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Exhibit 21(a)
 Subsidiaries as of December 31, 2006
 EXACT NAME OF SUBSIDIARY
    
    STATE OR OTHER JURISDICTION OFAS SPECIFIED IN ITS CHARTER
    
    INCORPORATION OR ORGANIZATIONLamar Media Corp.
    
    DelawareAmerican Signs, Inc.
    
    WashingtonCanadian TODS Limited
    
    Nova Scotia, CanadaColorado Logos, Inc.
    
    ColoradoDelaware Logos, L.L.C.
    
    DelawareFlorida Logos, Inc.
    
    FloridaGeorgia
Logos, L.L.C.
    
    GeorgiaInterstate Logos, L.L.C.
    
    LouisianaKansas Logos, Inc.
    
    KansasKentucky Logos, LLC
    
    KentuckyLamar Advantage GP Company, LLC
    
    DelawareLamar Advantage Holding Company
    
    DelawareLamar Advantage LP Company, LLC
    
    DelawareLamar Advantage Outdoor Company, L.P.
    
    DelawareLamar Advertising Company
    
    DelawareLamar Advertising of Colorado Springs, Inc.
    
    ColoradoLamar Advertising of Kentucky, Inc.
    
    KentuckyLamar Advertising of Louisiana, L.L.C.
    
    LouisianaLamar Advertising of Michigan, Inc.
    
    MichiganLamar Advertising of Oklahoma, Inc.
    
    OklahomaLamar Advertising of Penn, LLC
    
    DelawareLamar Advertising of Puerto Rico, Inc.
    
    Puerto RicoLamar Advertising of South Dakota, Inc.
    
    South DakotaLamar Advertising of Youngstown, Inc.
    
    DelawareLamar Advertising Southwest, Inc.
    
    NevadaLamar Air, L.L.C.
    
    LouisianaLamar Benches, Inc.
    
    OklahomaLamar Canadian Outdoor Company
    
    British Columbia, CanadaLamar Central Outdoor, LLC
    
    DelawareLamar DOA Tennessee Holdings, Inc.
    
    DelawareLamar DOA Tennessee, Inc.
    
    DelawareLamar Electrical, Inc.
    
    LouisianaLamar Florida, Inc.
    
    FloridaLamar I-40 West, Inc.
    
    OklahomaLamar Obie Corporation
    
    DelawareLamar OCI North Corporation
    
    DelawareLamar OCI South Corporation
    
    MississippiLamar Ohio Outdoor Holding Corp.
    
    OhioLamar Oklahoma Holding Company, Inc.
    
    OklahomaLamar Pensacola Transit, Inc.
    
    FloridaLamar T.T.R., L.L.C.
    
    ArizonaLamar Tennessee, L.L.C.
    
    TennesseeLamar Texas General Partner, Inc.
    
    LouisianaLamar Texas Limited Partnership
    
    TexasLamar Transit Advertising Canada Ltd.
    
    British Columbia, Canada




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Exhibit 21(a)
 EXACT NAME OF SUBSIDIARY
    
    STATE OR OTHER JURISDICTION OFAS SPECIFIED IN ITS CHARTER
    
    INCORPORATION OR ORGANIZATIONLC Billboard L.L.C.
    
    DelawareMaine Logos, L.L.C.
    
    MaineMichigan Logos, Inc.
    
    MichiganMinnesota Logos, Inc.
    
    MinnesotaMississippi Logos, L.L.C.
    
    MississippiMissouri Logos, LLC
    
    MissouriNebraska Logos, Inc.
    
    NebraskaNevada Logos, Inc.
    
    NevadaNew Jersey Logos, L.L.C.
    
    New JerseyNew Mexico Logos, Inc.
    
    New MexicoO. B. Walls, Inc.
    
    OregonObie Billboard, LLC
    
    OregonOhio Logos, Inc.
    
    OhioOklahoma Logos, L.L.C.
    
    OklahomaOutdoor Marketing Systems, Inc.
    
    PennsylvaniaOutdoor Marketing Systems, L.L.C.
    
    PennsylvaniaOutdoor Promotions West, LLC
    
    DelawarePremere Outdoor, Inc.
    
    IllinoisQMC Transit, Inc.
    
    Puerto RicoSouth Carolina Logos, Inc.
    
    South CarolinaTennessee Logos, Inc.
    
    TennesseeTexas Logos, L.P.
    
    TexasThe Lamar Company, L.L.C.
    
    LouisianaTLC Farms, L.L.C.
    
    LouisianaTLC Properties II, Inc.
    
    TexasTLC Properties, Inc.
    
    LouisianaTLC Properties, L.L.C.
    
    LouisianaTriumph Outdoor Holdings, LLC
    
    DelawareTriumph Outdoor Rhode Island, LLC
    
    DelawareUtah Logos, Inc.
    
    UtahVirginia Logos, LLC
    
    VirginiaWashington Logos, L.L.C.
    
    Washington