Prefixes

Below is a list of prefixes used with UK telephone numbers (see also Special Numbers).

00	International dialing
01 and 02	Area codes/geographic numbers - for list see telephone area codes
030	Geographic rate numbers - used by public sector bodies and not-for-profit bodies.
033	Geographic rate numbers
034	Geographic rate numbers - migrating numbers from matching 084 numbers
037	Geographic rate numbers - migrating numbers from matching 087 numbers
055	Corporate numbers
056	Location independent electronic communications service (VoIP)
070	Personal numbering service
076	Radiopaging services
071 to 075 077 to 079	Mobile services
080	Free numbers (but not usually for calls from a mobile phone)
082	Internet for schools
0843 and 0844	Basic (local) rate numbers
0845	Basic (local) rate numbers
0870	Higher (national) rate numbers
0871, 0872 and 0873	Higher (national) rate numbers
090 and 091	Premium rate numbers - costs vary and can be as high as £1.50 a minute
098	Sexual entertainment services at a premium rate

Notes

• The 0500 range is used for some freephone services which were originally provided by Mercury Communications Ltd (now Cable & Wireless).
• Individual mobile phone companies are allocated different ranges within the 077 to 079 bands, but since the advent of mobile number portability, mobile prefixes can no longer be relied on to determine the current operator of a particular mobile number - only the original operator.
• Many UK businesses employ numbers in the 08 range because of the benefits they can provide, such as fax to email and virtual office applications. Also they are portable and don't depend on the business location.

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