Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9DAP callsign genealogy
Currently held by Patterson, Daniel 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 K9DAP's current licensee, walking backwards.
- Postel, DavidFLgranted 2026-01-06cancelled 2026-08-15
Successor callsigns
Callsigns held now by people who previously held K9DAP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9DAP, oldest first.
- Patterson, Daniel A AL2001-05-30 → cancelled 2013-05-31
- Postel, David FL2026-08-15 active