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

N7DMA

Active

RIFENBARK, KARL E

Location: Tucson, AZ
Class: Amateur Extra
Granted: 2020-09-21
Expires: 2030-11-28
Previous call: KD7DXZ
FRN: 0004232112

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Vanity availability

Held

Currently held

N7DMA is held by an active license; it isn't a vanity slot right now.

Vanity availability dates are computed from FCC §97.19's hold periods: 2 years from the cancellation date for cancelled or terminated licenses, 4 years from the expiration date for expired licenses (2-year renewal grace + 2-year hold).

Callsign genealogy

Full chain →

Previously held by current licensee

KD7DXZcancelled· G
RIFENBARK, KARL EAZgranted 1999-02-03cancelled 2000-11-28
KB8VKBcancelled
cancelled 1999-02-03

License history

0 events

No recorded events.

More vanity slots coming available

From Arizona

All →

K7JVC 2026-09-09
N0PSA 2026-09-09
AD7UU 2026-09-10
W7CWD 2026-09-10
KF7YNV 2026-09-13

Starting with N7

All →

N7HRR MT · 2026-09-10
N7QEV UT · 2026-09-11
N7TYT WA · 2026-09-12
N7WDR WA · 2026-09-16
N7JWM AZ · 2026-09-21

Full history → Vanity availability → Callsign genealogy →