The numerical sequence designates a specific country or territory within the international telecommunications network. It is dialed before the subscriber number when calling from outside that designated location. As an illustration, calls originating from outside Senegal require dialing this sequence before the Senegalese phone number.
This numerical identifier is essential for routing calls effectively across international borders, enabling seamless communication and connection between individuals and organizations worldwide. Its implementation has facilitated global trade, diplomatic relations, and personal interactions by removing geographical barriers to communication. The establishment and allocation of these codes are governed by international telecommunication standards, ensuring a structured and organized global system.