These are randomly generated, fictional UK addresses. They do not correspond to real properties or residents and are provided for software testing and development only.
Post towns, postcode districts, localities, counties and countries are real reference data. Building numbers, building names, street pairings, recipient names and the inward half of every postcode are generated, so the result is not a Royal Mail delivery point.
Numbers come exclusively from Ofcom ranges reserved for drama and fiction, which are never allocated to subscribers.
The lookup and validator report postcode structure and district-to-post-town relationships from a curated registry. They do not query Royal Mail's PAF and cannot confirm that a property exists.
All data is provided "as is" without warranty of accuracy, completeness or fitness for a particular purpose.