Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AL7MK callsign genealogy
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 AL7MK's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held AL7MK.
- Twiggs, David JMIgranted 2023-05-27cancelled 2026-09-04