Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N0MXB callsign genealogy
Currently held by Heiser, Robert 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 N0MXB's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held N0MXB.
- Heiser, Robert SMEgranted 2003-01-02cancelled 2005-07-29