Telephone numbers in Singapore digits. Five digits were introduced in 1960s, whereas 5-digit and 6-digit phone numbers were introduced in 1960s as fixed lines grew, but in that year, these changed to seven digits as the introduction of new towns arose (Tampines, Jurong East, Bukit Batok, Yishun and Hougang) and a large number of new numbers were required. Rationalisation was based on geographical locale over the 12 years. In 1995, the digit '9' was added to the front of mobiland pager numbers, making numbers eight digits, and on 1 March 2002, the digit '6' was added to the front of existing fixed line telephone
UK Calling organisations using non-geographic service numbers were advised to be aware of the changes, and to amend relevant advertising materials where necessary. All applicable organisations were urged to find out the service charge for their numbers and then, if happy with this charge, ensure to display it wherever their number is shown or promoted. Ofcom recommended that the following wording should be displayed alongside the number: "“Calls cost xp [or xp per minute] plus your phone company's access charge.”" Before the changes came into effect, Ofcom distributed leaflets across the UK to explain what was to happen. These leaflets stated when