asked on

C# Regex Phone Number

I'm looking for a comprehensive Regex pattern for a north american phone number. Regex isn't my strong suit so I thought I'd put it up here as I'm sure it's a common problem. The main thing is that I want to capture anything that resembles a phone number. It's only used to highlight suspected phone number in text for the user, so false positives are less worrysome than missed numbers...

The following entities should match:
(###)-###-####
(###).###.####
###-###-####
###.###.####
### ### ####
(###) ### ####
### ###-####
### ###.####

etc...

Basically, three number area code (optionally surrounded by parenthesis), with 7 digits following the area code. Number groups can be delimited by spaces, dashes or dots, and shouldn't need to be consistent. For example: 604 555-5555 or 604 555.5555 or (604)-555-5555 etc...

Thanks for your help.

sk

ozo

\b($\d{3}$|\d{3})([-.]|\s+)?\d{3}([-.]|\s+)?\d{3}\b

SOLUTION

dkloeck

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

dkloeck

ozo..at your solution 604 555-5555, as in the solution above, would not work
"shouldn't need to be consistent"

ozo

Sorry, I meant
\b($\d{3}$|\d{3})([-.]|\s+)?\d{3}([-.]|\s+)?\d{4}\b

ozo

($\d{3}$|\b\d{3})([-.]|\s+)?\d{3}([-.]|\s+)?\d{4}\b

tradeline

ASKER

Thanks guys, one last thing, in order to match the phonenumber inside of any other given string, I assume that I can add an asterix to the beginning and end of the pattern?

For example, dkloeck's solution: ^($\d{3}$|\d{3})(\.| |\-)\d{3}(\.| |\-)\d{4}$ changes to ??

Gracias.

ASKER CERTIFIED SOLUTION

ozo

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial