Irish mobile numbers always being with 08. You would put 00 353 before that and drop the leading zero. So to phone 089 123 4567 you would dial 00 353 89 123 4567.
Replace the trunk prefix 0 of the UK number with 00 44.
Just dial the UK mobile number. It does not matter that the mobile is roaming in Ireland (or anywhere else); the network will automatically locate the mobile, and the roaming mobile user will pay any applicable roaming surcharges.
Dial the UK mobile number exactly the same way you do when the mobile is in the UK.
Dial 00 353 and then the landline with its area code and leaving out the first zero.
Customers can call 789 from their Virgin Mobile phone to call Virgin Mobile UK. Other customers can call 0845 650 4500.
The mobile virtual network operator Tesco Mobile uses the TelefÃ_nica UK Limited (O2) network as its carrier in UK and Ireland. This enables them to have a 99% coverage of the population in UK and Ireland.
To call a UK-based mobile phone, wherever in the world it may be physically located, you always just dial the UK mobile number the same way you do when the mobile is in the UK. The network will automatically locate the mobile and re-route the call accordingly, and the mobile user will pay any applicable surcharges for roaming.
Dial the UK mobile number exactly the same way you do when the mobile is at home in the UK. The mobile network will automatically locate it.
Northern Ireland is in the UK, and the international dialling code for the UK is +44.
To call a UK mobile from a UK landline, you always just dial the UK mobile number, exactly the same way you do when it is in the UK. The network will find the mobile automatically, and the mobile user will pay any applicable surcharges for international roaming.
To phone anywhere in the UK from Ireland, replace the trunk prefix 0 at the beginning of the UK number with 00 44, or +44 from a GSM mobile. There is one special code. To call a landline in Northern Ireland from the Republic of Ireland, you can dial 048 instead of 00 44 28, followed by the 8-digit local number.
Your mobile phone will pick up a network provider when you are in Ireland so your phone will work.