Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W8TP callsign genealogy
Currently held by PHELPS, THEODORE K
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 W8TP's current licensee, walking backwards.
- Nelson, Matthew JTXgranted 2019-04-11cancelled 2020-07-07
Successor callsigns
Callsigns held now by people who previously held W8TP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W8TP, oldest first.
- PHELPS, THEODORE K MD2015-12-19 → cancelled 2018-06-14
- Nelson, Matthew J TX2020-07-07 active