Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB6PYP callsign genealogy
Currently held by Sullivan, Irvin M
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 KB6PYP's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KB6PYP.
- Sullivan, Irvin MCAgranted 2013-08-29cancelled 2026-07-22