I was wondering under what circumstances a call sign would show up on this site and the ARRL site but not the FCC license search? The same person shows up here and on the ARRL search. The ARRL site lists the FRN number but that doesn't show up on the FCC search either. I am purposely not listing the call sign to prevent unwanted attention for that person. I was wondering if a person can arrange for their information to not be searchable on the FCC site.