Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N5MSM callsign genealogy
Currently held by SHAPIRO, EDWARD J
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 N5MSM's current licensee, walking backwards.
- Mueller, Milam STXgranted 2008-04-30cancelled 2008-06-17
Successor callsigns
Callsigns held now by people who previously held N5MSM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N5MSM, oldest first.
- SHAPIRO, EDWARD J TX1988-06-14 → cancelled 2000-06-15
- Mueller, Milam S TX2018-04-20 active