A sequence of digits assigned to a specific telecommunication endpoint, enabling communication between devices on a telephone network. As an example, the combination serves as a unique identifier allowing a caller to reach a particular subscriber connected to the network.
Such numerical designations facilitate direct communication and are essential for business operations, personal correspondence, and emergency services access. Historically, these designations were crucial for the development of interconnected telecommunication systems, allowing for expansion beyond local exchanges and supporting both national and international connectivity.