Zip Area Code

Gilliam, Louisiana

Gilliam, Louisiana, in Caddo Parish, has ZIP code 71029 and area code 318, with 457 as an overlay.

ZIP code
71029
Area codes
318, 457
Time zone
Central Time
Coordinates
32.8251, -93.8293

ZIP codes in Gilliam

ZIP codePost officeCountyArea codes
71029GilliamCaddo Parish318, 457

Area codes for Gilliam

  • Area code 318

    In service since 1957. Shares its area with 457. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

  • Area code 457

    In service since September 25, 2025. Shares its area with 318. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

Area codes here are matched from telephone rate centers, so a place near a boundary can have local numbers from either side of it.

Time zone

Gilliam is in the Central Time zone.

Towns near Gilliam