Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB0ZP callsign genealogy
Currently held by Martens, Steven J
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 AB0ZP's current licensee, walking backwards.
- Martens, Steven JMNgranted 2003-11-13cancelled 2003-11-20
Successor callsigns
Callsigns held now by people who previously held AB0ZP.
- Martens, Steven JMNgranted 2014-01-04cancelled 2026-03-07