Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4EIB callsign genealogy
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 W4EIB's current licensee, walking backwards.
- SHAWVER, CARL DFLgranted 2008-03-11cancelled 2008-05-16
Successor callsigns
Callsigns held now by people who previously held W4EIB.
- TUTEN, MATTHEW AFLgranted 2009-03-07cancelled 2021-03-26
All historical holders
Every license row we've seen with the callsign W4EIB, oldest first.
- SHAWVER, CARL D FL2018-03-14 active
- —— → cancelled 1999-03-25