Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7OAP callsign genealogy
Currently held by CRABB, DOUGLAS B
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 K7OAP's current licensee, walking backwards.
- CRABB, DOUGLAS BAZgranted 2017-03-13cancelled 2017-04-11
Successor callsigns
Callsigns held now by people who previously held K7OAP.
No current licensee on record previously held this callsign.