Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0LLN callsign genealogy
Currently held by Sawyer, Collin M
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 K0LLN's current licensee, walking backwards.
- Sawyer, Collin MIAgranted 2006-08-10cancelled 2006-09-23
Successor callsigns
Callsigns held now by people who previously held K0LLN.
No current licensee on record previously held this callsign.