816 area code
Kansas City area, Central Time.Area code 816 covers Kansas City, St. Joseph, Lee's Summit and 70 more places in Missouri, on Central Time. 975 covers the same area.
Right now in Kansas City
Central Time (CST, UTC-6; CDT, UTC-5 in summer)
Calling hours: Every day, 8 AM to 9 PM (the federal rule)
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Where 816 numbers come from
Numbers are issued by rate center, a billing area named for its main town. 816 has 73. Each one's share is how many 816 numbers start there. Its biggest metro area is Kansas City, MO-KS.
- Kansas City56%
- St. Joseph5%
- Lee's Summit3%
- Belton2%
- Liberty2%
Also: Blue Springs, Cameron, Harrisonville, Excelsior Springs, Odessa, Kearney, Smithville, Ferrelview, Richmond, Adrian, Greenwood, Oak Grove + 56 more
Share of exchanges (blocks of 10,000 numbers). Source: NANPA rate center and exchange reports, November 10, 2026
When can you call an 816 number?
Sales calls to homes and cell phones have legal hours, set by the federal rule. Hold every 816 number to them, since you can't tell a work line from a personal cell.
What applies to 816Every 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
816 and 975
816 is one of the original area codes from 1947, and 660 was later split off from it. 816 and 975 cover the same area, so new numbers can get either code and neighbors can have different area codes. 816 holds 97% of the area's exchanges; 975 holds the rest. Local calls take all 10 digits.
- 1947816 starts
- 1997660 split off
- 2023975 overlay
Source: NANPA area code database
Calling a list of 816 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.
816 area code FAQ
What area code is 816?
816 is a Missouri area code for Kansas City, St. Joseph, Lee's Summit, Belton and 69 more places.
What time zone is the 816 area code in?
Central Time (CST, UTC-6; CDT, UTC-5 in summer).
Is 975 the same as 816?
Same area, different code. 816 and 975 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 816 numbers?
Every day, 8 AM to 9 PM, local time, under the federal rule.
When did the 816 area code start?
In 1947: it's one of the original area codes.
Calling 816 numbers? Reach more of them.
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