Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K7OHO callsign genealogy
Currently held by Nolan, Michael 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 K7OHO's current licensee, walking backwards.
- JACKSON, GORDON CNVgranted 2011-05-13cancelled 2011-06-21
Successor callsigns
Callsigns held now by people who previously held K7OHO.
- Nolan, Michael JMIgranted 2022-08-09
All historical holders
Every license row we've seen with the callsign K7OHO, oldest first.
- Nolan, Michael J MI2000-11-21 → cancelled 2002-10-01
- JACKSON, GORDON C NV2021-04-08 active