Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7AIS callsign genealogy
Currently held by Johnson, Mark M
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 W7AIS's current licensee, walking backwards.
- Johnson, Mark MWAgranted 2013-03-01cancelled 2013-04-13
Successor callsigns
Callsigns held now by people who previously held W7AIS.
No current licensee on record previously held this callsign.