Area Code 316 – Mobile Network
The phone area code for Mobile Network is 316 (international format +57316). Browse local exchange codes (NXX) and carrier assignments below.
Overview of Colombia's Mobile Prefix 316
In Colombia's national numbering plan, the prefix 316 is a non-geographic mobile identifier, allocated to mobile network operators (MNOs) and mobile virtual network operators (MVNOs) under the country calling code +57. Unlike geographic area codes that correspond to specific cities or departments, 316 is location-independent, meaning the subscriber can be anywhere in the country. This prefix is part of the 10-digit national significant number (NSN) format: 3XX XXX XXXX. The first digit '3' indicates a mobile service, while the following two digits (in this case, 16) identify the specific operator or operator group. Over the years, number portability has been implemented in Colombia, so a number starting with 316 may no longer be tied to its original operator; however, the prefix remains a reliable indicator of the number's mobile nature.
Dialing Format and Usage
To call a Colombian mobile number beginning with 316 from abroad, you must dial the international access code (e.g., 00 or +), followed by Colombia's country code 57, and then the full 10-digit mobile number, omitting any leading trunk prefix. For example, a number like +57 316 123 4567 would be dialed as +573161234567 from any international phone. Within Colombia, callers simply dial the 10-digit number directly, e.g., 316 123 4567, without any additional area code. This uniform dialing applies to both local and long-distance calls within the country, as mobile numbers are non-geographic.
Technical Considerations
From a technical standpoint, calls to 316 numbers are routed through Colombia's mobile switching centers, regardless of the caller's location. SMS and MMS messages to these numbers also follow standard mobile routing protocols. For international interoperability, Colombia uses the E.164 format, ensuring that +57 316 numbers are reachable worldwide. It is important to note that while 316 is primarily associated with mobile services, some VoIP providers may also use similar numbering ranges, but the prefix 316 is officially designated for mobile use. When dialing from a fixed line in Colombia, no trunk prefix (like '0') is required, simplifying the dialing process. For callers outside Colombia, always replace the '+' with the appropriate international prefix (e.g., 011 from the US, 00 from many European countries) when dialing from a landline.
Regulatory and Operational Context
The Colombian Communications Regulatory Commission (CRC) oversees the assignment of numbering resources. The 316 prefix was originally allocated to Colombia Móvil (operating under the brand Tigo), but due to number portability and market consolidation, it may now be used by other operators such as Claro, Movistar, or various MVNOs. This means that while the prefix historically indicated Tigo, it no longer guarantees the operator. For businesses and individuals, this prefix is widely used for personal and professional mobile communications, and it is fully supported for voice, SMS, and data services. When storing contacts internationally, it is recommended to use the full international format (+57 316...) to ensure proper routing and avoid dialing errors.