Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4MHC callsign genealogy
Currently held by Haddock-Colon, Marcos A
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 KP4MHC's current licensee, walking backwards.
- Haddock-Colon, Marcos APRgranted 2011-07-15cancelled 2014-08-19
Successor callsigns
Callsigns held now by people who previously held KP4MHC.
No current licensee on record previously held this callsign.