Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4TWO callsign genealogy
Currently held by CALVERT, GARY L
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 K4TWO's current licensee, walking backwards.
- Dison, Colbie PALgranted 2018-06-20cancelled 2018-10-12
Successor callsigns
Callsigns held now by people who previously held K4TWO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4TWO, oldest first.
- CALVERT, GARY L TN2005-08-09 → cancelled 2017-08-10
- Dison, Colbie P AL2018-10-12 active