Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KU1M callsign genealogy
Currently held by KRISHNA, SAMPATH
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 KU1M's current licensee, walking backwards.
- KRISHNA, SAMPATHMAgranted 2013-07-24cancelled 2019-09-13
- KB8PQIno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held KU1M.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KU1M, oldest first.
- POLOWY, JOHN J CT2013-03-14 → cancelled 2017-08-23
- KRISHNA, SAMPATH MA2019-09-13 active