Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K5TAO callsign genealogy
Currently held by Harper, Mark L
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 K5TAO's current licensee, walking backwards.
- Harper, Mark LTXgranted 2002-06-25cancelled 2004-11-16
Successor callsigns
Callsigns held now by people who previously held K5TAO.
No current licensee on record previously held this callsign.