Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KR6ZY callsign genealogy
Currently held by Smith, Mark T
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 KR6ZY's current licensee, walking backwards.
- Milligan, Judy HCAgranted 2023-02-02cancelled 2023-04-21
Successor callsigns
Callsigns held now by people who previously held KR6ZY.
- Smith, Mark TCAgranted 2021-03-09
All historical holders
Every license row we've seen with the callsign KR6ZY, oldest first.
- Smith, Mark T CA2011-04-12 → cancelled 2021-03-09
- Milligan, Judy H CA2023-04-21 active