Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4TCK callsign genealogy
Currently held by DUNLAP, CARL W
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 W4TCK's current licensee, walking backwards.
- DUNLAP, CARL WFLgranted 2009-11-17cancelled 2017-06-23
Successor callsigns
Callsigns held now by people who previously held W4TCK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4TCK, oldest first.
- LAMP, CLARENCE K VA1995-11-28 → cancelled 2007-11-29
- DUNLAP, CARL W FL2017-06-23 active