Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WB5HRF callsign genealogy
Currently held by MOBIL EMERGENCY RADIO CLUB
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 WB5HRF's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held WB5HRF.
- W5XOMactiveEXXON MOBIL EMERGENCY RADIO CLUBTXgranted 2018-03-20