Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W1TTM callsign genealogy
Currently held by WITT, MICHAEL
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 W1TTM's current licensee, walking backwards.
- WITT, MICHAEL TMDgranted 2014-06-09cancelled 2015-09-15
Successor callsigns
Callsigns held now by people who previously held W1TTM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W1TTM, oldest first.
- GRAHAM, EDGAR E NH1989-09-05 → cancelled 2001-09-06
- WITT, MICHAEL MD2025-08-13 active