Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W1CAH callsign genealogy
Currently held by Whittaker, Robert J
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 W1CAH's current licensee, walking backwards.
- Whittaker, Robert JCTgranted 2016-03-17cancelled 2016-04-09
Successor callsigns
Callsigns held now by people who previously held W1CAH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W1CAH, oldest first.
- Eckert, Melvin D CT2001-05-09 → cancelled 2013-08-07
- Whittaker, Robert J CT2026-03-10 active