Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4JPH callsign genealogy
Currently held by HORTON, JEAROLD P
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 W4JPH's current licensee, walking backwards.
- HOLLADAY, JACK PFLgranted 2016-02-01cancelled 2017-12-22
Successor callsigns
Callsigns held now by people who previously held W4JPH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4JPH, oldest first.
- HORTON, JEAROLD P AL1998-05-01 → cancelled 2010-01-08
- HOLLADAY, JACK P FL2017-12-22 active