Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4CJA callsign genealogy
Currently held by AHRENS, CLIFFORD J
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 K4CJA's current licensee, walking backwards.
- AHRENS, CLIFFORD JGAgranted 1997-07-30cancelled 2001-07-03
Successor callsigns
Callsigns held now by people who previously held K4CJA.
No current licensee on record previously held this callsign.