Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC7IU callsign genealogy
Currently held by Martin, Frank D
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 AC7IU's current licensee, walking backwards.
- MARTIN, FRANK DMTgranted 1999-04-01cancelled 2000-08-17
Successor callsigns
Callsigns held now by people who previously held AC7IU.
No current licensee on record previously held this callsign.