Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB1OS callsign genealogy
Currently held by Bishop, Nicholas R
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 AB1OS's current licensee, walking backwards.
- Bishop, Nicholas RVTgranted 2010-07-23cancelled 2011-04-15
Successor callsigns
Callsigns held now by people who previously held AB1OS.
No current licensee on record previously held this callsign.