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Area Code Detail

Area Code 557

Missouri (St. Louis, St. Louis County, Florissant, Crestwood, Hazelwood, Kirkwood, and surrounding suburbs of St. Louis) · In service since August 12, 2022

MO
Reports, 30 Days 24

Recent FCC and FTC complaint records tied to this area code.

Reports, 180 Days 77

Broader complaint volume used to prioritize indexable pages.

Active Prefixes 82

Distinct NPA-NXX prefixes surfaced from routing and assignment data.

Carriers / Assignees 26

Named carriers, assignees, or code holders found in routing data.

Cities / Rate Centers 7

Distinct cities or rate centers attached to this area code.

States / Territories 1

Coverage footprint visible from NANPA, pooled block, and Canada routing data.

North American Phone Intelligence

Search a phone number, area code, exchange, or short code

Paste raw digits, a formatted phone number, an area code, an NPA-NXX block, or a short code. US and Canada phone lookups route automatically, and international iMessage checks are available separately.

Phone LookupTop ComplaintsArea CodesNPA-NXXiMessage
Examples: 206-739-5800, 206, 206-739, 48369
Overview

What this area code covers

Missouri (St. Louis, St. Louis County, Florissant, Crestwood, Hazelwood, Kirkwood, and surrounding suburbs of St. Louis)

overlaid on 314

Common cities and rate centers

Creve Coeur Kirkwood Ladue Mehlville Oakville Saint Louis Sappington

Top carriers and assignees

  • NEW CINGULAR WIRELESS PCS, LLC - IL · 214 routing rows
  • ONVOY, LLC - MO · 194 routing rows
  • TELEPORT COMMUNICATIONS AMERICA, LLC - MO · 164 routing rows
  • CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO · 47 routing rows
  • ONVOY SPECTRUM, LLC · 25 routing rows
  • BOOST SUBSCRIBERCO L.L.C. · 18 routing rows
  • E. RITTER COMMUNICATIONS, LLC · 11 routing rows
  • NUSO, LLC · 9 routing rows
  • MULTIPLE OCN LISTING · 9 routing rows
  • U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS · 9 routing rows
  • BANDWIDTH.COM CLEC, LLC - MO · 8 routing rows
  • WAVENATION, LLC · 8 routing rows
NPA-NXX

Prefix directory inside area code 557

Each prefix below is collapsed to one primary locality row so you can scan the area code by prefix without the duplicated block-level assignment rows.

Prefix Primary Rate Center Primary City State
557-200-XXXX LADUE Ladue MO
557-201-XXXX KIRKWOOD Kirkwood MO
557-202-XXXX ST LOUIS Saint Louis MO
557-203-XXXX MEHLVILLE Mehlville MO
557-204-XXXX ST LOUIS Saint Louis MO
557-205-XXXX ST LOUIS Saint Louis MO
557-206-XXXX ST LOUIS Saint Louis MO
557-207-XXXX OAKVILLE Oakville MO
557-208-XXXX LADUE Ladue MO
557-209-XXXX KIRKWOOD Kirkwood MO
557-210-XXXX LADUE Ladue MO
557-211-XXXX XXXXXXXXXX MO
557-212-XXXX MEHLVILLE Mehlville MO
557-213-XXXX ST LOUIS Saint Louis MO
557-214-XXXX ST LOUIS Saint Louis MO
557-215-XXXX ST LOUIS Saint Louis MO
557-216-XXXX ST LOUIS Saint Louis MO
557-217-XXXX SAPPINGTON Sappington MO
557-218-XXXX LADUE Ladue MO
557-219-XXXX LADUE Ladue MO
557-220-XXXX CREVECOEUR Creve Coeur MO
557-221-XXXX MEHLVILLE Mehlville MO
557-222-XXXX ST LOUIS Saint Louis MO
557-223-XXXX LADUE Ladue MO
557-224-XXXX CREVECOEUR Creve Coeur MO
557-225-XXXX LADUE Ladue MO
557-226-XXXX CREVECOEUR Creve Coeur MO
557-227-XXXX KIRKWOOD Kirkwood MO
557-228-XXXX ST LOUIS Saint Louis MO
557-229-XXXX KIRKWOOD Kirkwood MO
557-230-XXXX SAPPINGTON Sappington MO
557-231-XXXX ST LOUIS Saint Louis MO
557-232-XXXX LADUE Ladue MO
557-233-XXXX ST LOUIS Saint Louis MO
557-234-XXXX ST LOUIS Saint Louis MO
557-235-XXXX KIRKWOOD Kirkwood MO
557-236-XXXX LADUE Ladue MO
557-237-XXXX LADUE Ladue MO
557-238-XXXX KIRKWOOD Kirkwood MO
557-239-XXXX ST LOUIS Saint Louis MO
557-240-XXXX LADUE Ladue MO
557-241-XXXX LADUE Ladue MO
557-242-XXXX ST LOUIS Saint Louis MO
557-243-XXXX ST LOUIS Saint Louis MO
557-244-XXXX KIRKWOOD Kirkwood MO
557-245-XXXX ST LOUIS Saint Louis MO
557-246-XXXX ST LOUIS Saint Louis MO
557-247-XXXX MEHLVILLE Mehlville MO
557-248-XXXX ST LOUIS Saint Louis MO
557-249-XXXX LADUE Ladue MO
557-250-XXXX ST LOUIS Saint Louis MO
557-251-XXXX KIRKWOOD Kirkwood MO
557-273-XXXX ST LOUIS Saint Louis MO
557-311-XXXX XXXXXXXXXX MO
557-333-XXXX SAPPINGTON Sappington MO
557-362-XXXX ST LOUIS Saint Louis MO
557-411-XXXX XXXXXXXXXX MO
557-444-XXXX CREVECOEUR Creve Coeur MO
557-454-XXXX ST LOUIS Saint Louis MO
557-467-XXXX ST LOUIS Saint Louis MO
557-500-XXXX ST LOUIS Saint Louis MO
557-507-XXXX ST LOUIS Saint Louis MO
557-511-XXXX XXXXXXXXXX MO
557-555-XXXX DIR ASST MO
557-557-XXXX ST LOUIS Saint Louis MO
557-567-XXXX KIRKWOOD Kirkwood MO
557-611-XXXX XXXXXXXXXX MO
557-653-XXXX ST LOUIS Saint Louis MO
557-700-XXXX MO
557-711-XXXX XXXXXXXXXX MO
557-747-XXXX ST LOUIS Saint Louis MO
557-777-XXXX CREVECOEUR Creve Coeur MO
557-811-XXXX XXXXXXXXXX MO
557-888-XXXX KIRKWOOD Kirkwood MO
557-911-XXXX XXXXXXXXXX MO
557-950-XXXX MO
557-953-XXXX ST LOUIS Saint Louis MO
557-958-XXXX MO
557-959-XXXX MO
557-976-XXXX MO
557-996-XXXX ST LOUIS Saint Louis MO
557-999-XXXX SAPPINGTON Sappington MO
Recent Signals

