Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W5IDA callsign genealogy
Currently held by KING, JOHN 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 W5IDA's current licensee, walking backwards.
- KING, JOHN PMDgranted 2000-07-11cancelled 2009-12-19
Successor callsigns
Callsigns held now by people who previously held W5IDA.
No current licensee on record previously held this callsign.