Skip to main content

Welsh PAF

What is the Welsh PAF?

PAF® is a file of addresses of every single UK address and postcode and includes 29 million addresses for both businesses and residential properties and 1.8 million postcodes. PAF was created by the Royal Mail largely to help deliver mail efficiently, to allow for online address look up and to enable validation of addresses. The Welsh PAF file forms part of the larger UK file and provides complete and up to date addresses in the Welsh language which specify Welsh streets and localities.

 How can I use the Welsh PAF file to validate my database?

The Welsh PAF file is indispensable to anyone who needs to ensure that the Welsh addresses they hold are valid, clean and up-to-date. Holding accurate, clean addresses ensures that mailings always reach their destination, which is particularly important for organisations who rely on communicating via this channel. In addition holding accurate address information allows for better insight into an organisation’s customer base.

Organisations can purchase a PAF licence to use with their data quality solution. This will enable it to match the address data it holds against the file and correct any errors that are detected. Tools are also available to verify addresses at the point of capture to ensure that any address that enters a database is right first time.



Next glossary definition