Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4CDP callsign genealogy
Currently held by Adams, Amber N
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 W4CDP's current licensee, walking backwards.
- Adams, Amber NTNgranted 2017-03-29cancelled 2019-04-09
Successor callsigns
Callsigns held now by people who previously held W4CDP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4CDP, oldest first.
- RIZK, JOSEF S FL2008-03-18 → cancelled 2016-05-31
- Adams, Amber N TN2019-04-09 active