As Three and O2 are coming together, Three.ie will be offline for 13 hours from 6p.m. on Sunday March 1st. We're carrying out maintenance during the evening/night to create as little disruption as possible. Sorry for the inconvenience - we'll be up and running again shortly.
If you are looking to pre-register your interest in the HTC One M9,click here
Bill customers can just press *111# and the call button on your handset to show how many units you've used, or *101# and the call button for your unbilled amount.
why not use our freephone number 1909(1850 601909 from a landline) and choose option 1
It's 1909 and follow options 2,2 and 2 again
Prepay customers can check their balance by dialling *100# and the call button.
If you have a top up voucher you can apply it by calling 1744
If you have an urgent query, please use the Web Chat function on this page and one of our agents will endeavour to assist you.
This service is available from 7am to 10.30pm Monday to Saturday, and until 10pm on Sundays