Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KE4RWI callsign genealogy
Currently held by LIPTON, MATTHEW B
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 KE4RWI's current licensee, walking backwards.
- LIPTON, MATTHEW BNYgranted 2004-09-28cancelled 2012-06-05
Successor callsigns
Callsigns held now by people who previously held KE4RWI.
- LIPTON, MATTHEW BNYgranted 2004-09-28cancelled 2012-06-05
All historical holders
Every license row we've seen with the callsign KE4RWI, oldest first.
- LIPTON, MATTHEW B NY1994-10-18 → cancelled 2004-02-13
- LIPTON, MATTHEW B NJ2023-11-16 active