235 Area Code: Complete Guide to Location, History, and How It Works (2026)

Area code 235

The 235 area code is a Missouri telephone area code that covers the same territory as 573, including Columbia, Jefferson City, Cape Girardeau, Rolla, Hannibal, and Poplar Bluff. It launched on March 24, 2024, as an overlay code (not a split), meaning both 573 and 235 numbers now serve the same region side by side. It operates in the Central Time Zone and is not a toll-free or scam-only prefix.

What Is the 235 Area Code?

Area code 235 serves central and eastern Missouri. Regulators created it to provide additional phone number capacity in areas historically served by area code 573, which was running low on available numbers. Instead of dividing the region into two separate zones through a split, regulators introduced 235 as an overlay. As a result, area codes 235 and 573 serve the same geographic area.

Where Is the 235 Area Code Located?

The 235 missouri area code​ covers a large swath of eastern and central Missouri, stretching from just outside the St. Louis metro area down toward the Arkansas border. Major cities and communities served include:

  • Columbia, MO
  • Jefferson City, MO (state capital)
  • Cape Girardeau, MO
  • Rolla, MO
  • Hannibal, MO
  • Poplar Bluff, MO
  • Sikeston, MO
  • Fort Leonard Wood, MO
  • Farmington, MO
  • Washington, MO

235 Area Code Time Zone

All numbers in the missouri telephone code​ operate on Central Time (CT), observing Daylight Saving Time along with the rest of Missouri.

History and Timeline of Area Code 235

DateMilestone
1995Area code 573 splits off from 314 to serve most of Missouri outside St. Louis
May 12, 2022Missouri Public Service Commission approves new overlay code 235 for the 573 region
August 26, 2023Mandatory 10-digit dialing (area code + number) begins for all local calls in the 573/235 territory
March 24, 2024Area code 2

Before the overlay, residents in the region could dial just seven digits for local calls. Once 235 launched, 10-digit dialing became mandatory for every call, even between two numbers in the same neighborhood, a standard practice whenever an overlay is introduced anywhere in the U.S.

235 area code

Is 235 a Toll-Free or Scam Area Code?

No. phone area code 235​ is a standard geographic area code, not a toll-free code (toll-free codes are 800, 833, 844, 855, 866, 877, and 888). Calls to and from 235 numbers are billed like any normal Missouri local or long-distance call, depending on your plan.

573 vs. 235: What’s the Difference?

There is no functional difference between a 573 area code​ number and a 235 number. Both:

  • Cover the exact same geographic area
  • Use the same local calling rates and long-distance rules
  • Require 10-digit dialing
  • Are issued to landlines, mobile phones, and VoIP lines alike

The only difference is when providers assign the number. Existing 573 numbers remain unchanged. Since March 2024, providers have increasingly assigned new numbers with the 235 area code as the 573 numbering pool fills up.

How to Get a 235 Area Code Phone Number

You can obtain a 235 number in a few ways:

  • Through a mobile carrier — request a new line and ask if a 235 number is available for your area.
  • Through a VoIP or business phone provider — many virtual phone services let you search for and claim a 235 number even if you’re not physically in Missouri, useful for businesses wanting a local presence in Columbia, Jefferson City, or Cape Girardeau.
  • Porting an existing number — you can’t “convert” an existing 573 number into 235, but you can add a new 235 line alongside it.

Frequently Asked Questions (FAQs)

Missouri. It covers the same territory as area code 573, including Columbia, Jefferson City, Cape Girardeau, Rolla, and Hannibal.

It went into service on March 24, 2024, as an overlay to the existing 573 area code.

It’s an overlay. Both 235 and 573 numbers serve the same geographic region simultaneously; no existing numbers changed.

Central Time (CT), with Daylight Saving Time observed.

Columbia, Missouri, is the largest city served by the 235/573 overlay.

Conclusion

The 235 missouri area codes​ isn’t a mystery or a red flag; it’s simply Missouri’s newest phone prefix, layered on top of the existing 573 territory to keep the numbering pool from running dry. If you live or do business anywhere from Columbia to Jefferson City to Cape Girardeau, you’ll increasingly see 235 numbers issued alongside familiar 573 ones, with zero difference in how calls are billed or routed.

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