Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4MMC callsign genealogy
Currently held by MCKIBBEN, MICHAEL H
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 K4MMC's current licensee, walking backwards.
- KN4YQMcancelledMcEachern Tower Of Power Amateur Radio ClubGAgranted 2019-09-30cancelled 2019-10-25
Successor callsigns
Callsigns held now by people who previously held K4MMC.
- MCKIBBEN, MICHAEL HFLgranted 2017-05-19
All historical holders
Every license row we've seen with the callsign K4MMC, oldest first.
- MCKIBBEN, MICHAEL H FL2010-07-30 → cancelled 2017-05-19
- McEachern Tower Of Power Amateur Radio Club GA2019-10-25 active