Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4POW callsign genealogy
Currently held by SIMAO, LUIS A
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 W4POW's current licensee, walking backwards.
- SIMAO, LUIS AFLgranted 2012-09-26cancelled 2017-01-18
Successor callsigns
Callsigns held now by people who previously held W4POW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4POW, oldest first.
- CLARK, JAMES L KY1998-11-12 → cancelled 2010-11-13
- SIMAO, LUIS A FL2017-01-18 active