Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WA5B callsign genealogy
Currently held by Cahill, Dennis R
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 WA5B's current licensee, walking backwards.
- Cahill, Dennis RTXgranted 2024-02-03cancelled 2024-07-26
Successor callsigns
Callsigns held now by people who previously held WA5B.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WA5B, oldest first.
- Moser, John T TX2012-05-07 → cancelled 2024-07-09
- Cahill, Dennis R TX2024-07-26 active