Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AJ4ER callsign genealogy
Currently held by Birdwell, James 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 AJ4ER's current licensee, walking backwards.
- Birdwell, James TSCgranted 2007-10-22cancelled 2008-01-23
Successor callsigns
Callsigns held now by people who previously held AJ4ER.
- Birdwell, James TSCgranted 2021-11-02