VISITORS OCCASIONALLY ASK "how do I dial a mobile phone in Ireland?" When calling from outside Ireland, you need to add the country code 353 to the mobile phone number and drop the zero in front of the mobile phone number. From some countries, you dial 003538 and the rest of the mobile phone number. From the States, most people dial 0113538 and the rest of the mobile phone number. But clever people often have mobile phones in their pockets that ring when you dial a number based in another country. You can do that if you have a MAXroam account. Sometimes that means getting a MAXroam phone and other times it means just putting a MAXroam SIM into your phone that tells your phone it's actually a landline in another country. MAXroam converts your mobile phone into VoIP service.