Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7HFX callsign genealogy
Currently held by Whipple, Mark S
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 W7HFX's current licensee, walking backwards.
- Smith, Stanley MWAgranted 2020-11-24cancelled 2024-04-23
Successor callsigns
Callsigns held now by people who previously held W7HFX.
- Whipple, Mark SAZgranted 2018-12-28
All historical holders
Every license row we've seen with the callsign W7HFX, oldest first.
- Whipple, Mark S AZ2017-03-14 → cancelled 2018-12-28
- Smith, Stanley M WA2024-04-23 active