Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W6PHU callsign genealogy
Currently held by Day, Tom T
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 W6PHU's current licensee, walking backwards.
- Day, Tom TCOgranted 2014-04-17cancelled 2016-12-03
- KE6IMAno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held W6PHU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W6PHU, oldest first.
- ALTMAN, ROBERT N CA1987-12-15 → cancelled 1999-12-16
- Day, Tom T AZ2016-12-03 active