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.
Our Available 0333 Phone Numbers
Below is a list of our available 0333 phone numbers that are available to purchase. If you don’t want a selected number simple click on the Allocate me a number and we will build you the next available 0333 number.
0333 XXXX XXX
Any 0333 Number
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
How It Works - 3 Simple Steps
Choose your 0333 number (ask about memorable patterns)
Point it anywhere - landline, mobile, call centre, SIP trunk or international
Configure features - IVR, schedules, failover, call recording
Go live the same day (orders completed before 2pm UK time)
Frequently Asked Questions About 0333 Phone Numbers
Once you have placed your order with us for a UIFN we approach each country you need the service live in and request them to build the number on their network. The data build for this varies for each country but we continue to push the local carriers for this work to be completed as soon as possible. Once the number has been built in country, we are able to forward the inbound calls to your existing office location anywhere in the world. You can select a different termination number for each country so that you can overcome any language barriers.
UIFN number format is +800 xxxx xxxx, the caller will need to enter the country exit code followed by the number, for example in the UK you would dial 00800 xxxx xxxx and from Australia the caller would dial 0011800 xxxx xxxx
We often keep UIFN’s in stock available for immediate release. Please contact us on +44 (0)207 3055 999 if you would like to know about our current availability.
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