Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K5CBP callsign genealogy
Currently held by MATHIS, JOHN N
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 K5CBP's current licensee, walking backwards.
- ERAZO, MAURICIOTXgranted 2025-03-07cancelled 2026-03-31
Successor callsigns
Callsigns held now by people who previously held K5CBP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K5CBP, oldest first.
- MATHIS, JOHN N OK1996-06-18 → cancelled 2008-06-19
- ERAZO, MAURICIO TX2026-03-31 active