Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K2FFF callsign genealogy
Currently held by WITMER, MARK L
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 K2FFF's current licensee, walking backwards.
- WITMER, MARK LFLgranted 2016-07-13cancelled 2025-01-25
Successor callsigns
Callsigns held now by people who previously held K2FFF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K2FFF, oldest first.
- FISTS of Long Island CW Club NY2000-05-12 → cancelled 2012-05-15
- WITMER, MARK L FL2025-01-25 active