Confidence: Medium · Source: FCC ULS · As of 2026-09-10

KZ4BF

Active

Guerrero, Mark

Location: Burke, VA
Class: Amateur Extra
Granted: 2025-01-23
Expires: 2035-03-06
Previous call: NH6CF
FRN: 0001861889

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Vanity availability

Held

Currently held

KZ4BF 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

NH6CFcancelled· E
Guerrero, MarkVAgranted 2015-03-06cancelled 2023-10-11

License history

0 events

No recorded events.

More vanity slots coming available

From Virginia

All →

KK4LMX 2026-09-10
KQ4GPU 2026-09-10
KG4VBI 2026-09-12
W4CVH 2026-09-12
KQ4URY 2026-09-13

Starting with KZ4

All →

KZ4KE FL · 2026-09-10
KZ4KU AL · 2026-09-10
KZ4FM KY · 2026-09-21
KZ4JU NC · 2026-09-24
KZ4LG GA · 2026-09-28

Full history → Vanity availability → Callsign genealogy →