Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N1DVM callsign genealogy
Currently held by MARA, DONALD J
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 N1DVM's current licensee, walking backwards.
- LANDERS, DAVID ATXgranted 2007-08-10cancelled 2007-09-05
Successor callsigns
Callsigns held now by people who previously held N1DVM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N1DVM, oldest first.
- MARA, DONALD J RI1989-02-14 → cancelled 2001-02-15
- LANDERS DVM, DAVID A TX2017-11-08 active