The Three network is down this evening.
Three have over a million customers in Ireland and many of them have not been able text or make calls since this afternoon.
Outages are being reported nationwide.
Three recently took over the O2 network.
The company's official account tweeted:
Some customers may be experiencing issues with their service. We’re working on getting this fixed ASAP. Sorry for any inconvenience caused.
— Three Ireland Online (@ThreeCare) April 6, 2015