Area Code 278 – Mirandela

Overview of Area Code 278 (Mirandela, Portugal)

Area code 278 is a geographic National Destination Code (NDC) within the Portuguese public switched telephone network (PSTN), assigned to the northeastern region of Mirandela, in the district of Bragança. This code forms part of the country's closed numbering plan, where the full national significant number (NSN) comprises nine digits, including the leading '2' that designates fixed-line services. The 278 code covers the municipality of Mirandela and its surrounding parishes, including the urban center and rural areas along the Tua River valley. It also serves nearby localities such as Carvalhais, Cabanelas, and Suçães, which are integral to the local administrative and economic fabric.

Dialing Formats and Usage

For callers within Portugal, dialing a Mirandela number requires the prefix 278 followed by the seven-digit subscriber number, resulting in the format 278 XXX XXX. For international callers, the country code for Portugal (+351) is added, omitting the trunk prefix '0' (which is not used in Portuguese dialing). Thus, the international format becomes +351 278 XXX XXX. This code is exclusively geographic, meaning that the tariff and routing are based on the physical location of the fixed line. However, with the advent of number portability, a subscriber may retain a 278 number even if they move outside the region, though this is less common for fixed lines.

Administrative and Regulatory Context

Portugal's numbering plan is administered by ANACOM (Autoridade Nacional de Comunicações), the national regulatory authority. The 278 code is part of the '2' range, which is reserved for fixed-line services. There are no overlay codes currently active in this area, so the 278 code is the sole geographic code for Mirandela. Callers from other Portuguese regions must dial the full nine-digit number, including the area code, even for local calls within the same code area. This is a standard practice in closed numbering plans, ensuring uniformity and simplicity.

Practical Information for Callers

• Local callers: Dial 278 followed by the subscriber number (e.g., 278 123 456).
• International callers: Dial the international access prefix (e.g., 00 from most countries), then 351, then 278 and the subscriber number (e.g., +351 278 123 456).
• Emergency services: In Portugal, the national emergency number is 112, which is independent of geographic codes.

Understanding the correct dialing format is essential for businesses and individuals connecting to Mirandela, a region known for its olive oil production and historical heritage. Whether for commercial or personal communication, using the proper international format ensures seamless connectivity.