Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4EMC callsign genealogy
Currently held by Topping Sr, Christopher 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 N4EMC's current licensee, walking backwards.
- Topping Sr, Christopher LVAgranted 2007-09-21cancelled 2007-10-12
Successor callsigns
Callsigns held now by people who previously held N4EMC.
No current licensee on record previously held this callsign.