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 UK Calling UK Calling is the name given to the legislation introduced by Ofcom in July 2015 to make the cost of calling UK service numbers clearer for everyone. The legislation was brought in due to the previous confusion surrounding service call charges, with the intention of making things simpler for the caller. The system also made Freephone numbers free to call from mobile phones, just as they are from landlines. UK Calling was the biggest change to UK telephone calls for over a decade. The information campaign that accompanied the changes was led by Ofcom, who worked alongside major