Area Code 2205 – Merlo, Buenos Aires

Geographic Overview

Area code 2205 is a geographic National Destination Code (NDC) assigned to the city of Merlo and its surrounding localities within the Buenos Aires Province, Argentina. Merlo is part of the Greater Buenos Aires conurbation, situated approximately 30 kilometers west of the Autonomous City of Buenos Aires. The area code covers the administrative partido of Merlo, which includes the urban centers of Merlo, Libertad, Pontevedra, and San Antonio de Padua. This region is densely populated and forms part of the western corridor of the Buenos Aires metropolitan area, with significant residential, commercial, and industrial activity.

Dialing Formats

When calling a fixed-line number in Merlo from within Argentina, the national trunk prefix 0 is used, followed by the area code 2205 and the subscriber number (typically 7 digits). For example, to call a local number such as 456-7890 from another Argentine city, you would dial 0-2205-456-7890. From abroad, callers must use the international access prefix (e.g., 00 from most countries, or +), followed by Argentina's country code 54, the area code without the leading 0, and the subscriber number: +54-2205-456-7890.

Local calls within the same area code do not require the trunk prefix or area code; subscribers can dial just the 7-digit number. However, due to the proximity to Buenos Aires, some users may experience overlay or unified dialing schemes, but as of the current numbering plan, 2205 remains a distinct geographic code.

Regulatory and Technical Notes

The Argentine numbering plan is regulated by the Ente Nacional de Comunicaciones (ENACOM). Geographic area codes are assigned to fixed-line services provided by licensed operators such as Telefónica de Argentina (Movistar) and Telecom Argentina (Telecom). Since the liberalization of telecommunications, users in Merlo may have a choice of local carriers for long-distance and international calls, often requiring a carrier selection code. However, for standard calls, the dialing format remains consistent.

For international callers, it is important to note that Argentine fixed-line numbers are typically 10 or 11 digits in length when including the country code and area code. The subscriber number length within 2205 is generally 7 digits, but due to number exhaustion, some areas have introduced 8-digit subscriber numbers. Always verify the exact number length with the recipient.

Practical Guidance

• If you are calling from a mobile phone in Argentina, you may need to include the area code even for local calls, as mobile numbers are non-geographic and routing is based on the full national number.
• When dialing from abroad, omit the leading '0' of the trunk prefix and the '15' that sometimes appears in mobile numbers; for fixed lines, simply use +54 2205 followed by the subscriber number.
• For businesses or individuals in Merlo, it is common to list numbers in international format as +54 2205 XXX XXXX to facilitate overseas contact.