Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KK4JTD callsign genealogy
Currently held by HERRINGTON, TONY
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 KK4JTD's current licensee, walking backwards.
- HERRINGTON, TONYGAgranted 2011-11-16cancelled 2012-06-07
Successor callsigns
Callsigns held now by people who previously held KK4JTD.
- HERRINGTON, TONYGAgranted 2021-12-28