Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB7SAR callsign genealogy
Currently held by Dillenberg, Chad J
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 KB7SAR's current licensee, walking backwards.
- Dillenberg, Chad JORgranted 2015-02-13cancelled 2015-11-03
Successor callsigns
Callsigns held now by people who previously held KB7SAR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB7SAR, oldest first.
- MC LAFFERTY, TERENCE J WA2003-01-18 → cancelled 2015-01-10
- Dillenberg, Chad J WA2025-08-13 active