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Confidence: Medium · Source: FCC ULS · As of 2026-09-14

W5BLT callsign genealogy

Currently held by PRATER, ROBERT W

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 W5BLT's current licensee, walking backwards.

  1. AI5DYcancelled· E
    HERZLER, WILLIAM RTXgranted 2018-09-18cancelled 2021-09-17
  2. KA9UDNcancelled· E
    HERZLER, WILLIAM RTXgranted 2018-09-18cancelled 2021-06-08

Successor callsigns

Callsigns held now by people who previously held W5BLT.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign W5BLT, oldest first.

  • PRATER, ROBERT W CA
    2006-03-28 → cancelled 2018-06-19
  • HERZLER, WILLIAM R TX
    2021-09-17 active
← Back to W5BLT License history →