Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W2EFR callsign genealogy
Currently held by Zerby, Michael 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 W2EFR's current licensee, walking backwards.
- Zerby, Michael JNJgranted 2023-04-21cancelled 2023-07-14
Successor callsigns
Callsigns held now by people who previously held W2EFR.
No current licensee on record previously held this callsign.