Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6RL callsign genealogy
Currently held by Osterhoudt, David 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 K6RL's current licensee, walking backwards.
- Osterhoudt, David LCAgranted 2004-05-10cancelled 2008-09-20
Successor callsigns
Callsigns held now by people who previously held K6RL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K6RL, oldest first.
- Mc Grew, Merwin E AZ2004-10-25 → cancelled 2006-09-01
- Osterhoudt, David L CA2018-08-24 active