Area code 816

Area code 816 Kansas City, Missouri

Area code 816 is one of the original 1947 area codes, in Missouri, with numbers assigned in Kansas City, St. Joseph, Lee's Summit and 64 more places. It’s 11:14 PM there now.

State
Missouri9 area codes in Missouri
Time zone
Central11:14 PM there now
Exchanges
78567 places
Overlay
975Same area, 10-digit dialing
3 of 3 free lookups left today
  • No sign-up
  • We never contact the number
  • Spam risk included

Where area code 816 is

Numbers in 816 are assigned to 67 places in 13 counties: Cass County, Jackson County, Clay County, Platte County, Buchanan County, Clinton County, plus 7 more.

Kansas City holds most of them: 56% of the exchanges.

  • Kansas City442
  • St. Joseph40
  • Lee's Summit20
  • Belton17
  • Liberty16
  • Blue Springs15
  • Cameron13
  • Odessa8
  • Harrisonville8
  • Excelsior Springs8
  • Kearney7
  • Smithville7
  • Ferrelview6
  • Richmond6
  • Adrian5
  • Agency5
  • Oak Grove5
  • Farley5
  • Holden5
  • Greenwood5
  • Platte City4
  • Buckner4
  • Freeman4
  • Henrietta4

Phone companies in 816

785 blocks of numbers in 816 are held by 48 phone companies. The most belong to AT&T (220), Aerial Communications (83) and Inteliquent (69).

A large share, about 45%, belongs to competitive and internet phone carriers; wireless networks hold 14% and local phone and cable companies 41%.

A block’s holder is the company it was first assigned to; numbers can move to other carriers since.

History and overlays

816 has been in service since 1947, when the first North American area codes were set up.

975 (since 2023) shares the same area, so a new number there can get any of these codes and local calls are dialed with all 10 digits.

74 new exchanges were assigned since 2021, the latest in April 2025.

Calling 816

It’s 11:14 PM Central time in 816 right now.

From elsewhere in the U.S., dial 1, 816 and the 7-digit number; inside the area, all 10 digits too.

Nearby area codes

Missouri has 9 area codes: 235, 314, 417, 557, 573, 636, 660, 816 and 975.

From the North American Numbering Plan Administrator’s area code and exchange records (10/22/2026) and U.S. Census place and county names. Places and companies are where number blocks were assigned, not where anyone lives or which carrier a number uses today.

Map of the 816 area code

Map of the 816 area code around Kansas City, St. Joseph and Lee's Summit, Missouri.

Interactive map © OpenStreetMap contributors

Cities on the map

More than three a day

Every plan includes caller ID lookups.

Caller ID and carrier lookups every month, plus full reports with the owner, their address and a real FICO® Score 4.

Basic

$29a month

Try it: $1 for 1 day

  • 100 caller ID & carrier lookups a month
  • 3 full reports a month
  • Owner, address and FICO® Score 4
  • Or $99 a year

$1 today, then $29/month after 1 day · cancel anytime

Just one report

$19.99one time

No subscription

  • Who the number belongs to
  • Current address
  • FICO® Score 4 and credit profile

$19.99 once · nothing to cancel

You pick a plan after looking up a number. Full reports need a permissible purpose, like the person’s consent. Caller ID lookups past a plan’s monthly amount are 5¢ each; during a trial, up to 10 are included.

Questions about 816

Where is area code 816?

In Missouri, covering Kansas City, St. Joseph and Lee's Summit and other places across 13 counties.

What time zone is 816 in?

Central time. It was 11:14 PM there when this page loaded.

Is 816 an overlay?

Yes. 975 serves the same area, so dial all 10 digits for local calls.

Which phone companies have 816 numbers?

48 companies hold blocks; the most belong to AT&T, Aerial Communications and Inteliquent. About 14% of blocks are wireless.

Is 816 running out of numbers?

Not on record. 74 new exchanges have been assigned since 2021.