Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4IMB callsign genealogy
Currently held by Imberman, Douglas
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 K4IMB's current licensee, walking backwards.
- Imberman, DouglasFLgranted 2011-08-10cancelled 2013-04-30
Successor callsigns
Callsigns held now by people who previously held K4IMB.
No current licensee on record previously held this callsign.