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

W4DRR

Active

GREVILLIUS, ROBERT A

Location: Scott City, MO
Class: Amateur Extra
Granted: 2024-11-13
Expires: 2035-02-05
Previous call: W0DRR
FRN: 0003281169

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

Vanity availability

Held

Currently held

W4DRR 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

W0DRRactive· G
Robinson, David RCOgranted 2023-10-17
KD0YNXcancelled· G
Robinson, David RCOgranted 2013-12-18cancelled 2014-01-07

License history

0 events

No recorded events.

More vanity slots coming available

From Missouri

All →

KD0TBI 2026-09-11
KD0TBJ 2026-09-11
KD0TBK 2026-09-11
KD0TBL 2026-09-11
KD0TBM 2026-09-11

Starting with W4

All →

W4HKO FL · 2026-09-09
W4IDI AL · 2026-09-10
W4YAU TN · 2026-09-10
W4CVH VA · 2026-09-12
W4QDZ NC · 2026-09-13

Full history → Vanity availability → Callsign genealogy →