Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N5UIP callsign genealogy
Currently held by GRIFFIN, THOMAS L
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 N5UIP's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held N5UIP.
- GRIFFIN, THOMAS LARgranted 2021-06-11cancelled 2021-07-12
All historical holders
Every license row we've seen with the callsign N5UIP, oldest first.
- GRIFFIN, THOMAS L AR2021-05-25 → cancelled 2021-06-11
- GRIFFIN, THOMAS L AR2021-09-04 active