Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4CJY callsign genealogy
Currently held by UNDERWOOD, LONNIE E
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 W4CJY's current licensee, walking backwards.
- UNDERWOOD, LONNIE EALgranted 2006-01-10cancelled 2007-02-13
Successor callsigns
Callsigns held now by people who previously held W4CJY.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4CJY, oldest first.
- GEORGE, RALPH T TN1995-06-20 → cancelled 2002-10-07
- UNDERWOOD, LONNIE E AL2017-08-15 active