Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7ZDP callsign genealogy
Currently held by Guinnee, David J
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 K7ZDP's current licensee, walking backwards.
- Guinnee, David JIDgranted 2021-06-07cancelled 2021-08-23
Successor callsigns
Callsigns held now by people who previously held K7ZDP.
No current licensee on record previously held this callsign.