03 numbers are becoming increasingly popular in the UK. They are generally currently being used by large, corporate organisations. They are also being increasingly used by government organisations, such as hospitals. These numbers are classified as being non-geographic. This means that you are unable to identify the location of the telephone line that the call is being made to and from. These telephone numbers were designed to offer a better deal to consumers. They cost the same as if you are dialling a national rate, geographical telephone number.
Cost to call 0370 numbers on O2 mobile
If you are using your O2 pay monthly phone to make a call to a 0370 telephone number it would not cost anything addition to you making a call to a 02 or 01 number. Providing you have included minutes left in the monthly deal that you are on with 02 there would not be anything additional to pay when calling 0370 numbers.
