Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N5SYD callsign genealogy
Currently held by Polk, Sydney
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 N5SYD's current licensee, walking backwards.
- Polk, Sydney TNMgranted 2024-07-09cancelled 2024-07-30
Successor callsigns
Callsigns held now by people who previously held N5SYD.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N5SYD, oldest first.
- HEBERT, ALICE M LA2001-12-12 → cancelled 2013-12-13
- Polk, Sydney NM2024-07-30 active