Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7XP callsign genealogy
Currently held by WATERHOUSE JR, CARL L
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 W7XP's current licensee, walking backwards.
- WING, THOMAS DWYgranted 2014-10-15cancelled 2018-11-24
Successor callsigns
Callsigns held now by people who previously held W7XP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W7XP, oldest first.
- WATERHOUSE JR, CARL L AZ2006-08-08 → cancelled 2018-11-06
- WING, THOMAS D WY2018-11-24 active