Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K5EFM callsign genealogy
Currently held by Powell III, Thomas 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 K5EFM's current licensee, walking backwards.
- Powell III, Thomas PTNgranted 2023-09-30cancelled 2023-10-20
Successor callsigns
Callsigns held now by people who previously held K5EFM.
No current licensee on record previously held this callsign.