Confidence: Medium · Source: FCC ULS · As of 2026-09-14
NY4H callsign genealogy
Currently held by Krauth, Robert J
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 NY4H's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held NY4H.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NY4H, oldest first.
- SILVER, MARTHA A NC2006-09-21 → cancelled 2018-11-16
- Krauth, Robert J TN2018-12-04 active