Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4OIP callsign genealogy
Currently held by TILLOTSON, CLYDE L
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 W4OIP's current licensee, walking backwards.
- GUILLEN SOULARY, OSCARFLgranted 2016-06-13cancelled 2016-11-26
Successor callsigns
Callsigns held now by people who previously held W4OIP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4OIP, oldest first.
- TILLOTSON, CLYDE L VA1997-11-13 → cancelled 2000-10-06
- GUILLEN SOULARY, OSCAR FL2016-11-26 active