Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4TAM callsign genealogy
Currently held by MAXWELL, ROBERT G
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 K4TAM's current licensee, walking backwards.
- Hall, Harold EVAgranted 2013-08-05cancelled 2015-03-21
Successor callsigns
Callsigns held now by people who previously held K4TAM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4TAM, oldest first.
- MAXWELL, ROBERT G NC1999-03-24 → cancelled 1999-07-26
- HALL, HAROLD E VA2025-01-15 active