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

KN4IWR

Active

Waldorf, Ivan R

Location: Raleigh, NC
Class: Amateur Extra
Granted: 2026-02-18
Expires: 2036-02-18
Previous call: KN4UUL
FRN: 0028432482

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

Vanity availability

Held

Currently held

KN4IWR 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

KN4UULcancelled· T
Waldorf, Ivan RNCgranted 2019-05-28cancelled 2026-02-18

Prior holders later became

W3MDMactive· G
Montfort, MarcFLgranted 2020-03-07

License history

0 events

No recorded events.

More vanity slots coming available

From North Carolina

All →

K4LWW 2026-09-10
K4ONS 2026-09-10
KG4TPH 2026-09-10
KK4LNB 2026-09-10
KK4LND 2026-09-10

Starting with KN4

All →

KN4ZVG FL · 2026-09-17
KN4LGK GA · 2026-09-21
KN4VXC NC · 2026-09-21
KN4RPM VA · 2026-10-07
KN4GAM GA · 2026-10-12

Full history → Vanity availability → Callsign genealogy →