Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AD5ZY callsign genealogy
Currently held by Krantz, Robert 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 AD5ZY's current licensee, walking backwards.
- Krantz, Robert AARgranted 2006-12-01cancelled 2007-03-13
Successor callsigns
Callsigns held now by people who previously held AD5ZY.
- Krantz, Robert AFLgranted 2017-04-04