557 Area Code
Get a 557 Area Code Phone Number to Serve St. Louis, MO
Obtain several local and vanity phone numbers with 557 Area Code numbers for private and business pursuits from anywhere in the world. Customize your business communications with 557 local phone numbers.

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What is Current 557 Area Code Location?
557 area code is located in St. Louis, Mo, and most of its inner towns in St. Louis County. It encompasses only one county: St. Louis. It serves major cities like St. Louis (the most populous or largest city), and other small towns and communities like Florissant, Oakville, University City, and Mehlville.
The table illustrates the top locations (cities and communities) served by Area Code 557 in the US state of Missouri.
City/Town | County | TimeZone | |||||||
---|---|---|---|---|---|---|---|---|---|
Affton, MO | St. Louis | Central | |||||||
Bridgeton, MO | St. Louis | Central | |||||||
Creve Coeur, MO | St. Louis | Central | |||||||
Earth City, MO | St. Louis | Central | |||||||
Ferguson, MO | St. Louis | Central | |||||||
Florissant, MO | St. Louis | Central | |||||||
Glencoe, MO | St. Louis | Central | |||||||
Hazelwood, MO | St. Louis | Central | |||||||
Kirkwood, MO | St. Louis | Central | |||||||
Ladue, MO | St. Louis | Central | |||||||
Maryland Heights, MO | St. Louis | Central | |||||||
Mehlville, MO | St. Louis | Central | |||||||
Oakville, MO | St. Louis | Central | |||||||
Overland, MO | St. Louis | Central | |||||||
Sappington, MO | St. Louis | Central | |||||||
Spanish Lake, MO | St. Louis | Central | |||||||
St Ann, MO | St. Louis | Central | |||||||
St Louis, MO | St. Louis | Central | |||||||
University City, MO | St. Louis | Central | |||||||
Valley Park, MO | St. Louis | Central | |||||||
Webster Groves, MO | St. Louis | Central | |||||||
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How to buy an 557area code phone number?
To buy a 557 area code number, sign up with KrispCall; go to settings > My Number > Add New Number > Select USA > Advanced Filter > Enter 557 and match to the first part of the number > Click Search. Then choose your 557 number, make payment & start making & receiving calls and texts after the number activation.

557 Area Code History – Where is 557 Area Code Coming From?
557 area code is coming from St. Louis, Mo, and its neighboring areas. 557 Area Code is a telephone area code in NANP (North American Numbering Plan) that serves St. Louis, Missouri , and most parts of its inner suburbs of St. Louis County. It formed as an overlay on the 314 area code and was implemented on August 12, 2022.
Missouri Public Service Commission announced a new area code 557 to provide additional phone numbers to customers serving the same geographical areas, due to the exhaustion of phone numbers in the 314 area code. Ten digit dialing (area code + seven digit number) was also made mandatory in St. Louis County. The 557 Missouri area code covers only one county, St. Louis, and more than 50 cities in Missouri state including Florissant, Kirkwood, Oakville, & Mehlville.
Why Choose 557 Area Code Number for Business?
From establishing a local business presence in St. Louis County and its neighboring areas to relishing the power of enhanced communication features – get everything with 557 Missouri Area Code numbers for your business communications.

Access Powerful VoIP Features with your 557 Area Code Business Phone Number
Streamline business communication among your team members and customers by investing in 557 business phone numbers. Regardless of the stature of your business, take advantage of Area Code 557 Missouri phone numbers.
Areas of Application for Area Code 557 Phone Number
Practical ways businesses use 557 Missouri Area Code Numbers.
Businesses can incorporate 557 Missouri Area Code numbers to localize their business in St. Louis County while streamlining communication for enhanced business productivity and an unparalleled customer experience.

Get multiple numbers with the 557 area code and use them for backups, personal and business needs. Use second phone numbers for private and business talks may help you make a positive first impression on clients.

Use Area Code 557 for your Missouri state business phone system. Facilitate your customers with a local call to reach you cheaply and vice versa. More importantly, grow your business as a local to impact a greater audience.

Low-cost calling rates with local Area Code 557 phone numbers in Universal City, Hazelwood, and nearby areas. A cloud call center software can use these numbers to save a fortune in business communications, especially in the long run.

Create and deploy multiple vanity numbers using the 557 Area Code and track your marketing and sales campaigns. Invest in the ones that perform and revoke the ones that are not. A practical way to market and sell your products and services.

Use 557 Area Code phone numbers anywhere you need to make and receive calls, send and receive text messages, or MMS. From personal use (social media to location tracking) to SMB sectors to large enterprises.
How to get a 557 Area Code Phone Number Online?
Purchasing a 557 Area Code Phone Numbers takes only a few minutes with KrispCall. In minutes, you can follow the steps to obtain an area code 557 phone number. All you need is a valid payment detail.

Port Your 557 Area Code Number to KrispCall Cloud Telephony
You can also effortlessly port your existing 557 area code numbers to KrispCall. KrispCall provides you with a different number to keep your communication active during your porting process. The number will appear as your existing number for your outbound calls and all your inbound calls will be redirected to it. Continue conducting your business without any disruptions or modifications.
Frequently Asked Questions
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Area code 557 is a telephone area code introduced by NANP (North American Numbering Plan) that covers St. Louis, MO, and most parts of the inner towns of St. Louis County. It was formed as a code overlay to the 314 area code and was created on August 12, 2022.
Country | USA |
State | Missouri |
Major Cities | Florissant, Oakville, St. Louis |
Time Zone | Central Time Zone |
Telephone Number Format | +1 (557) XXX-XXXX |
Zip Code | 63101, 63102, 63105, 63106, 63107 |
The time zone of the 557 area code is Central Time Zone and follows Central Standard Time & Central Daylight Saving Time.
Anyone with a 557 area code local phone number can call. It can be a legitimate business call or even a scam call. Always check their online presence and do some background checks (code lookup, caller id, & reverse phone lookup) on the caller using their provided information on the call.
The zip code for the 557 area code offers a range of zip codes. The zip code of the major cities in the St. Louis area are 63101, 63102, 63103, 63104, 63105, 63106, and 63107.
The 557 area code text message is a message that has been sent or received from a telephone number registered within the 557 area code. These messages come from legit business services or sometimes scammers use them for fraudulent activities. Avoid clicking on unknown links or sharing sensitive information without verifying the authenticity of the area code 557 text messages.