Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W3COW callsign genealogy
Currently held by THEODORE JR, THOMAS
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 W3COW's current licensee, walking backwards.
- THEODORE, DAVID JMTgranted 1993-08-24cancelled 2000-10-13
Successor callsigns
Callsigns held now by people who previously held W3COW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W3COW, oldest first.
- THEODORE JR, THOMAS PA1996-11-08 → cancelled 2000-05-06
- THEODORE, DAVID J MT2020-08-04 active