Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1CLK callsign genealogy
Currently held by Mongan Jr, William M
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 W1CLK's current licensee, walking backwards.
- Mongan Jr, William MPAgranted 2017-10-16cancelled 2017-11-04
Successor callsigns
Callsigns held now by people who previously held W1CLK.
No current licensee on record previously held this callsign.