Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W5INP callsign genealogy
Currently held by PORTER, DONALD K
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 W5INP's current licensee, walking backwards.
- Nunez, Ildeberto PTXgranted 2006-03-06cancelled 2008-02-15
Successor callsigns
Callsigns held now by people who previously held W5INP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W5INP, oldest first.
- PORTER, DONALD K AZ1991-11-19 → cancelled 2003-11-20
- NUNEZ, ILDEBERTO P TX2017-11-21 active