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 Montenegro prefix is omitted when calling from abroad. The following code prefixes are used for network groups. The old codes were used in parallel with the new codes until 1 October 2008: VoIP – Area code 78 The following special telephone numbers are valid across the country: Telephone numbers in Montenegro This is a list of dialing codes by town in Montenegro. Until Montenegro gained independence from Serbia and Montenegro, the nation was accessed through the international dialing code +381. The new dialing code +382 was introduced after independence and the two codes were used in parallel until February 2007, when