AddressBase Islands Products April 2026 – Epoch 126

This release note provides information about the April 2026 Epoch 126 release of the AddressBase Islands products. These products were released to customers on 02 April 2026.

Record counts

Product	Full Supply Record Count	Change-Only Update Record Count
AddressBase Plus Islands	1 173 153	6 231
AddressBase Premium Islands	See rows below	See rows below
Street	49 217	131
Street Descriptor	49 217	22
BLPU	1 251 088	6 329
Classification	1 251 088	2 975
LPI	1 261 500	2 866
Organisation	38 009	1 689
Delivery Point Address	987 261	1 496
Application Cross Ref.	1 316 163	2 016
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	933
Updates	4 660
Deletes	638

AddressBase Premium Islands

AddressBase Premium Table	Inserts	Updates	Deletes
Street	21	110	0
Street Descriptor	21	1	0
BLPU	699	5 389	241
Classification	699	2 035	241
LPI	713	1 912	241
Organisation	234	795	660
Delivery Point Address	885	430	181
Application Cross Ref.	732	883	401
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 126:

Data Source	Date
Pointer (Northern Ireland)	18 February 2026
DigiMap (Channel Islands)	26 February 2026
Isle of Man	26 February 2026
Royal Mail PAF	26 February 2026

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 127, is scheduled for 14 May 2026.