Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K8MUD callsign genealogy
Currently held by Fitzpatrick, Frank 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 K8MUD's current licensee, walking backwards.
- FITZPATRICK, FRANK JMIgranted 2014-01-31cancelled 2020-12-29
Successor callsigns
Callsigns held now by people who previously held K8MUD.
- Haskins, Bryan DMIgranted 2018-12-13
All historical holders
Every license row we've seen with the callsign K8MUD, oldest first.
- Haskins, Bryan D MI2008-12-30 → cancelled 2009-02-20
- Fitzpatrick, Frank J MI2020-12-29 active