Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD2BD callsign genealogy
Currently held by Colabine, Thomas 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 AD2BD's current licensee, walking backwards.
- Colabine, Thomas MNYgranted 2012-11-06cancelled 2020-09-26
Successor callsigns
Callsigns held now by people who previously held AD2BD.
- Colabine, Thomas MNYgranted 2020-10-16cancelled 2021-01-19