Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4MBA callsign genealogy
Currently held by HAYMAKER, TERESA 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 N4MBA's current licensee, walking backwards.
- HAYMAKER, TERESA LWAgranted 2016-02-02cancelled 2016-06-18
Successor callsigns
Callsigns held now by people who previously held N4MBA.
- HAYMAKER, TERESA LWAgranted 2016-02-02cancelled 2016-06-18
All historical holders
Every license row we've seen with the callsign N4MBA, oldest first.
- HAYMAKER, TERESA L WA2014-03-13 → cancelled 2016-02-02
- HAYMAKER, TERESA L UT2026-07-07 active