The North American Numbering Plan (NANP) divides the territories of its member countries into Numbering Plan Areas (NPAs), each identified by a three-digit code commonly called area code.
Country code: +353 International call prefix: 00 Trunk prefix: 0. This is a list of telephone dialling codes for Ireland. Fixed-line telephone users do not need to dial the dialling code when they are contacting someone else within their own area. Tesco Mobile.