Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WA1KMU callsign genealogy
Currently held by Richardson, Neal 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 WA1KMU's current licensee, walking backwards.
- Richardson, Neal SNHgranted 2017-10-28cancelled 2019-11-23
Successor callsigns
Callsigns held now by people who previously held WA1KMU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WA1KMU, oldest first.
- ELM, ALEX H NH1987-10-20 → cancelled 1999-10-21
- Richardson, Neal S NH2019-11-23 active