Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC0TH callsign genealogy
Currently held by McNabb, Warren N
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 AC0TH's current licensee, walking backwards.
- McNabb, Warren NMOgranted 2010-02-16cancelled 2010-09-02
Successor callsigns
Callsigns held now by people who previously held AC0TH.
No current licensee on record previously held this callsign.