Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB9UP callsign genealogy
Currently held by EHRLICHER, ANDREW R
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 AB9UP's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held AB9UP.
- EHRLICHER, ANDREW RILgranted 2010-01-22cancelled 2010-10-05