This identifier is a unique sequence of digits assigned to telephone lines within a specific geographic region. It comprises a three-digit code followed by a seven-digit number, enabling direct communication with individuals or businesses located in a designated area. As an example, 607-XXX-XXXX represents a telephone line in the Southern Tier of New York State. The first three digits pinpoint a specific area code.
Efficient telecommunications rely heavily on these numerical designations. They facilitate direct and reliable connections, which are critical for both personal and professional interaction. Historically, such numbering plans evolved to manage the growing demand for telephone services, ensuring clarity and organization within the telephone network. They allow for easy identification of where a call is coming from.