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Regular Expression Details

Title Test Find Pattern Title
Expression
^[01]?[- .]?\(?[2-9]\d{2}\)?[- .]?\d{3}[- .]?\d{4}$
Description
U. S. or Canadian telephone number regular expression. <BR> <BR> // # Checks phone numbers for validity <BR> // [01]? # optional '0', or '1' <BR> // [- .]? # optional separator is either a dash, a space, or a period. <BR> // \(? # optional parentheses <BR> // [2-9] # first # of the area code must not be a '0' or '1' <BR> // \d{2} # next 2 digits of area code can be 0-9 <BR> // \)? # optional parentheses <BR> // [- .]? # optional separator is either a dash, a space, or a period. <BR> // \d{3} # 3-digit prefix <BR> // [- .]? # optional separator is either a dash, a space, or a period. <BR> // \d{4} # 4-digit station number <BR>
Matches
18008793262 | 800-879-3262 | 0-800.879.3262
Non-Matches
879 3262 | 077 879 3262 | 879-3262
Author Rating: Not yet rated. W. D.
Source http://www.US-Webmasters.com/
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Existing User Comments

Title: Great
Name: Delmar Reid
Date: 5/30/2006 10:40:40 AM
Comment:
This is very useful, thanks!


Title: Variation with optional Extension
Name: Bob C
Date: 8/9/2005 4:47:38 PM
Comment:
This version adds an optional extension in the form xnnn ^[01]?[- .]?\(?[2-9]\d{2}\)?[- .]?\d{3}[- .]?\d{4}([ ][x]\d\d*?)?$


Title: Thanks
Name: Bob C
Date: 8/9/2005 11:06:06 AM
Comment:
This site is a life-saver!!! Highly recommended. I'll pass it on.


Title: Lookahead Assertion Might Be Needed
Name: W. D. (http://www.US-Webmasters.com/)
Date: 2/18/2004 12:40:01 AM
Comment:
Yep. You are correct. I just created this the way it is because I wanted the user to type in a valid phone number with area code. So, even though 211) 111-1111 looks a little goofy, it has all the digits there. I am writing a routine that strips out all but the numbers and then formats it like this: 211-111-1111 -- Title: Lookahead Assertion Might Be Needed Name: J$ Date: 2/17/2004 10:31:56 PM Comment: That regex matches the following: 211) 111-1111


Title: Lookahead Assertion Might Be Needed
Name: J$
Date: 2/17/2004 10:31:56 PM
Comment:
That regex matches the following: 211) 111-1111


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