Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KR7SPY callsign genealogy
Currently held by Marsh, Crispin E
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 KR7SPY's current licensee, walking backwards.
- Marsh, Crispin EMTgranted 2025-11-21cancelled 2025-12-12
Successor callsigns
Callsigns held now by people who previously held KR7SPY.
No current licensee on record previously held this callsign.