Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KF7BOB callsign genealogy
Currently held by Mulvihill, Robert A
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 KF7BOB's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KF7BOB.
- GRANDSTRAND, JUDY AWAgranted 2009-04-21cancelled 2021-04-22
All historical holders
Every license row we've seen with the callsign KF7BOB, oldest first.
- GRANDSTRAND, JUDY A WA2009-04-01 → cancelled 2009-04-21
- Mulvihill, Robert A CO2015-10-27 active