Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7RMM callsign genealogy
Currently held by SVINTH, DONALD A
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 W7RMM's current licensee, walking backwards.
- SWEARINGEN, RICHARD LAZgranted 2015-05-06cancelled 2016-10-14
Successor callsigns
Callsigns held now by people who previously held W7RMM.
- SVINTH, DONALD AORgranted 2012-08-22cancelled 2024-08-23
All historical holders
Every license row we've seen with the callsign W7RMM, oldest first.
- SVINTH, DONALD A OR1995-09-19 → cancelled 2002-04-03
- SWEARINGEN, RICHARD L AZ2016-10-14 active