Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4WTR callsign genealogy
Currently held by Philip, Jonathan W
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 W4WTR's current licensee, walking backwards.
- Philip, Jonathan WKYgranted 2018-02-27cancelled 2020-08-14
Successor callsigns
Callsigns held now by people who previously held W4WTR.
- Philip, Jonathan WKYgranted 2023-04-29
All historical holders
Every license row we've seen with the callsign W4WTR, oldest first.
- MARLIN JR, WILLIAM D VA2007-12-07 → cancelled 2019-12-18
- Philip, Jonathan W KY2020-08-14 → cancelled 2023-04-29