Contact Us

National Numbers is based in sunny Billingham in the North East of England.
The staff all wear flat caps and have a passing interest in whippets!
The office has a beautiful panoramic view of the largest petrochemical complex in Europe.

On a more serious note, we can be contacted in the following ways :

Postal Address : National Numbers House, The Grange, Belasis Avenue, Billingham, Cleveland, TS23 1LG

Sales Line : 01642 36 37 38

Office Hours : Monday to Friday 9am to 7pm
9:30am to 7pm Saturday, 10am to 7pm Sunday

Administration Line : 01642 365000

This line open ONLY 10am to 2pm Monday through Friday

Calls are charged at standard rate.

Or EMail us at sales@nngb.com

We follow a strict complaints procedure and two Codes of Practice.
As members of the CNDA and RMI, we can offer use of an Independent Conciliation and Arbitration process. The Codes of Practice for both CNDA and RMI can be found here:

The RMI can be contacted directly via: Head of CNDA, RMI, 201 Great Portland Street, London W1W 5AB"