Telephone numbers in Cuba conform to a fixed format of eight digits. The first one to two are the area code, the remaining digits are the subscriber number.
Calls between locations with different area codes are prefixed with the trunk prefix 0, followed by the area code and telephone number.
The telephone country code is 53.
The international call prefix is harmonized to 00 (fix line formerly used 119 while mobile always used 00).
The mobile numbers format is 5xxx xxxx.
List of area codes in Cuba
LIST OF AREA CODES Area Code Province/City 21Guantánamo Province22Santiago de Cuba Province23Granma Province24Holguín Province31Las Tunas Province32Camagüey Province32Mamanantuabo33Ciego de Ávila Province41Sancti Spíritus Province 41Cabaiguán41Trinidad42Villa Clara Province42Condado42El Pedrero42Santa Clara42Topes de Collantes43Cienfuegos Province45Matanzas Province45Cayo Largo del Sur46Isla de la Juventud (Isle of Youth)47Havana Province47Silvio Caro48Pinar del Río Province5Mobile phones (nationwide)63Mobile phones (nationwide)7Havana City
The Guantanamo Bay Naval Base, operated by the United States Navy, has an unofficial area code of 99, which is only dialable from within the United States. Dialing 011 53 99 returns a second dial tone, after which the local number at the naval base can be dialed.
See also Communications in Cuba
References
External links https://it.granma.cu/cuba/2019-04-26/etecsa-installera-il-codice-daccesso-00 Empresa de Telecomunicaciones de Cuba, SA - ETECSA website Cubacel (Mobile phones administration) Cubacel website CubaSMS (Text messages to cuban mobile phones) CubaSMS website