Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W5KMB callsign genealogy
Currently held by DOBSON, 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 W5KMB's current licensee, walking backwards.
- Bernard, Karl MTXgranted 2001-02-26cancelled 2001-08-15
Successor callsigns
Callsigns held now by people who previously held W5KMB.
- DOBSON, WILLIAM DTXgranted 1999-05-14cancelled 2004-03-16
All historical holders
Every license row we've seen with the callsign W5KMB, oldest first.
- Bernard, Karl M TX2021-06-03 active
- DOBSON, WILLIAM D— → cancelled 1999-05-14