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
Telephone numbers in Hong Kong In May 2008, cellular phone numbers with '5' as the beginning were also introduced. Because of numerous phone scams cheating money, calls outside Hong Kong pretending to be a local number would now show the Hong Kong prefix +852 before the phone numbers. Telephone numbers in Hong Kong Telephone numbers in Hong Kong are mostly eight-digit. Fixed land line numbers start with 2 or 3, mobile (cellular) phone numbers with 5, 6 or 9, pager numbers with 7 and forwarding service with 8. Since the end of 1989, there have been no area codes within Hong Kong. The telephone number