Area code 731: Tennessee
Area code 731 is a US state area code for Tennessee, on Central Time. It has 394 prefixes in service across 70 rate centers, the largest being Jackson, Paris and Dyersburg. NANPA lists no overlay code for it. Local calls there take 10 digits.
Local time in area code 731
America/Chicago
Prefixes in service
394 of 792 possible
70 rate centers
Area code 731 facts
| Location | Tennessee, United States |
|---|---|
| Time zone | Central Time |
| Overlays | None |
| Split from | 901 |
| In service since | February 12, 2001 |
| Local calls | 10 digits; toll calls 1 + 10 digits |
| Carrier | Not shown. An area code is where a number was issued; numbers port between carriers. Check line type |
Which cities and towns use area code 731?
NANPA records each prefix against a rate center, the local billing area a number belongs to, usually named after its main town. These are the 731 rate centers with the most prefixes in service. 58 smaller ones aren't listed.
| Rate center | Prefixes |
|---|---|
| Jackson | 57 |
| Paris | 23 |
| Dyersburg | 18 |
| Union City | 14 |
| Humboldt | 13 |
| Brownsville | 13 |
| Lexington | 12 |
| Bolivar | 10 |
| Huntingdon | 10 |
| Ripley | 10 |
| Selmer | 10 |
| Martin | 10 |
Source: NANPA central office code assignments, file dated 10/17/2026. Each prefix holds up to 10,000 numbers.
How do I dial a 731 number?
NANPA's dialling plan for 731: local calls inside the code take 10 digits, toll calls 1 + 10 digits. From another area code, dial 1 first. From abroad, use +1. The examples use 555-0147, from a range reserved for fictional numbers.
| Local call inside 731 | 731-555-0147 |
|---|---|
| From another US or Canadian area code | 1-731-555-0147 |
| From outside North America | +1 731 555 0147 |
| E.164, for CRMs and SMS tools | +17315550147 |
When did area code 731 start?
Area code 731 went into service on February 12, 2001, split from 901. It has no overlay, so every number in its area still starts with it.
Tools for 731 numbers
- Area code lookup
Look up any code or a whole list of numbers, or find the codes for a state or city.
- Area code time zone
Local time for a list of numbers, with a callable-now flag.
- NPA-NXX lookup
Rate center and state for one prefix, a level below the area code.
- TCPA calling hours checker
Whether it's inside the federal 8 a.m. to 9 p.m. calling window there now.
Next step
A 731 number tells you where it was issued, not what it is now.
Mobiles, landlines and VoIP lines share area codes, and numbers move between carriers. A live line-type and carrier lookup on every number in your list says which is which, and that decides which calling and texting rules apply. It's in the Email + Phone plan.
- Drop your list as a CSV
- See its rows, duplicates and bad formats, free
- 100 free email checks when you sign in with Google, no card
Ready to verify now? See the Email + Phone plan
Area code 731 questions
- What state is area code 731?
- Area code 731 is in Tennessee, United States. Its largest rate centers by number of prefixes are Jackson, Paris, Dyersburg, Union City and Humboldt.
- What time zone is area code 731 in?
- Central Time.
- Does area code 731 have an overlay?
- Not as of NANPA's file dated 10/16/2026. Every number in its area uses 731.
- When did area code 731 start?
- Area code 731 went into service on February 12, 2001, split from 901.
- Is a 731 number a cell phone or a landline?
- The area code can't tell you. In the US and Canada mobiles, landlines and VoIP lines share area codes and prefixes, and numbers move between carriers and line types. Only a live line-type lookup answers it for one number.
- How many phone numbers does area code 731 have?
- 394 of its 792 possible prefixes are in service, and each prefix holds up to 10,000 numbers. That counts prefixes assigned to carriers, not numbers in use.
Other area codes in Tennessee
Sources
Location, overlays, in-service date and dialling plan: NANPA NPA database, file dated 10/16/2026. Prefixes and rate centers: NANPA central office code assignments, 10/17/2026. Time zones mapped to the IANA time zone database. By the SimpleVerifier Team; how we build these pages.