National Statistics Postcode Lookup (February 2018) User Guide

Published by:
Office for National Statistics
Last updated:
11 August 2025
Topic:
Not added
Licence:
None

Summary

This User Guide contains information about the NSPL including: directory content; data currency; the methodology for assigning areas to postcodes; data formats; data quality and limitations and details of recent changes that have impacted on the data. Various annexes and tables provide more detailed supporting information.  (File Size - 424 KB)


* STOP PRESS *

For the new release of the NSPL, there are important field changes. Please read the User Guide for full details. The ‘old’ directories will be included for one release only. From May 2018 only the new layout will be available.

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