Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4ZMD callsign genealogy
Currently held by PENDERGRASS, NIXON A
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 K4ZMD's current licensee, walking backwards.
- PENDERGRASS, NIXON AILgranted 2015-09-11cancelled 2018-12-18
Successor callsigns
Callsigns held now by people who previously held K4ZMD.
No current licensee on record previously held this callsign.