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Until 1985, subscribers' telephone numbers in Singapore were five and six 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.
South Africa switched to a closed numbering system effective 16 January 2007. At that time, it became mandatory to dial the full 10-digit telephone number, including the zero in the three-digit area code, for local calls (e.g., 011 must be dialed from within Johannesburg).
Z=2 and 3 means a landline number; the YX code is 1 (with extra digit for local number) for Bucharest, from 30 to 69 for a county code, and 70 to 79 for non-geographic landline numbers; Z =7 (and possibly 6 in the future) means a mobile number; 070p-xxxxxx numbers are reserved for virtual operators, while 071p-xxxxxx to 079p-xxxxxx are reserved ...
Land line phone numbers in Vietnam follow the format Area Code + Phone Number. The area codes depend on the province and/or city. To dial a number within the same province or city, only the phone number needs to be dialed. When dialing from a different province/city or from a mobile phone, follow the format 0 + Area Code + Phone Number.
As with other numeral systems, the hexadecimal system can be used to represent rational numbers, although repeating expansions are common since sixteen (10 16) has only a single prime factor: two. For any base, 0.1 (or "1/10") is always equivalent to one divided by the representation of that base value in its own number system.
Landline numbers begin with: [1] 01 Al Karama (Canceled) 02 Abu Dhabi; 03 Al Ain; 04 Dubai; 05 mobile number; 06 Sharjah, Ajman and Umm al-Quwain; 07 Ras Al Khaimah; 08 Western Region (Liwa, etc.) 09 Fujairah; Mobile numbers begin with: 050 cell phones ; 052 cell phones ; 054 cell phones (Recently released for public use.) 055 cell phones
An emergency phone on the Welsh coast at Trefor featuring 999. (Note the keypad missing digits 4 - 0, with no instruction on how to dial 999 from this phone.) 999 is the official emergency number for the United Kingdom, but calls are also accepted on the European Union emergency number, 112.
Area codes for mobile numbers begin with 6, corporate or state institution numbers with 7, toll-free, reverse-charge and shared-cost numbers with 8, and premium-rate numbers with 9. [1] Network services numbers begin with "1", dialed without a prefix. This includes numbers beginning with "11", reserved for emergency and special services, such as: