Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4SRD callsign genealogy
Currently held by Mutlu, Serdar
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 W4SRD's current licensee, walking backwards.
- Mutlu, SerdarFLgranted 2021-08-27cancelled 2021-10-08
Successor callsigns
Callsigns held now by people who previously held W4SRD.
No current licensee on record previously held this callsign.