Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W5ZMM callsign genealogy
Currently held by ISLER, DANIEL 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 W5ZMM's current licensee, walking backwards.
- ISLER, DANIEL WTXgranted 2021-09-27cancelled 2022-08-16
Successor callsigns
Callsigns held now by people who previously held W5ZMM.
No current licensee on record previously held this callsign.