03 numbers have been introduced to improve consumer trust and confidence in UK phone numbers. 0300 and 0303 numbers are specifically for use by UK Charities
03 phone numbers are trusted by the public
They cost exactly the same to call as standard 01 and 02 landline numbers, even from a mobile phone. This means they are ethical phone numbers and are not subject to any negative publicity (such as 0870 numbers).
03 numbers are mobile phone friendly
44.5% of all UK calls are now made from mobiles according to Ofcom. Because 03 numbers are also included in mobile phone users' free minute packages, callers can dial your charity for free and make a donation.
03 numbers help charities to deal with their calls better
Your charity can improve call handling and staffing levels by using our free online call statistics. You can also monitor the success of fundraising campaigns.
Charities can phase in 03 numbers as they wish
03 numbers work in tandem with your existing landline or mobile numbers. They simply 'sit on top of' and are directed to your chosen 'destination number', allowing you to use and integrate them as you wish at a time that is convenient to them.
0300 numbers are for use by charities
0300 and 0303 numbers can only be used by charities and public bodies. This means that callers can instantly recognise the type of organisation they are calling by the 030 dialing code.
Many charities and not-for-profit organisations are now taking advantage of the power of 03 numbers. Users include Comic Relief, The British Heart Foundation, Oxfam, RSPCA, Children in Need and the SSPCA.


















