Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6TMZ callsign genealogy
Currently held by Porter, Laurence 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 K6TMZ's current licensee, walking backwards.
- Porter, Laurence ACAgranted 2012-02-23cancelled 2016-04-08
Successor callsigns
Callsigns held now by people who previously held K6TMZ.
- Porter, Laurence ACAgranted 2020-06-13