Rick wasn't excessively private about methods of contact, but this particular cell phone number happened to be one he carried 24/7, rather than the one he turned off when he was off the clock. If the phone didn't get turned off, he didn't sleep. Rick liked his sleep; this phone, he kept on, and the other lived fifteen hour days, at most. "Austin." He didn't look at the numbers--there usually wasn't much of a point, they were never the sort easily identifiable.