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A FEW IMPORTANT DATES IN THE HISTORY OF UK TELECOMMUNICATIONS

1959 Pay-On-Answer Coinboxes

The first versions of the Pay-On-Answer Coinbox were introduced as a replacement for the old button A & B models. They were necessary following the introduction of STD in major towns, because the old coinboxes could not cope with automatically connected trunk calls.

1966 All Figure Numbering

All Figure Numbering (AFN) was introduced in 1966, starting in the Director Areas of London, Birmingham, Edinburgh, Glasgow, Liverpool and Manchester.

19 November 1981 - New Style Sockets

New style telephone plugs and sockets were introduced, enabling convenient movement and replacement of telephones and customer equipment.


06 May 1990 - New London Codes

Inner London codes were changed from 01 to 071 and outer London codes were changed from 01 to 081. This was the biggest change to the London telephone numbering scheme since All Figure Dialling was introduced back in 1966. This was the first of the changes to free up more telephone numbers to meet increased demand.

09 March 1994 - Peak Rates Abolished

Peak rates were abolished for using the telephone during the morning. For the first time since 1970 callers were able to make calls during the morning without having to pay a premium.

22 November 1994 - Caller Display Introduced

The ability to see the telephone number of the person who is calling you. Either by a caller display unit or telephone, or by using the 1471 service. The service was originally set to be introduced on 5th November but was delayed until 22 November because of privacy concerns.

16 April 1995 PhONEday - extra 1 added

The second change of telephone codes saw the introduction of an extra 1 after the initial zero in all UK area codes, e.g. Birmingham changed from 021 to 0121, Lichfield changed from 0543 to 01543. In addition Leeds, Sheffield, Nottingham, Leicester & Bristol had their codes completely changed to numbers 0113 to 0117. The international access code was also changed from 010 to 00.

22 April 2000 - The Big Number
The third main change of telephone codes saw the introduction of an extra 7 in mobile numbers as well as new codes for several cities. London codes were changed from 0171/0181 to 020, Portsmouth 01705 and Southampton 01703 both to 023, Coventry from 01203 to 024, Cardiff from 01222 to 029 and Belfast and Northern Ireland codes were all changed to 028. Local and National rate codes were all rationalised to begin with 08. Further details.
   

More information to be added in the future


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