Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AL5P callsign genealogy
Currently held by JOHNSON, DAVID C
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 AL5P's current licensee, walking backwards.
- JOHNSON, DAVID CAKgranted 2014-01-16cancelled 2020-05-23
Successor callsigns
Callsigns held now by people who previously held AL5P.
- Osterhoudt, Robert AAKgranted 2026-03-17cancelled 2026-05-09
All historical holders
Every license row we've seen with the callsign AL5P, oldest first.
- Osterhoudt, Robert A AK2015-11-23 → cancelled 2016-04-22
- JOHNSON, DAVID C TX2020-05-23 active