Regular expression for 10 or 13 digits

Question

I tried this, but in this case, 11 and 12 are allowed too:

^[0-9]{10,13}$

I need just 10 or 13.

I've fixed a couple of typos in your question. Please review my edit to make sure I didn't change your intended meaning. — Keith Thompson
– Keith Thompson, Commented Mar 26, 2014 at 20:32

Ulugbek Umirov · Accepted Answer · 2014-03-26 20:31:57Z

6

You can do also

^\d{10}(\d{3})?$

10 digits + optional 3 digits

answered Mar 26, 2014 at 20:31

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Comments

Khaelex · Accepted Answer · 2014-03-26 20:35:03Z

4

You could use alternation (matches the regex before or after):

^[0-9]{10}|[0-9]{13}$

This would match 10 or 13 digits.

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answered Mar 26, 2014 at 20:30

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