Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W2MWK callsign genealogy
Currently held by KOEHLER, MARK W
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 W2MWK's current licensee, walking backwards.
- KOEHLER, MARK WCAgranted 2011-07-28cancelled 2012-01-14
Successor callsigns
Callsigns held now by people who previously held W2MWK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W2MWK, oldest first.
- BRODSKY, JULIUS NY1994-11-16 → cancelled 2006-11-17
- KOEHLER, MARK W CA2021-10-18 active