Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AA1MC callsign genealogy
Currently held by EICHNER, WILLIAM A
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 AA1MC's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held AA1MC.
No current licensee on record previously held this callsign.