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
History of telephone numbers in the United Kingdom London would have a total of three. It would be a decade before this inner/outer London split was eventually nullified. Consumers were already becoming confused as to what they would be charged for any particular call, with for example (0404) xxxxx being a call to Honiton in Devon and (0403) xxxxxx being a much more expensive call to a mobile phone. The situation in the early 1990s was as follows: The next few changes would fix these problems. The longest telephone numbers in use until now had been 9 digits long (not including the 0 trunk code), e.g. 051 234