uls-tracker
Sign in
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.

  1. KC8OROcancelled· E
    COE, CHRISTOPHER TOHgranted 2010-03-10cancelled 2013-09-24

Successor callsigns

Callsigns held now by people who previously held AD8F.

  1. NJ6Uexpired· E
    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 MI
    1998-04-08 → cancelled 2010-04-09
  • Farler, David M OH
    2010-07-27 → cancelled 2011-09-03
  • COE, CHRISTOPHER T DE
    2023-08-22 active