OS Open USRN
An open dataset containing all Unique Street Reference Numbers (USRNs) from OS MasterMap Highways Network with a simplified line geometry.
A USRN is a unique and persistent identifier for every street, road, track, path, cycle track or cycle way in Great Britain.
Essential identifiers for streets
Our Open USRN product contains USRNs (Unique Street Reference Numbers) across Great Britain. USRNs are the authoritative identifier assigned to and uniquely identifying streets, and are essential for managing Great Britain's highways. Once it's 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.
Share and link data
OS Open USRN will enable you to start sharing and linking together information about USRNs which you can visualise with a location.
How to get this product
Access to this OS OpenData product is free through the OS Data Hub.
What's next?
To access additional documentation and resources relating to this product, please refer to the following:
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