Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7AAK callsign genealogy
Currently held by Acosta, Guadalupe G
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 W7AAK's current licensee, walking backwards.
- KRYSZEK, ALBERT AORgranted 2017-03-09cancelled 2017-03-28
Successor callsigns
Callsigns held now by people who previously held W7AAK.
- Acosta, Guadalupe GTXgranted 2009-01-06cancelled 2010-02-19
All historical holders
Every license row we've seen with the callsign W7AAK, oldest first.
- GULLSTAD, HAROLD E WA1987-08-18 → cancelled 1999-08-20
- Acosta, Guadalupe G TX2009-01-06 → cancelled 2010-01-29
- KRYSZEK, ALBERT A OR2017-03-28 active