Sent TeamMar 8, 2026 / phone number standards / Article

Cuba Phone Numbers: Format, Area Code & Validation Guide

Explore Cuba's phone number system: formats, dialing codes, & validation. Understand landline (7/8-digit, `[2-7]XXXXXXX`), mobile (`5XXXXXXX`) formats. Includes regex for validation & ITU-T E.164 compliance. Learn about +53 country code, prefixes, & telecom regulations.