API documentation

PostZon Data File

We supply the Royal Mail PostZon data file (Geo data) in a simple optimised text file for import into your SQL server.

This by nature of the data is relatively simple:

Our PostZon data format

                  Example of PostZon record for 1 Postcode   
                    
                    Postcode|GridRefEast|GridRefNorth|Long|Lat|||||||||||||||||

Any of these fields could be indexed for your own particular needs.

How to provide search

The user enters a postcode. You should then clean the Postcode format before doing the search. See section below.

Then simply find the PostZon record from the first field “Postcode” and then use data.

Example PostZon Data

The Example download below contains a VBNET and a C# code example of how to convert the PAF data into an address list for display.

Download Examples

13 Mb Example of Full, Street and PostZon data (Geodate)

Download

Please note: In accordance with Royal Mail Terms and Conditions, you must have a valid “Large business Package” license. We only supply this type of PAF data for a “Large business Package” license. Please call for the price of these licenses.