Confidence: Medium · Source: FCC ULS · As of 2026-09-11
AB1SW callsign genealogy
Currently held by Maxson, John B
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 AB1SW's current licensee, walking backwards.
- Maxson, John BNHgranted 2013-01-30cancelled 2013-03-09
Successor callsigns
Callsigns held now by people who previously held AB1SW.
No current licensee on record previously held this callsign.