Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4LCR callsign genealogy
Currently held by KNOCHE, JAMES 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 W4LCR's current licensee, walking backwards.
- Roberts, Laurence CFLgranted 2018-02-09cancelled 2018-12-18
Successor callsigns
Callsigns held now by people who previously held W4LCR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4LCR, oldest first.
- KNOCHE, JAMES W FL2007-01-17 → cancelled 2018-11-06
- Roberts, Laurence C FL2018-12-18 active