Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N1SHT callsign genealogy
Currently held by MROCZKO, ZBIGNIEW
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 N1SHT's current licensee, walking backwards.
- MURARI MOHAN, NishitMAgranted 2011-02-03cancelled 2017-12-22
Successor callsigns
Callsigns held now by people who previously held N1SHT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N1SHT, oldest first.
- MROCZKO, ZBIGNIEW NH1994-07-13 → cancelled 2006-07-14
- MURARI MOHAN, Nishit MA2017-12-22 active