Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1DOO callsign genealogy
Currently held by DOOLITTLE, JAMES C
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 W1DOO's current licensee, walking backwards.
- DOOLITTLE, JAMES CAZgranted 2005-11-01cancelled 2013-10-17
Successor callsigns
Callsigns held now by people who previously held W1DOO.
- DOOLITTLE, JAMES CAZgranted 2017-10-11