It varies. I have 600 mins and unlimited texts on my contract and rarely use more than a third of those minutes, but I do text a lot more (and get a lot of use out of my mobile data allowance!). The only people I really talk to on the phone frequently are my parents, and 9 times out of 10 it's them who call me. Usually I text/Facebook friends... You can often add extra minutes onto a contract for a certain amount extra if you get a contract and find the minute allowance you have isn't sufficient for your needs (at least, you can with my provider).