Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB7H callsign genealogy
Currently held by Heil, Phillip 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 AB7H's current licensee, walking backwards.
- Heil, Phillip JWAgranted 2022-05-27cancelled 2026-08-18
Successor callsigns
Callsigns held now by people who previously held AB7H.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AB7H, oldest first.
- BABCOCK, DAVID P FL2014-07-29 → cancelled 2026-08-01
- Heil, Phillip J WA2026-08-18 active