Confidence: Medium · Source: FCC ULS · As of 2026-09-09

AF4PZ

Cancelled

WALKER, MARK C

Location: Frederick, MD
Class: Amateur Extra
Granted: 2019-07-19
Expires: 2029-10-02
Previous call: WL7O
FRN: 0003285038

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Vanity availability

Available

Available now

AF4PZ cleared its 2-year hold on 2021-08-12. Eligible for vanity application.

Last held by WALKER, MARK C (MD).

Confidence: High

Cancelled licenses begin the 2-year hold immediately, so this date is the firm release date per §97.19. Already past — fileable subject to FCC verification.

Callsign genealogy

Full chain →

Previously held by current licensee

WL7Oactive· E
DAVIS, MARK AAKgranted 2017-06-06
KM4OEcancelled· E
DAVIS, MARK AAKgranted 2011-09-08cancelled 2017-06-06

Prior holders later became

AC3EWactive· E
WALKER, MARK CMDgranted 2019-07-19

License history

0 events

No recorded events.

More vanity slots coming available

From Maryland

All →

N3JTJ 2026-09-12
KB3ZFH 2026-09-13
KC3MJH 2026-09-13
KC3ZPN 2026-09-13
KB3HRU 2026-09-18

Starting with AF4

All →

AF4CE GA · 2026-11-16
AF4XM FL · 2026-11-23
AF4AF KY · 2026-12-07
AF4RT TN · 2026-12-21
AF4VT FL · 2026-12-21

Full history → Vanity availability → Callsign genealogy →