Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K7RDH callsign genealogy
Currently held by DEARDORFF, STANLEY R
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 K7RDH's current licensee, walking backwards.
- DEARDORFF, STANLEY RVAgranted 1997-01-14cancelled 2005-06-25
Successor callsigns
Callsigns held now by people who previously held K7RDH.
- HATTER JR, ROBERT TAZgranted 2026-05-20