Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AG5PT callsign genealogy
Currently held by Shelburg, Derek 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 AG5PT's current licensee, walking backwards.
- Shelburg, Derek STXgranted 2017-09-06cancelled 2018-05-16
Successor callsigns
Callsigns held now by people who previously held AG5PT.
No current licensee on record previously held this callsign.