Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KK4OT callsign genealogy
Currently held by Cofield, Harold 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 KK4OT's current licensee, walking backwards.
- N4PWAno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held KK4OT.
- Cofield, Harold WALgranted 2011-05-24cancelled 2023-05-20