235 area code
Birch Tree area, Central Time.Area code 235 covers Birch Tree, Columbia, Cape Girardeau and 213 more places in Missouri, on Central Time. 573 covers the same area.
Right now in Birch Tree
Central Time (CST, UTC-6; CDT, UTC-5 in summer)
Calling hours: Every day, 8 AM to 9 PM (the federal rule)
Small talk
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Where 235 numbers come from
Numbers are issued by rate center, a billing area named for its main town. 235 has 216. Each one's share is how many 235 numbers start there. Its biggest metro area is St. Louis, MO-IL.
- Birch Tree23%
- Columbia11%
- Cape Girardeau11%
- Jefferson City9%
- Camdenton3%
- Flat River3%
- Versailles3%
- Fredericktown3%
- Jackson3%
- Eldon3%
- Gravois Mills3%
- Linn3%
Also: St. James, Campbell, Oran, Cardwell, Fisk, Scott City, Argyle, Freeburg, Farmington, Poplar Bluff, Lake Ozark Osage Beach, Rolla + 192 more
Share of exchanges (blocks of 10,000 numbers). Source: NANPA rate center and exchange reports, November 10, 2026
When can you call a 235 number?
Sales calls to homes and cell phones have legal hours, set by the federal rule. Hold every 235 number to them, since you can't tell a work line from a personal cell.
What applies to 235Every day, 8 AM to 9 PM
- Federal (TCPA and FTC rule)Every day, 8 AM to 9 PMCalls to residential and mobile numbers. Most calls to businesses are exempt from the FTC's rule.47 CFR 64.1200(c)(1); 16 CFR 310.4(c) (opens in a new tab)
Local time comes from the area code, not from where the person is today. Mobiles keep their number when they move. Calling hours here are a guide, not legal advice. Every state's calling hours, with sources
235 and 573
235 went into service on March 24, 2024. 235 and 573 cover the same area, so new numbers can get either code and neighbors can have different area codes. 235 holds 4% of the area's exchanges; 573 holds the most. Local calls take all 10 digits.
- 1996573 overlay
- 2024235 starts
Source: NANPA area code database
Calling a list of 235 numbers?
Paste it into the free phone number validator. It checks every number, finds each one's time zone and sorts the list by who you can call right now.
235 area code FAQ
What area code is 235?
235 is a Missouri area code for Birch Tree, Columbia, Cape Girardeau, Jefferson City and 212 more places.
What time zone is the 235 area code in?
Central Time (CST, UTC-6; CDT, UTC-5 in summer).
Is 573 the same as 235?
Same area, different code. 235 and 573 cover the same area (an overlay), so new numbers can get any of them and local calls take all 10 digits.
What are the calling hours for 235 numbers?
Every day, 8 AM to 9 PM, local time, under the federal rule.
When did the 235 area code start?
On March 24, 2024.
Calling 235 numbers? Reach more of them.
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