Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4NLX callsign genealogy
Currently held by INDIAN RIVER AMATEUR RADIO CLUB
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 W4NLX's current licensee, walking backwards.
- KJ4GEQcancelledIndian River Amateur Radio ClubFLgranted 2008-08-21cancelled 2008-09-09
Successor callsigns
Callsigns held now by people who previously held W4NLX.
- W2SDBactiveINDIAN RIVER AMATEUR RADIO CLUBFLgranted 2018-07-12
All historical holders
Every license row we've seen with the callsign W4NLX, oldest first.
- INDIAN RIVER AMATEUR RADIO CLUB FL2005-01-14 → cancelled 2008-08-08
- INDIAN RIVER AMATEUR RADIO CLUB FL2018-07-12 active