Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1TLK callsign genealogy
Currently held by Mahoney, John 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 W1TLK's current licensee, walking backwards.
- Mahoney, John JNHgranted 2015-05-01cancelled 2015-05-30
Successor callsigns
Callsigns held now by people who previously held W1TLK.
No current licensee on record previously held this callsign.