uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-12

AB9ZP callsign genealogy

Currently held by Piva, William J

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 AB9ZP's current licensee, walking backwards.

  1. AB9ZOcancelled· E
    Piva, William JILgranted 2008-01-05cancelled 2011-07-23
  2. AB9ZNcancelled· E
    Piva, William JILgranted 2008-01-05cancelled 2011-07-20
  3. AB9ZMcancelled· E
    Piva, William JILgranted 2008-01-05cancelled 2011-07-19
  4. AB9ZLcancelled· E
    Piva, William JILgranted 2008-01-05cancelled 2011-07-12
  5. AB9ZKcancelled· E
    Piva, William JILgranted 2008-01-05cancelled 2011-07-07
  6. AB9ZJcancelled· E
    Piva, William JILgranted 2008-01-05cancelled 2011-07-06
  7. AB9ZHcancelled· E
    Piva, William JILgranted 2008-01-05cancelled 2011-06-28
  8. AB9XOcancelled· E
    Piva, William JILgranted 2008-01-05cancelled 2011-06-21
  9. AB9XKcancelled· E
    Piva, William JILgranted 2008-01-05cancelled 2010-09-24
  10. AB9XHcancelled· E
    Piva, William JILgranted 2008-01-05cancelled 2010-09-10

Successor callsigns

Callsigns held now by people who previously held AB9ZP.

  1. AB9ZQcancelled· E
    Piva, William JILgranted 2008-01-05cancelled 2011-08-05
← Back to AB9ZP License history →