Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB7TIS callsign genealogy
Currently held by LIPCHITZ, JOSEPH S
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 KB7TIS's current licensee, walking backwards.
- SWEETNAM, TARYN IAZgranted 2021-04-29cancelled 2021-05-21
Successor callsigns
Callsigns held now by people who previously held KB7TIS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB7TIS, oldest first.
- LIPCHITZ, JOSEPH S OR1993-03-23 → cancelled 2005-03-24
- SWEETNAM, TARYN I AZ2021-05-21 active