Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD0PR callsign genealogy
Currently held by Spearnak, Mark R
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 AD0PR's current licensee, walking backwards.
- Spearnak, Mark RCOgranted 2014-06-18cancelled 2015-06-19
Successor callsigns
Callsigns held now by people who previously held AD0PR.
No current licensee on record previously held this callsign.