Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K5SPM callsign genealogy
Currently held by Murphy, Sean
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 K5SPM's current licensee, walking backwards.
- Murphy, SeanGAgranted 2025-04-08cancelled 2025-05-23
Successor callsigns
Callsigns held now by people who previously held K5SPM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K5SPM, oldest first.
- Monroe, Shawn P TX2009-04-10 → cancelled 2021-04-13
- Murphy, Sean GA2025-05-23 active