Confidence: Medium · Source: FCC ULS · As of 2026-09-14
NM4DT callsign genealogy
Currently held by TELLER, DAVID W
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 NM4DT's current licensee, walking backwards.
- TELLER, DAVID WVAgranted 2011-02-17cancelled 2011-04-30
Successor callsigns
Callsigns held now by people who previously held NM4DT.
- TELLER, DAVID WNMgranted 2021-02-06