Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N5MSH callsign genealogy
Currently held by Hammons, Mark 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 N5MSH's current licensee, walking backwards.
- Hammons, Mark STXgranted 2011-07-19cancelled 2018-12-11
Successor callsigns
Callsigns held now by people who previously held N5MSH.
- Swope, PHEBE CCOgranted 2021-09-03
All historical holders
Every license row we've seen with the callsign N5MSH, oldest first.
- SWOPE, PHEBE C TX2008-12-08 → cancelled 2011-11-29
- Hammons, Mark S TX2018-12-11 active