Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7AMM callsign genealogy
Currently held by DIEHL JR, EBER F
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 W7AMM's current licensee, walking backwards.
- MC KENZIE, ALEX MWAgranted 2014-05-12cancelled 2015-06-09
Successor callsigns
Callsigns held now by people who previously held W7AMM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W7AMM, oldest first.
- DIEHL JR, EBER F FL1994-02-22 → cancelled 2002-09-06
- MC KENZIE, ALEX M WA2015-06-09 active