Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB3OB callsign genealogy
Currently held by Throckmorton, Thomas E
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 AB3OB's current licensee, walking backwards.
- Throckmorton, Thomas EPAgranted 2011-06-16cancelled 2011-08-17
Successor callsigns
Callsigns held now by people who previously held AB3OB.
- Throckmorton, Thomas EPAgranted 2013-04-30cancelled 2025-05-01