Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K5RCX callsign genealogy
Currently held by Heck, Darrell
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 K5RCX's current licensee, walking backwards.
- Heck, DarrellOKgranted 2018-08-31cancelled 2019-05-21
Successor callsigns
Callsigns held now by people who previously held K5RCX.
- Heck, DarrellOKgranted 2019-05-21cancelled 2019-12-17