A numerical prefix utilized within the North American Numbering Plan serves to identify a specific geographic region for telecommunications purposes. This three-digit identifier routes calls to the correct local exchange. For example, calls dialed to numbers beginning with this sequence are directed to subscribers within the designated service area.
Its implementation streamlines call routing, ensuring efficient connection of communications across different locales. It also enables the establishment of local telephone numbers within a newly designated or expanding community. The introduction of this code provides necessary resources for regional communication needs.