Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1IRS callsign genealogy
Currently held by INTERSTATE REPEATER SOCIETY
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 K1IRS's current licensee, walking backwards.
- KB1QOAcancelledInterstate Repeater SocietyNHgranted 2008-05-21cancelled 2008-06-17
Successor callsigns
Callsigns held now by people who previously held K1IRS.
No current licensee on record previously held this callsign.