[etatoby]

I have had the same mobile number for the past 20 years, throughout dozens of different phones and operators. This is very typical where I live (Southern Europe) where, in fact, WhatsApp is very popular.

Question: how do people you haven't been in contact with manage to find you, if you change your number every 2 years?

[zeroer]

In the past three years, I haven't spent more than 60 cumulative days in a single country. Keeping a single phone number is a nonstarter for me.

People contact me via email. Apple's iMessage is the only chat client I've been able to use effectively, because they tie identity to email, not phone number.