NXX definition

NXX or “Central Office Code" is the three-digit switch entity indicator that is defined by the fourth through sixth digits of a 10-digit telephone number within the NANP. Each NXX Code contains 10,000 station numbers.

NXX means the three-digit code, which appears as the first three digits of a seven-digit telephone number within a valid NPA or area code.

NXX. “NXX Code,” “COC,” “Central Office Code,” or “CO Code” is the three-digit switch entity indicator which is defined by the fourth, fifth and sixth digits of a 10-digit telephone number within NANP.

Examples of NXX in a sentence

• CLC shall designate one location for each Rate Center Area in which the CLC has established NXX code(s) as the Routing Point for the NPA-NXXs associated with that Rate Center Area, and such Routing Point shall be within the same LATA as the Rate Center Area but not necessarily within the Rate Center Area itself.

• Upon request by CLC , Frontier shall make available to CLC the following information to the extent that Frontier provides such information to its own business offices: a directory list of relevant NXX codes, directory and Customer Guide close dates, and Yellow Pages headings.

• If either Party uses its NXX Code to provide Foreign Exchange (FX) service to its customers outside of the geographic area assigned to such code, that Party shall be solely responsible to transport traffic between its Foreign Exchange service customers and such code’s geographic area.

• Frontier shall include all CLC NXX codes associated with the geographic areas to which each directory pertains, to the extent it does so for Frontier’s own NXX codes, in any lists of such codes that are contained in the general reference portion of each directory.

• CLC’s NXX codes shall appear in such lists in the same manner as Frontier’s NXX information.

More Definitions of NXX

NXX means the three-digit switch entity indicator that is defined by the “D”, “E”, and “F” digits of a 10-digit telephone number within the NANP. Each NXX contains 10,000 station numbers.

NXX means the fourth, fifth and sixth digits of a ten-digit telephone number.

NXX. NXX Code," or "End Office Code" means the three digit switch entity indicator (i.e. the first three digits of a seven digit telephone number).

NXX. “NXX Code”, “Central Office Code”, or “CO Code” is the 3-digit switch indicator that is defined by the D, E, and F digits of a 10-digit telephone number within the North American Numbering Plan. Each NXX Code contains 10,000 telephone numbers.

NXX or “Central Office Code” means the three (3)-digit switch entity indicator that is defined by the fourth (4th) through sixth (6th) digits of a ten (10)-digit telephone number within the NANP. Each NXX Code contains ten thousand (10,000) station numbers.

NXX refers to the first three digits of a telephone number, which identify the specific telephone company central office that serves that number.

NXX means the numerical code used by the Company to indicate a specific central office within an NPA.