Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1ASI callsign genealogy
Currently held by MULLEN, JOSEPH 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 W1ASI's current licensee, walking backwards.
- Algeo, Daniel TWAgranted 2010-11-03cancelled 2011-06-24
Successor callsigns
Callsigns held now by people who previously held W1ASI.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W1ASI, oldest first.
- MULLEN, JOSEPH A MA1988-07-26 → cancelled 2000-07-27
- Algeo, Daniel T WA2021-04-30 active