Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9ARM callsign genealogy
Currently held by Griswold, Eric B
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 W9ARM's current licensee, walking backwards.
- Griswold, Eric BWIgranted 2015-06-01cancelled 2015-06-19
Successor callsigns
Callsigns held now by people who previously held W9ARM.
No current licensee on record previously held this callsign.