The sequence of digits needed to directly reach a landline or mobile telephone in the Catalan capital from outside the country begins with the international access code. This is followed by the country code assigned to the Kingdom of Spain. Finally, the local area code must be dialed before the specific number. For example, to call a landline, one might dial 00-34-93-XXX-XX-XX from outside Spain.
Facilitating international communication is a significant advantage of understanding this numerical sequence. Its correct application ensures efficient connection to individuals and businesses within the metropolitan area. Historically, these codes have evolved with the expansion of telecommunications networks, adapting to growing demand and technological advancements, ensuring seamless connectivity in an increasingly globalized world.