Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K3HR callsign genealogy
Currently held by THOMAS, RODERICK S
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 K3HR's current licensee, walking backwards.
- THOMAS, RODERICK SPAgranted 2018-07-03cancelled 2018-08-11
Successor callsigns
Callsigns held now by people who previously held K3HR.
- LAMBERT, HAROLD RCTgranted 2026-05-12
All historical holders
Every license row we've seen with the callsign K3HR, oldest first.
- Lambert, Ross H NJ2006-12-16 → cancelled 2016-07-23
- THOMAS, RODERICK S PA2018-08-11 active