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In March 2011, central office code relief was implemented by adding area code 531 in an overlay to the same service area of 402. Although the first central office prefix in 531 was not assigned until February 2013, ten-digit dialing has been mandatory for all calls from the 402 territory since Spring 2011. [1]
The North American Numbering Plan (NANP) divides the territories of its members into geographic numbering plan areas (NPAs). Each NPA is identified by one or more numbering plan area codes (NPA codes, or area codes), consisting of three digits that are prefixed to each local telephone number having seven digits.
The North American Numbering Plan is based on a ten-digit telephone number assigned to each telephone in the telephone network. The number is composed of the three-digit numbering plan area code, a three-digit central office code, and a four-digit station or line number. Certain rules govern the numerical format of each part.
3. Report the message: Forward the suspicious text to 7726 (SPAM). Also, report it directly to the FTC at ReportFraud.ftc.gov. 4. Keep your information safe: Never click on links or provide ...
In North America ten-digit dialing is required in areas with overlay numbering plans, in which multiple area codes are assigned to the same area. The strict correlation of a telephone number to a geographical area has been broken by technical advances, such as local number portability in the North American Numbering Plan and voice over IP services.
Six-digit verification codes are a form of two-factor authentication, a process that helps keep your important online accounts secure. For example, you might get a text message or email with a six ...
9-10: TIM there are many legacy 9-digit numbers 361: 13 (3 10) TIM operator reserved (TACS legacy routing number) 362: 13 (3 10) TIM operator reserved (GSM/UMTS routing number) 363: 12 ("36" 10-digit MSISDN) TIM operator reserved (voice mail) 366: 10: TIM: 368: 9-10: TIM there are many legacy 9-digit numbers 370: 10: various Light MVNOs ...
Area code 603 in a 1956 map, covering the whole state.. Area code 603 is the sole area code for the U.S. state of New Hampshire in the North American Numbering Plan (NANP). It was created as one of the original 86 numbering plan areas in October 1947.