Last Updated on March 23, 2025
When it comes to choosing a business phone number for your organisation, the options can feel overwhelming.
From local numbers to premium-rate lines, each type of number serves a specific purpose. But what about 0300 numbers?
These numbers are often associated with charities, government agencies, and public bodies, but what exactly are they, and how do they work?
In this guide, we’ll break down everything you need to know about 0300 numbers, including their uses, costs, and who can benefit from them.
Plus, we’ll explore alternative options like 0330 numbers and how to get your own 0330 virtual number with Air Landline with a free trial and 30-day money-back guarantee.
What Are 0300 Phone Numbers?
0300 numbers are non-geographic telephone numbers introduced in the UK in 2007.
They are part of the 03 number range, which was created to provide an affordable and accessible way for organisations to communicate with the public.
Unlike premium-rate numbers (e.g., 09 numbers), calls to 0300 numbers are charged at the same rate as standard landline calls, making them a customer-friendly option.
These numbers are regulated by Ofcom, the UK’s communications regulator, ensuring they are used ethically and transparently.
What Are They Used For?
0300 numbers were primarily used by charities, non-profit organisations, government agencies and public bodies to provide a low-cost way for customers to get in touch.
Government agencies used them to offer a consistent and recognisable point of contact for public services, and public bodies such as NHS services, local councils, and educational institutions used them as a trusted phone number for people to call all across the UK.

Whilst UK companies cannot use this prefix without being a charity, public body or communications company, there are other similar prefixes like 0330 that are national numbers that can be obtained through Air Landline with a 7 day free trial.
Are 0300 Numbers Free to Call?
While 0300 numbers are not free to call, they are charged at the same rate as standard landline calls.
This means they are included in most inclusive minutes packages for both mobile and landline users. However, costs can vary depending on the caller’s network and tariff.
Here’s a breakdown of the costs to call a 0300 number from different providers:
Cost to Call a 0300 Number on EE
Calls to 0300 numbers are usually included in EE’s inclusive minutes.
If you’re outside your allowance, you’ll typically pay a standard landline rate of around 25p per minute.
Cost to Call a 0300 Number on O2
O2 includes 0300 numbers in its inclusive minutes packages. Outside of these packages, calls are charged at standard landline rates, usually around 35p per minute.
Cost to Call a 0300 Number on Vodafone
Vodafone also includes 0300 numbers in its inclusive minutes. If you’re outside your allowance, expect to pay around 55p per minute.
Cost to Call a 0300 Number on Three
Three includes 0300 numbers in its inclusive minutes. Outside of these packages, calls are charged at around 31p per minute.
Are 0300 Numbers Free to Call on a Landline?
Most landline providers include 0300 numbers in their inclusive minutes.
If you’re outside your allowance, calls are typically charged at standard landline rates, usually around 15p per minute.
Who Uses 0300 Numbers in the UK?
0300 numbers are widely used by organisations that prioritise accessibility and transparency.
Here’s a closer look at who uses them:
Charities and Non-Profit Organisations
Charities like the British Red Cross and Cancer Research UK use 0300 numbers to provide a low-cost way for donors, volunteers, and beneficiaries to get in touch.
Government Agencies
Many government departments and public services use 0300 numbers to offer a consistent and recognisable point of contact.
For example, HMRC and the Department for Work and Pensions (DWP) use 0300 numbers.

Public Bodies
Public bodies such as the NHS, local councils, and universities often use 0300 numbers to ensure their services are accessible to everyone.
Can UK Companies Use 0300 Numbers?
No, 0300 numbers are reserved for non-profit organisations, government agencies, and public bodies.
UK companies cannot use 0300 numbers, but they can opt for other non-geographic numbers like 0330 or 0345.
Benefits and Disadvantages of 0300 Telephone Numbers
Advantages
- Customer-Friendly: Calls to 0300 numbers are charged at standard landline rates, making them affordable for callers.
- Professional Image: 0300 numbers convey trust and legitimacy, which is especially important for charities and public services.
- Regulated by Ofcom: This ensures transparency and ethical use, boosting caller confidence.
Disadvantages
- Limited Availability: Only non-profit organisations, government agencies, and public bodies can use 0300 numbers.
- Not Free to Call: While affordable, 0300 numbers are not free, which may deter some callers.
- Geographical Flexibility: Unlike virtual numbers, 0300 numbers are tied to specific organisations and cannot be used by businesses.
Other 03 Numbers
If 0300 numbers aren’t suitable for your needs, there are other 03 numbers to consider:
0330 Numbers
0330 numbers are non-geographic numbers available to businesses and individuals.
They offer the same customer-friendly rates as 0300 numbers and are a great alternative for companies looking to establish a national presence.
0333 Numbers
The 0333 numbers are another non-geographic option, often used by larger organisations for customer service lines.
They are charged at standard landline rates and provide a professional image.
0345 Numbers
0345 numbers were introduced to replace older 0845 numbers.
They are charged at standard landline rates and are often used by businesses and public services.
Frequently Asked Questions
However, we offer 0330 numbers – a fantastic alternative for businesses looking for a cost-effective and professional solution.
We offer a completely free 7-day trial and even have a money-back guarantee.
This ensures a seamless transition to our services without disrupting your business communications.
Simply contact our team, and we’ll handle the process for you.
Summary – 0330 Numbers
While 0300 numbers are a great option for charities and public bodies, businesses looking for a professional and cost-effective solution should consider 0330 numbers.
At Air Landline, we make it easy to get started with a virtual 0330 number, complete with advanced features and flexible pricing.
Sign up for Air Landline’s 7-day free trial today and experience the benefits of a national phone number for just £9.99 + VAT per month.