uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-14

W3SRS callsign genealogy

Currently held by Punyajarastavee, Prompiriya

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 W3SRS's current licensee, walking backwards.

  1. AA1AUcancelled· E
    Punyajarastavee, PrompiriyaCAgranted 2017-04-11cancelled 2017-08-08
  2. KM6HOGcancelled· E
    Punyajarastavee, PrompiriyaCAgranted 2017-01-20cancelled 2017-04-11

Successor callsigns

Callsigns held now by people who previously held W3SRS.

  1. AK3Jactive· E
    SAYLOR, STEWART RPAgranted 2025-03-25

All historical holders

Every license row we've seen with the callsign W3SRS, oldest first.

  • SAYLOR, STEWART R PA
    2002-10-08 → cancelled 2005-05-03
  • Punyajarastavee, Prompiriya CA
    2017-08-08 active
← Back to W3SRS License history →