Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4TIR callsign genealogy
Currently held by MULCAHA, JOHN W
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 W4TIR's current licensee, walking backwards.
- MULCAHA, JOHN WNCgranted 2011-07-25cancelled 2011-08-23
Successor callsigns
Callsigns held now by people who previously held W4TIR.
- MULCAHA, JOHN WSCgranted 2022-08-02