Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K5MBK callsign genealogy
Currently held by Archibald III, Coster W
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 K5MBK's current licensee, walking backwards.
- Archibald III, Coster WTXgranted 2014-06-12cancelled 2014-07-01
Successor callsigns
Callsigns held now by people who previously held K5MBK.
No current licensee on record previously held this callsign.