Ireland continues to have the highest levels of outgoing voice usage per customer in the Vodafone Group's mobile businesses, and the highest data usage in the Group's European mobile businesses.
The figures were confirmed by Vodafone Ireland's turnover increasing by 12% on the back of increased voice and data usage in the State.
Average revenue per user grew from €553 to €582 last year.
Vodafone Ireland reported it had 1,864,000 customers at the end of the fiscal year - a market share of 54%.
Operating profit, before goodwill amortisation and exceptional items, increased by 16%, the company said today.
Vodafone Ireland's parent company, Vodafone, reported a 19% increase in pre-tax profits to £10bn (€14.96bn) for the year to March.