Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0AMB callsign genealogy
Currently held by Siglow, Richard 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 W0AMB's current licensee, walking backwards.
- Siglow, Richard AMNgranted 2012-05-17cancelled 2012-06-05
Successor callsigns
Callsigns held now by people who previously held W0AMB.
No current licensee on record previously held this callsign.