Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4RGF callsign genealogy
Currently held by Sickels, Robert M
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 W4RGF's current licensee, walking backwards.
- SICKELS, RONDA WNCgranted 2006-06-16cancelled 2008-03-28
Successor callsigns
Callsigns held now by people who previously held W4RGF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4RGF, oldest first.
- Sickels, Robert M NC2005-05-31 → cancelled 2006-04-12
- SICKELS, RONDA W NC2018-01-09 active