K7AQ (since 1987)
Retrieving license, trustee, & application history for

KX4SP

KX4SP is restricted to Advanced class operators or higher.
KX4SP is c - canceled and is available.
Navigation:
Notes:
  • Column headings link to an explanation of the column.
  • A bold Applicant Type marks a vanity callsign assignment.
  • Active licenses are listed first, then the rest by Effective Date, newest first.
Entity
Name
Applicant
Type
Licensee
Class
Region
/ State
License
Status
Grant
Date
Effective
Date
Cancel
Date
Expire
Date
Alderson Jr, Edward W I - Individual E - Amateur Extra4 / VA C - Canceled 2019-06-18 2019-06-18 2019-10-11 2029-06-18

Retrieving applications for

KX4SP

KX4SP is restricted to Advanced class operators or higher.
KX4SP is c - canceled and is available.
Navigation:
  • An Applicant callsign opens that callsign’s history; an Entity Name opens the applicant’s history.
  • A ULS File Number opens the application detail; a Receipt Date opens that day’s applications.
Notes:
  • Two dates or purposes in one row mean the application was amended or withdrawn: the latest change is on top, the original underneath.
  • “Granted” means the application was granted, not necessarily with this callsign.
  • Receipt dates more than a month old have a gray background.
Receipt
Date
Applicant
Callsign
Region
/ State
Entity
Name
ULS File
Number
Application
Purpose
Payment
Date
Last Action
Date
Application
Status
Fri 2026-07-31 NA4EH 4 / SC Springer, Philipp 0012135190
I - Online
MD - Modification 2026-07-31 2026-08-18 G - Granted