0303 Prefix: UK-wide numbers (03)
Numbers starting with 0303 are UK-wide numbers (03). UK-wide numbers that are not tied to an area. They cost the same as calling an 01 or 02 number and count towards inclusive minutes. Banks, government departments, charities and large companies use them a lot.
0303 numbers reported on Who Calls You
- 0303 330 1775 Non-geographic · 0 reports No reports yet
- 0303 330 1727 Non-geographic · 0 reports No reports yet
- 0303 330 7052 Non-geographic · 0 reports No reports yet
- 0303 330 7042 Non-geographic · 0 reports No reports yet
- 0303 330 7041 Non-geographic · 0 reports No reports yet
What does the 0303 prefix mean?
The prefix is the first digits of a phone number. In the UK it tells you what kind of number it is and how much a call back costs. UK-wide numbers that are not tied to an area. They cost the same as calling an 01 or 02 number and count towards inclusive minutes. Banks, government departments, charities and large companies use them a lot.
Who uses 0303 numbers?
0303 numbers are not linked to a town, so they are popular with companies that want one number for the whole country: call centres, banks, utilities, delivery firms and online services. The same features make them attractive to sales callers and scammers, so check the reports before calling back.
Phone companies with 0303 prefix numbers
Ofcom has allocated 61 blocks of 0303 prefix numbers to many companies, the oldest allocation still active dating from 2007. The companies holding the most blocks:
- BT 25 blocks
- Colt Technology Services 5 blocks
- Gamma Telecom Holdings Limited 4 blocks
- Telecoms World Direct Limited 2 blocks
- GCI Network Solutions Limited 2 blocks
- Windsor Telecom Limited 2 blocks
- Nextec UK Limited 1 block
- X-on Health Limited 1 block
- Atomstream Limited 1 block
- Served Up Limited 1 block
A range holder is the company Ofcom gave the numbers to. Many pass numbers on to businesses and internet phone services, so the holder is often not the caller. Source: Ofcom numbering data.