This is the User Guide for the ONS UPRN Directory (ONSUD) for Great Britain as at June 2017. The ONSUD relates the Unique Property Reference Number (UPRN) for each GB address to a range of current...
DATA SOURCES: 1. ONLY state sources (city/county/state administration, federal agencies, ministries, etc.). We DO NOT use unverified databases 2. Over 2300 sources. We use even the smallest sources, b
