Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1CCM callsign genealogy
Currently held by Berlo Sr, Kenneth 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 W1CCM's current licensee, walking backwards.
- MACH, DENNIS PMAgranted 2015-01-27cancelled 2025-02-19
Successor callsigns
Callsigns held now by people who previously held W1CCM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W1CCM, oldest first.
- Berlo Sr, Kenneth J MA2012-08-17 → cancelled 2024-12-04
- MACH, DENNIS P MA2025-02-19 active