Our Help section may be able to help you in the first instance:

By email

For general enquiries, complaints, feedback or suggestions email us at the following address: explore@ordnancesurvey.co.uk

By letter

Drop us a line at the following address:

Customer Service Centre,
Ordnance Survey,
Romsey Road,
Southampton,
SO16 4GU

By phone

Our helpline is open from 8.30am to 5.30pm, Monday to Friday. Call us on +44 (0) 8456 05 05 05 for all general public enquiries.

We also have a dedicated Welsh language helpline: 08456 05 05 04.

If you're calling from outside Britain, please dial +44 23 8079 2912 (international calls are charged at the standard rate).

Textphone: 023 8079 2906

By fax

Send us a fax message on +44 (0) 23 8079 2615. If you're calling from outside Britain, the number is +44 23 8079 2615.