913 Area Code: Kansas City, Kansas — Cities, Nearby Codes & Business Guide

Area code 913 covers the Kansas side of the Kansas City metro area. That means Kansas City, Kansas, plus Overland Park, Olathe, Shawnee, Lenexa, Leawood and Leavenworth — most of Johnson, Wyandotte and Leavenworth counties in northeastern Kansas. The region runs on Central Time.

If the number you are looking at is on the Missouri side of the metro, it is 816, not 913. Kansas City sits on the state line, and the two halves have always had separate area codes.

913 has been in service since 1947, when it was one of the 86 original North American area codes. It has no overlay — which, as the next sections explain, makes it one of the few codes where a local call can still be dialled with seven digits.

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The 913 area code serves the Kansas portion of the Kansas City metropolitan area — a ribbon of counties along the Missouri border in the northeastern corner of the state. It was put into service in 1947 as one of the original 86 area codes of the North American Numbering Plan, and at first it covered the entire northern half of Kansas.

Explosive suburban growth in Johnson County exhausted its supply of numbers by the mid-1990s, and in 1997 the territory was split: everything from Lawrence westward became the new 785 area code, while 913 was concentrated on the Kansas City metro it still serves today.

Dialing Format and Time Zone

• Dialing format: (913) 555-0123
• International: +1 913-555-0123
• Time zone: Central Time (CT), UTC−6 Standard, UTC−5 Daylight Saving
• Year introduced: 1947 — one of the original 86 codes, reduced to the KC metro in the 1997 split

The two-state geography makes the prefix unusually informative. Because a state line rather than a landmark divides the metro, the leading digits of a phone number reveal which side of the border a caller is on — a difference that touches everything from tax jurisdictions to school districts to sports loyalties. Locals read it instantly, which is exactly why businesses on the Kansas side hold a 913 number deliberately rather than settling for the code across the river.

The 913 code covers the Kansas counties that border Missouri — chiefly Johnson, Wyandotte, and Leavenworth, along with Miami, Linn, and Atchison. That footprint runs from the dense corporate suburbs south of the river, north across the Kansas River into the industrial and residential core of Kansas City, Kansas, and out to the historic river town of Leavenworth. Four places capture its range and explain why the prefix means the Kansas side of the metro.

Overland Park

The largest city in the 913 territory and the second-largest in Kansas, Overland Park is the metro's suburban business capital — a planned expanse of corporate campuses, office parks, and master-planned neighborhoods. Its consistently high rankings for quality of life and schools have made it a magnet for headquarters and professional firms, and a 913 number is a core part of doing business there.

Olathe

The Johnson County seat, Olathe pairs rapid residential growth with a major technology presence, most visibly the global navigation company headquartered there. Its blend of family neighborhoods and engineering employers has made it one of the fastest-growing cities in the state.

Kansas City, Kansas

North across the Kansas River, Kansas City, Kansas — often shortened to KCK — anchors Wyandotte County with a working riverfront, a major medical center, and a consolidated city-county government. It carries the older, industrial character of the Kansas side, distinct from the newer suburbs to the south.

Leavenworth

Upriver from the metro, Leavenworth is the oldest incorporated city in Kansas and a historic military town. It marks the northern reach of the 913 code, connecting the suburban core to the river communities beyond.

913 reaches beyond the three core metro counties into a ribbon of eight northeastern Kansas counties along the Missouri border. Note what is not in it: Lawrence and everything west of it went to area code 785 in the 1997 split, so Douglas County is 785, not 913.

Johnson County alone accounts for more than half the code's population and drives most of its business activity. The outer counties add rural, agricultural and small-town commercial demand, which gives a 913 number a wider reach than the suburbs alone suggest.

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A 913 number signals the Kansas side of the metro specifically, and that carries weight in three sectors.

Technology and telecom in the Overland Park corridor

Overland Park hosts T-Mobile's Kansas campus — the former Sprint headquarters, and still the largest employer in the city — along with a dense cluster of software vendors, managed IT firms and agencies that supply the telecom industry. 913 is effectively the default code for that corridor, so a 913 caller ID reads as local to procurement teams and IT buyers in a way an 800 number or an out-of-state prefix does not.

Professional services in Johnson County

The Kansas side concentrates financial planners, insurance brokers, accountants and family law practices serving Leawood, Prairie Village and Mission Hills. These are referral businesses where a local prefix reads as a neighbour rather than a national chain, which matters when someone is choosing who handles their money or their estate.

Agriculture and food supply in the outer counties

Beyond the suburbs, the 913 counties take in grain and food-distribution operations running north from the Kansas River valley through Leavenworth to Atchison. Equipment dealers, co-op buyers and agricultural lenders serving those communities want a code that reads as regional rather than metropolitan — and one 913 number covers both the Overland Park office and the Atchison warehouse.

Getting the number takes minutes. Getting it to read as genuinely local takes a few more steps.

Set your hours to Central Time. 913 runs on Central, and auto-attendant greetings, voicemail schedules and business hours should match it rather than wherever the team sits. A caller in Overland Park who reaches an after-hours message at two in the afternoon will not try again.

Publish all ten digits everywhere. 913 still allows seven-digit local dialling, but write the number as (913) XXX-XXXX on the website, the Google Business Profile and every directory listing. Consistency across citations is what confirms a local presence.

