10 June 2025
This release note provides information about the release of the AddressBase Core product on 10 June 2025.
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This release note provides information about the release of the AddressBase Core product on 10 June 2025.
Last updated
Was this helpful?
AddressBase Core
34 655 018
32 534
There is a difference in record counts between taking a national Managed Great Britain Set (MGBS) and the national 5km-tile supply. This is because the two supplies use different selection criteria. The difference in record counts is shown in the following table, allowing you to validate your data holdings once you have loaded the latest release of AddressBase Core.
AddressBase Core
34 655 018
34 655 008
10
A small difference in record counts is expected due to there being several features supplied in the MGBS which fall outside of the tiled area.
If you receive a Change-Only Update (COU) supply for your AddressBase Core product, you will receive Insert, Update and Delete records within the supplied file. The following table details the numbers of these records which can be expected in the COU supply of the product:
Inserts
6 595
Updates
23 772
Deletes
2 167
COU populated 5km tile count
2 910
The following information relates to the currency of the source data used in the creation of this release of AddressBase Core:
Royal Mail Postcode Address File (PAF)
05 June 2025
National Land and Property Gazetteer
06 June 2025
One Scotland Gazetteer
12 May 2025
OS MasterMap Topography Layer
10 April 2025
Details of data issues for AddressBase Core will be communicated on the . This page will provide details of the impacts of any data issues, plus updates on the expected time frame for resolution.
It's important that COUs are processed with Deletes first, then Inserts and Updates. This is to ensure that updates are applied in the correct order. Further guidance on this can be found in '' in the AddressBase Getting Started Guide.