O2 is the last UK operator to exclude the numbers and began enforcing the new policy to new customers in April. The latest announcement means that both existing subscribers and new customers can no longer call make calls to the numbers within their inclusive minutes.
Calls to O2 customer services and telephone helpline association are the only exceptions to the groups new charging policy.
A spokesperson for O2 said: O2 constantly reviews its tariffs to make sure that they offer the best value to the most customers. We regularly introduce new services and benefits to make sure that O2 remains competitive.
Unlike many of our competitors, our customers have enjoyed five years of being able to call non-geographic numbers from within their inclusive bundle. From time to time we make changes to our call plans to ensure that our charges are fair for the most people. Overall these changes are giving better value to our customers.