Regular expression for GB based and only numeric phone number

by

There are some UK phone number regular expressions here.

The most highly rated one from that page is: 

^(((\+44\s?\d{4}|\(?0\d{4}\)?)\s?\d{3}\s?\d{3})|((\+44\s?\d{3}|\(?0\d{3}\)?)\s?\d{3}\s?\d{4})|((\+44\s?\d{2}|\(?0\d{2}\)?)\s?\d{4}\s?\d{4}))(\s?\#(\d{4}|\d{3}))?$

It is described as: 

Matches     +447222555555   | +44 7222 555 555 | (0722) 5555555 #2222
Non-Matches (+447222)555555 | +44(7222)555555  | (0722) 5555555 #22

Personally I would not put a strict regex on a phone number unless it is absolutely required to have the users actual phone number for identity verification or something involving payments. There are lots of variations of phone numbers, some users could even use Skype as their primary phone, and by putting a validation on you’re just going to block/frustrate users.

Also note you have got the UK format wrong, UK phone numbers should contain 11 digits and are normally in the format (01234) 123123 – we never use dashes and first number should always be a 0.

More Related Contents:

  1. How can I validate an email address using a regular expression?
  2. Reference – Password Validation
  3. RegEx for matching UK Postcodes
  4. Validating IPv4 addresses with regexp
  5. Regular expression for first and last name
  6. Validating email addresses using jQuery and regex
  7. What is a regular expression which will match a valid domain name without a subdomain?
  8. Decimal or numeric values in regular expression validation
  9. Is regular expression recognition of an email address hard?
  10. How to validate phone numbers using regex
  11. Regex match one of two words
  12. How to “Validate” Human Names in CakePHP?
  13. Regular Expression Match to test for a valid year
  14. HTML5 input pattern search for quote
  15. US Phone Number Verification
  16. Regex for Mobile Number Validation
  17. Regex validation of email addresses according to RFC5321/RFC5322
  18. Regex for a valid 32-bit signed integer
  19. Regular Expression for ” – ” and characters after [closed]
  20. How to calculate the number of occurrence of a given character in each row of a column of strings?
  21. Why doesn’t `\d` work in regular expressions in sed? [duplicate]
  22. Regular expression for youtube links
  23. How can I use ‘Not Like’ operator in MongoDB
  24. Zero-Length regexes and infinite matches?
  25. Regex pattern for HH:MM:SS time string
  26. sed join lines together
  27. Complete word matching using grepl in R
  28. Difference between egrep and grep
  29. Regex optional group
  30. What do \S, \W, \D stand for in regex?

Leave a Comment