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Prefixes

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

00International dialling
01 and 02Geographic numbers with area codes - for list see telephone area codes
030Geographic rate numbers - used by public sector and not-for-profit bodies
033Geographic rate numbers - new allocations
034Geographic rate numbers - migrating numbers from matching 084 numbers
037Geographic rate numbers - migrating numbers from matching 087 numbers
055Corporate numbers
056Location independent electronic communications service (VoIP)
070Personal numbering service
071 to 075
077 to 079
Mobile services
076Radiopaging services
080Freephone numbers
(will become free calls from all mobile phones by 26 June 2015)
082Internet for schools
084Basic revenue share numbers
(Service Charge from 1p up to 7p/min or up to 7p/call)
087Higher rate revenue share numbers
(Service Charge from 1p up to 13p/min or up to 13p/call)
090 and 091Premium Rate Services (PRS) revenue share numbers
(Service Charge from 7p up to 3.60/min or up to 6/call)
0908, 0909, 098Sexual Entertainment Services (SES) revenue share at a premium rate
(Service Charge from 7p up to 3.60/min or up to 6/call)

Notes

  • Calls to 03 numbers are charged at the same rate as calling 01 and 02 numbers and count towards inclusive allowances on landlines and mobiles in the same way.
  • The 0500 range is used for some freephone services which were originally provided by Mercury Communications Ltd (now Cable & Wireless). Ofcom propose moving all 0500 numbers to either 0805 0 or 0808 5 in a three year transition period beginning mid-2014.
  • Calls to 070 Personal Numbers are not included in call plan allowances and cost substantially more than calling mobile numbers.
  • Individual mobile phone companies are allocated different ranges within the 071 to 075, 07624 and 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.
  • Calls to 080 freephone numbers are free from landlines and will also be free from mobile phones by 26 June 2015.
  • Many UK businesses employ numbers in the 03 and 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.
  • Revenue share was removed from 0870 numbers in 2009. Under Ofcom's "unbundled tariff" plans, revenue share will be re-applied to 0870 from 26 June 2015.
  • Numbers beginning 084, 087 (except 0870 from 1 August 2009 until 26 June 2015), 090, 091 and 098 impose a Service Charge on all callers, to the benefit of the called party. The caller pays an Access Charge to their own telephone provider as well as the Service Charge.
  • All users of 084, 087 and 09 numbers must declare the Service Charge wherever their number is advertised.
  • All telephone providers must advertise a single Access Charge per tariff covering all 084, 087 and 09 numbers beginning 26 June 2015.
  • Organisations that can no longer justify imposing a Service Charge on callers should move away from using 084, 087 and 09 numbers and replace them with 01, 02, 03 or 080 numbers.
  • Organisations that are prevented from imposing a Service Charge on callers by the provisions of Section 41 of the Consumer Contracts (Information, Cancellation and Additional Payments) Regulations 2013 (SI 2013/3134) must change to an 01, 02, 03 or 080 number by 12 June 2014.
  • The Cabinet Office issued guidance in December 2013 directing government departments and providers of public services to use 01, 02 and 03 numbers as their primary contact numbers, with 080 numbers considered for use only in particular circumstances where it is vital that the call is free for all callers.
  • All numbers within the 034 and 037 ranges are already reserved for users to directly migrate from the matching 084 and 087 numbers.
  • Where calls to 090, 091 and 098 numbers are subject to a per-minute rate Service Charge, there will be a cap of 25 per call.

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