Regular expression to match standard 10 digit phone number

Question

I want to write a regular expression for a standard US type phone number that supports the following formats      -   -              -                                 where   means any number  So far I came up with the following expressions    1-9  d 2 - d 3 - d 4      d 3    s d 3 - d 4    1-9  d 2  s d 3  s d 4    1-9  d 2    d 3    d 4    respectively  I am not quite sure if the last one is correct for the dotted check  I also want to know if there is any way I could write a single expression instead of the 4 different ones that cater to the different formats I mentioned  If so  I am not sure how do I do that  And also how do I modify the expression expressions so that I can also include a condition to support the area code as optional component  Something like   1                where  1 is the area code and it is optional

User · Answer

How about this         01    -  s      1-9  d 2     -  s   d 3  -  s   d 4    EDIT  I forgot about the    one  EDIT 2  Got the first 3 digit part wrong

User · Answer

what about multiple numbers with     and seperate them with          -  or     characters

User · Answer

There are many variations possible for this problem  Here is a regular expression similar to an answer I previously placed on SO      s         d 1 3     -       d 3   -       d 3   -      d 4       x  d     s     It would match the following examples and much more   18005551234 1 800 555 1234  1 800 555-1234  86 800 555 1234 1-800-555-1234 1  800  555-1234  800 555-1234  800  555-1234  800 5551234 800-555-1234 800 555 1234 800 555 1234x5678 8005551234 x5678 1    800    555-1234 1----800----555-1234   Regardless of the way the phone number is entered  the capture groups can be used to breakdown the phone number so you can process it in your code    Group1  Country Code  ex  1 or 86  Group2  Area Code  ex  800  Group3  Exchange  ex  555  Group4  Subscriber Number  ex  1234  Group5  Extension  ex  5678    Here is a breakdown of the expression if you re interested     s                  Line start  match any whitespaces at the beginning if any          d 1 3        GROUP 1  The country code  Optional   -                   Allow certain non numeric characters that may appear between the Country Code and the Area Code    d 3                GROUP 2  The Area Code  Required   -                   Allow certain non numeric characters that may appear between the Area Code and the Exchange number    d 3                GROUP 3  The Exchange number  Required   -                   Allow certain non numeric characters that may appear between the Exchange number and the Subscriber number    d 4                Group 4  The Subscriber Number  Required       x  d            Group 5  The Extension number  Optional   s                   Match any ending whitespaces if any and the end of string    To make the Area Code optional  just add a question mark after the   d 3   for the area code

User · Answer

This is a more comprehensive version that will match as much as I can think of as well as give you group matching for country  region  first  and last        lt number gt        lt country gt   d 1 3     s -              lt region gt   d 3        s -          lt first gt   d 3     s -          lt last gt   d 4

User · Answer

This code will match a US or Canadian phone number  and will also make sure that it is a valid area code and exchange        1    s-        2-9  d d     s-   2-9  d d  s-   d d d d   Test on Regex101 com

User · Answer

Here s a fairly compact one I created   Search     1  s    -      d 3        -  s   d 3     -  s   d 4     Replace   1    1    2- 3   Tested against the following use cases   18001234567 1 800 123 4567 1-800-123-4567  18001234567  1 800 123 4567  1  800  123 4567 1 800 1234567  1800 1234567 1 8001234567 1 800 123 4567 1--800--123--4567  1  800  123-4567

User · Answer

I ended up with    const regexBase              d 1 3     -        d 3    -        d 3   -       d 4 5       x   d       const phoneRegex   new RegExp    s     regexBase      s     g      this was to allow for things like dutch numbers  for example   358 300 20200

User · Answer

I find this regular expression most useful for me for 10 digit contact number               0 0 2  91  s   -  s     0     789  d 9     Reference  https   regex101 com r QeQewP 1   Explanation

