Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WD4CDP callsign genealogy
Currently held by SCHUMACHER, ALISA A
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 WD4CDP's current licensee, walking backwards.
- Holland, Delana GTNgranted 2017-04-10cancelled 2019-04-09
Successor callsigns
Callsigns held now by people who previously held WD4CDP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WD4CDP, oldest first.
- SCHUMACHER, ALISA A FL1996-05-02 → cancelled 2008-05-03
- Holland, Delana G TN2019-04-09 active