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

AB4ZC

Active

BLOCKER, MIKE W

Location: HUNTSVILLE, AL
Class: Amateur Extra
Granted: 2020-08-11
Expires: 2030-09-25
Previous call: N4YZP
FRN: 0003915873

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Vanity availability

Held

Currently held

AB4ZC 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

N4YZPactive· G
Carroll, Walter WALgranted 2025-01-24
KX4YZPcancelled· G
Carroll, Walter WALgranted 2024-12-14cancelled 2025-01-24
KQ4YZPcancelled· T
Carroll, Walter WALgranted 2024-11-23cancelled 2024-12-14

License history

0 events

No recorded events.

More vanity slots coming available

From Alabama

All →

KQ4UUE 2026-09-09
KG4SUF 2026-09-10
KQ4TEB 2026-09-10
KQ4UQY 2026-09-10
KQ4UVF 2026-09-10

Starting with AB4

All →

AB4LC AL · 2026-09-14
AB4BH NC · 2027-01-14
AB4NH TN · 2027-01-17
AB4RM FL · 2027-02-15
AB4N TN · 2027-03-21

Full history → Vanity availability → Callsign genealogy →