By switching from 0870 numbers to 03 numbers the BBC is signalling its intent.

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The British broadcaster is now favouring the 0370 numbers not the 0870 numbers used in the past. This means that people can now contact these new numbers for the same cost as a standard landline (starting 01 or 02) even from a mobile phone. 03 numbers are also included in the free minutes allocations offered by mobile and landline providers, meaning that listeners and viewers can even contact their favourite show for free.