Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N5MFZ callsign genealogy
Currently held by Naylor, Michael 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 N5MFZ's current licensee, walking backwards.
- Naylor, Michael JNMgranted 2018-08-13cancelled 2019-09-27
Successor callsigns
Callsigns held now by people who previously held N5MFZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N5MFZ, oldest first.
- ROACH, SAMMIE D TX1994-09-13 → cancelled 2005-10-06
- Naylor, Michael J NM2019-09-27 active