Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K5BID callsign genealogy
Currently held by Biddle, Mark A
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 K5BID's current licensee, walking backwards.
- Biddle, MarkTXgranted 2025-08-14cancelled 2025-09-03
Successor callsigns
Callsigns held now by people who previously held K5BID.
No current licensee on record previously held this callsign.