320 area code
St. Cloud area, Central Time.Area code 320 covers St. Cloud, Alexandria, Willmar and 142 more places in Minnesota, on Central Time.
Right now in St. Cloud
Central Time (CST, UTC-6; CDT, UTC-5 in summer)
Calling hours: Every day, 9 AM to 9 PM (Minnesota law)
Small talk
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Where 320 numbers come from
Numbers are issued by rate center, a billing area named for its main town. 320 has 145. Each one's share is how many 320 numbers start there. Its biggest metro area is Minneapolis-St. Paul-Bloomington, MN-WI.
- St. Cloud17%
- Alexandria4%
- Willmar4%
- Little Falls3%
- Hutchinson2%
Also: Pine City, Litchfield, Braham, Glencoe, Mora, Morris, Ogilvie, Rush City, Granite Falls, Hinckley, Montevideo, Ortonville + 128 more
Share of exchanges (blocks of 10,000 numbers). Source: NANPA rate center and exchange reports, November 10, 2026
When can you call a 320 number?
Sales calls to homes and cell phones have legal hours, set by Minnesota law. Hold every 320 number to them, since you can't tell a work line from a personal cell.
What applies to 320Every day, 9 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)
- Minnesota lawEvery day, 9 AM to 9 PMCalls to residences.Minn. Stat. 325E.30 (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
The 320 area code
320 went into service on March 17, 1996, split off from 612. Local calls can still be dialed with 7 digits.
- 1996320 starts
Source: NANPA area code database
Calling a list of 320 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.
320 area code FAQ
What area code is 320?
320 is a Minnesota area code for St. Cloud, Alexandria, Willmar, Little Falls and 141 more places.
What time zone is the 320 area code in?
Central Time (CST, UTC-6; CDT, UTC-5 in summer).
What are the calling hours for 320 numbers?
Every day, 9 AM to 9 PM, local time, under Minnesota law.
When did the 320 area code start?
On March 17, 1996. It was split from 612.
Calling 320 numbers? Reach more of them.
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