Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4ACP callsign genealogy
Currently held by COPP, ALBERT G
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 N4ACP's current licensee, walking backwards.
- Porter, Thomas DGAgranted 2009-09-23cancelled 2009-11-28
Successor callsigns
Callsigns held now by people who previously held N4ACP.
- COPP, ALBERT GGAgranted 1998-03-03cancelled 2004-03-02
All historical holders
Every license row we've seen with the callsign N4ACP, oldest first.
- COPP, ALBERT G GA1998-03-03 → cancelled 2002-02-20
- Porter, Thomas D FL2019-10-02 active