Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K2JSM callsign genealogy
Currently held by Mercado Sr, Joseph S
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 K2JSM's current licensee, walking backwards.
- Mercado Sr, Joseph SNJgranted 2009-03-19cancelled 2009-04-10
Successor callsigns
Callsigns held now by people who previously held K2JSM.
No current licensee on record previously held this callsign.