Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB3WLD callsign genealogy
Currently held by MITTAN, THOMAS 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 KB3WLD's current licensee, walking backwards.
- Harris, ZacharyMDgranted 2026-02-24cancelled 2026-03-14
Successor callsigns
Callsigns held now by people who previously held KB3WLD.
- Harris, ZacharyMDgranted 2026-05-05
All historical holders
Every license row we've seen with the callsign KB3WLD, oldest first.
- MITTAN, THOMAS J PA2011-09-09 → cancelled 2023-09-12
- Harris, Zachary MD2026-03-14 → cancelled 2026-05-05