Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AA4ZM callsign genealogy
Currently held by LENTZ, ABIGAIL S
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 AA4ZM's current licensee, walking backwards.
- LENTZ, ABIGAIL SWAgranted 2013-07-12cancelled 2019-04-06
Successor callsigns
Callsigns held now by people who previously held AA4ZM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AA4ZM, oldest first.
- ZIEHM JR, ARTHUR VA2006-06-21 → cancelled 2018-09-12
- LENTZ, ABIGAIL S TN2019-04-06 active