Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N7DAY callsign genealogy
Currently held by DUMAS, MARY L
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 N7DAY's current licensee, walking backwards.
- ANDERSEN, MICHAELMTgranted 2014-06-11cancelled 2015-12-29
Successor callsigns
Callsigns held now by people who previously held N7DAY.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N7DAY, oldest first.
- DUMAS, MARY L AZ1996-03-21 → cancelled 2008-03-22
- ANDERSEN, MICHAEL MT2025-11-26 active