UK telephone code misconceptions

Widespread UK telephone code misconceptions,in particular brought on by theBig Number Change in 2000,have been reported by regulatorOfcom since publication of a report it commissioned in 2004.

Due to the marked increase in demand for more and more telephone numbers to be available for allocation since the 1990s,the United Kingdom's telephone numbering system has been restructured several times on both a national and regional level,resulting in several modifications to the way British telephone numbers are written. As a consequence of these changes,millions of people who did not follow them have been left with a misunderstanding of how the system of area codes and local numbers operates.

The telephone area code for most ofGreater London and some surrounding areas is 020 . It is not "0207","0208" or "0203".^{[ 2 - All London telephone numbers have eight digits,most clearly expressed as two sets of four. The London number (020) 7222 1234 can be dialled as 7222 1234 from any other land-line whose area code is also 020 .}

A further study was commissioned in 2005 which found that only 13% of respondents correctly identified the 020 code for London without prompting: 59% incorrectly identified it as "0207" or "0208".^{[ 3 -}

Other affected area codes includeBristol,Cardiff,Coventry,Leeds,Leicester,Northern Ireland,Nottingham,Portsmouth,Reading,Sheffield andSouthampton.

A standardUnited Kingdom fixed telephone number (i.e. a landline,or geographical number,as opposed to amobile telephone number or special rate non-geographic fixed line) is divided into two parts,anSTD code (area code) and a local number. The STD code indicates the geographical area of the number,and is dialled before the local number. When dialling within the same area,the area code can be omitted.^{[ 4 - Some telephone service providers differentiate ordinary calling costs using the relevant area code(s).}

The area code plus local number can have varying total and composite digit lengths,for historical and operational reasons,but as a rule they do not exceed 11 digits in combined length. For readability,and to distinguish geographic location,telephone numbers are oftenspoken,displayed andpublished with a gap between the area code and local number,and/or with the area code in brackets. Problems occur for the reader when this spacing or formatting is incorrectly applied by the publisher.

Although London was re-united,people still frequently quote and write London numbers as if the city and surrounding suburbs were still split up into central and suburban areas by saying and writing "0207" and "0208".^{[ 6 - [ 7 - If the London number (020) 7222 1234 is incorrectly written as 0207 222 1234,and then dialled in full,the destination will be reached. However,it is incorrect to place the pause as shown,because if the local number is dialled from within London as if it is just 222 1234 - it will not be connected because it is missing the first digit (of eight digits). On the day of the changeover,one in three callers failed to correctly use eight-digit local dialling.[ 8 - [ 9 -}

Possible causes for the misunderstanding include the confusion created during the period from 1 June 1999 to 22 April 2000,where it was not possible to dial eight-digit local numbers; the fact that people had become very much accustomed to the audio rhythm of a four-digit area code (from hearing the old codes,"0171" and "0181" repeated previously); and that incorrectly formattedcaller ID data was transmitted for some time after the change. Also,many users are unaware that there is any local dialling procedure,probably because of the increasing popularity of mobile phones (from which the full national number must always be dialled).

Numerous examples of incorrectly formatted telephone numbers may still be seen in and around London,includingsignwriting on shopfronts and commercial vehicles,and in newspaper advertisements. The incorrectly-placed pauses are also heard in speech everywhere: in radio and television advertisements,and said by office workers misquoting their office numbers as "0207 ... ...." - unaware that this simply perpetuates the confusion.

While some clear publicity explaining the change was produced^{[ 10 - ,BT's directory-assistance service quoted the codes incorrectly and,until November 2009,their online phonebook still incorrectly showed "0207" and "0208" as "London Inner" and "London Outer" codes respectively.[ 11 -}

A 2005 television advertisement for the mobile telephony providerO₂ promoted a service that allows a user to select two area codes they can call for a reduced price; it also incorrectly showed 0207 and 0208 as different "area codes".

From June 2005 new local numbers in London have begun to be allocated with an initial "3" - for example,(020) 3222 1234 . Due to the lingering confusion,people unaware of the correct format are beginning to erroneously assume that there is now a new London code,"0203". Even some newspapers,both local and national,have given this misinformation.^{[ 12 - [ 13 - Some people report mis-dialling of London 3xxx xxxx numbers,where callers are dialling 0207 in front of the local number part instead of just 020. This call connects to the owner of a 73xx xxxx number instead of the expected person.}

The geographical significance of the "7" or "8" has been lost with regard to new number issues,so that,for example,some newly allocated numbers incentral London now begin with an "8".

Although the problem is most prevalent in London,similar misconceptions also affect other area codes which were created as a result of PhONEday and the Big Number Change.