Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD5PH callsign genealogy
Currently held by HOWARD, WILLIAM D
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 AD5PH's current licensee, walking backwards.
- HOWARD, WILLIAM DTXgranted 2003-10-08cancelled 2003-10-22
Successor callsigns
Callsigns held now by people who previously held AD5PH.
- HOWARD, WILLIAM DTXgranted 2023-09-19