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There are national telephone services which have phone numbers in the format of 1XX or 1XXX, without any area code. For example, 114 is for telephone yellow page, 119 is for fire/emergency number, 112 is for police station center, 131 is for weather forecast information, 1333 is for traffic information, and so on.
Area code 201 was the original, sole area code for New Jersey in 1947, when the American Telephone and Telegraph Company (AT&T) devised the first continental telephone numbering plan. It was also the first area code assigned in the numbering plan.
IDDD was implemented through extensive modifications in the switching systems to accommodate the international open numbering plan with seven to twelve digits in the national telephone numbers. [53] Access to the international network is facilitated by the dialing prefix 011, after which the country code and the national telephone number are ...
Under this plan, the New Jersey telephone number (609) 555-0175 would become (6909) 555-0175. The permissive dialing period where detecting the 9 as the second digit (to expect 11 numbers) would eventually have an end date, and then new NPAs with a second digit other than 9 could be assigned, effectively multiplying the number of NPAs by ten.
Seven-digit dialing is a telephone dialing procedure customary in some territories of the North American Numbering Plan (NANP) for dialing telephone numbers in the same numbering plan area (NPA). NANP telephone numbers consist of ten digits, of which the leading three are the area code. In seven-digit dialing it is not necessary to dial the ...
N11-numbers provide access to special services. For example, This US road sign reminds drivers and passengers about 5-1-1 service. 211: Community services and information; 311: Municipal government services, non-emergency number; 411: Directory assistance; 511: Traffic information or police non-emergency services
It is the practice of including the area code of a telephone number when dialing to initiate a telephone call. When necessary, the ten-digit number may be prefixed with the trunk code 1 , which is referred to as 1+10-digit dialing or national format .
Australian films and television shows do not employ any recurring format for fictional telephone numbers; any number quoted in such media may be used by a real subscriber. The 555 code is used in the Balmain area of Sydney and the suburbs of Melbourne. Although in many areas being a prefix of 55 plus the thousand digit of 5 (e.g. 55 5XXX ...