Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB3ISI callsign genealogy
Currently held by Iseminger, David W
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 KB3ISI's current licensee, walking backwards.
- Iseminger, David WMDgranted 2022-05-13cancelled 2022-06-18
Successor callsigns
Callsigns held now by people who previously held KB3ISI.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB3ISI, oldest first.
- Iseminger, David W MD2012-09-19 → cancelled 2021-11-06
- Iseminger, David W MD2022-06-18 active