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KC7LDO

Expired2x3District 7

No competing applications on record.

License HolderMAYER, MATTHEW K

License ClassTechnician

Min. Class RequiredTechnician

LocationPortland, OR

Grant DateMay 29, 2015

Expiration DateMay 29, 2025

Available for ApplicationsMay 30, 2027

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KC7LDO

Expired2x3District 7

No competing applications on record.

License HolderMAYER, MATTHEW K

License ClassTechnician

Min. Class RequiredTechnician

LocationPortland, OR

Grant DateMay 29, 2015

Expiration DateMay 29, 2025

Available for ApplicationsMay 30, 2027

KC7LDO is a 2x3 format amateur radio callsign. It is currently registered to MAYER, MATTHEW K in Portland, OR. 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: 44 units(Heavy (slower to send))

Voice Phonetics

Kilo Charlie Seven Lima Delta Oscar

Readability: 7/10(Good readability)

Available May 30, 2027 (259 days remaining)

Requires Technician license or higher to apply for this callsign format (2x3).

License History

License RenewedMay 29, 2015
License RenewedApr 26, 2005
FRN Association Letter SentApr 26, 2005

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.

Search external databases

QRZ ↗HamQTH ↗

Explore nearby callsigns

← KC7LDN KC7LDP →

FCC data as of Sep 12, 2026 — may be delayed

Is KC7LDO Available? FCC Vanity Status & Watchlist