OS Open Linked Identifiers

OS Open Linked Identifiers provides authoritative relationship between UPRNs, USRNs, TOIDs and meta data to enable reliable matching; for greater data connectivity. Authoritative relationships OS Open Linked Identifiers is a dataset containing the authoritative relationships between Unique Property Reference Numbers (UPRNs), Unique Street Reference Numbers (USRNs) and Topographic Object Identifiers (TOIDs). Watch our OS Open Linked Identifiers introduction video.

Better visualisation Connecting addresses with road features enables more related data to be joined together which simplifies a number of valuable workflows. Linking these features to graphical elements of OS MasterMap products enables better visualisation of the data related to them.

Find all addresses on a road Link data related to an address with its building footprint. Validate an addresses UPRN with the name of the road that accesses it. Validate a streets USRN with the name of the road it relates to.