Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W5EFB callsign genealogy
Currently held by JEFFRIES, JAMES B
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 W5EFB's current licensee, walking backwards.
- GREEN, ALTON WTXgranted 2002-05-14cancelled 2008-11-01
- N5SHOno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held W5EFB.
- GREEN, ALTON WTXgranted 2019-07-08
All historical holders
Every license row we've seen with the callsign W5EFB, oldest first.
- JEFFRIES, JAMES B TX1995-11-03 → cancelled 2006-07-15
- GREEN, ALTON W TX2008-11-01 → cancelled 2009-07-21