OS Open USRN

A Unique Street Reference Number (USRN) is a unique and persistent identifier for every street, road, track, path, cycle track or cycle way in Great Britain.

  • Identifiers
  • Download
  • OS OpenData Plan (FREE)
  • Premium Plan
  • Public Sector Plan

This product is updated monthly

Representation of data provided
Representation of data provided
© Crown copyright and database rights. Ordnance Survey 2025

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.

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.

OS Open USRN

Technical information

© Crown copyright and database rights. Ordnance Survey 2025

Specifications

Use cases

OS Open USRN enables users to:

  • Share information held against a USRN with a location
  • Link together information associated with USRNs
Access
  • Download
Data theme
  • Transport
Data structure
Vector - Identifiers
Coverage
Great Britain
Scale
1:1250 to 1:10,000
Format
  • GeoPackage
Ordering area
  • All of Great Britain
OS Data Hub plan
  • OS OpenData Plan (FREE)
  • Premium Plan
  • Public Sector Plan

Documents and Support

Technical documentation

OS Open USRN

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What you get

Key features
  • Essential identifiers for streets
  • Authoritative source
  • Complete USRN data
  • Share and link data
Category
Identifiers
Access
  • Download
Data structure
Vector - Identifiers
Update frequency
Monthly

How to access

OS OpenData is free

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Further support

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