Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W0HLP callsign genealogy
Currently held by SCHWARTZ, NORBERT L
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 W0HLP's current licensee, walking backwards.
- Hamann, Ricky JMOgranted 2015-11-25cancelled 2015-12-15
Successor callsigns
Callsigns held now by people who previously held W0HLP.
- Hamann, Ricky JMOgranted 2018-07-06
All historical holders
Every license row we've seen with the callsign W0HLP, oldest first.
- SCHWARTZ, NORBERT L IA1996-07-11 → cancelled 2008-07-12
- Hamann, Ricky J MO2015-12-15 → cancelled 2018-07-06