Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC1CP callsign genealogy
Currently held by Harrison, Mark 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 AC1CP's current licensee, walking backwards.
- Harrison, Mark CMAgranted 2011-08-23cancelled 2017-07-10
Successor callsigns
Callsigns held now by people who previously held AC1CP.
No current licensee on record previously held this callsign.