Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB5SM callsign genealogy
Currently held by McCay, Malcolm S
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 AB5SM's current licensee, walking backwards.
- McCay, Malcolm SARgranted 2016-06-08cancelled 2016-08-02
Successor callsigns
Callsigns held now by people who previously held AB5SM.
No current licensee on record previously held this callsign.