Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WA4DER callsign genealogy
Currently held by Westwood III, Frank P
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 WA4DER's current licensee, walking backwards.
- Westwood III, Frank PTNgranted 2018-03-12cancelled 2019-02-09
Successor callsigns
Callsigns held now by people who previously held WA4DER.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WA4DER, oldest first.
- WESTWOOD, FRANK P FL2011-09-21 → cancelled 2017-01-19
- Westwood III, Frank P TN2019-02-09 active