brazilian phone regex

Brazilian phone regex

Brazilian phone numbers are a strong programmatic case because they have local intent, their own format and an existing tool preset.

Approved intentTest a Brazilian phone regex with area code and optional ninth digit.

Available presetThe Regex Builder below already loads the “Phone (BR)” preset, with pattern, flags and samples ready to test.

regexBuilder.testLegend

regexBuilder.matchesLabel2

(11) 99999-9999 11999999999 11 9999 9999

regexBuilder.explanationLegend

Match starts with, then literal '(', then optional, then digit (0-9), then quantified by {2}, then literal ')', then optional, then whitespace, then optional, then '9', then optional, then digit (0-9), then quantified by {4}, then '-', then optional, then digit (0-9), then quantified by {4}, then ends

^start of input
\(escaped '('
?optional
\ddigit (0-9)
{2}quantifier {2}
\)escaped ')'
?optional
\swhitespace
?optional
9literal '9'
?optional
\ddigit (0-9)
{4}quantifier {4}
-literal '-'
?optional
\ddigit (0-9)
{4}quantifier {4}
$end of input

regexBuilder.library.email.name

regexBuilder.library.email.description

/^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$/gm

regexBuilder.library.phone-br.name

regexBuilder.library.phone-br.description

/^$?\d{2}$?\s?9?\d{4}-?\d{4}$/gm

regexBuilder.library.url.name

regexBuilder.library.url.description

/^https?:\/\/[\w.-]+(?:\:\d+)?(?:\/[\w\-._~:/?#\[\]@!$&'()*+,;=%]*)?$/gm

regexBuilder.library.hex-color.name

regexBuilder.library.hex-color.description

/^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})$/gm

regexBuilder.library.date-iso.name

regexBuilder.library.date-iso.description

/^\d{4}-\d{2}-\d{2}$/gm

regexBuilder.library.extract-numbers.name

regexBuilder.library.extract-numbers.description

/\d+(?:[.,]\d+)?/g

regexBuilder.library.html-tags.name

regexBuilder.library.html-tags.description

/<\/?[a-zA-Z][^>]*>/g

regexBuilder.library.uuid.name

regexBuilder.library.uuid.description

/^[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-5][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}$/gm

regexBuilder.privacyNote

Supported pattern

The preset accepts optional parenthesized area code, optional spacing, optional ninth digit, four digits, optional hyphen and four digits.
It validates shape, not line existence or carrier-specific operational rules.

Accepted examples

Formatted mobile

Input: (11) 99999-9999
Expected output: match

Area code + ninth digit.

Unformatted number

Input: 11999999999
Expected output: match

Useful for normalized inputs.

Frequently asked questions

Does the regex validate that the phone exists?

No. Regex validates format. Existence requires an external service or SMS/WhatsApp confirmation.

Does it work for landlines?

Yes, the ninth digit is optional in the current preset.