Cheatsheet Pages / Regex Cheatsheet
A loose regex for international phone numbers
Phone numbers arrive in E.164 style, with or without the leading +.
Patterns use the syntax shared by PCRE / Python / JavaScript; engine differences are flagged in the cheatsheet where they matter. Test any pattern at regex101.com — and pick the matching engine.
\+?[1-9]\d{6,14}
# matches: +14155552671, 8613800138000 — validate properly server-sideGood to know
Tolerant by design — validate properly on the server side.
