Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W5LFO callsign genealogy
Currently held by SIMS, JOHN G
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 W5LFO's current licensee, walking backwards.
- SIMS, JOHN GTXgranted 2014-04-23cancelled 2014-07-15
Successor callsigns
Callsigns held now by people who previously held W5LFO.
No current licensee on record previously held this callsign.