Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N5SXV callsign genealogy
Currently held by PORTER, MARTIN L
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 N5SXV's current licensee, walking backwards.
- Porter, Martin LTXgranted 2013-07-10cancelled 2013-08-16
Successor callsigns
Callsigns held now by people who previously held N5SXV.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N5SXV, oldest first.
- PORTER, MARTIN L TX1992-12-22 → cancelled 2004-12-23
- Porter, Martin L TX2024-11-30 active