Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N5MDM callsign genealogy
Currently held by Crites, David 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 N5MDM's current licensee, walking backwards.
- McCAIN, MASON DTXgranted 2009-02-24cancelled 2009-05-05
Successor callsigns
Callsigns held now by people who previously held N5MDM.
- Crites, David LARgranted 2017-02-16
All historical holders
Every license row we've seen with the callsign N5MDM, oldest first.
- Crites, David L MI2003-10-28 → cancelled 2007-04-13
- McCAIN, MASON D TX2019-06-19 active