Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NR4B callsign genealogy
Currently held by GOINS JR, MAX M
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 NR4B's current licensee, walking backwards.
- MANTZ, ROBERT ANCgranted 2017-11-17cancelled 2020-07-24
Successor callsigns
Callsigns held now by people who previously held NR4B.
- Shaw, MichaelALgranted 2018-07-03
All historical holders
Every license row we've seen with the callsign NR4B, oldest first.
- GOINS JR, MAX M TN2001-11-13 → cancelled 2014-01-29
- Shaw, Michael AL2014-02-19 → cancelled 2018-07-03
- MANTZ, ROBERT A NC2020-07-24 active