This numerical designation serves as a geographical identifier for telephone numbers within a specific region. As an example, calls originating from or directed to numbers sharing this designator are typically associated with that defined area. It is a three-digit code that precedes the seven-digit telephone number.
Its existence facilitates efficient call routing by telecommunication networks. Its implementation offers residents and businesses a sense of local identity, fostering community ties. Historically, these codes were established to manage the increasing demand for telephone lines and to streamline the infrastructure required for long-distance communication.