocol versionIPv4
Network classClass A
Conversions1368790136 (decimal / iplong)
51961478 (hex / base 16)
8115020120 (numeric)
Reverse DNS120.20.150.81.in-addr.arpa
Reverse lookuphost81-150-20-120.in-addr.btopenworld.com

Location details

ZIP / Postal codeBH31
CountryThe United KingdomThe United Kingdom

Latitude50.875702 (50°52'32.53" N)
Longitude-1.872100 (1°52'19.56" W) location

Websites hosted on this IP address

  • There are no websites found hosted on this public IP address

WHOIS lookup

WHOIS is an international recognized protocol to query worldwide databases that store information on internet resources. It was documented in RFC 3912 by the Internet Society back in 2004, but is still current. It has been reported that the protocol will soon be obsolete due to privacy reasons, and will be replaced with a less transparent system.

[Querying whois.ripe.net]
This is the RIPE Database query service.
The objects are in RPSL format.

The RIPE Database is subject to Terms and Conditions.
See http://www.ripe.net/db/support/db-terms-conditions.pdf

Note: this output has been filtered.
To receive output for a database update, use the "-B" flag.

Information related to ' -'

Abuse contact for ' -' is 'abuse@bt.com'

inetnum: -
netname: BT-21CN-TMAN-V2
descr: BT-21CN-TMAN-V2
country: GB
admin-c: BS1474-RIPE
tech-c: BS1474-RIPE
remarks: Please send abuse notification to abuse@bt.net
mnt-by: BTNET-MNT
mnt-lower: BTNET-MNT
mnt-routes: BTNET-MNT
created: 2015-06-18T12:36:04Z
last-modified: 2015-06-18T12:36:04Z
source: RIPE

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
admin-c: FLS15-RIPE
tech-c: BS1474-RIPE
nic-hdl: BS1474-RIPE
remarks: For all queries contact as2856peering@bt.com
remarks: Please send delisting issues to btnetdns@bt.net
mnt-by: BTNET-MNT
created: 2002-04-30T07:54:10Z
last-modified: 2009-11-19T15:52:52Z
source: RIPE # Filtered

Information related to ''

descr: BT Public Internet Service
origin: AS2856
created: 2002-10-22T13:45:17Z
last-modified: 2014-07-31T07:51:30Z
source: RIPE # Filtered

This query was served by the RIPE Database Query Service version 1.89.2 (ANGUS)