Reply To: Change telephone nr formatting? (Jongware, I need your help buddy!)

That's really good, Roland! Pat on the back from Holland.

I had a go at it, and you seem correct: it needs 5 groups (perhaps 4, if you don't include the '6' and put it in the replace).

You are in luck if all of the phone numbers are formatted the way you shown, otherwise it'd need .. let me see … This monstrosity:

Find

Replace

— and you'd better hope all of them start with the same “31 6” prefix, because InDesign's GREP stops counting at $9!