Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AA7SF callsign genealogy
Currently held by Baldwin Sr, Ronald 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 AA7SF's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held AA7SF.
- Baldwin Sr, Ronald JMOgranted 2012-10-10cancelled 2024-12-04