CLT has precheck now. I'm a Nexus Card holder and my Known Traveler # is in my United profile (Silver Elite ). I fly US Airways and provide my United number, even add my Known Traveler # during OLCI and I'm 0/2 for precheck. Am I not entitled to it or am I doing something wrong? My tickets are booked through a corporate site and I've asked my travel agent if they have a way to submit my known traveler # at booking, but currently OLCI seems to be the earliest I can add it unless I should call US after booking.