Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7ZMC callsign genealogy
Currently held by Ingalsbe, Derek 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 K7ZMC's current licensee, walking backwards.
- Ingalsbe, Derek CWAgranted 2009-01-23cancelled 2018-12-15
Successor callsigns
Callsigns held now by people who previously held K7ZMC.
No current licensee on record previously held this callsign.