Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KE4CRM callsign genealogy
Currently held by CALLANAN, MICHAEL E
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 KE4CRM's current licensee, walking backwards.
- CALLANAN, MICHAEL EFLgranted 2023-02-28
Successor callsigns
Callsigns held now by people who previously held KE4CRM.
All historical holders
Every license row we've seen with the callsign KE4CRM, oldest first.
- CALLANAN, MICHAEL E FL2012-07-10 → cancelled 2012-11-14
- —— → cancelled 1998-08-25