Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1CPU callsign genealogy
Currently held by BRUMBAUGH, DAVID 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 K1CPU's current licensee, walking backwards.
- BRUMBAUGH, DAVID Rcancelled 1998-01-14
Successor callsigns
Callsigns held now by people who previously held K1CPU.
No current licensee on record previously held this callsign.