What's the longest possible worldwide phone number I should consider in SQL varchar(length) for phone

Question

What\'s the longest possible worldwide phone number I should consider in SQL varchar(length) for phone.

considerations:

• + for country code

Answer 1

Well considering there's no overhead difference between a varchar(30) and a varchar(100) if you're only storing 20 characters in each, err on the side of caution and just make it 50.