There are a number of international dial-through providers on 03 numbers (and a small number with 01 or 02 numbers). Where the caller has inclusive calls to 01, 02 and 03 numbers, there is then no additional charge for each such call made. Likewise for anyone who has inclusive calls to premium rate 0845 or 0870 numbers.

There are a number of mobile providers offering very cheap calls to international destinations. A cheap mobile handset and one of those SIM cards may be useful.

Calling an 084, 087 or 09 number for these services has not been cost effective for a number of years. These are premium rate numbers.