Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4MXM callsign genealogy
Currently held by Montero, Marcial
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 W4MXM's current licensee, walking backwards.
- Montero, MarcialNCgranted 2020-05-11cancelled 2020-06-01
Successor callsigns
Callsigns held now by people who previously held W4MXM.
- Montero, MarcialNCgranted 2021-05-28cancelled 2022-07-09