235 Area Code: Columbia, Jefferson City & Mid-Missouri

The 235 area code is one of the newest phone codes in the entire country — it went live in March 2024 as an overlay of 573, covering the eastern half of Missouri outside the St. Louis metro.

That stretch takes in the college town of Columbia, the state capital at Jefferson City, the Mississippi River cities of Cape Girardeau and Hannibal, and a wide rural middle. There is also a quirk worth flagging up front: the digits 235 are Chad's international calling code, which sends a steady stream of confused searchers to this page.

This guide explains where 235 reaches, why it is so new, the +235 Chad mix-up, the 10-digit dialing it now requires, and how to get a 235 number from anywhere.

Where is the 235 area code?

The 235 area code covers the eastern half of Missouri outside the immediate St. Louis area — the same territory as 573. It is a broad, mostly rural region threaded by the Missouri and Mississippi rivers, anchored by a few mid-sized cities.

Cities and towns inside the 235/573 footprint include:

235 is one of America's newest area codes

Most area codes have been around for decades. 235 is barely older than your last phone upgrade. Area code 573 had served eastern Missouri since 1996, and for years it ran on a single code with seven-digit local dialing. As numbers finally ran low, regulators added 235 as an overlay — permissive dialing began in August 2023, and the code went fully into service on March 24, 2024.

That makes 235 one of the most recently activated area codes in North America. It covers the exact same ground as 573; a 235 number is simply among the first issued from the new pool. For another overlay added in the same wave, see Maryland's 227 area code, which went live in 2023.

Is 235 a country code? Meet +235, Chad

Here is the mix-up that brings many people here. A lot of "235 area code" searches are not about Missouri — someone got a call or a WhatsApp message from +235 and wants to know where it came from. +235 is the international country code for Chad, in central Africa — not a US area code.

The plus sign tells them apart:

• 235 inside a 10-digit US number (235-XXX-XXXX) is the Missouri area code.
• +235 at the start of an international number is Chad's country code.

If you are getting unexpected calls or WhatsApp messages from +235, be careful. International one-ring ("Wangiri") and WhatsApp scams often use African country codes like +235 to bait you into calling back a premium-rate number. Don't return calls from +235 numbers you don't recognize, and never share personal or financial details.

Dialing and time zone

Because 235 and 573 now share one region, 10-digit dialing is required — every local call needs the full area code. The region long used seven-digit dialing, but the 2024 overlay ended that.

The 235 area code sits in the Central Time Zone (CT) — America/Chicago — observing CST (UTC−6) in winter and CDT (UTC−5) in summer.

Why a 235 number says mid-Missouri

A 235 number reads as Columbia, Jefferson City, and the Missouri river country to anyone in the region — the university crowd at Mizzou, the capital's state offices, or the river towns from Hannibal to Cape Girardeau. For a contractor, clinic, or shop courting mid-Missouri customers, that local caller ID lifts answer rates and builds trust far better than an unknown out-of-state or toll-free line.

You do not need an office on Columbia's Broadway to hold one. My Country Mobile can assign you a 235 number and route it to the phones, laptops, and apps your team already uses, anywhere in the world.

Staying safe from 235 scam calls

235 can be spoofed two ways: domestic scammers fake a local 235 caller ID, and international scams use the +235 Chad code. A 235 on your screen does not prove the caller is really in Missouri.

A few habits keep you safe:

• Let unknown 235 calls go to voicemail; legitimate callers leave a message.
• Never share one-time codes, card numbers, or login details with an inbound caller.
• Treat unexpected +235 calls or WhatsApp messages as likely scams — don't call back.
• Use carrier spam filtering. The FCC's STIR/SHAKEN call authentication framework is why many phones now flag these as "Spam Risk."

How to get a 235 number

Getting a 235 line takes minutes, with no Missouri address required. A cloud phone provider can assign you one and route calls to the devices your team already uses:

1. Sign up for a free account — no card needed to browse inventory.
2. Search 235 (or 573) and pick a number from available eastern-Missouri inventory.
3. Choose a plan by seat count and features.
4. Route and go live — send calls to a cell, desk phone, or softphone.

Because 235 is so new, fresh inventory is often easy to find. Porting an existing 235 or 573 number runs 5–10 business days in the background while you stay live on a temporary number.

Key takeaways

• 235 is a 2024 overlay of 573 — one of the newest area codes in North America — covering eastern Missouri.
• It shares geography with 573: Columbia, Jefferson City, Cape Girardeau, Hannibal, and Rolla.
• The digits 235 are also Chad's country code (+235) — a common source of confusion and scam calls.
• The overlay makes 10-digit dialing required, and the region runs on Central Time.
• A 235 number signals a genuine mid-Missouri presence and can be held from anywhere.

Frequently asked questions