Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N5ACK callsign genealogy
Currently held by BLAYLOCK, LESLIE E
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 N5ACK's current licensee, walking backwards.
- MC GRATH, DENNIS MTXgranted 2007-06-12cancelled 2007-08-07
Successor callsigns
Callsigns held now by people who previously held N5ACK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N5ACK, oldest first.
- BLAYLOCK, LESLIE E TX1988-02-23 → cancelled 2000-02-24
- MC GRATH, DENNIS M TX2017-05-12 active