0333 Numbers for UK Businesses & Organisations

A fair, UK-wide number that’s included in callers’ minutes. 03 numbers were created so organisations can use one national contact number without callers paying more than a standard geographic call. They’re charged like 01/02 and included in bundled minutes.

What is a 0333 number?

0333 sits within the UK “03” non-geographic range. “03” numbers are UK-wide (not tied to any location) and, by Ofcom rule, must be priced the same as geographic 01/02 and must count towards inclusive minutes on landline and mobile plans. Revenue sharing isn’t permitted on 03.

Who can buy 0333 numbers?

Anyone. Ofcom’s allocation shows the 0330 and 0333 sub-ranges are open to any organisation or end user. (By contrast, 0300 numbers are reserved for public sector & not-for-profit; 034/037 are typically used when moving from matching 084/087 numbers.)

Good to know: If you’re a charity or public body looking for a “trusted” public-service signal, an 0300 number may be a better fit; if you’re migrating from 0845/0870, you’ll usually want the matching 0345/0370.

How much does it cost to call a 0333 number?

· Price rule: Calls to 03 must cost no more than 01/02 and must be included in allowances on the same basis. No service charge / revenue share applies on 03.

· Major networks treat 01/02/03 the same in bundles:

o EE: plan minutes can be used to call 01/02/03 numbers (Channel Islands/Isle of Man excluded).

o O2 (Business): 03 costs the same as 01/02 and is included in inclusive/free minutes on O2 tariffs.

o Vodafone: plans include calls to standard UK landlines (01/02/03); out-of-allowance rates then apply.

· Outside your allowance: Government guidance puts typical out-of-bundle call rates for 03 at up to ~16p/min from landlines and ~3p–65p/min from mobiles, depending on tariff. Always check your plan.

Same-day setup (order before 2pm UK time)

· Order & verify before 2pm UK time and go live the same day

· Route instantly to a landline, mobile or SIP/VoIP target

· No engineer visit, everything configured remotely

· Route overseas once we validate your request

Why choose a 0333 number with us?

· Caller-friendly — aligns to Ofcom’s consumer-friendly 03 rules (standard rate, included in minutes)

· National presence — one memorable number for the whole UK

· Flexible call handling — IVR menus, time-of-day routing, hunt groups, call recording, voicemail-to-email, disaster recovery

· Analytics — track volumes, answer rates and campaign performance in real time

· Easy migration — keep your routing as you grow; porting support available