Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4MK callsign genealogy
Currently held by ROSADO, MITCHELL A
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 KP4MK's current licensee, walking backwards.
- ROSADO, MITCHELL APRgranted 2013-10-17cancelled 2015-05-12
Successor callsigns
Callsigns held now by people who previously held KP4MK.
All historical holders
Every license row we've seen with the callsign KP4MK, oldest first.
- ROSADO, MITCHELL A PR2015-05-12 → cancelled 2017-09-23
- —— → cancelled 1998-04-24