Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4ZC callsign genealogy
Currently held by KELLEHER, 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 W4ZC's current licensee, walking backwards.
- Kelleher, Gerald CVAgranted 2002-06-19cancelled 2002-09-17
Successor callsigns
Callsigns held now by people who previously held W4ZC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4ZC, oldest first.
- KELLEHER, JOHN J MD2000-12-28 → cancelled 2002-02-28
- Kelleher, Gerald C VA2023-09-21 active