Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB7ISS callsign genealogy
Currently held by Mason, Leslie A
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 KB7ISS's current licensee, walking backwards.
- Mason, Leslie AAZgranted 2003-10-17cancelled 2004-11-26
Successor callsigns
Callsigns held now by people who previously held KB7ISS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB7ISS, oldest first.
- MULLINS, ARTHUR J AZ1989-12-12 → cancelled 2002-03-07
- Mason, Leslie A AZ2014-09-11 active