Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD8F callsign genealogy
Currently held by COE, CHRISTOPHER T
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 AD8F's current licensee, walking backwards.
- COE, CHRISTOPHER TOHgranted 2010-03-10cancelled 2013-09-24
Successor callsigns
Callsigns held now by people who previously held AD8F.
- Farler, David MCAgranted 2011-09-03cancelled 2023-09-06
All historical holders
Every license row we've seen with the callsign AD8F, oldest first.
- POLAKOWSKI, FELIX MI1998-04-08 → cancelled 2010-04-09
- Farler, David M OH2010-07-27 → cancelled 2011-09-03
- COE, CHRISTOPHER T DE2023-08-22 active