Tennessee · Central Time
731 Area Code
Area code 731 is in Tennessee, serving western Tennessee outside the Memphis area, including Jackson and Dyersburg. It is in the Central Time zone.
Last updated October 1, 2026 · Source: NANPA
Where is the 731 area code?
731 is a Tennessee area code covering western Tennessee outside the Memphis area, including Jackson and Dyersburg. In the wider directory it sits in the South region.
Cities in the 731 area code
- Jackson
- Dyersburg
- Martin
- Union City
- Paris
- Humboldt
- Lexington
- Milan
- Brownsville
- Ripley
- Savannah
- Henderson
Counties served by 731
Madison County, Dyer County, Weakley County, Obion County, Henry County, Gibson County, Haywood County, Lauderdale County, Carroll County and Hardin County.
Time zone note: Eastern in Knoxville and Chattanooga; Central in Nashville, Memphis and most of the state.
Dialing 731
Jackson, TN is currently served by the single area code 731, with no overlay. Ten-digit dialing (area code + seven-digit number) always works and is increasingly the norm nationwide; some local calls may still connect with seven digits. If a future overlay is added, 10-digit dialing would become mandatory.
From outside the US, dial +1 731 followed by the seven-digit number.
History of the 731 area code
731 went into service on February 12, 2001, created when it was split from 901. It serves Jackson and the surrounding part of Tennessee. For how codes are created, split, and overlaid, see how area codes work.
Is 731 a scam or spam risk?
731 is a legitimate geographic area code, not a premium or toll line, so a call from it costs you nothing extra. That said, scammers frequently spoof real local area codes to look familiar on caller ID. A genuine 731 number on your screen is no guarantee the caller is in Jackson, TN or trustworthy. See spam & scam-risk area codes for how spoofing works and how to respond.
Other Tennessee area codes
Explore more
See every code in Tennessee, compare codes across the South region, or view all Central Time codes. You can also browse the 7XX block or the complete numeric list of US area codes.
New to how this all works? Start with how area codes work, then read up on overlays, 10-digit dialing, and spam & scam-risk codes. To check another number, use the area code lookup tool.
Quick answers
731 area code FAQ
Where is the 731 area code?
The 731 area code is in Tennessee, covering western Tennessee outside the Memphis area, including Jackson and Dyersburg, in the South region.
What cities are in the 731 area code?
Cities in the 731 area code include Jackson, Dyersburg, Martin, Union City, Paris, Humboldt, Lexington, Milan, Brownsville and Ripley.
What time zone is 731 in?
731 is in the Central Time zone. Eastern in Knoxville and Chattanooga; Central in Nashville, Memphis and most of the state.
When did the 731 area code start?
731 went into service on February 12, 2001.
Do I have to dial 10 digits for 731?
Ten-digit dialing always works, and many areas now require it; some local calls in this area may still connect with seven digits.
Is 731 a toll-free or premium code?
No. 731 is a standard geographic area code, so calling it costs the same as any local or long-distance call on your plan. Toll-free calls use 800, 888, 877, 866, 855, 844 or 833.