Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC0CK callsign genealogy
Currently held by Lukins, Mark L
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 AC0CK's current licensee, walking backwards.
- Brown, Samuel LNMgranted 2017-07-05cancelled 2019-07-27
Successor callsigns
Callsigns held now by people who previously held AC0CK.
- Lukins, Mark LIAgranted 2026-05-01
All historical holders
Every license row we've seen with the callsign AC0CK, oldest first.
- Lukins, Mark L IA2002-08-19 → cancelled 2006-04-18
- Brown, Samuel L NM2019-07-27 active