Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K1RHK callsign genealogy
Currently held by Krech, Robert H
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 K1RHK's current licensee, walking backwards.
- Krech, Robert HMAgranted 2016-06-03cancelled 2018-03-23
Successor callsigns
Callsigns held now by people who previously held K1RHK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K1RHK, oldest first.
- SPILLER, WILLIAM J NH2000-03-10 → cancelled 2012-03-13
- Krech, Robert H MA2018-03-23 active