Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W3LMB callsign genealogy
Currently held by Slater, Michael 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 W3LMB's current licensee, walking backwards.
- Slater, Michael DPAgranted 2005-03-31cancelled 2005-05-13
Successor callsigns
Callsigns held now by people who previously held W3LMB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W3LMB, oldest first.
- SLATER, WILBUR W PA1995-03-16 → cancelled 2001-06-19
- Slater, Michael D PA2026-03-20 active