Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KF5GFF callsign genealogy
Currently held by Tellez, Mark 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 KF5GFF's current licensee, walking backwards.
- Tellez, Mark BTXgranted 2002-04-16cancelled 2010-04-15
Successor callsigns
Callsigns held now by people who previously held KF5GFF.
- Tellez, Mark BWAgranted 2024-12-03