Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KA4AMP callsign genealogy
Currently held by Litty, Michael C
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 KA4AMP's current licensee, walking backwards.
- Litty, Michael CNCgranted 2021-10-20cancelled 2021-11-16
Successor callsigns
Callsigns held now by people who previously held KA4AMP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KA4AMP, oldest first.
- GRIFFEY JR, HENRY L TN1994-12-30 → cancelled 2007-01-04
- Litty, Michael C NC2021-11-16 active