Callsign: K5OST Class: Advanced Name: EFFRON, FRANK S City: TULSA State: OK Zipcode: 74135 Status: Expired Grant Date: 01/28/2005 Expires: 01/28/2015 Uls: FCC Info
K5OST - Ham operator in TULSA, OK
Search any USA Ham Radio Callsign Database updated once a week Ham Callsigns search - version 2.1