Confidence: Medium · Source: FCC ULS · As of 2026-09-12

N4IRM

Expired

CALDWELL, MICHAEL A

Location: OCALA, FL
Class: Technician Plus
Granted: 1988-07-26
Expires: 1998-07-26
Previous call: KB4AQF

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Vanity availability

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N4IRM cleared its 2-year hold on 2002-07-25. Eligible for vanity application.

Last held by CALDWELL, MICHAEL A (FL).

Confidence: High

Expired licenses get a 2-year FCC renewal grace period followed by the 2-year hold. The date shown accounts for both, so it's the firm release date per §97.19.

Callsign genealogy

Full chain →

Previously held by current licensee

KB4AQF
no FCC ULS record on file

License history

0 events

No recorded events.

More vanity slots coming available

From Florida

All →

AC4VP 2026-09-14
KB2AID 2026-09-14
KD4SXH 2026-09-14
KD4SXQ 2026-09-14
KE4EYE 2026-09-14

Starting with N4

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N4MOC GA · 2026-09-14
N4YTT KY · 2026-09-14
N4PWQ TN · 2026-09-17
N4RIM NC · 2026-09-21
N4XGX SC · 2026-09-21

Full history → Vanity availability → Callsign genealogy →