Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7SPT callsign genealogy
Currently held by Tan, Susan P
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 W7SPT's current licensee, walking backwards.
- Tan, Susan PWAgranted 2019-11-19cancelled 2019-12-20
Successor callsigns
Callsigns held now by people who previously held W7SPT.
No current licensee on record previously held this callsign.