Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AK4CZ callsign genealogy
Currently held by Walker, James K
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 AK4CZ's current licensee, walking backwards.
- Walker, James KFLgranted 2013-10-17cancelled 2015-10-14
Successor callsigns
Callsigns held now by people who previously held AK4CZ.
- Billingsby, Terry LFLgranted 2020-09-28
All historical holders
Every license row we've seen with the callsign AK4CZ, oldest first.
- Billingsby, Terry L TN2010-10-25 → cancelled 2010-11-28
- Walker, James K OK2025-11-19 active