Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N5JLM callsign genealogy
Currently held by GRINDSTAFF JR, PAUL A
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 N5JLM's current licensee, walking backwards.
- MATHIS, JOSHUA LWAgranted 2019-01-02cancelled 2019-08-30
Successor callsigns
Callsigns held now by people who previously held N5JLM.
- MATHIS, JOSHUA LWAgranted 2019-08-30
All historical holders
Every license row we've seen with the callsign N5JLM, oldest first.
- GRINDSTAFF JR, PAUL A TX2003-07-22 → cancelled 2015-10-20
- MATHIS, JOSHUA L WA2019-08-30 → cancelled 2020-08-25