Latest complaint activity tied to 557

Complaint pages are the strongest indexing opportunity for this site right now, especially for exact phone numbers and toll-free exchanges.

FTC report from Irvine, MISSOURI

May 4, 2026 at 7:51 PM

557-204-0088 was logged as a live voice. Category: Dropped call or no message. Violation date: April 30, 2026 at 12:45 PM.

FTC report from KENTUCKY

April 30, 2026 at 5:10 PM

This report was logged as a robocall. Category: Dropped call or no message. Violation date: April 30, 2026 at 3:31 PM.

FTC report from KENTUCKY

April 29, 2026 at 1:27 PM

This report was logged as a robocall. Category: Dropped call or no message. Violation date: April 29, 2026 at 10:56 AM.

FTC report from Joplin, MISSOURI

April 28, 2026 at 7:07 PM

557-202-7988 was logged as a robocall. Category: Dropped call or no message. Violation date: April 23, 2026 at 9:21 AM.

FTC report from Joplin, MISSOURI

April 28, 2026 at 6:58 PM

557-200-8895 was logged as a robocall. Category: Dropped call or no message. Violation date: April 24, 2026 at 9:41 AM.

FTC report from Oak Creek, WISCONSIN

April 27, 2026 at 11:19 AM

557-209-2809 was logged as a live voice. Category: Calls pretending to be government, businesses, or family and friends. Violation date: April 25, 2026 at 12:00 AM.

FTC report from Halifax, VIRGINIA

April 27, 2026 at 10:33 AM

557-294-0629 was logged as a unwanted call. Violation date: April 27, 2026 at 10:13 AM.

FTC report from Myrtle, MISSOURI

April 26, 2026 at 1:27 PM

557-207-9377 was logged as a live voice. Violation date: April 26, 2026 at 12:03 PM.

FTC report from Arroyo Grande, CALIFORNIA

April 24, 2026 at 7:26 PM

557-209-2852 was logged as a unwanted call. Category: No Subject Provided. Violation date: April 24, 2026 at 3:27 PM.

FTC report from Saint Louis, MISSOURI

April 24, 2026 at 7:19 PM

557-200-4076 was logged as a robocall. Violation date: April 23, 2026 at 10:15 AM.

FTC report from Chesterfield, MISSOURI

April 24, 2026 at 12:37 PM

557-204-0712 was logged as a live voice. Category: Warranties & protection plans. Violation date: April 24, 2026 at 11:33 AM.

FTC report from Chesterfield, MISSOURI

April 23, 2026 at 8:18 PM

557-204-0661 was logged as a live voice. Category: Vacation & timeshares. Violation date: April 23, 2026 at 7:21 PM.

FTC report from Springfield, MISSOURI

April 23, 2026 at 4:17 PM

557-212-5529 was logged as a live voice. Violation date: April 23, 2026 at 10:29 AM.

FTC report from Auburn, NEW YORK

April 23, 2026 at 11:49 AM

557-207-0945 was logged as a robocall. Violation date: April 23, 2026 at 12:00 AM.

