St. Louis, Missouri
Missouri · Central (UTC-6) · — · 10 cities
Cities Served by Area Code 557 (10 cities)
Additional Details
About Area Code 557
Area code 557 was introduced in 2022 as an overlay code, sharing the same geographic region as an existing area code to meet growing demand for phone numbers in the St. Louis area. The area is in the Central time zone. It covers 10 cities and communities including Bridgeton, Clayton, Ferguson, Florissant, Hazelwood and 5 more.
Phone Number Prefixes in Area Code 557
81 active NXX prefixes — 31% wireless, 69% landline. Each prefix (NXX) represents up to 10,000 phone numbers.
| Prefix | Carrier | Type | Rate Center |
|---|---|---|---|
| 557-200 | Onvoy | Landline | Ladue |
| 557-201 | Teleport Communications America | Landline | Kirkwood |
| 557-202 | Comcast | Landline | St Louis |
| 557-203 | T-Mobile | Wireless | Mehlville |
| 557-204 | Five9 | Landline | St Louis |
| 557-205 | Teleport Communications America | Landline | St Louis |
| 557-206 | Teleport Communications America | Landline | St Louis |
| 557-207 | Five9 | Landline | Oakville |
| 557-208 | Onvoy | Landline | Ladue |
| 557-209 | Onvoy | Landline | Kirkwood |
| 557-210 | Verizon Wireless | Wireless | Ladue |
| 557-211 | Multiple Ocn Listing | Landline | Xxxxxxxxxx |
| 557-212 | T-Mobile | Wireless | Mehlville |
| 557-213 | AT&T Mobility | Wireless | St Louis |
| 557-214 | AT&T Mobility | Wireless | St Louis |
| 557-215 | Callworks Corporation | Landline | St Louis |
| 557-216 | Teleport Communications America | Landline | St Louis |
| 557-217 | AT&T Mobility | Wireless | Sappington |
| 557-218 | AT&T Mobility | Wireless | Ladue |
| 557-219 | Verizon Wireless | Wireless | Ladue |
| 557-220 | AT&T Mobility | Wireless | Crevecoeur |
| 557-221 | Onvoy | Landline | Mehlville |
| 557-222 | Leap Telecom | Landline | St Louis |
| 557-223 | Verizon Wireless | Wireless | Ladue |
| 557-224 | Teleport Communications America | Landline | Crevecoeur |
| 557-225 | AT&T Mobility | Wireless | Ladue |
| 557-226 | Onvoy | Landline | Crevecoeur |
| 557-227 | AT&T Mobility | Wireless | Kirkwood |
| 557-228 | Verizon Wireless | Wireless | St Louis |
| 557-229 | AT&T Mobility | Wireless | Kirkwood |
| 557-230 | AT&T Mobility | Wireless | Sappington |
| 557-231 | Teleport Communications America | Landline | St Louis |
| 557-232 | Verizon Wireless | Wireless | Ladue |
| 557-233 | Boost Subscriberco | Wireless | St Louis |
| 557-234 | AT&T Mobility | Wireless | St Louis |
| 557-235 | AT&T Mobility | Wireless | Kirkwood |
| 557-236 | Verizon Wireless | Wireless | Ladue |
| 557-237 | AT&T Mobility | Wireless | Ladue |
| 557-238 | AT&T Mobility | Wireless | Kirkwood |
| 557-239 | Teleport Communications America | Landline | St Louis |
| 557-240 | Teleport Communications America | Landline | Ladue |
| 557-241 | Onvoy | Landline | Ladue |
| 557-242 | Onvoy | Landline | St Louis |
| 557-243 | AT&T Mobility | Wireless | St Louis |
| 557-244 | AT&T Mobility | Wireless | Kirkwood |
| 557-245 | Teleport Communications America | Landline | St Louis |
| 557-246 | Wavenation | Landline | St Louis |
| 557-247 | AT&T Mobility | Wireless | Mehlville |
| 557-248 | E. Ritter Communications | Landline | St Louis |
| 557-249 | Onvoy | Landline | Ladue |
| 557-250 | U.S. Telepacific | Landline | St Louis |
| 557-273 | Teleport Communications America | Landline | St Louis |
| 557-311 | Multiple Ocn Listing | Landline | Xxxxxxxxxx |
| 557-333 | Onvoy | Landline | Sappington |
| 557-362 | Teleport Communications America | Landline | St Louis |
| 557-411 | Multiple Ocn Listing | Landline | Xxxxxxxxxx |
| 557-444 | Onvoy | Landline | Crevecoeur |
| 557-454 | Teleport Communications America | Landline | St Louis |
| 557-467 | Onvoy | Landline | St Louis |
| 557-500 | Spectrum | Landline | St Louis |
| 557-507 | Spectrum | Landline | St Louis |
| 557-511 | Multiple Ocn Listing | Landline | Xxxxxxxxxx |
| 557-555 | Multiple Ocn Listing | Landline | Dir Asst |
| 557-557 | Onvoy | Landline | St Louis |
| 557-567 | Spectrum | Landline | Kirkwood |
| 557-611 | Multiple Ocn Listing | Landline | Xxxxxxxxxx |
| 557-653 | Teleport Communications America | Landline | St Louis |
| 557-700 | Landline | ||
