Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AA1HF callsign genealogy
Currently held by MC GRATH, STEPHEN T
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 AA1HF's current licensee, walking backwards.
- MC GRATH, STEPHEN TMAgranted 2009-12-11cancelled 2015-09-19
- KA1PERno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held AA1HF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AA1HF, oldest first.
- DONAHUE, RICHARD J MA1993-08-24 → cancelled 2005-08-25
- MC GRATH, STEPHEN T MA2025-07-29 active