Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB3EZ callsign genealogy
Currently held by ESTES, 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 KB3EZ's current licensee, walking backwards.
- ESTES, MARK KPAgranted 2009-05-13cancelled 2016-05-07
Successor callsigns
Callsigns held now by people who previously held KB3EZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB3EZ, oldest first.
- BARRY, CHARLES P PA2003-11-25 → cancelled 2016-02-17
- ESTES, MARK K PA2016-05-07 active