Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD0LT callsign genealogy
Currently held by Schlegel Sr, John H
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 AD0LT's current licensee, walking backwards.
- Schlegel Sr, John HSDgranted 2014-08-14cancelled 2014-12-09
Successor callsigns
Callsigns held now by people who previously held AD0LT.
- Schlegel Sr, John HAZgranted 2015-12-29