791b4208_d_travel_operators___Telegraph__How_much_they_currently_cost
[Phone number prefixes] 01/02 geographic numbers - these numbers relate to specific locations in the UK and are used for homes and businesses [How much they currently cost] 
Landlines: up to 10p per minute; calls from mobiles typically cost between 10p and 40p per minute
Premium rate phone lines ban for retailers and travel operators - Telegraph
How much they currently cost