Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0PAT callsign genealogy
Currently held by SANNER, PAT F
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 W0PAT's current licensee, walking backwards.
- SANNER, PATRICIA FWIgranted 2004-04-10cancelled 2007-03-06
Successor callsigns
Callsigns held now by people who previously held W0PAT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W0PAT, oldest first.
- LEONARDSON, WARREN I MN1994-04-12 → cancelled 2006-04-14
- SANNER, PAT F MN2017-09-20 active