PhONEday was a change to telephone numbering in the United Kingdom on Sunday 16 April 1995. A shortage of unique telephone numbers in the old dialling system meant that it was becoming increasingly difficult in certain areas of the country to assign unique numbers to new subscribers. To counteract this, dialling codes starting with 0 were changed to start with 01. In Bristol, Leeds, Leicester, Nottingham and Sheffield, the existing area codes, which were 5 digits in length, were instead entirely replaced with new codes comprising 4 digits, to increase the amount of possible numbers by a factor of ten. The changes made possible the ability to provision new numbers in each of these five cities. It also had the effect of assigning all geographic landline telephone numbers into one range of numbers starting with 01, allowing for further changes to be made at the Big Number Change in 2000. A £16m advertising campaign, and an eight-month parallel period during which both old and new codes were active, preceded the change.[1] PhONEday followed a change made in May 1990, when the old London area code 01 was released from use, permitting all United Kingdom geographic numbers to begin with this prefix. Originally planned in 1991 to take place in 1994,[2] in 1992 the change was postponed until the Easter Sunday bank holiday in 1995.[2]
The PhONEday changes also released space for new geographic area codes beginning 02, which would come into use as part of the Big Number Change in 2000. The changes also allowed 10-digit numbers beginning 07, 08 and 09 to be used for mobile, non-geographic and premium-rate services, from 1997 onwards, with all remaining 9-digit mobile, non-geographic and premium-rate numbers from 02 to 09 being converted to 10 digits and moved into the 07, 08 and 09 prefixes in 2001.
^Whitfield, Martin (1995-04-15). "BT braced for wrong-number barrage on Phoneday". The Independent. Archived from the original on 2022-05-26. Retrieved 2012-09-25.
^ ab"A brief history of recent UK telecoms and Oftel". Ofcom. 1999. Retrieved 7 January 2014.
PhONEday was a change to telephone numbering in the United Kingdom on Sunday 16 April 1995. A shortage of unique telephone numbers in the old dialling...
Older pre-PhONEday nine-digit 0500 numbers were left as nine-digit numbers after PhONEday. No new 0500 number ranges were released after PhONEday. Older...
01700 to 01709 on PhONEday. New 070 personal number allocations had to be chosen carefully such that mis-dialled calls for old pre-PhONEday geographic numbers...
part of the Big Number Change in 2000. Area code changed as a part of phONEday in 1995. Area code changed in 1990. (023) Wide area. Southampton numbers...
number of available codes for new services was quickly dwindling. In 1995, PhONEday partially addressed this by altering all geographic area codes to begin...
code. This area code split doubled the potential capacity. In 1995, on "PhONEday", the codes changed again, to 0171 and 0181. The split into two area codes...
across the UK for future use, on Easter Sunday, 16 April 1995 (dubbed "PhONEday"), an extra digit "1" was inserted after the initial zero into all except...
0113, Nottingham; 0115, Leicester; 0116 and Bristol; 0117), as part of PhONEday. All subscriber numbers within the area code consist of seven digits. The...
the national dialling code for Weybridge in the United Kingdom. Before PhONEday, the area code was 0932. The mnemonic for 0932 corresponds with WE 2, where...
the national dialling code for Redditch in the United Kingdom. Before PhONEday the area code was 0527. The mnemonic for 0527 corresponds with LA 7 where...
area. After a sequence of changes in the early 1990s, culminating with PhONEday, the current 01708 code became active on 16 April 1995. All subscriber...
two STD codes (071 and 081). It was later changed to 0191 as a part of PhONEday. Although it had no letter mnemonic officially ascribed to the 9 (due to...
the city of Newport and surrounding areas in the United Kingdom. Before PhONEday the area code was 0633, which was originally dialled as "0NE3" where the...
31, is executed in Georgia for a murder committed in 1983. 16 April – PhONEday changes all telephone area dialing codes UK-wide. 4 May – The Conservative...
to be introduced and included information about the new call charges. PhONEday Big Number Change "UK Calling". Ofcom. "Calls to 0800 numbers now free...
code changed from 0483 to 01483 along with most areacodes in the UK on Phoneday. On 14 December 1993, an explosion on the railway lines between Woking...
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