Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB3KM callsign genealogy
Currently held by CANCRO, JOHN P
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 AB3KM's current licensee, walking backwards.
- CANCRO, JOHN PPAgranted 2009-11-23cancelled 2010-01-29
Successor callsigns
Callsigns held now by people who previously held AB3KM.
- CANCRO, JOHN PPAgranted 2019-12-17