Confidence: Medium · Source: FCC ULS · As of 2026-10-24
N7BLU callsign genealogy
Currently held by Sullivan, Stephen 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 N7BLU's current licensee, walking backwards.
- Sullivan, Stephen MORgranted 2026-01-14cancelled 2026-10-16
Successor callsigns
Callsigns held now by people who previously held N7BLU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N7BLU, oldest first.
- MUNRO, JOHN D WA2014-09-05 → cancelled 2026-09-09
- Sullivan, Stephen M OR2026-10-16 active