Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N6ZRO callsign genealogy
Currently held by MENDOZA, EPONI N
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 N6ZRO's current licensee, walking backwards.
- Haddon, Matthew JCAgranted 2022-07-19cancelled 2022-08-06
Successor callsigns
Callsigns held now by people who previously held N6ZRO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N6ZRO, oldest first.
- MENDOZA, EPONI N CA1990-07-10 → cancelled 2002-07-11
- Haddon, Matthew J CA2022-08-06 active