Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4ATP callsign genealogy
Currently held by PETERSON, ALBERT T
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 W4ATP's current licensee, walking backwards.
- Poole, Thomas SSCgranted 2017-10-19cancelled 2020-01-03
Successor callsigns
Callsigns held now by people who previously held W4ATP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4ATP, oldest first.
- PETERSON, ALBERT T FL2007-06-26 → cancelled 2019-09-18
- POOLE, THOMAS S SC2020-01-03 active