Confidence: Medium · Source: FCC ULS · As of 2026-09-10

AD4PK

Cancelled

GRIFFIN, MARK K

Location: Isle of Palms, SC
Class: Amateur Extra
Granted: 2014-01-14
Expires: 2024-02-01
Previous call: KR4BL
FRN: 0009650367

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Vanity availability

Available

Available now

AD4PK cleared its 2-year hold on 2022-11-17. Eligible for vanity application.

Last held by GRIFFIN, MARK K (SC).

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

KR4BL
no FCC ULS record on file

Prior holders later became

W4MKGactive· E
GRIFFIN, MARK KSCgranted 2020-11-17

License history

0 events

No recorded events.

More vanity slots coming available

From South Carolina

All →

KQ4URH 2026-09-10
KG4VBH 2026-09-12
KK4LOZ 2026-09-13
KK4LPA 2026-09-13
KK4LPE 2026-09-13

Starting with AD4

All →

AD4ED GA · 2026-12-03
AD4XA SC · 2027-02-01
AD4WN NC · 2027-03-01
AD4EE FL · 2027-03-11
AD4BT NC · 2027-03-15

Full history → Vanity availability → Callsign genealogy →