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 Singapore plan and ensure smooth service continuity for their customers after the migration. There will be a parallel run of 7-digit and 8-digit numbers from 1 March 2002 to 31 March 2002. From 1 April 2002 to 30 June 2002, the 7-digit numbers will hear the change number announcement and after which calls will be disconnected, before re-dialing "6" again. Callers will be disconnected with service unavailable after the conversion. In March 2004, in response to the growing mobile phone numbering in Singapore, 8-digit mobile phone numbers with the number starting from "8" is introduced. Until 1995, calls to Malaysia from