It said its total customer base stood at 2,058,000 by the end of September -- this figure includes 1,079,000 mobile customers.
Mobile revenues for Eircom, which owns Meteor as well as the E-Mobile, were down compared to last year but customer numbers were up.
Eircom chief executive Herb Hribar said the performance of the business "continues to decline, but the decline is slowing".
Earlier this month Eircom announced a partnership with Amazon Web Services to offer cloud services to its Irish and UK-based customers.
Eircom already offers a range of cloud services to its customers, offering data centre services to cloud providers in Ireland, and private infrastructure as a service to other customers.