Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N5DEF callsign genealogy
Currently held by ANDERSON, DELILAH R
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 N5DEF's current licensee, walking backwards.
- Rockwell, David ANYgranted 2018-11-14cancelled 2026-01-23
Successor callsigns
Callsigns held now by people who previously held N5DEF.
- ANDERSON, DELILAH RTXgranted 2011-06-09cancelled 2023-07-18
All historical holders
Every license row we've seen with the callsign N5DEF, oldest first.
- ANDERSON, DELILAH R HI1998-08-19 → cancelled 2001-06-01
- Rockwell, David A NY2026-01-23 active