Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7ESC callsign genealogy
Currently held by Monahan, Jeffrey 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 W7ESC's current licensee, walking backwards.
- Collins, Eamon SMTgranted 2021-12-13cancelled 2021-12-31
Successor callsigns
Callsigns held now by people who previously held W7ESC.
- Monahan, Jeffrey AIDgranted 2019-08-30
All historical holders
Every license row we've seen with the callsign W7ESC, oldest first.
- Monahan, Jeffrey A OR2016-03-25 → cancelled 2019-08-30
- Collins, Eamon S MT2021-12-31 active