Ireland-based open access network operator enet is to invest £175k into Belfast and the greater Northern Ireland telecoms infrastructure.
The Belfast network which is live and fully operational combines enet's wireless network with a fibre presence covering all the main business districts including the city centre, Titanic Quarter.
The new network also extends outside Belfast to surrounding areas.
enet is planning to continue to develop the Northern Ireland network by interconnecting with several network providers.
Conal Henry, enet CEO, said: "This marks the first time that enet has managed infrastructure across the island of Ireland.
"enet's experience is that, over time, the existence of an open access network has a vital and major impact on the range, quality and value of communications solutions for businesses and homes."
This Northern Ireland announcement follows on from enet's first entry into the UK market in partnership with SSE Enterprise Telecoms.