Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4IPM callsign genealogy
Currently held by Mills, Isaac P
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 W4IPM's current licensee, walking backwards.
- Mills, Isaac PGAgranted 2004-04-08cancelled 2004-05-18
Successor callsigns
Callsigns held now by people who previously held W4IPM.
No current licensee on record previously held this callsign.