Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W3ER callsign genealogy
Currently held by Ng, Frank K
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 W3ER's current licensee, walking backwards.
- Ng, Frank KNYgranted 2017-01-19cancelled 2017-02-10
Successor callsigns
Callsigns held now by people who previously held W3ER.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W3ER, oldest first.
- Sullivan, John C MD2004-10-22 → cancelled 2017-01-21
- Ng, Frank K NY2017-02-10 active