Confidence: Medium · Source: FCC ULS · As of 2026-09-11

W3EFI

Active

DIEHL, DENNIS H

Location: LEHIGHTON, PA
Class: Amateur Extra
Granted: 2016-12-08
Expires: 2026-12-08
Previous call: WB3EFI
FRN: 0015746951

Get notified about status changes and vanity availability for this callsign.

Vanity availability

Held

Currently held

W3EFI 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

WB3EFI
no FCC ULS record on file

License history

0 events

No recorded events.

More vanity slots coming available

From Pennsylvania

All →

KB3ZFD 2026-09-11
KB3ZFE 2026-09-13
KC3WYD 2026-09-13
KA3KEP 2026-09-14
KA3UYT 2026-09-14

Starting with W3

All →

W3AHR PA · 2026-09-20
W3YMB PA · 2026-09-21
W3TAL MD · 2026-09-28
W3EOP PA · 2026-10-07
W3ACC MD · 2026-10-09

Full history → Vanity availability → Callsign genealogy →