Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1DEO callsign genealogy
Currently held by CONSTANTINE, ANDREW M
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 W1DEO's current licensee, walking backwards.
- Constantine, Andrew MMEgranted 2016-02-08cancelled 2016-06-21
Successor callsigns
Callsigns held now by people who previously held W1DEO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W1DEO, oldest first.
- STROUT, HERBERT F ME2006-03-16 → cancelled 2014-07-01
- CONSTANTINE, ANDREW M ME2026-07-25 active