Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KP4ERR callsign genealogy
Currently held by CHAMBERS, JAY R
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 KP4ERR's current licensee, walking backwards.
- RODRIGUEZ ROSARIO, EDWINPRgranted 2019-10-28cancelled 2019-12-31
Successor callsigns
Callsigns held now by people who previously held KP4ERR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KP4ERR, oldest first.
- CHAMBERS, JAY R CA1997-08-07 → cancelled 2009-08-08
- RODRIGUEZ ROSARIO, EDWIN PR2019-12-31 active