Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W1ABS callsign genealogy
Currently held by Denahy JR, John B
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 W1ABS's current licensee, walking backwards.
- Denahy Jr, John BMAgranted 2001-09-18cancelled 2001-10-16
Successor callsigns
Callsigns held now by people who previously held W1ABS.
No current licensee on record previously held this callsign.