They were specially designed for not-for-profit organisations, charities and public bodies to offer consumers a single point of contact nationally. The BBC, the Met Police, the RSPCA, Oxfam, Relate and Ofcom use 0300 numbers. They are also used by many government agencies and some regional councils.
0300 numbers are typically included in the call plans of all UK Fixed and Mobile phone companies, so your callers should pay nothing to call you.
To check the routing costs to a specific number, see our Call Price Calculator.
To prove your organisation complies with Ofcom 0300 eligibility rules please submit your application by clicking here.
This is the full telephone number as dialled from within the UK. The international format is: +44, with plus(+) representing the international prefix. This is typically 00 in Europe e.g. 00 44
See below for any patterns used to value this number