Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AG4CR callsign genealogy
Currently held by LAMB, DAVID 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 AG4CR's current licensee, walking backwards.
- Roberts III, Charles KFLgranted 2024-11-06cancelled 2025-12-09
Successor callsigns
Callsigns held now by people who previously held AG4CR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AG4CR, oldest first.
- LAMB, DAVID M FL2010-12-30 → cancelled 2023-02-22
- Roberts III, Charles K FL2025-12-09 active