Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1BHO callsign genealogy
Currently held by Blue Hill Observatory Wireless Society
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 W1BHO's current licensee, walking backwards.
- KC1RKBcancelledBlue Hill Observatory Wireless SocietyMAgranted 2022-06-10cancelled 2022-06-28
Successor callsigns
Callsigns held now by people who previously held W1BHO.
No current licensee on record previously held this callsign.