0300 Numbers Explained: The UK Number for Charities, Public Services & Non-Profits (2026)

By Andy Pickett · Managing Director

Published 17 April 2026 · About the author

If you’ve ever called a charity helpline, an NHS service, or a local council and noticed the number starts with 0300, that’s no coincidence. The 0300 range was created specifically for organisations that serve the public interest, giving them a professional national number that doesn’t cost callers more than a local call. This guide explains what 0300 numbers are, who can get one, what they cost, and how they compare to other non-geographic numbers.

What Is an 0300 Number?

An 0300 number is a UK non-geographic telephone number from the 03 range. Like 0333 and 0345 numbers, 0300 numbers are charged at the same rate as calling a geographic 01 or 02 number. The key difference is that 0300 numbers are restricted — they can only be used by qualifying public-sector bodies, registered charities, and not-for-profit organisations.

Ofcom introduced the 0300 range in 2007 to give the public and voluntary sectors a trusted, affordable phone number option. Before 0300, many charities and government bodies used 0845 or 0870 numbers, which were increasingly expensive for callers — creating a barrier for the very people these organisations were trying to help.

How Much Does It Cost to Call an 0300 Number?

Calling an 0300 number costs exactly the same as calling any standard UK geographic number (01 or 02):

• From a mobile with inclusive minutes: Free — 0300 calls use your bundled minutes
• From a mobile without inclusive minutes: Same per-minute rate as calling an 01/02 number
• From a UK landline: Included in most call packages, or charged at standard geographic rates

This is the core benefit of 0300 for charities and public services. Vulnerable people calling a charity helpline, or citizens calling a council service, won’t face unexpected charges. The number is effectively free for the vast majority of callers in 2026.

Who Can Use 0300 Numbers?

Unlike 0333 and 0345 numbers (which any business can use), 0300 numbers are restricted to specific types of organisations. To qualify, you must be one of the following:

• A registered charity — registered with the Charity Commission for England and Wales, the Scottish Charity Regulator (OSCR), or the Charity Commission for Northern Ireland
• A not-for-profit organisation — including community interest companies (CICs), mutual societies, and social enterprises that reinvest all profits
• A public-sector body — government departments, local authorities, NHS trusts, police forces, and other publicly funded organisations
• A mutual or friendly society registered under the Co-operative and Community Benefit Societies Act

Your telecoms provider is responsible for verifying eligibility before allocating an 0300 number. You’ll typically need to provide proof of registration (such as a Charity Commission number) when applying.

Which Organisations Use 0300 Numbers?

Many of the UK’s most important public-facing organisations use 0300 numbers:

• NHS 111 — the non-emergency health advice line
• HMRC — several tax helplines use 0300 numbers
• Action Fraud — the UK’s national reporting centre for fraud (0300 123 2040)
• Citizens Advice — the national advice service for consumer and legal issues
• Samaritans — the mental health and crisis charity (though they also use 116 123)
• Local councils — many have migrated main switchboard and service numbers to 0300
• The Information Commissioner’s Office (ICO) — for data protection queries
• Macmillan Cancer Support — their support line uses 0300

0300 vs 0333: What’s the Difference?

Both 0300 and 0333 numbers cost the same to call and are both included in mobile inclusive minutes. The differences are:

• Eligibility: 0300 is restricted to charities, non-profits, and public bodies. 0333 is available to any organisation
• Revenue sharing: Neither 0300 nor 0333 permits revenue sharing — the receiving organisation cannot earn money from inbound calls
• Public perception: 0300 carries an implicit signal that the organisation is non-commercial, which can build trust with callers
• Number supply: Fewer 0300 numbers are available compared to the 0333 range, as the pool is smaller

How to Get an 0300 Number

If your organisation qualifies, getting an 0300 number is straightforward:

• Choose a telecoms provider: VoIP and hosted phone system providers like Hypercloud can provision 0300 numbers as part of a cloud phone system
• Provide proof of eligibility: Your Charity Commission number, CIC registration, or public-sector status
• Select your number: Choose from available 0300 numbers, including memorable sequences where available
• Set up call routing: Direct calls to desk phones, mobiles, call queues, or an IVR auto-attendant

Plans with 0300 numbers from Connection Technologies start from £12 per user per month, with the same features available as any other hosted VoIP system — call recording, voicemail-to-email, call analytics, and more.

Frequently Asked Questions