Created by merging and deduplicating information from leading UK consumer data providers, the UKChanges date of birth file contains over 20 million records and is gathered through a variety of opted-in sources.

Available to account holders via UKChanges>online as an age append service, the information returned can be employed as an indication of household status, as an aid to profiling for age-specific products or, in the case of the insurance and life assurance markets, as a selection for premium-led campaigns.