Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AB1CO callsign genealogy
Currently held by Andrew Birch, Tamara S
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 AB1CO's current licensee, walking backwards.
- Andrew Birch, Tamara SNHgranted 2002-04-08cancelled 2003-05-09
Successor callsigns
Callsigns held now by people who previously held AB1CO.
No current licensee on record previously held this callsign.