Area Code 54 – Arequipa

Overview of Area Code 54 (Arequipa, Peru)

Area code 54 is the National Destination Code (NDC) assigned to the Arequipa Region in southern Peru, under the national numbering plan administered by the Ministry of Transport and Communications (MTC) and regulated by OSIPTEL. This geographic code covers the city of Arequipa, the country's second most populous urban center, as well as the surrounding provinces: Camaná, Caravelí, Castilla, Caylloma, Condesuyos, Islay, and La Unión. The region is a major economic hub, home to industries such as mining, agriculture, and tourism, with the historic center of Arequipa being a UNESCO World Heritage Site.

Subscriber numbers within area code 54 are seven digits long, resulting in a complete national significant number (NSN) of eight digits when combined with the area code. The international format for calling a fixed line in Arequipa from abroad is +51 54 XXX XXXX (or +5154XXXXXXX). For example, a local number such as 212345 would be dialed as +51 54 212345 internationally. Within Peru, callers from other regions must dial the trunk prefix 0 followed by the area code and subscriber number: 0 54 212345. Local calls within the same area code do not require the area code; subscribers can dial the seven-digit number directly.

It is important to note that Peru has implemented number portability for fixed lines, allowing subscribers to retain their numbers when changing operators within the same geographic area. However, the geographic significance of the code remains tied to the physical location of the line. Overlay codes have not been introduced in Arequipa; the 54 code is exclusively used for fixed-line services in the region. Mobile numbers in Peru are non-geographic and always begin with the digit 9 (e.g., 9XX XXX XXX), so they are never confused with geographic area codes.

For international callers, the process is straightforward: dial the international access prefix (e.g., 011 from the US, 00 from many countries), then Peru's country code 51, followed by the area code 54 and the seven-digit local number. For example, to call a business in Arequipa with the number 201234, you would dial +51 54 201234. When calling from a mobile phone abroad, the plus sign (+) can be used instead of the international prefix. Always ensure you drop the leading trunk prefix (0) when dialing from outside Peru.

Understanding the correct dialing format is crucial for businesses and individuals maintaining contact with Arequipa. As Peru's telecommunications infrastructure continues to expand, the 54 code remains a reliable identifier for one of the nation's most vital regions.