Keep the number when you switch providers. 913 numbers port freely between carriers, so once a number is on signage, vehicles and listings, move it rather than replace it.

Pair it with a local address where you can. A 913 number alongside a Johnson County address anchors the listing as a Kansas-side business, and a virtual office in Overland Park or Lenexa satisfies most local citation requirements for well under $50 a month.

Unlike most codes serving a metro of its size, 913 still has no overlay — it remains a single code covering its territory, a sign that careful number management and the 1997 split kept its supply healthy. That makes the local dialing pattern unusually clean, and it leaves the surrounding codes to tell the rest of the regional story.

Across the state line, the 816 area code carries the Missouri side of the same metro, so the two codes together cover one market split by a border.

• 913 — the Kansas side of the Kansas City metro, including Overland Park, Olathe, and Kansas City, Kansas
• 816 — the Missouri side of the metro, including downtown Kansas City and the Northland
• 785 — the rest of northern and eastern Kansas, including Topeka and Lawrence, split from 913 in 1997
• 620 — southern Kansas, covering the state's rural southern tier below the metro

The state line makes the pattern easy to read: 913 numbers sit on the Kansas side, 816 numbers on the Missouri side, and 785 covers the Kansas cities beyond the suburbs. Metro companies frequently operate across the border, but the Kansas-side prefix is the one that signals Johnson County and the suburban business corridor specifically.

Getting a Kansas-side number today is an online task, not a real-estate decision. Cloud phone providers hold local 913 inventory that activates in minutes and routes anywhere, so a business can sound rooted in Johnson County without a physical office there. Because 913 reads as the Kansas side of the metro, the number lands as authentically local from Overland Park to Leavenworth, even for a team working entirely remotely.

1. 1Choose a provider — pick a cloud phone service with 913 numbers and the features the team needs, such as routing rules, call recording, and CRM integration.
2. 2Pick a number — browse available 913 combinations and choose one that reads well on a storefront or website; it will display as (913) 555-0123, or +1 913-555-0123 internationally.
3. 3Activate and route — finish verification and go live. Calls ring on any device — desk phone, laptop app, or mobile — no matter where the team actually sits.

The line then works like any established local number: add extensions, set Central Time business hours, and keep the same digits permanently, even if the company relocates within the metro. Setting up a dedicated business phone number this way takes minutes, and existing 913 lines can usually be ported into a cloud platform without changing a digit — protecting whatever recognition the number has already earned on trucks, signs, and directories.

Seven digits still works. 913 has no overlay — no second area code shares its territory — so a local call within the area can still be dialled without the area code. That puts it in a shrinking minority. Most area codes lost seven-digit dialling when an overlay arrived, and the rest largely converted when the 988 crisis line launched — eighty-two numbering plan areas moved to ten digits rather than give up their 988 prefix.

Every other area code guide in this series has had to explain why ten digits became mandatory. 913 is the exception, and it is worth knowing if you live or do business there.

The Missouri side is different. 816 was overlaid by area code 975 on 13 October 2023, which made ten-digit dialling mandatory across the metro's Missouri half. So two neighbours a mile apart, either side of State Line Road, now follow different rules.

The 975 overlay had an unusually long history. It was first approved in February 2001 for an October 2001 launch, postponed to May 2002, then suspended indefinitely when number conservation slowed the rate at which 816 was being used up. A 2021 exhaustion study revived it, and it finally went into service in 2023. Guides written before then list 816 alone.

The Kansas City metro's defining quirk is its split personality: two states, two area codes, one market. 913 signals the Kansas side — Johnson County's corporate suburbs and the Wyandotte County riverfront — while 816 signals the Missouri side, including downtown Kansas City and the neighborhoods around it. Neither is 'better'; they simply speak to different audiences within the same region.

• 913 — the Kansas side, associated with Overland Park, Olathe, and the Johnson County business corridor
• 816 — the Missouri side, associated with downtown Kansas City, the Plaza, and the Northland
• Both share Central Time and one local calling market, and calls between them are routine everyday business

For a company deciding between them, the choice comes down to where its customers are. A firm serving Overland Park offices, Olathe families, or Kansas-side contractors is far better matched by a 913 number that neighbors instantly read as their own, while a business rooted in the Missouri core leans toward 816.

Many multi-market operations simply hold one of each in the same account, so both sides of the state line see a familiar prefix while one team answers every call.

The same 'local Kansas City' quality that makes 913 useful to businesses also makes it a convenient disguise for fraud, and an affluent, densely populated suburban market is a rich target. Caller-ID spoofing lets someone anywhere in the world display a 913 prefix, so a resident sees what looks like a nearby business, bank, or county office calling.

The prefix itself proves nothing — genuine and spoofed calls look identical on screen, and scammers know a familiar local code is more likely to be answered.

• Fake bank or payment alerts — voicemails or texts about a 'suspicious transaction,' pushing you to call back or tap a link
• Prize and refund lures — claims you have won something or are owed a refund, requesting card details to 'process' it
• Utility and delivery threats — messages that your power will be cut or a package held unless you pay a small fee immediately

The reliable defense is to hang up and call back through a number found independently — on a bill, an official site, or a saved contact. No genuine bank, agency, or utility demands gift cards or wire transfers over the phone. Federal law makes it illegal to transmit misleading caller-ID information with intent to defraud, but such calls still slip through, so treat any pressure to act immediately as a warning sign in itself. For more, see federal anti-spoofing law.

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