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

WP4OH

Active

HERNANDEZ CALERO, OMAR A

Location: ISABELA, PR
Class: Amateur Extra
Granted: 2025-12-06
Expires: 2035-11-14
Previous call: WP4PNN
FRN: 0025000043

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

Vanity availability

Held

Currently held

WP4OH 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

WP4PNNcancelled· T
Hernandez-Calero, Omar APRgranted 2015-10-26cancelled 2015-11-14

License history

0 events

No recorded events.

More vanity slots coming available

From Puerto Rico

All →

WP4TLD 2026-09-10
K5DTC 2026-09-14
WP4LKC 2026-09-14
KP4ECD 2026-09-16
WP3TU 2026-09-16

Starting with WP4

All →

WP4TLD PR · 2026-09-10
WP4LKC PR · 2026-09-14
WP4MRN UT · 2026-09-17
WP4TKL PR · 2026-09-17
WP4KNF PR · 2026-09-18

Full history → Vanity availability → Callsign genealogy →