Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4ZPO callsign genealogy
Currently held by MC COY, RICHARD W
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 W4ZPO's current licensee, walking backwards.
- KN4PDRcancelledQuarter Century Wireless Assoc Chapter 121FLgranted 2018-09-24cancelled 2018-10-19
Successor callsigns
Callsigns held now by people who previously held W4ZPO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4ZPO, oldest first.
- MC COY, RICHARD W FL2003-05-05 → cancelled 2015-08-04
- Quarter Century Wireless Assoc Chapter 121 FL2018-10-19 active