FTC report from St. Louis, MISSOURI

April 22, 2026 at 11:07 AM

557-204-0635 was logged as a live voice. Category: Vacation & timeshares. Violation date: April 20, 2026 at 4:32 AM.

FTC report from Saint Louis, MISSOURI

April 22, 2026 at 8:59 AM

557-222-4038 was logged as a live voice. Violation date: April 21, 2026 at 6:11 PM.

FTC report from St Louis, MISSOURI

April 21, 2026 at 6:23 PM

557-999-6666 was logged as a robocall. Violation date: April 21, 2026 at 12:00 AM.

FTC report from NEW JERSEY

April 21, 2026 at 1:24 PM

557-274-8218 was logged as a unwanted call. Category: No Subject Provided. Violation date: April 21, 2026 at 12:37 PM.

FTC report from Glastonbury, CONNECTICUT

April 20, 2026 at 12:44 PM

557-212-5921 was logged as a unwanted call. Category: Dropped call or no message. Violation date: April 15, 2026 at 4:10 PM.

FTC report from NEVADA

April 16, 2026 at 4:17 PM

557-210-7987 was logged as a unwanted call. Category: No Subject Provided. Violation date: April 16, 2026 at 1:17 PM.

FTC report from Omaha, NEBRASKA

April 14, 2026 at 3:41 PM

557-221-8025 was logged as a unwanted call. Violation date: April 14, 2026 at 2:00 PM.

FTC report from Grandview, MISSOURI

April 10, 2026 at 6:11 PM

557-222-6045 was logged as a robocall. Category: Calls pretending to be government, businesses, or family and friends. Violation date: April 10, 2026 at 8:21 AM.

FTC report from MISSOURI

April 8, 2026 at 3:15 PM

557-222-4090 was logged as a robocall. Violation date: April 8, 2026 at 10:55 AM.

FTC report from Seattle, WASHINGTON

April 7, 2026 at 8:11 PM

557-210-7987 was logged as a robocall. Category: Dropped call or no message. Violation date: April 6, 2026 at 4:25 PM.

FTC report from Coats, NORTH CAROLINA

April 5, 2026 at 6:58 PM

557-992-6756 was logged as a robocall. Category: Calls pretending to be government, businesses, or family and friends. Violation date: April 3, 2026 at 11:29 AM.

FTC report from Frisco, COLORADO

April 5, 2026 at 4:20 PM

557-233-6004 was logged as a robocall. Violation date: April 5, 2026 at 11:05 AM.

FTC report from Redondo Beach, CALIFORNIA

April 2, 2026 at 6:02 PM

557-226-9878 was logged as a live voice. Category: Dropped call or no message. Violation date: April 2, 2026 at 3:00 PM.

FTC report from Saint Louis, MISSOURI

April 2, 2026 at 12:55 PM

557-222-3892 was logged as a live voice. Violation date: April 2, 2026 at 11:09 AM.

FTC report from INDIANA

April 1, 2026 at 3:19 PM

557-203-5857 was logged as a live voice. Violation date: March 31, 2026 at 8:03 PM.

FTC report from Boca Raton, FLORIDA

March 31, 2026 at 10:25 AM

557-210-7669 was logged as a robocall. Violation date: March 31, 2026 at 10:15 AM.

FTC report from OHIO

March 23, 2026 at 11:58 AM

557-233-6082 was logged as a robocall. Violation date: March 20, 2026 at 4:04 PM.

FTC report from MISSOURI

March 20, 2026 at 9:09 AM

557-217-6869 was logged as a live voice. Category: Dropped call or no message. Violation date: March 18, 2026 at 12:00 AM.

FTC report from MISSOURI

March 20, 2026 at 9:09 AM

557-217-6867 was logged as a live voice. Category: Dropped call or no message. Violation date: March 19, 2026 at 12:00 AM.

FTC report from MISSOURI

March 20, 2026 at 9:08 AM

557-217-6866 was logged as a live voice. Category: Dropped call or no message. Violation date: March 20, 2026 at 12:00 AM.

FTC report from OHIO

March 19, 2026 at 11:31 AM

557-233-6109 was logged as a robocall. Category: No Subject Provided. Violation date: March 19, 2026 at 11:29 AM.

FTC report from Hines, OREGON

March 17, 2026 at 11:32 AM

557-209-0121 was logged as a robocall. Category: Calls pretending to be government, businesses, or family and friends. Violation date: March 17, 2026 at 7:21 AM.

FTC report from Akron, OHIO

March 17, 2026 at 10:28 AM

This report was logged as a robocall. Violation date: March 12, 2026 at 5:38 PM.

FCC report from Salado, TX

March 13, 2026 at 9:35 PM

557-212-5863 was logged as a prerecorded voice. Unwanted Calls. Contact method: Wireless (cell phone/other mobile device).

FTC report from Phillipsburg, NEW JERSEY

March 12, 2026 at 1:16 PM

557-210-7450 was logged as a robocall. Violation date: March 6, 2026 at 4:52 PM.

FTC report from Chadwick, MISSOURI

March 10, 2026 at 11:33 AM

This report was logged as a robocall. Category: No Subject Provided. Violation date: March 10, 2026 at 10:03 AM.