Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1CIA callsign genealogy
Currently held by WESTERMEIER, MARK 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 W1CIA's current licensee, walking backwards.
- Haaker, Donald RMAgranted 1998-04-09cancelled 2005-07-26
Successor callsigns
Callsigns held now by people who previously held W1CIA.
- WESTERMEIER, MARK RINgranted 2002-04-12cancelled 2009-06-20
All historical holders
Every license row we've seen with the callsign W1CIA, oldest first.
- WESTERMEIER, MARK R IN2000-06-27 → cancelled 2002-04-12
- Haaker, Donald R MA2015-05-19 active