Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N1ZTT callsign genealogy
Currently held by Acker, Daniel B
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 N1ZTT's current licensee, walking backwards.
- Acker, Daniel BCOgranted 2021-05-24cancelled 2021-09-03
Successor callsigns
Callsigns held now by people who previously held N1ZTT.
- ZALER JR, PAUL JSCgranted 2019-11-26
All historical holders
Every license row we've seen with the callsign N1ZTT, oldest first.
- ZALER JR, PAUL J CT2008-08-26 → cancelled 2009-12-15
- Acker, Daniel B CO2021-09-03 active