regex101: International Phones Validation

1st Alternative^(\d{10,21})

^start of line

Group 1(\d{10,21})

\d{10,21}a digit, repeated between 10 and 21 times

2nd Alternative(\+\d{1,3}|\d{1,4}|$\+\d{1,3}$|$\d{1,2}$)(([ -.]\d+){1,5}$|([ -.]\d+){1,5}([ -.](ext\.|x|extention))[ -.]\d{1,5}$)

Group 2(\+\d{1,3}|\d{1,4}|$\+\d{1,3}$|$\d{1,2}$)

1st Alternative\+\d{1,3}

\+the literal + (43₁₀ / 53₈ / 2B₁₆)

\d{1,3}a digit, repeated between 1 and 3 times

2nd Alternative\d{1,4}

\d{1,4}a digit, repeated between 1 and 4 times

3rd Alternative$\+\d{1,3}$

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

\+the literal + (43₁₀ / 53₈ / 2B₁₆)

\d{1,3}a digit, repeated between 1 and 3 times

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

4th Alternative$\d{1,2}$

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

\d{1,2}a digit, repeated between 1 and 2 times

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

Group 3(([ -.]\d+){1,5}$|([ -.]\d+){1,5}([ -.](ext\.|x|extention))[ -.]\d{1,5}$)

1st Alternative([ -.]\d+){1,5}$

Group 4([ -.]\d+){1,5}

{1,5}repeats the group contents below between 1 and 5 times:

Character Class[ -.]

-.one character from (32₁₀) to . (46₁₀)

\d+a digit, repeated at least once

$end of line

2nd Alternative([ -.]\d+){1,5}([ -.](ext\.|x|extention))[ -.]\d{1,5}$

Group 5([ -.]\d+){1,5}

{1,5}repeats the group contents below between 1 and 5 times:

Character Class[ -.]

-.one character from (32₁₀) to . (46₁₀)

\d+a digit, repeated at least once

Group 6([ -.](ext\.|x|extention))

Character Class[ -.]

-.one character from (32₁₀) to . (46₁₀)

Group 7(ext\.|x|extention)

1st Alternativeext\.

extthe literal text ext (case sensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

2nd Alternativex

xthe literal x (120₁₀ / 170₈ / 78₁₆) (case sensitive)

3rd Alternativeextention

extentionthe literal text extention (case sensitive)

Character Class[ -.]

-.one character from (32₁₀) to . (46₁₀)

\d{1,5}a digit, repeated between 1 and 5 times

$end of line

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Search reference

Regular Expression

^(\d{10,21})|(\+\d{1,3}|\d{1,4}|\(\+\d{1,3}\)|\(\d{1,2}\))(([ -.]\d+){1,5}$|([ -.]\d+){1,5}([ -.](ext\.|x|extention))[ -.]\d{1,5}$)

Unit Tests

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