Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N0LCB callsign genealogy
Currently held by BAUMBACH, RANDALL L
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 N0LCB's current licensee, walking backwards.
- BAUMBACH, RANDALL LSDgranted 2015-12-23cancelled 2021-04-13
Successor callsigns
Callsigns held now by people who previously held N0LCB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0LCB, oldest first.
- SHERIDAN, DOUGLAS P MO2000-05-05 → cancelled 2012-07-18
- BAUMBACH, RANDALL L SD2021-04-13 active