User · Answer

Above regex is a slight modification of   Francis Gagnon   Objective   To detect any possible pattern a user can share their US phone number    Version 1     s         d 1 3      W D s    d  W D s    d  D W s    d   W D s    d  W D s    d  D W s    d   W D s    d  W D s    d  D W s    d  W D s    d      x  d     s        Test it over here Codepen  https   codepen io kiranbhattarai pen NWKMXQO      Explanation of the regex   https   regexr com 4kt5j     Version 2    s         d 1 3      W D s        d  W D s    d  D W s    d   W D s    d  W D s    d  D W s    d   W D s    d  W D s    d  D W s    d  W D s    d      x  d     s     What is in it  The test cases can be a part of the string  In version one the test cases should be a start of a line to work       Codepen  https   codepen io kiranbhattarai pen GRKGNGG      Explanation of the regex   https   regexr com 4kt9n     If you can find a pattern that can fail please do comment i will fix it   Test Cases  Pass   8 0   0  4  4  4  5   55 5 1 800 555 1234  1 800 555-1234  86 800 555 1234 1-800-555-1234 1  800  555-1234  800 555-1234  800  555-1234  800 5551234 800-555-1234 800 555 1234 800 555 1234x5678 8005551234 x5678 1    800    555-1234 1----800----555-1234 800  555  1234 800 555 1234 8 0 0 5 5 5 1 2 3 4 8 0 0 5 5 5 1 2 3 4 8-0-0-5-5-5-1-2-3-4  8 005551234  80 05551234 8 00 5551234 8 0 0 5551234 8 0 0 5 5 5 1 2 3 4 8 0 0 5 5 5 1 2 3 4 8 0 0 5 5 5 1 2 3 4 8 0 0 5 5 5 1 2 3 4 800 555 1234 800 555 1234 1-718-444-1122 718-444-1122  718 -444-1122 17184441122 7184441122 718 444 1122 1718 444 1122 1-123-456-7890 1 123-456-7890 1  123  456-7890 1 123 456 7890 1 123 456 7890  91  123  456-7890 18005551234 1 800 555 1234  1 800 555-1234  86 800 555 1234 1-800-555-1234 1  800  555-1234  800 555-1234  800  555-1234  800 5551234 800-555-1234 800 555 1234 18001234567 1 800 123 4567 1-800-123-4567  18001234567  1 800 123 4567  1  800  123 4567 1 800 1234567  1800 1234567 1 8001234567 1 800 123 4567  1  800  123-4567 18001234567 1 800 123 4567  1 800 123-4567  86 800 123 4567 1-800-123-4567 1  800  123-4567  800 123-4567  800  123-4567  800 1234567 800-123-4567 800 123 4567 1231231231 123-1231231 123123-1231 123-123 1231 123 123-1231 123-123-1231  123 123-1231  123  123-1231  123  123 1231  99 1234567890  991234567890  555  444-6789 555-444-6789 555 444 6789 555 444 6789 1 800 555 1234  1 800 555-1234  86 800 555 1234 1-800-555-1234 1 800 555 1234  1 800 555 1234 1  800  555-1234  800 555-1234  800  555-1234  800 5551234 800-555-1234 800 555 1234  003  555-1212  103  555-1212  911  555-1212 18005551234 1 800 555 1234  86 800-555-1234 1  800  555-1234

User · Answer

1   s     1-9  d 2     1-9  d 2   -  s    d 3  -  s    d 4

User · Answer

Phone number regex that I use              d 1 2     s -      d 3      s -   d 3   s -   d 4     Covers    18001234567 1 800 123 4567  1 800 123-4567  86 800 123 4567 1-800-123-4567 1  800  123-4567  800 123-4567  800  123-4567  800 1234567 800-123-4567 800 123 4567

User · Answer

d 1 2  s      d 3      s -  d 3   s -  d 4     Matches the following  123-456-7890  123  456-7890 123 456 7890 123 456 7890  91  123  456-7890   If you do not want a match on non-US numbers use      0 1 s      d 3      s -  d 3   s -  d 4     Update   As noticed by user Simon Weaver below  if you are also interested in matching on unformatted numbers just make the separator character class optional as   s -         d 1 2  s      d 3      s -   d 3   s -   d 4

User · Answer

Perhaps the easiest one compare to several others      d     -  s   d  -  s   d   It matches the following    555  444-6789 555-444-6789 555 444 6789 555 444 6789

User · Answer

try this for Pakistani users  Here s a fairly compact one I created       92  0    -    0-9    -    0-9    -    0-9    Tested against the following use cases    92 -345 -123 -4567  92 333 123 4567  92 300 123 4567  92 321 123 -4567  92 345 - 540 - 5883

User · Answer

I m just throwing this answer in there since it solves a problem of mine  it s based off of  stormy s answer  but includes 3 digit country codes and more importantly can be used anywhere in a string  but won t match is it s not preceded by a space start of the string and ending with a word boundary  This is useful so that it won t match random numbers in the middle of a URL or something       s         d 1 3  s   1  -     s     d 3      s -   d 3   s -   d 4      b

