Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N3ZMC callsign genealogy
Currently held by CAPLAN, MICHAEL I
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 N3ZMC's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held N3ZMC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N3ZMC, oldest first.
- CAVANAUGH, TIM M PA1997-06-03 → cancelled 2009-06-04
- CAPLAN, MICHAEL I MD2011-12-09 → cancelled 2023-12-12