CodeLook
Magenta Dialling Code Lookup
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Database Updated:
13th January 2021

Page Updated:
17th January 2020

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CodeLook has two main functions, looking up partial UK telephone numbers to find the locality and call costs, and looking up locality names and post codes to find the code.  For localities and post code, broadband ADSL and fibre availability information is provided. The CodeLook database is updated every one or two weeks.

Partial Telephone Number to Lookup: Own Telephone Code (optional):
Locality or Post Code to Lookup: Call Costing Package: BT Unlimited Weekend Calls

Number Locality or Use Service Charging Operator Number Status
0345 800    UK Wide 0845 Migration   UK Wide     B4 UK Wide 03   JT (Jersey)    Allocated  
0800 078 1    Freephone Services   Service     Z0 No fee   JT (Jersey)    Allocated  
0800 735    Freephone Services   Service     Z0 No fee   JT (Jersey)    Allocated  
0808 901 3    Internet Services Free to Caller   Service     Z0 No fee   JT (Jersey)    Allocated  
0844 405    Service   Service         JT (Jersey)    Allocated  
0844 442    Service   Service         JT (Jersey)    Allocated  
0844 469    Service   Service         JT (Jersey)    Allocated  
0844 703    Service   Service         JT (Jersey)    Allocated  
0845 041    Service   Service         JT (Jersey)    Allocated  
0845 800    Service   Service     SC002 1p/min + Acc Charge     JT (Jersey)    Allocated  
0870 002    Service   Service         JT (Jersey)    Allocated  
0870 253    Service   Service         JT (Jersey)    Allocated  
0871 206    Service   Service         JT (Jersey)    Allocated  

The partial telephone number can be UK national, international. UK mobile, UK premium, a UK service or UK indirect code. It may be a combined indirect code and partial number. Numbers are entered as dialled from UK landline and mobile telephones.  

New Allocated in the Number Status column shows active numbers, Protected, Quarantined, Reseved and Free are numbers not currently in-use or never used, Ofcom use of status has varied over the years.  Note Ofcom data does not include all non-allocated numbers.  

Please note this site is intended to look up UK telephone numbers, it lists some international numbers but only with country names and those numbers necessary to identify more expensive international calls. No personal information is returned by CodeLook, it is not possible to find the user of a landline or mobile number without a legal court order.

When searching localities and area codes, postal county and island names may be entered.  Historic information is available for some numbers, also the Ofcom CUPID and other codes used by licensed operators.

To protect the web server, the number of lookups is limited each day to 20 lookups, unless you are a paid member and logged-on to this site. We are however offering free membership for non-commercial use by the various UK authorities that use CodeLook to trace telecom operators, please order free CodeLook Membership. A single logon can be shared by different shifts.  

This web site is duplicated on different servers for redundancy:

Main Site CodeLook https:/www.telecom-tariffs.co.uk/codelook.htm
Alternate Site CodeLook https:/www1.telecom-tariffs.co.uk/codelook.htm

Please bookmark the alternate site in case the main site becomes unavailable.
If all pages fail, please email Magenta Systems.

Magenta Systems Ltd, 9 Vincent Road, Croydon CR0 6ED, United Kingdom
Phone 020 8656 3636, International Phone +44 20 8656 3636
https://www.magsys.co.uk/
Copyright © 2021 Magenta Systems Ltd, England. All Rights Reserved.