User · Answer

Starting with  Ravi s answer  I also applied some validation rules for the NPA  Area  Code   In particular    It should start with a 2  or higher  It cannot have  11  as the second and third digits  N11     There are a couple other restrictions  including reserved blocks  N9X  37X  96X  and 555  but I left those out  particularly because the reserved blocks may see future use  and 555 is useful for testing   This is what I came up with         d 1 2  1   s -        2-9    11  d 2      s -   d 3   s -   d 4     Alternately  if you also want to match blank values  if the field isn t required   you can use          d 1 2  1   s -        2-9    11  d 2      s -   d 3   s -   d 4         My test cases for valid numbers  many from  Francis  answer  are   18005551234 1 800 555 1234  1 800 555-1234  86 800 555 1234 1-800-555-1234 1 800 555 1234  1 800 555 1234 1  800  555-1234  800 555-1234  800  555-1234  800 5551234 800-555-1234 800 555 1234   My invalid test cases include    003  555-1212        Area code starts with 0  103  555-1212        Area code starts with 1  911  555-1212        Area code ends with 11 180055512345          Too many digits 1 800 5555 1234       Prefix code too long  1 800 555x1234       Invalid delimiter  867 800 555 1234     Country code too long 1-800-555-1234p       Invalid character 1  800   555-1234     Too many spaces 800x555x1234          Invalid delimiter 86 800 555 1212       Non-NA country code doesn t have     My regular expression does not include grouping to extract the digit groups  but it can be modified to include those

User · Answer

Adding up an example using above mentioned solutions on jsfiddle  I have modified the code a bit as per my clients requirement  Hope this also helps someone      s         d 1 3     -      d 3   -      d 3   -     d 4        x    1   d     s      See Example Here

User · Answer

The expressions for 1  3 and 4 are quite similar  so you can use      1-9  d 2    -      d 3   2  d 4      Note that  depending on the language and brand of regexes used  you might need to put  2 instead of  2 or such matching might not be supported at all   I see no good way to combine this with the format 2  apart from the obvious   regex for 1 3 4 regex for 2   which is ugly  clumsy and makes it hard to get out the parts of the numbers   As for the area code  you can add     d   to the beginning to capture a single-digit area code  sorry  I don t know the format of your area codes

User · Answer

Regex pattern to validate a regular 10 digit phone number plus optional international code  1 to 3 digits  and optional extension number  any number of digits        d 1 3  s        d 3    s     d 3    s -     d 3   s -     d 4    s    E e xt         x X   s  d     g  Demo  https   www regextester com 103299 Valid entries     Full number     999  999  999-9999 Ext  99999     Regular local phone number  XXX  XXX-XXXX    1231231231 123-1231231 123123-1231 123-123 1231 123 123-1231 123-123-1231  123 123-1231  123 123 1231  123  123-1231  123  123 1231     International codes  XXX  XXX  XXX-XXXX     99 1234567890  991234567890     Extensions  XXX  XXX-XXXX Ext  XXX       1234567890 Ext 1123123 1234567890Ext 1123123 1234567890 Ext1123123 1234567890Ext1123123  1234567890 Ext  1123123 1234567890Ext  1123123 1234567890 Ext 1123123 1234567890Ext 1123123  1234567890 Ext  1123123 1234567890Ext  1123123 1234567890 Ext 1123123 1234567890Ext 1123123  1234567890 ext 1123123 1234567890ext 1123123 1234567890 ext1123123 1234567890ext1123123  1234567890 ext  1123123 1234567890ext  1123123 1234567890 ext 1123123 1234567890ext 1123123  1234567890 X 1123123 1234567890X1123123 1234567890X 1123123 1234567890 X1123123 1234567890 x 1123123 1234567890x1123123 1234567890 x1123123 1234567890x 1123123

User · Answer

d 1 2  s   1  -     s     d 3      s -   d 3   s -   d 4    Matches these phone numbers   1-718-444-1122 718-444-1122  718 -444-1122 17184441122 7184441122 718 444 1122 1718 444 1122 1-123-456-7890 1 123-456-7890 1  123  456-7890 1 123 456 7890 1 123 456 7890  91  123  456-7890 18005551234 1 800 555 1234  1 800 555-1234  86 800 555 1234 1-800-555-1234 1  800  555-1234  800 555-1234  800  555-1234  800 5551234 800-555-1234 800 555 1234 18001234567 1 800 123 4567 1-800-123-4567  18001234567  1 800 123 4567  1  800  123 4567 1 800 1234567  1800 1234567 1 8001234567 1 800 123 4567  1  800  123-4567 18001234567 1 800 123 4567  1 800 123-4567  86 800 123 4567 1-800-123-4567 1  800  123-4567  800 123-4567  800  123-4567  800 1234567 800-123-4567 800 123 4567 1231231231 123-1231231 123123-1231 123-123 1231 123 123-1231 123-123-1231  123 123-1231  123 123 1231  123  123-1231  123  123 1231  99 1234567890  991234567890  555  444-6789 555-444-6789 555 444 6789 555 444 6789 18005551234 1 800 555 1234  1 800 555-1234  86 800 555 1234 1-800-555-1234 1 800 555 1234  1 800 555 1234 1  800  555-1234  800 555-1234  800  555-1234  800 5551234 800-555-1234 800 555 1234  003  555-1212  103  555-1212  911  555-1212 18005551234 1 800 555 1234  86 800-555-1234 1  800  555-1234   See regex101 com

[regex] Regular expression to match standard 10 digit phone number

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