Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N1SRF callsign genealogy
Currently held by Foster, Steven R
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 N1SRF's current licensee, walking backwards.
- Foster, Steven RMAgranted 2012-03-29cancelled 2016-09-13
Successor callsigns
Callsigns held now by people who previously held N1SRF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N1SRF, oldest first.
- MC CLELLAN SR, DAVID F MA2004-04-26 → cancelled 2016-07-16
- Foster, Steven R MA2026-08-06 active