4.9 / 5 on Google
312+ verified reviews
10,000+ numbers available
Active in minutes
250,000+ numbers connected since 1998
No contracts · cancel anytime
Tier-1 BT / C&W network
Voicemail to email included

Public sector & non-profit

0300 numbers

0300 numbers are reserved for the public sector, charities and not-for-profit organisations. They tell every caller upfront they're dialling a non-commercial body, at the same call cost as a standard 01 / 02 number.

Same cost as 01 / 02 Sector-restricted prefix Active in hours
Restricted

0300 numbers

Eligibility checks apply (public sector, charity, not-for-profit). Talk to our team to get set up.

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Open to all

0345 / 0333 alternatives

Not eligible for 0300? The 03 family includes 0345 and 0333, open to any UK business.

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Why 0300

0300 uses and benefits

Built for public-sector trust

0300 signals upfront that you're a public-sector body, charity or not-for-profit. Calls cost the same as 01 / 02 numbers and are included in most caller bundles.

Measure what's working

Layer advanced call features on top, recording, queues, IVR, voicemail-to-email, and lean on our best-in-class call-stats to measure response and tune outreach.

Yours, no strings

Virtual numbers, no extra hardware, yours for life and movable between destinations any time. Per-second billing, free annual minutes, 30-day rolling contract.

Which plan?

Pick the plan that fits how you use 0300

01

Multiple campaigns, regions or direct-dial numbers? The Value plan covers multiple 03 numbers under a fixed monthly fee.

02

For 10 numbers or fewer, the Standard plan works well, free minutes per number plus a low out-of-bundle rate.

03

Need bespoke? Talk to our team, 25+ years of experience with charity and public-sector telephony. Free, impartial advice.

Need help?

Talk to a real UK person.

Organising connectivity for your business can feel daunting. Our UK team will help pull together the right numbers, call features and connections.

Average pickup

< 30s

UK-based team picking up fast. Talk to someone who knows the product.

0300 FAQs

0300 number FAQs

Common questions about 0300 number eligibility and use. Don't see yours? Let's talk.

Who can use an 0300 number?+

0300 numbers are restricted to the public sector, charities and not-for-profit organisations. We'll verify your eligibility before allocating a number, talk to our team to get started.

What does it cost to call an 0300 number?+

No more than a national-rate call to an 01 / 02 number, and counted toward inclusive minutes the same way. This applies from every kind of line.

What's the difference between 0300 and 0345 / 0333?+

All three are 03 numbers and cost the same to call. 0300 is reserved for non-commercial bodies; 0345 and 0333 are open to any UK organisation. The signal to your caller is different, 0300 reads as 'public sector / charity', the others as 'national business'.

Can I keep my existing 0300 number?+

Yes. We port 0300 numbers from most other UK providers. Start a port and we'll handle the paperwork end-to-end.

Can I have multiple 0300 numbers?+

Yes, many of our public-sector customers run several for different campaigns or services. The Value plan covers multiple numbers under a fixed monthly fee.

Bolt-ons

Helpful call-management features

Layer any of these on top of your number, one of the most comprehensive call-management suites in the UK.

View all call-management features

Never miss a call

Live telephone answering

From 86p / minute

One of our most popular features. Calls answered by expert UK call handlers, 24/7 - from a simple call mop-up for the ones you miss, through to a full reception and appointment-booking service.

Peace of mind that there's always someone at the end of your business line to catch your next big opportunity.

There's no contract, give it a go

24/7

UK call handlers

<30s

Avg. pickup

86p

From / minute

0

Contracts

On the move

Take your 0300 number anywhere

Mobile landline

Present your business number when you call out from your mobile.

  • No need to show your mobile to clients
  • Manage your business through one number
  • Add this feature when you pick your number
  • Ideal for users on the move
Find out more

MobeX app

Make and take calls through the Smart Numbers app on any device.

  • Run work and personal calls from one device
  • Single and multi-user options
  • Available alongside Smart Numbers VoIP
  • Ideal for home workers with good 4G
Find out more

Public sector / charity?

Get an 0300 number for your organisation

Talk to our team, we'll verify eligibility and get you live the same day where we can.

Quick and easy

3clicks

Pick a plan, pick a number, check out

No contract4.9 on Google