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0300 Numbers

0300 numbers are UK wide national numbers specifically for use by public sector bodies and not-for-profit bodies such as registered charities. All other types of business, such as sole traders, partnerships and limited companies should view our 0333 numbers.

0300 numbers were introduced by Ofcom as an alternative number for organisations, who wish to offer their consumers a single, trusted point of contact.

The cost of calling 0300 numbers is the same as calling a standard landline number, be it from a landline or mobile. Callers that have free inclusive call minutes to landlines would also usually have calls to 0300 numbers included in their bundles, potentially meaning that callers can call you for free, even from their mobile.

Using an 0300 number for your inbound calls gives you the flexibility to control instantly online how and when you receive your calls whilst giving your callers a cost effective way of calling you.

If you are looking to buy an 0300 number, we have a market leading tariff of just £14.99 a month with unlimited free diversion to your landline, mobile or both. For one flat monthly charge, you can relax knowing that the call diversion costs won’t run away with itself – giving you and your organisation peace of mind.

Flexible tariffs with no minimum term...

£0.99* per month£14.99 per month
Inclusive landline & mobile diversion minutes 2500Unlimited
Landline rate per minute (after inclusive) 1p0p
Mobile rate per minute (after inclusive) 2p0p
Cost to the caller from a BT landline per minute Landline rateLandline rate

*£0.99 for the first 3 months on new numbers, then £4.99 per month thereafter.

The above mobile diversion rates apply to mobile numbers originally issued by:
O2, Vodafone, Orange, T-Mobile, EE, Virgin Mobile, Three, Tesco Mobile, Sky Mobile and Lycamobile.
All prices quoted exclude VAT.

When you buy a 0300 number from Tamar Telecommunications, you will benefit from per second billing (we don’t round up calls to the nearest minute), no minimum call charge or call setup fee, no minimum term (only 1 month notice required to cancel), plus over 10 free call features including a free mobile app.

Please note:
0300 numbers are specifically for use by public sector bodies and not-for-profit bodies such as registered charities.

As a communication provider, we have to assess orders to ensure that the organisation is eligible under Ofcom’s regulations on the use of 0300 numbers. If you are not eligible, please visit our 0333 number page to order a 03 number for your business.

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Kalnet4u Ltd. T/A: Tamar Telecommunications. Registered in England – Reg No 04655311. Registered Office: 19 Research Way, Derriford, Plymouth, PL6 8BT