Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB3SQ callsign genealogy
Currently held by Martin, Charles H
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 AB3SQ's current licensee, walking backwards.
- Martin, Charles HPAgranted 2013-04-22cancelled 2013-06-20
Successor callsigns
Callsigns held now by people who previously held AB3SQ.
- Martin, Charles HPAgranted 2025-01-11