Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K1TFS callsign genealogy
Currently held by CUMMINS, CHARLES D
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 K1TFS's current licensee, walking backwards.
- Cummins, Charles DFLgranted 2001-11-07cancelled 2002-07-30
Successor callsigns
Callsigns held now by people who previously held K1TFS.
No current licensee on record previously held this callsign.