Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4HUB callsign genealogy
Currently held by MUNSTER, RALF F
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 N4HUB's current licensee, walking backwards.
- Harvey, Hubbard HALgranted 2006-06-26cancelled 2007-12-07
Successor callsigns
Callsigns held now by people who previously held N4HUB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4HUB, oldest first.
- MUNSTER, RALF F GA1987-08-25 → cancelled 1999-09-01
- Harvey, Hubbard H AL2017-10-11 active