Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K5ZAM callsign genealogy
Currently held by SOUTHWORTH, GEORGE C
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by K5ZAM's current licensee, walking backwards.
- SOUTHWORTH, GEORGE COKgranted 1998-12-02cancelled 2000-02-22
Successor callsigns
Callsigns held now by people who previously held K5ZAM.
No current licensee on record previously held this callsign.