Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB7SC callsign genealogy
Currently held by COLGROVE, SCOTT 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 AB7SC's current licensee, walking backwards.
- Colgrove, Scott CMTgranted 2003-02-10cancelled 2005-06-21
Successor callsigns
Callsigns held now by people who previously held AB7SC.
- Baker, Gregory RAZgranted 2001-08-27cancelled 2013-09-04
All historical holders
Every license row we've seen with the callsign AB7SC, oldest first.
- Baker, Gregory R AZ1996-08-19 → cancelled 2001-08-27
- COLGROVE, SCOTT C ID2025-04-02 active