Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AI5JP callsign genealogy
Currently held by KEISTER, ROBERT 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 AI5JP's current licensee, walking backwards.
- KEISTER, ROBERT DTXgranted 2018-07-24cancelled 2022-12-29
Successor callsigns
Callsigns held now by people who previously held AI5JP.
- KEISTER, ROBERT DTXgranted 2023-01-21