Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N9MAB callsign genealogy
Currently held by Graveen, Daniel 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 N9MAB's current licensee, walking backwards.
- Graveen, Daniel JWIgranted 2008-09-04cancelled 2008-10-07
Successor callsigns
Callsigns held now by people who previously held N9MAB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N9MAB, oldest first.
- GRAVEEN, KATHRYN L WI1993-09-14 → cancelled 2005-09-15
- Graveen, Daniel J WI2018-07-11 active