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WP4EM

Expired2x2District 4

No competing applications on record.

License HolderDe La Cruz-Butler, Luis R

License ClassTechnician

Min. Class RequiredGeneral

LocationIsabela, PR

Grant DateNov 6, 2014

Expiration DateNov 6, 2024

Available for ApplicationsNov 7, 2026

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WP4EM

Expired2x2District 4

No competing applications on record.

License HolderDe La Cruz-Butler, Luis R

License ClassTechnician

Min. Class RequiredGeneral

LocationIsabela, PR

Grant DateNov 6, 2014

Expiration DateNov 6, 2024

Available for ApplicationsNov 7, 2026

WP4EM is a 2x2 format amateur radio callsign. It is currently registered to De La Cruz-Butler, Luis R in Isabela, PR. There are currently no competing vanity applications or pending FCC filings on record for this callsign. Add it to your watchlist to receive an immediate alert if another operator files a vanity application.

CW & Voice Analysis

Morse Code

.-- .--. ....- . --

CW Weight: 29 units(Light (fast to send))

Voice Phonetics

Whiskey Papa Four Echo Mike

Readability: 8.5/10(High readability)

Available Nov 7, 2026 (102 days remaining)

Requires General license or higher to apply for this callsign format (2x2).

License History

License RenewedNov 6, 2014
License IssuedAug 16, 2004

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

No competing applications on record. Verify on the FCC ULS application search before filing.

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FCC data as of Jul 25, 2026 — may be delayed

Is WP4EM Available? FCC Vanity Status & Watchlist