UK-wide 0330 numbers are an alternative to chargeable 08 numbers, such as 0870.
0330 numbers allow businesses to have one single national number, allowing their customers to get in touch, no matter where they are located.
The cost of calls to 0330 numbers is the same as 01 or 02 numbers and is often included in the same way as UK geographic numbers in mobile/landline call packages
These rules are applicable to calls from any type of line including all fixed lines, mobile and payphone.