Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB5Y callsign genealogy
Currently held by MILLIGAN, MICHAEL B
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 AB5Y's current licensee, walking backwards.
- AC4JYcancelledcancelled 1999-07-27
Successor callsigns
Callsigns held now by people who previously held AB5Y.
- JACOBS JR, JOHNOKgranted 1997-02-12cancelled 2006-09-24