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Ordnance Survey of Northern Ireland - OSNI Mapping

Ordnance Survey of Northern Ireland

Notice: the online help desk will be unavailable from 29 August to 2 September

OSNI Online Helpdesk
Visit the OSNI
Online Map ShopOpens in a new browser window

OSNI ACEmap ®

Create an address centred mapping extract

OSNI Product Range

What’s in the full OSNI range of products?

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