Confidence: Medium · Source: FCC ULS · As of 2026-09-14
NB8I callsign genealogy
Currently held by Baker, Mark J
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 NB8I's current licensee, walking backwards.
- Baker, Mark JOHgranted 2010-06-25cancelled 2010-10-13
Successor callsigns
Callsigns held now by people who previously held NB8I.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NB8I, oldest first.
- MILLER, RALPH J MI1997-12-24 → cancelled 2009-12-25
- Baker, Mark J OH2020-09-09 active