Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K5VMK callsign genealogy
Currently held by Sheldon, Robert S
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 K5VMK's current licensee, walking backwards.
- Sheldon, Robert STXgranted 2013-11-18cancelled 2020-11-17
Successor callsigns
Callsigns held now by people who previously held K5VMK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K5VMK, oldest first.
- FOLEY, JAMES B TX1994-07-13 → cancelled 2006-07-14
- Sheldon, Robert S TX2020-11-17 active