Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC4KU callsign genealogy
Currently held by SANFORD, ALAN C
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 AC4KU's current licensee, walking backwards.
- SANFORD, CHRISTOPHER APAgranted 2013-01-01cancelled 2016-08-23
Successor callsigns
Callsigns held now by people who previously held AC4KU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AC4KU, oldest first.
- SANFORD, ALAN C FL2004-02-06 → cancelled 2016-04-13
- SANFORD, CHRISTOPHER A PA2016-08-23 active