Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N3CLF callsign genealogy
Currently held by McAdoo, David Z
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 N3CLF's current licensee, walking backwards.
- McAdoo, David ZMDgranted 2017-02-06cancelled 2017-06-20
Successor callsigns
Callsigns held now by people who previously held N3CLF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N3CLF, oldest first.
- BOOTH, JOHN A FL2011-03-30 → cancelled 2016-12-26
- McAdoo, David Z MD2017-06-20 active