Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N3XL callsign genealogy
Currently held by CALL, MARK E
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 N3XL's current licensee, walking backwards.
- Smith, William HMDgranted 1999-02-20cancelled 2001-10-07
Successor callsigns
Callsigns held now by people who previously held N3XL.
- CALL, MARK EPAgranted 2019-01-30
All historical holders
Every license row we've seen with the callsign N3XL, oldest first.
- Smith, William H MD2021-08-02 active
- CALL, MARK E— → cancelled 1999-03-11