Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1UBG callsign genealogy
Currently held by KING, ROBERT P
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 W1UBG's current licensee, walking backwards.
- King, Michael LNHgranted 2000-04-13cancelled 2000-06-09
Successor callsigns
Callsigns held now by people who previously held W1UBG.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W1UBG, oldest first.
- KING, ROBERT P NH1994-07-15 → cancelled 1998-04-23
- King, Michael L ND2020-06-13 active