Confidence: Medium · Source: FCC ULS · As of 2026-09-09
W1ESR callsign genealogy
Currently held by Swezey Sr, Lawrence W
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 W1ESR's current licensee, walking backwards.
- Swezey Sr, Lawrence WMAgranted 2009-12-15cancelled 2012-11-02
Successor callsigns
Callsigns held now by people who previously held W1ESR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W1ESR, oldest first.
- BELL, ROBERT R CT1989-01-24 → cancelled 2001-01-25
- Swezey Sr, Lawrence W MA2012-11-02 → cancelled 2024-12-04