Area Code 423 – Tennessee

Area Code Details

Area Code

423

State / Province

Tennessee

Country

United States

Time Zone

ET

IANA Zone

America/New_York

Country Code

US

Cities & Counties

Hamilton County

Chattanooga

Sullivan County

Kingsport

Other Area Codes in Tennessee (6)

• 615 — CT
• 629 — CT
• 731 — CT
• 865 — ET
• 901 — CT
• 931 — CT

Nearby Area Codes

• 424 — California (US • PT)
• 425 — Washington (US • PT)
• 419 — Ohio (US • ET)
• 418 — Quebec (CA • ET)
• 417 — Missouri (US • CT)
• 416 — Ontario (CA • ET)

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Frequently Asked Questions

What time zone is area code 423 in?

Area code 423 is in the ET time zone (America/New_York). It serves Tennessee, United States.

Where is area code 423 located?

Area code 423 covers Tennessee in United States. Major cities include Chattanooga, Kingsport.

What cities use area code 423?

Cities served by area code 423 include: Chattanooga, Kingsport.

What is the current time in area code 423?

The live clock on this page shows the real-time current time for area code 423 (ET time zone). It updates every second.

Is area code 423 in the US or Canada?

Area code 423 is in United States (US), specifically in Tennessee.

What other area codes are in Tennessee?

Other area codes in Tennessee include: 615, 629, 731, 865, 901, 931.

How do I call area code 423 from another time zone?

When calling area code 423, remember it's in the ET time zone. Use the time converter above to find the best time to call.

What counties does area code 423 cover?

Area code 423 covers: Hamilton County, Sullivan County.