Area Code 3533 – Las Varillas, Córdoba

Overview of Area Code 3533

Area code 3533 is a geographic National Destination Code (NDC) within the Argentine national numbering plan, assigned to the city of Las Varillas and its surrounding rural districts in the province of Córdoba. This code is part of the E.164 numbering structure for Argentina, which uses the country calling code +54. Las Varillas is located in the central-eastern part of Córdoba Province, approximately 200 kilometers from the provincial capital, Córdoba City. The area served by 3533 includes the urban area of Las Varillas and several smaller localities such as Alicia, El Fortín, and Colonia Anita, which are within the same local calling area.

Dialing Formats

For callers within Argentina, the national trunk prefix 0 is used before the area code. To call a fixed-line number in Las Varillas from another Argentine city, dial: 0 3533 [local number]. The local number for fixed lines in this area typically consists of 6 digits, making the complete national significant number (NSN) 10 digits (including the area code). For example, a local number 456789 would be dialed as 0 3533 456789 from within Argentina.

For international callers, the format is: +54 3533 [local number]. Using the same example, you would dial +54 3533 456789. The plus sign represents the international access prefix, which varies by country (e.g., 00 from most European countries, 011 from the United States).

Geographic and Administrative Context

Las Varillas is the head town of the San Justo Department in Córdoba Province. The area code 3533 is one of several NDCs assigned to the province, reflecting the decentralized nature of Argentina's fixed-line telephony. The region is primarily agricultural, with a strong dairy and grain production industry. The local economy also includes small manufacturing and services, which rely on reliable telecommunications for business operations.

As with all geographic area codes in Argentina, the prefix 3533 is used exclusively for fixed-line (PSTN) services. Mobile numbers in Argentina are non-geographic and begin with the digit 15 after the area code when dialed nationally, but for international calls, mobile numbers are dialed as +54 9 [area code] [mobile number]. For example, a mobile in Las Varillas might be dialed as +54 9 3533 123456 internationally, though the mobile network itself is not tied to the geographic area.

Caller Instructions

Local callers within the 3533 area can dial the 6-digit local number directly without any prefix. For long-distance calls within Argentina, always include the trunk prefix 0 and the area code. International callers must replace the trunk prefix with the +54 country code and drop the leading 0. It is important to verify the current number length, as Argentina has periodically migrated to 10-digit dialing for fixed lines. As of 2025, the 10-digit format (0 + area code + local number) is standard for all fixed-line calls.