Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NH7DZ callsign genealogy
Currently held by Rickard, David M
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 NH7DZ's current licensee, walking backwards.
- Rickard, David MHIgranted 2015-12-01cancelled 2020-05-12
Successor callsigns
Callsigns held now by people who previously held NH7DZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NH7DZ, oldest first.
- ISHIBASHI III, WALLACE A HI2001-03-13 → cancelled 2013-03-14
- Rickard, David M AZ2020-05-12 active