Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NG5S callsign genealogy
Currently held by COLBY, JOHN B
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 NG5S's current licensee, walking backwards.
- Smith, Thomas EARgranted 2002-04-09cancelled 2002-07-20
Successor callsigns
Callsigns held now by people who previously held NG5S.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NG5S, oldest first.
- COLBY, JOHN B NM1988-06-21 → cancelled 2000-06-22
- SMITH, THOMAS E AR2023-02-24 active