Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB1LZ callsign genealogy
Currently held by CRONIN, JEFFREY N
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 KB1LZ's current licensee, walking backwards.
- CRONIN, JEFFREY NCTgranted 2015-11-21cancelled 2018-05-30
Successor callsigns
Callsigns held now by people who previously held KB1LZ.
- SMITH, WILLIAM CAZgranted 2011-01-19cancelled 2014-12-09
All historical holders
Every license row we've seen with the callsign KB1LZ, oldest first.
- SMITH, WILLIAM C AZ2006-02-15 → cancelled 2011-01-19
- CRONIN, JEFFREY N CT2018-05-30 active