Area Code 315 – Mobile Network
The phone area code for Mobile Network is 315 (international format +57315). Browse local exchange codes (NXX) and carrier assignments below.
The Colombian mobile prefix 315 is a non-geographic number range assigned to mobile network operators (MNOs) and mobile virtual network operators (MVNOs) operating within Colombia's national numbering plan. Unlike geographic area codes, which correspond to specific cities or departments, the 315 prefix is not tied to a physical location. This means that a number starting with +57 315 can belong to a subscriber anywhere in the country, from Bogotá to Medellín, Cali, or rural areas.
Technical Format and Dialing
Colombian mobile numbers, including those beginning with 315, consist of a three-digit mobile prefix followed by a seven-digit subscriber number, resulting in a total of ten digits for the national significant number (NSN). The international format for dialing a 315 number is +57 315 XXX XXXX, where +57 is Colombia's country calling code. When dialing from within Colombia, callers must use the national trunk prefix 0 followed by the ten-digit mobile number: 0315 XXX XXXX. However, due to the implementation of the national numbering plan, the leading '0' is often omitted in practice, and callers can dial the ten-digit number directly.
Number Portability and Carrier Assignment
Colombia implemented mobile number portability (MNP) in 2011, allowing subscribers to retain their 315 numbers when switching between mobile operators. As a result, the 315 prefix is no longer exclusively associated with a single carrier. Historically, 315 was assigned to Comcel (now Claro), but today, a 315 number may be served by any MNO or MVNO, including Movistar, Tigo, WOM, or smaller virtual operators. This portability means that the prefix does not reliably indicate the current network provider, and routing decisions are based on the number's ported status in the central database.
Usage and International Considerations
Numbers with the 315 prefix are used for voice calls, SMS, and mobile data services. For international callers, dialing +57 315 XXX XXXX will connect to the subscriber regardless of their location within Colombia. It is important to note that calls to Colombian mobile numbers may incur higher international tariffs than calls to fixed lines, depending on the caller's carrier. Additionally, SMS messages to 315 numbers should be addressed to the full international format for cross-border delivery.
From a regulatory perspective, the 315 prefix is part of Colombia's national numbering plan administered by the Comisión de Regulación de Comunicaciones (CRC). The CRC allocates number ranges to operators and oversees the implementation of MNP and other numbering policies. As with all mobile prefixes in Colombia, the 315 range is non-geographic, ensuring that subscribers can move freely without changing their numbers.