Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W1VFR callsign genealogy
Currently held by Hanrahan, William J
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 W1VFR's current licensee, walking backwards.
- King, Gregory VMAgranted 2025-06-10cancelled 2025-06-28
Successor callsigns
Callsigns held now by people who previously held W1VFR.
- Hanrahan, William JMAgranted 2022-02-08
All historical holders
Every license row we've seen with the callsign W1VFR, oldest first.
- Hanrahan, William J FL2002-03-21 → cancelled 2002-05-07
- King, Gregory V MA2025-06-28 active