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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.

OS Open USRN

A dataset containing all USRNs from OS MasterMap Highways Network with a simplified line geometry.

OS Open TOID

A dataset of unique identifiers for a wide range of landscape and built environment features, with a generalised location, extracted from OS MasterMap products.

OS Open UPRN

A dataset of unique identifiers for every addressable location in Great Britain, containing all UPRNs and geometry from AddressBase Premium.