03 numbers are UK-wide telephone numbers regulated by Ofcom to be charged at the same rate as geographic (01/02) calls. They are not tied to any specific UK area, making them ideal for national businesses, charities, and public-sector organisations that want a single national number without the higher costs associated with 08x numbers.
Because 03 numbers are charged at the geographic rate, they are included in virtually all UK mobile and landline inclusive minute bundles — meaning most callers pay nothing extra. This makes them highly caller-friendly and a popular choice for organisations that want to encourage inbound contact without deterring callers with unfamiliar-looking numbers.
DIDcomms 03 numbers are available with instant activation, per-minute billing, and no setup fee. Choose from 030 numbers (commonly used by public sector and charities) or 033 numbers (used by commercial businesses and national organisations). Forward calls to any UK mobile, landline, or SIP endpoint.