Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WB7H callsign genealogy
Currently held by WHITCOMB, DONALD A
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 WB7H's current licensee, walking backwards.
- Prahl, Robert EIDgranted 2003-08-12cancelled 2006-06-10
Successor callsigns
Callsigns held now by people who previously held WB7H.
- WHITCOMB, DONALD AMTgranted 2018-03-23
All historical holders
Every license row we've seen with the callsign WB7H, oldest first.
- UNGRICHT, HERBERT J UT2000-06-20 → cancelled 2004-05-17
- PRAHL, ROBERT E ID2016-06-15 active
- WHITCOMB, DONALD A— → cancelled 1998-05-20