Just opened a phone account via AT&T because I arrived last week for my internship in DC. I am from the Netherlands, so I only just have a few contacts. I missed a call, but returned the call. I thought it probably would be someone who called me from my internship, but when I called back a miss answered: 'card services, may I have your account number?'
Rather strange, because I just opened this account at AT&T. Hope it won't happen again.