OS Open USRN

Transport networks

OS Open USRN (Unique Street Reference Number) is a dataset that provides unique identifiers for all roads and streets across Great Britain. It includes comprehensive information on street names, locations, and their unique identifiers, making it a valuable resource for various sectors. It is ideal for urban planning and development and traffic management, suitable for new road infrastructure, optimising existing road networks and emergency response.

This product is updated monthly

View documentationFree to use for everyone

Data access: Download
Data structure: Vector
Scale/resolution: 1:1 250 to 1:10 000
Format: GeoPackage

What OS Open USRN provides you with

Essential identifiers for streets

Our Open USRN product contains USRNs across GB. They are the authoritative identifier assigned to and uniquely identifying streets and are essential for managing Great Britain's Highways. Once its allocated to a street record, a USRN will never change or be reused.

Authoritative source

The USRNs in OS Open USRN are allocated by Highway or Road Authorities and Highway Bodies, under their statutory responsibility to maintain this information. This means you can have confidence you’re accessing an authoritative source of these identifiers.

Complete USRN data

All USRNs present in OS MasterMap Highways Network, are also included in this product – so you can be sure you’re not missing out.

OS Open USRN will enable you to start sharing and linking together information about USRNs which you can visualise with a location.

Use cases

Share information held against a USRN with a location
Link together information associated with USRNs
Interpret the land cover adjacent to transport features.