Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W2MJB callsign genealogy
Currently held by Berch, Mark J
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 W2MJB's current licensee, walking backwards.
- BARNES, MARK JSCgranted 2017-02-23cancelled 2018-09-25
Successor callsigns
Callsigns held now by people who previously held W2MJB.
- Berch, Mark JNVgranted 2022-04-21
All historical holders
Every license row we've seen with the callsign W2MJB, oldest first.
- Berch, Mark J CA2012-05-18 → cancelled 2012-07-06
- Barnes, Mark J SC2018-09-25 active