Confidence: Medium · Source: FCC ULS · As of 2026-09-14
NR1K callsign genealogy
Currently held by Hou, Songyao
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 NR1K's current licensee, walking backwards.
- Hou, SongyaoCAgranted 2022-04-19cancelled 2022-07-06
Successor callsigns
Callsigns held now by people who previously held NR1K.
- HALLIHAN, PATRICK TNCgranted 2020-05-12cancelled 2021-05-08
All historical holders
Every license row we've seen with the callsign NR1K, oldest first.
- BORGERSEN, ROGER N CT2007-11-30 → cancelled 2020-01-24
- HALLIHAN, PATRICK T NC2020-02-19 → cancelled 2020-05-12
- Hou, Songyao CA2022-07-06 active