Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K5IFO callsign genealogy
Currently held by Hamlin, William C
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 K5IFO's current licensee, walking backwards.
- Hamlin, William CTXgranted 2012-04-04cancelled 2016-03-29
Successor callsigns
Callsigns held now by people who previously held K5IFO.
No current licensee on record previously held this callsign.