Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4OCM callsign genealogy
Currently held by MEDLEY, OTTO 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 W4OCM's current licensee, walking backwards.
- MEDLEY, OTTO CTNgranted 2016-06-28cancelled 2016-11-22
Successor callsigns
Callsigns held now by people who previously held W4OCM.
- MEDLEY, OTTO CTNgranted 2016-06-28cancelled 2016-11-22
All historical holders
Every license row we've seen with the callsign W4OCM, oldest first.
- MEDLEY, OTTO C TN2012-03-22 → cancelled 2016-06-28
- MEDLEY, OTTO C TN2016-11-22 active