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

K3ISS callsign genealogy

Currently held by Ancell, Mark D

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 K3ISS's current licensee, walking backwards.

  1. KD3AMIcancelled· G
    Lombardo, Sabastian JPAgranted 2025-01-18cancelled 2025-03-18

Successor callsigns

Callsigns held now by people who previously held K3ISS.

  1. K3AAJcancelled· E
    Lombardo, Sabastian JPAgranted 2025-06-27cancelled 2025-09-03
  2. N3EIEactive· G
    Ancell, Mark DMDgranted 2021-12-07

All historical holders

Every license row we've seen with the callsign K3ISS, oldest first.

  • GRAU, ROBERT G PA
    2007-10-13 → cancelled 2019-10-17
  • Ancell, Mark D MD
    2020-05-01 → cancelled 2021-12-07
  • Lombardo, Sabastian J PA
    2025-03-18 → cancelled 2025-06-27
← Back to K3ISS License history →