O2.ie is currently undergoing scheduled maintenance and will be unavailable from 05:00 AM until 05:30 AM On Wensday 22nd October. While the upgrades are taking place during the evening / night to ensure as little disruption as possible, we nonetheless apologise for any inconvenience caused.
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
Dial 1909 and follow options 2 and then 4 for this
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 1741 (1850 601741 from a landline).
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