Area Code 7 – Havana City
The phone area code for Havana City is 7 (international format +537). Browse local exchange codes (NXX) and carrier assignments below.
📍 Geographic Location of Havana City
Geographic Coverage and Administrative Jurisdiction
The area code 7 is the National Destination Code (NDC) for the capital city of Cuba, Havana (La Habana), as well as the surrounding province of Artemisa and the special municipality of Isla de la Juventud. This geographic allocation follows the ITU-T E.164 international numbering plan, ensuring that calls to landlines in this region are routed correctly. The code covers the entire metropolitan area of Havana, including the historic center (Habana Vieja), Vedado, Miramar, and the eastern municipalities such as Guanabacoa and Regla.
Dialing Formats
When dialing a fixed-line number in Havana from within Cuba, the trunk prefix 0 is used, followed by the area code and the subscriber number. For example, a local number might be 7-123-4567. To call from abroad, you must use the international access prefix (typically 00 or +), followed by the country code 53, the area code 7 (without the leading zero), and the subscriber number. Thus, an international caller would dial +53 7 123 4567.
Local and International Caller Instructions
For callers within Cuba, local calls within Havana do not require the area code; simply dial the 7-digit subscriber number. However, when calling from another province, you must dial 0 then 7 then the number. For international callers, it is essential to drop the trunk prefix 0 and use the country code 53 before the area code. For example, a caller from the United States would dial 011 53 7 123 4567.
Overlay Considerations and Numbering Changes
As of the latest ITU-T recommendations, Cuba has not implemented overlay codes for Havana. The area code 7 remains the sole geographic code for the capital region. However, due to the growth of telecommunication services, the Cuban government has introduced new number ranges for mobile and VoIP services, but these are non-geographic and use different NDCs. Fixed-line numbers in Havana are typically 7 digits long after the area code, and there are no plans to change this in the near future.
Technical Routing and PSTN Integration
The Public Switched Telephone Network (PSTN) in Cuba is managed by the state-owned telecommunications company, ETECSA. Calls to Havana landlines are routed through the national backbone and international gateways. The area code 7 is a geographic NDC, meaning that the routing is based on the physical location of the subscriber's line. This is distinct from mobile or VoIP prefixes, which are non-geographic and require different handling. For VoIP providers, it is crucial to correctly format the number as +53 7 to ensure proper termination on the Cuban PSTN.