Product supply

Available formats

OS Open Names is available in the following formats:

  • Comma-separated values (CSV)

  • Geography Markup Language (GML) 3.2.1

  • GeoPackage

Supply mechanism

OS Open Names is supplied as an online download from the OS Data Hub.

In addition to the data product, OS Open Names content is available to PSGA (Public Sector Geospatial Agreement) Members and OS Partners through the OS Names API, which is accessible via the OS Data Hub.

Product update schedule

OS Open Names is updated from Ordnance Survey’s data content stores and released to customers every three months (in January, April, July and October) to ensure the latest named features are published.

Coverage and file sizes

Coverage for OS Open Names is Great Britain. File sizes for the formats are as follows:

  • CSV: 96MB

  • GML 3.2.1: 184MB

  • GeoPackage: 256MB

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