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

AB7ZU

Expired

ARMSTRONG, MICHAEL J

Location: PHOENIX, AZ
Class: Amateur Extra
Granted: 2008-10-21
Expires: 2018-11-25
Previous call: KB3RM
FRN: 0013973763

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Vanity availability

Available

Available now

AB7ZU cleared its 2-year hold on 2022-11-24. Eligible for vanity application.

Last held by ARMSTRONG, MICHAEL J (AZ).

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

KB3RMactive· A
MAZZA, ROBERT JPAgranted 2025-03-15
KA3VYYcancelled· A
MAZZA, ROBERT JPAgranted 2003-03-06cancelled 2005-03-25

License history

0 events

No recorded events.

More vanity slots coming available

From Arizona

All →

AD7UU 2026-09-10
W7CWD 2026-09-10
KF7YNV 2026-09-13
KI7PHV 2026-09-13
KB7QBN 2026-09-14

Starting with AB7

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AB7FI ID · 2027-01-04
AB7QQ OR · 2027-01-25
AB7PM MT · 2027-02-11
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AB7LV OR · 2027-05-10

Full history → Vanity availability → Callsign genealogy →