regex101: ISO, UK/US and international numbers

^start of line

Character Class[+]?

?matches at most one character from the set below:

+the literal + (43₁₀ / 53₈ / 2B₁₆)

Group 1([0-9]*[\.\s\-]|[0-9]+){3,24}

{3,24}repeats the group contents below between 3 and 24 times:

1st Alternative[0-9]*[\.\s\-]

Character Class[0-9]*

*matches any number of characters from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

Character Class[\.\s\-]

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

\sany whitespace character

\-the literal - (45₁₀ / 55₈ / 2D₁₆)

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

2nd Alternative[0-9]+

Character Class[0-9]+

+matches at least one character from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

$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

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

Search reference

Regular Expression

^[+]?([0-9]*[\.\s\-\(\)]|[0-9]+){3,24}$

New

011 (416) 457 7845
+1 (416) 457 7845
011416457111
Standard Telephone numbers
+61 1 2345 6789
+61 01 2345 6789 (zero entered is not required but enterd by user anyway)
01 2345 6789
01-2345-6789
(01) 2345 6789
(01) 2345-6789
1234 5678
1234-5678
12345678

^(\+[1-9][0-9]*(\([0-9]*\)|-[0-9]*-))?[0]?[1-9][0-9\- ]*$

^(\+[1-9][0-9]*(\([0-9]*\)|-[0-9]*-))?[0]?[1-9][0-9\- ]*$

^\+([0-9]( |-|\+)?)?(\(?[0-9]{3}\)?|[0-9]{3})( |-)?([0-9]{3}( |-)?[0-9]{4}|[a-zA-Z0-9]{7})$

^((\\+[1-9]{1,4}[ \\-]*)|(\\([0-9]{2,3}\\)[ \\-]*)|([0-9]{2,4})[ \\-]*)*?[0-9]{3,4}?[ \\-]*[0-9]{3,4}?$