regex101: phone regex

Positive Lookahead(?=.*?\d{3}( |-|.)?\d{4})

.*?any character (except for line terminators), repeated any number of times

\d{3}a digit, repeated exactly 3 times

Group 1( |-|.)?

?repeats the group contents below at most once:

1st Alternative

the literal (32₁₀ / 40₈ / 20₁₆)

2nd Alternative-

-the literal - (45₁₀ / 55₈ / 2D₁₆)

3rd Alternative.

.any character (except for line terminators)

\d{4}a digit, repeated exactly 4 times

Group 2((?:\+?(?:1)(?:\1|\s*?))?(?:(?:\d{3}\s*?)|(?:\((?:\d{3})\)\s*?))\1?(?:\d{3})\1?(?:\d{4})(?:\s*?(?:#|(?:ext\.?))(?:\d{1,5}))?)

Non-Capturing Group(?:\+?(?:1)(?:\1|\s*?))?

?repeats the group contents below at most once:

\+?optionally matches the literal + (43₁₀ / 53₈ / 2B₁₆)

Non-Capturing Group(?:1)

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

Non-Capturing Group(?:\1|\s*?)

1st Alternative\1

\1the text saved by group 1

2nd Alternative\s*?

\s*?any whitespace character, repeated any number of times

Non-Capturing Group(?:(?:\d{3}\s*?)|(?:\((?:\d{3})\)\s*?))

1st Alternative(?:\d{3}\s*?)

Non-Capturing Group(?:\d{3}\s*?)

\d{3}a digit, repeated exactly 3 times

\s*?any whitespace character, repeated any number of times

2nd Alternative(?:\((?:\d{3})\)\s*?)

Non-Capturing Group(?:\((?:\d{3})\)\s*?)

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

Non-Capturing Group(?:\d{3})

\d{3}a digit, repeated exactly 3 times

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

\s*?any whitespace character, repeated any number of times

\1?optionally matches the text saved by group 1

Non-Capturing Group(?:\d{3})

\d{3}a digit, repeated exactly 3 times

\1?optionally matches the text saved by group 1

Non-Capturing Group(?:\d{4})

\d{4}a digit, repeated exactly 4 times

Non-Capturing Group(?:\s*?(?:#|(?:ext\.?))(?:\d{1,5}))?

?repeats the group contents below at most once:

\s*?any whitespace character, repeated any number of times

Non-Capturing Group(?:#|(?:ext\.?))

1st Alternative#

#the literal # (35₁₀ / 43₈ / 23₁₆)

2nd Alternative(?:ext\.?)

Non-Capturing Group(?:ext\.?)

extthe literal text ext (case insensitive)

\.?optionally matches the literal . (46₁₀ / 56₈ / 2E₁₆)

Non-Capturing Group(?:\d{1,5})

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

\ban ASCII word boundary

Global pattern flags

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

i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters

Search reference

Regular Expression

(?=.*?\d{3}( |-|.)?\d{4})((?:\+?(?:1)(?:\1|\s*?))?(?:(?:\d{3}\s*?)|(?:\((?:\d{3})\)\s*?))\1?(?:\d{3})\1?(?:\d{4})(?:\s*?(?:#|(?:ext\.?))(?:\d{1,5}))?)\b

New

+1-855-419-0101 #807
1-855-419-0101 ext807
TÃ©l.: 450-419-0100 #807
1 877 776-5743
1 877 776 5743 patate
1 877 776 57433
1 877 776 5743
3877 776 5743
514 555 9457
(514)555-9457
(514) 555-9457 Ext.333
15145557984
514.795.7777

Regular Expressions 101

Regular Expression

Extraction