AddressBase Islands Products May 2026 – Epoch 127

This release note provides information about the May 2026 Epoch 127 release of the AddressBase Islands products. These products were released to customers on 14 May 2026.

Record counts

Product	Full Supply Record Count	Change-Only Update Record Count
AddressBase Plus Islands	1 173 958	4 130
AddressBase Premium Islands	See rows below	See rows below
Street	49 244	166
Street Descriptor	49 244	29
BLPU	1 251 714	4 580
Classification	1 251 714	1 791
LPI	1 262 200	2 623
Organisation	37 985	88
Delivery Point Address	988 127	1 366
Application Cross Ref.	1 316 735	2 147
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	1 137
Updates	2 661
Deletes	638

AddressBase Premium Islands

AddressBase Premium Table	Inserts	Updates	Deletes
Street	27	139	0
Street Descriptor	27	2	0
BLPU	898	3 410	272
Classification	898	621	272
LPI	972	1 379	272
Organisation	20	24	44
Delivery Point Address	1 025	182	159
Application Cross Ref.	926	867	354
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 127:

Data Source	Date
Pointer (Northern Ireland)	01 April 2026
DigiMap (Channel Islands)	08 April 2026
Isle of Man	09 April 2026
Royal Mail PAF	09 April 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 128, is scheduled for 25 June 2026.