Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W3EXP callsign genealogy
Currently held by DE BRUYN, PETER R
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 W3EXP's current licensee, walking backwards.
- KB3MPAcancelledMontgomery Amateur Radio ClubMDgranted 2005-08-25cancelled 2006-01-07
Successor callsigns
Callsigns held now by people who previously held W3EXP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W3EXP, oldest first.
- DE BRUYN, PETER R MD1995-12-08 → cancelled 1999-10-08
- Montgomery Amateur Radio Club MD2025-12-13 active