best regex for phone numbers

What is the best regular expression for phone numbers? [duplicate]

stackoverflow.com › questions › 13719367 › what-is-the-best-regular-expression-for-phone-numbers

I'd go with

# countryCode
(?:\+\d{1,3}|0\d{1,3}|00\d{1,2})

# actual number
(?:[-\/\s.]|\d)+

# combined with optional country code and parantheses in between
 ^(?:\+\d{1,3}|0\d{1,3}|00\d{1,2})?(?:\s?\(\d+\))?(?:[-\/\s.]|\d)+$

This should be good enough to match most most European and US representations of a phone Number as

+49 123 999
0001 123.456
+31 (0) 8123

But in general there are too many overlapping textual representation of a phone Number as to use a single Regex for different countries. If you could match all representations you'll get to many false positives. As what may be a number in Switzerland may be something else in Russia, Germany or Ghana. It's all about balancing precision and recall and optimizing the Regex to the countries you really need.

Answer from Andreas Neumann on Stack Overflow

Ihateregex

ihateregex.io › expr › phone

Regex for phone number - iHateRegex

Match a phone number with "-" and/or country code.

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stackoverflow.com › questions › 13719367 › what-is-the-best-regular-expression-for-phone-numbers

regex - What is the best regular expression for phone numbers? - Stack Overflow

Top answer

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I'd go with

# countryCode
(?:\+\d{1,3}|0\d{1,3}|00\d{1,2})

# actual number
(?:[-\/\s.]|\d)+

# combined with optional country code and parantheses in between
 ^(?:\+\d{1,3}|0\d{1,3}|00\d{1,2})?(?:\s?\(\d+\))?(?:[-\/\s.]|\d)+$

This should be good enough to match most most European and US representations of a phone Number as

+49 123 999
0001 123.456
+31 (0) 8123

But in general there are too many overlapping textual representation of a phone Number as to use a single Regex for different countries. If you could match all representations you'll get to many false positives. As what may be a number in Switzerland may be something else in Russia, Germany or Ghana. It's all about balancing precision and recall and optimizing the Regex to the countries you really need.

Discussions

regex - Regular expression to match standard 10 digit phone number - Stack Overflow

Help yourself, use libphonenumber (or a fork in your language) ... If you are trying to do this, you are probably doing it wrong. Phone numbers are of varying lengths, include different country codes and in general are wierder than you think. Python and Java both have libraries that will parse phone numbers contextually and you should be using those kind of tools instead of trying to get a regex ... More on stackoverflow.com

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help with regex validation for worldwide email, phone numbers and address

Create a short answer question for the phone number. Click on the three dots (⋮) at the bottom right of the question field and select "Response validation." In the dropdown that appears, select "Regular expression." Choose "Matches" from the next dropdown. Paste the regex pattern into the text field. Add a custom error message if desired, such as "Please enter a valid phone number starting with a + followed by the country code and number." ^\+([0-9]{1,4})[-\s]?([0-9]{1,15})$ This regex should cover a wide range of international phone numbers, but keep in mind that certain country-specific formatting might not be fully captured due to the flexibility required for worldwide usage. If you encounter any specific cases where the regex fails, you may need to adjust the pattern slightly. More on reddit.com

r/GoogleForms

3

2

July 31, 2024

Phone validation regex - Stack Overflow

It's works for 0771234567 and ... to works for 077-1234567 and +077-1234567 and +077-1-23-45-67 and +077-123-45-6-7 ... If you are trying to do this, you are probably doing it wrong. Phone numbers are of varying lengths, include different country codes and in general are wierder than you think. Python and Java both have libraries that will parse phone numbers contextually and you should be using those kind of tools instead of trying to get a regex to do the ... More on stackoverflow.com

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Regex - simple phone number - Stack Overflow

Bring the best of human thought and AI automation together at your work. Explore Stack Internal ... I know there are a ton of regex examples on how to match certain phone number types. For my example I just want to allow numbers and a few special characters. More on stackoverflow.com

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