| 557-711 | Multiple Ocn Listing | Landline | Xxxxxxxxxx |
| 557-747 | Teleport Communications America | Landline | St Louis |
| 557-777 | Terra Nova Telecom | Landline | Crevecoeur |
| 557-811 | Multiple Ocn Listing | Landline | Xxxxxxxxxx |
| 557-888 | Terra Nova Telecom | Landline | Kirkwood |
| 557-911 | Multiple Ocn Listing | Landline | Xxxxxxxxxx |
| 557-950 | Landline | ||
| 557-953 | Teleport Communications America | Landline | St Louis |
| 557-958 | Landline | ||
| 557-959 | Landline | ||
| 557-976 | Landline | ||
| 557-996 | Teleport Communications America | Landline | St Louis |
| 557-999 | Wiretap Telecom | Landline | Sappington |
All 9 area codes in Missouri
About Area Code 557
Area code 557 rolled into Missouri back in 2022, stepping in to handle the growing demand for phone numbers around St. Louis. Picture this: the city's been buzzing with new residents and businesses, and the existing codes just couldn't keep up. So, 557 became an overlay, sharing the same territory as the older ones without redrawing any lines. That means it covers St. Louis proper, along with nearby spots like Bridgeton, Clayton, and Ferguson—places where you find everything from cozy suburban streets to the heart of urban life. If you're in Hazelwood or Kirkwood, you might notice 557 popping up on your caller ID, connecting calls across this slice of the Midwest. It's all about making sure folks stay connected in an area that's seen its share of growth, from historic riverfront vibes to modern-day expansions. What sets 557 apart is how it blends into daily life here, helping bridge the gap in a region that's always on the move, with its mix of family homes in Florissant and the energy of Jennings. Created as a straightforward solution to a common problem, it's quietly become a key player for locals navigating their routines.
⚠ Scam & Spam Alert for 557
In Missouri, scam calls can be a real headache, especially in areas like St. Louis. You might get hit with IRS scams where someone claims you owe money and threatens jail time if you don't pay up right away. Then there are auto warranty schemes that push bogus offers for your car's coverage, often using high-pressure tactics. Medicare fraud is another one, with callers pretending to be from the government to snag your personal details. It's smart to stay cautious, but don't panic—most of these are just attempts to trick you. Here's a simple tip: if a call seems suspicious, just hang up and look up the official contact info yourself before responding.
Local Snapshot
The St. Louis metro area is home to roughly 2.8 million people, making it a solid hub in the Midwest. Healthcare drives a lot of the jobs here, with big hospitals and research centers keeping things busy. This place is all about that iconic Gateway Arch, drawing visitors who want a taste of history. And here's something fun—St. Louis claims the title for the most beer barrels produced in the nation, thanks to its brewing legacy.
Frequently Asked Questions
Why was the 557 area code introduced in St. Louis in 2022?
The 557 area code was introduced as an overlay to address the shortage of phone numbers in the existing 314 code for the St. Louis region. This change supported the growing needs of cities like Clayton and Kirkwood amid population increases. It ensures that local residents and businesses can continue expanding without service interruptions.
How does the 557 area code relate to the historical significance of Ferguson?
Ferguson, served by the 557 area code, gained national attention due to the 2014 events related to civil rights and police reform. This area code helps connect residents to community resources and discussions about local history. It overlays existing codes to facilitate ongoing communication in this historically important city.
What role does the 557 area code play in the communities of Florissant and Hazelwood?
Florissant and Hazelwood, covered by the 557 area code, are known for their suburban development and access to St. Louis attractions like the Missouri Botanical Garden. This code supports local emergency services and daily communications in these areas. As an overlay, it provides additional numbers for the increasing residential and commercial activities in the region.