Confidence: Medium · Source: FCC ULS · As of 2026-09-09
W7FRL callsign genealogy
Currently held by BILLSTROM, DAVID 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 W7FRL's current licensee, walking backwards.
- BILLSTROM, DAVID JNCgranted 2011-11-15cancelled 2013-09-07
Successor callsigns
Callsigns held now by people who previously held W7FRL.
- BILLSTROM, DAVID JVAgranted 2024-09-28