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 Germany not possible to determine unambiguously the end of a phone number from a prefix or the digits already dialed. This feature allows the extension of the length of phone numbers without revoking or changing existing numbers. Cell phone numbers in Germany are not given geographic area codes but non-geographic codes. Thus they can easily be told apart from other numbers. A new numbering plan was introduced on 3 May 2010. Since then new landline phone numbers have a standard length of 11 digits, which includes the area code but omits the trunk prefix of 0. Area codes remain as they