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

K4SF

Cancelled

ENGLUND, JOHN B

Location: FAIRFIELD, CT
Class: Amateur Extra
Granted: 2009-04-24
Expires: 2019-04-24
FRN: 0009045220

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Vanity availability

Unknown

Status unknown

No vanity-slot record on file for K4SF. Either it has never been issued, is currently held by an active license, or hasn't been re-computed since its last freeing event.

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

KA3Cactive· E
CASTELLANOS, LUIS MGAgranted 2024-05-07
N1LMCcancelled· E
CASTELLANOS, LUIS MPAgranted 2008-11-07cancelled 2014-05-17
KJ4GEScancelled· G
CASTELLANOS, LUIS MMAgranted 2008-08-21cancelled 2008-11-07

License history

0 events

No recorded events.

More vanity slots coming available

From Connecticut

All →

KC1VGT 2026-09-10
KD0TBC 2026-09-10
N1DWY 2026-09-12
W1BEK 2026-09-13
KB1ITJ 2026-09-15

Starting with K4

All →

K4HCL FL · 2026-09-09
K4CYG FL · 2026-09-10
K4LWW NC · 2026-09-10
K4ONS NC · 2026-09-10
K4YDD FL · 2026-09-10

Full history → Vanity availability → Callsign genealogy →