Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4EQS callsign genealogy
Currently held by Rosendale, Martin P
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 K4EQS's current licensee, walking backwards.
- Rosendale, Martin PVAgranted 2024-02-21cancelled 2024-04-09
Successor callsigns
Callsigns held now by people who previously held K4EQS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4EQS, oldest first.
- CRABB SR, M ALEXANDER TN1987-08-11 → cancelled 1999-08-16
- Rosendale, Martin P VA2024-04-09 active