Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KV4EM callsign genealogy
Currently held by Spencer, Dennis 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 KV4EM's current licensee, walking backwards.
- SPENCER, DENNIS RGAgranted 1991-06-25cancelled 2000-02-23
Successor callsigns
Callsigns held now by people who previously held KV4EM.
- Spencer, Dennis RNCgranted 2000-03-28cancelled 2012-03-29