Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0MKS callsign genealogy
Currently held by Sarlo, Mark K
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 W0MKS's current licensee, walking backwards.
- Sarlo, Mark KCOgranted 2022-04-18cancelled 2022-05-10
Successor callsigns
Callsigns held now by people who previously held W0MKS.
No current licensee on record previously held this callsign.