Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AK4H callsign genealogy
Currently held by LAMBERT, WILLIAM D
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 AK4H's current licensee, walking backwards.
- LAMBERT, ALAN SNCgranted 2017-02-17cancelled 2018-07-17
Successor callsigns
Callsigns held now by people who previously held AK4H.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AK4H, oldest first.
- LAMBERT, WILLIAM D NC2013-04-08 → cancelled 2016-07-05
- LAMBERT, ALAN S NC2018-07-17 active