Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WO1MAN callsign genealogy
Currently held by Roth Colson, Esther J
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 WO1MAN's current licensee, walking backwards.
- Roth Colson, Esther JMOgranted 2015-02-09cancelled 2017-03-20
Successor callsigns
Callsigns held now by people who previously held WO1MAN.
- ROTH COLSON, ESTHER JMOgranted 2018-01-17