Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4ESM callsign genealogy
Currently held by CURTIS, LON A
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 W4ESM's current licensee, walking backwards.
- Medlin, Ernest ScottTNgranted 2005-11-08cancelled 2007-09-15
Successor callsigns
Callsigns held now by people who previously held W4ESM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4ESM, oldest first.
- CURTIS, LON A OK1994-08-17 → cancelled 2006-08-18
- Medlin, Ernest Scott TN2017-06-20 active