Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1SLH callsign genealogy
Currently held by FIELD, CARL S
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 W1SLH's current licensee, walking backwards.
- Cloutier, Michael FMAgranted 2007-05-21cancelled 2011-06-14
Successor callsigns
Callsigns held now by people who previously held W1SLH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W1SLH, oldest first.
- FIELD, CARL S MA1995-11-28 → cancelled 2007-11-29
- Cloutier, Michael NH2021-06-10 active