Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD5YP callsign genealogy
Currently held by WELCH, JOHN S
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 AD5YP's current licensee, walking backwards.
- WELCH, JOHN SLAgranted 2003-04-14cancelled 2006-10-06
Successor callsigns
Callsigns held now by people who previously held AD5YP.
No current licensee on record previously held this callsign.