Since WTOP took the callsign from the radio partners at the time, the callsign was a coincidence under ownership of the publisher, since they never stood for " W ashing TO n P ost "; they instead stood for the fact that what was then known as WTOP-AM was " at the TOP of [ the city's ] radio dial " ( WTOP-AM has been known as WFED-AM since 2006, and is now owned by Hubbard Broadcasting, not by the " Post " ).