Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KF0KYW callsign genealogy
Currently held by Allen, Nathaniel J
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 KF0KYW's current licensee, walking backwards.
- Allen, Nathaniel JMNgranted 2021-04-27cancelled 2022-12-06
Successor callsigns
Callsigns held now by people who previously held KF0KYW.
- Allen, Nathaniel JMNgranted 2021-04-27cancelled 2026-01-23