Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB1BY callsign genealogy
Currently held by WAHBY, RIAD 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 AB1BY's current licensee, walking backwards.
- Finchum, Abigail JNHgranted 2016-03-09cancelled 2017-05-31
Successor callsigns
Callsigns held now by people who previously held AB1BY.
- WAHBY, RIAD SMAgranted 2003-02-15cancelled 2004-05-21
All historical holders
Every license row we've seen with the callsign AB1BY, oldest first.
- WAHBY, RIAD S MA2003-01-28 → cancelled 2003-02-15
- Finchum, Abigail J NH2017-05-31 active