AddressBase Islands May 2025 – Epoch 118

This release note provides information about the May 2025 (Epoch 118) release of the AddressBase Islands products. These products were released to customers on 01 May 2025.

Object Without Postal Address (OWPA) enhancement in Epoch 118 for AddressBase Premium Islands and AddressBase Plus Islands

There is a small uplift in this release of both AddressBase Premium Islands and AddressBase Plus Islands due to an improvement in the Object Without Postal Address (OWPA) features contained within these products. As a result of this uplift, COU counts are around 30% larger, in comparison to the 3 previous releases; this may result in slower processing times.

Record counts

Product	Full Supply Record Count	Change-Only Update Record Count
AddressBase Plus Islands	1 162 955	17 958
AddressBase Premium Islands	See rows below	See rows below
Street	48 792	321
Street Descriptor	48 792	32
BLPU	1 241 870	17 908
Classification	1 241 870	3 589
LPI	1 251 678	4 131
Organisation	38 842	254
Delivery Point Address	979 023	14 044
Application Cross Ref.	1 307 510	3 429
Successor	0	0

Changed records

If you receive a Change-Only Update (COU) supply for your AddressBase Islands product, you will receive Insert, Update and Delete records within the supplied file. The following tables detail the count of these records.

AddressBase Plus Islands

Change Type	Count
Inserts	8 257
Updates	9 464
Deletes	237

AddressBase Premium Islands

AddressBase Premium Islands Table	Inserts	Updates	Deletes
Street	32	289	0
Street Descriptor	32	0	0
BLPU	2 806	14 937	165
Classification	2 806	618	165
LPI	2 825	1 141	165
Organisation	156	42	56
Delivery Point Address	13 190	213	641
Application Cross Ref.	2 773	360	296
Successor	0	0	0

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 'Working with COU data' in the AddressBase Getting Started Guide.

Source data currency

The following information relates to the currency of the source data used in the creation of Epoch 118:

Data Source	Date
Pointer (Northern Ireland)	27 March 2025
DigiMap (Channel Islands)	27 March 2025
Isle of Man	27 March 2025
Royal Mail PAF	27 March 2025

Data issues

AddressBase Plus Islands issues

Details of live and resolved data issues for AddressBase Plus Islands will be communicated on the AddressBase Plus Islands Known Data Issues page. This page will provide details of their impacts and updates on the expected time frame for their resolution.

AddressBase Premium Islands issues

Details of live and resolved data issues for AddressBase Premium Islands will be communicated on the AddressBase Premium Islands Known Data Issues page. This page will provide details of their impacts and updates on the expected time frame for their resolution.

Next release

The next release of AddressBase Islands products, Epoch 119, is scheduled for 12 June 2025.