Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC4ABE callsign genealogy
Currently held by Grant, 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 KC4ABE's current licensee, walking backwards.
- Grant, Michael JNCgranted 2023-03-07cancelled 2023-04-07
Successor callsigns
Callsigns held now by people who previously held KC4ABE.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC4ABE, oldest first.
- SUSMUTH, HOMER J MA1997-05-07 → cancelled 2009-05-08
- Grant, Michael J NC2023-04-07 active