Regex Tester & Validator

This regex validates Belgian phone numbers, covering both mobile numbers (starting with 04 or +32/0032 followed by 4) and landline numbers with optional area codes. It supports various formatting styles including spaces, dots, slashes, and optional country codes (+32 or 00). Use cases include form validation, data cleaning, and extracting phone numbers from text in multilingual or Belgian contexts. The multiline and global flags allow matching multiple numbers across lines.