Location | |
---|---|
Country | Singapore |
Continent | Asia |
Regulator | Infocomm Development Authority of Singapore |
Membership | 8243 1164 |
Type | closed |
NSN length | 8 |
Typical format | 8243 1164 |
Access codes | |
Country calling code | +65 |
International call prefix | 000, 001, 002, 008, 011, 013, 018, 019, 020, and 021 |
Trunk prefix | none |
List of Singapore dialing codes |
The Singapore telephone numbering plan, also known as the National Numbering Plan, is regulated by the Numbering Management Department of the Infocomm Development Authority of Singapore (IDA), taking over the role from the Telecommunications Authority of Singapore upon its formation in December 1999.
Due to the small geographical size of Singapore, there are no area or trunk codes, with the Public Switched Telephone Network, Radio Network and IP Telephony all belonging to one numbering area, and thus comes in the same 8-digit numbering format. Numbers are categorised based on the first digit, thus providing ten possible categories, of which six are currently in use and the remaining four reserved for future usage.
Until 1985, subscribers' telephone numbers in Singapore were five and six digits, 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 mobile phone and pager numbers, making numbers eight digits, and on 1 March 2002, the digit '6' was added to the front of existing fixed line telephone numbers.
This is the list of telephone exchanges in Singapore. They also share the telephone exchanges with OpenNet locations, cable TV and '6'-regoed phone lines (each from SingTel and StarHub).
3xxx xxxx - Voice-over-IP (VoIP) services
6xxx xxxx - Fixed line services inclusive of fixed line voice-over-IP services (e.g., StarHub Digital Voice and SingTel mio Voice)
8zxx xxxx - Mobile phone services
9yxx xxxx - Mobile phone services (inclusive of pager services until May 2012)
800 xxx xxxx - Toll-free international services
1800 xxx xxxx - Toll-free line services
1900 xxx xxxx - Premium service