Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W1HTM callsign genealogy
Currently held by PEFFER, CRAIG 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 W1HTM's current licensee, walking backwards.
- Buzzell, GarrettMEgranted 2025-12-05cancelled 2025-12-30
Successor callsigns
Callsigns held now by people who previously held W1HTM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W1HTM, oldest first.
- PEFFER, CRAIG A CT1996-04-15 → cancelled 2008-04-16
- Buzzell, Garrett ME2025-12-30 active