An area code is the first three digits of a 10-digit US phone number, and it points to the region where the number was originally assigned. The area code Kansas City KS uses is 913. Kansas City, Missouri sits across the state line and uses 816, with 975 added as an overlay that serves the same Missouri territory. All three codes run on Central Time.
Because "Kansas City" names two cities in two states, the right code depends on which side of the line you mean. This article shows how to tell which code applies, which cities each one covers, and how the 975 overlay changes dialing. It also covers what the codes mean for a business that wants a local number.
At Numoreé, we sell premium vanity numbers tied to local area codes. Kansas City is a good example of why that choice needs a little care.
Why Kansas City has more than one area code
Kansas City has several area codes because it is really two cities, one in Kansas and one in Missouri, and phone codes follow state lines. Kansas City, Kansas uses 913. Kansas City, Missouri uses 816 and 975.
The short answer in one table
Code | State | Main area | Notes
913 | Kansas | Kansas City, KS, Johnson County suburbs such as Overland Park and Olathe, Leavenworth | One of the original 1947 codes, since reduced in size
816 | Missouri | Kansas City, MO, Independence, Lee's Summit, Blue Springs, Liberty | One of the original 1947 codes
975 | Missouri | Same area as 816 | Overlay added as 816 runs low on numbers
If you only need a quick answer to "what is the area code for Kansas City," pick the row that matches the state.
Why the difference matters in practice
People say "Kansas City" or "KC" for the whole metro, so a phone number alone can mislead you. A caller in Overland Park with a 913 number is in Kansas. A caller with 816 is almost certainly on the Missouri side.
Mixing up the sides causes small but real problems. You might misjudge a service area, enter the wrong state on a form, or assume a business is closer than it is. Ask "which side of State Line Road?" and the code usually settles it.
Kansas City, KS is 913. Kansas City, MO is 816 and 975.
How to find the right Kansas City area code
To find the right code, start with the state in the address, then the city, and let those two facts pick the code. It takes under a minute.
Match the address to the code
- Check the state. A Kansas address in the metro points to 913. A Missouri address points to 816 or 975.
- Check the city. Kansas City, KS, Overland Park, Olathe and Lenexa are 913. Kansas City, MO, Independence and Lee's Summit are 816 or 975.
- Confirm with the phone owner if the number is for a person. A code shows where a line started, not where it is now.
Dialing a Kansas City number
Dial all 10 digits for local calls: area code plus seven digits. The overlay on the Missouri side requires this, and it is the safest habit on both sides of the line. Calls outside your local calling area may need a 1 in front.
The "+1" you see before "913" is the country code for the United States and Canada. So "+1 913" is a Kansas number. Save every contact with its area code and you will never have to guess.
Cell phones and unknown callers
The codes work the same for cell phones as for landlines. A mobile number keeps its original code when the owner moves, so a 913 or 816 number does not prove where someone lives.
For the same reason, no Kansas City code is inherently a scam code. Scammers can fake a local-looking number. Do not call back an unknown number just because it shows a familiar code.
An area code tells you where a number started, not where the person is now.
Which places 913 covers on the Kansas side
913 covers the Kansas City, Kansas area and the northeast corner of the state. That includes Wyandotte, Johnson and Leavenworth counties, plus Atchison, Linn and Miami counties.
Cities that use 913
The most common 913 places are Kansas City, KS, Overland Park, Olathe, Lenexa, Shawnee, Leawood, Gardner, Bonner Springs, Leavenworth and Paola. Lawrence is not on the list. It uses 785.
How 913 got smaller
Kansas began with 913 as its only code in 1947. Splits then shrank it, and the last big one came in 1997, when 785 took over northern Kansas and Topeka. That is why "what is the Kansas area code" has no single answer today. The state has four:
Code | Where it is used
316 | Wichita area
620 | Southeast and southwest Kansas
785 | Northern Kansas, including Topeka and Lawrence
913 | Kansas City area and northeast Kansas
Of Kansas's four area codes, only 913 belongs to Kansas City.
How 816 and 975 work on the Missouri side
816 covers most of the Missouri side of the metro, and 975 is an overlay on that same area. Both codes serve the same addresses. A 975 number is not a different region.
What an overlay means
An overlay adds a second code to a region instead of splitting it. Existing 816 numbers did not change. When 816 runs low on unused numbers, new lines can be assigned 975. Two neighbors may have different codes, and both are local calls to each other.
That is why 10-digit dialing is required. Without it, the phone system could not tell an 816 number from a 975 number that shares the same seven digits.
Cities in the 816 and 975 area
Common places include Kansas City, MO, Independence, Lee's Summit, Blue Springs, Liberty, Raytown, Grandview, Gladstone, Belton, Raymore and Parkville. The time zone is Central for both codes, the same as 913.
975 does not move anyone. It adds capacity to the area that 816 already serves.
Choosing a Kansas City area code for your business
A Kansas City code tells customers you are local, so choose the one that matches where most of them live. Use 913 for the Kansas side and 816 or 975 for the Missouri side.
Which code fits your customers
Many businesses serve both states. If your office, signage and ads center on one side, match that code. A contractor in Olathe usually looks most local with 913. A shop in Independence fits 816. If you cover the whole metro, you can choose whichever side is your home base, since callers dial 10 digits either way.
Buying a local number
On Numoreé's Local Numbers listings, you can search by area code, city and state. Each listing shows the full number and a fixed price, with a Buy Now button. Prices across the marketplace run from about $249 to $1,995, depending on the pattern. Availability in 913, 816 or 975 changes, so search the code you want.
After purchase, we email the account number, transfer PIN, service address and porting instructions. You give those to your carrier or VoIP provider. Most transfers finish in 4 to 10 business days, depending on the carrier and number type. The price is a one-time cost for the number, and your carrier may charge separate monthly fees.
Pick the area code your customers already recognize, then choose a pattern they can remember.
Which Kansas City code do you need?
Use 913 for Kansas City, Kansas and the Kansas suburbs, and use 816 or 975 for Kansas City, Missouri and its neighbors. All three are on Central Time. Dial 10 digits and save contacts with their codes.
If you want a Kansas City number that fits your business, you can search local numbers by area code and compare patterns and prices in one place.