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AddressBase products epoch dates

Find the latest - and past - epoch dates for our addressing products.

AddressBase, AddressBase Plus, AddressBase Premium and AddressBase Islands are updated every six weeks. This six week period of time is known as an epoch.

Our AddressBase products are currently available as a full supply or Change Only Update (COU) for each epoch.

Future dates are provided as an indication only and are subject to change. Data cut dates are estimated; these are given to provide an indication of the last point at which changes will reach the epoch.  

Please note: as we approach the publication date and prepare to release a new epoch, any new requests placed for data will be paused to ensure data integrity. These requests will be processed as soon as this pause is lifted.

Epoch number Publication date Data cut date
77 16 July 2020 15 June 2020
78 27 August 2020 27 July 2020
79 8 October 2020 8 September 2020
80 19 November 2020 19 October 2020
81 7 January 2021 30 November 2020

Past epoch publication dates

Epoch number Publication date Data cut date
76 4 June 2020 4 May 2020
75 22 April 2020 23 March 2020
74 12 March 2020 10 February 2020
73 30 January 2020 6 January 2020
72 18 December 2019 18 November 2019