Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9EIR callsign genealogy
Currently held by AHLBERG, 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 K9EIR's current licensee, walking backwards.
- AHLBERG, ROBERT DMNgranted 1989-07-18cancelled 2000-02-18
Successor callsigns
Callsigns held now by people who previously held K9EIR.
- AHLBERG, ROBERT DMNgranted 2019-12-28