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

K4DGO

Cancelled

O BRIEN, DAVID G

Location: ROCHESTER, NY
Class: Advanced
Granted: 2017-08-08
Expires: 2027-08-08
Previous call: KD2QA
FRN: 0003548922

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Vanity availability

Available

Available now

K4DGO cleared its 2-year hold on 2022-07-03. Eligible for vanity application.

Last held by O BRIEN, DAVID G (NY).

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

KD2QAcancelled· A
O BRIEN, DAVID GNCgranted 2005-09-28cancelled 2006-01-10

Prior holders later became

WA2YFLactive· A
O BRIEN, DAVID GNYgranted 2020-07-03

License history

0 events

No recorded events.

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Full history → Vanity availability → Callsign genealogy →