Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N5GCS callsign genealogy
Currently held by Spaulding, Martin C
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 N5GCS's current licensee, walking backwards.
- Spaulding, Martin CTXgranted 2017-10-20cancelled 2017-12-19
Successor callsigns
Callsigns held now by people who previously held N5GCS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N5GCS, oldest first.
- BUTTERWORTH SR, RICHARD W TX1988-08-30 → cancelled 2000-09-01
- Spaulding, Martin C TX2017-12-19 active