Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W1ABK callsign genealogy
Currently held by WELCH, JOHN F
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 W1ABK's current licensee, walking backwards.
- WELCH, JOHN FMEgranted 2013-01-25cancelled 2017-05-16
Successor callsigns
Callsigns held now by people who previously held W1ABK.
No current licensee on record previously held this callsign.