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 18

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

Reports, 180 Days 107

Broader complaint volume used to prioritize indexable pages.

Active Prefixes 91

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
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

  • ONVOY, LLC - MO · 263 routing rows
  • NEW CINGULAR WIRELESS PCS, LLC - IL · 245 routing rows
  • TELEPORT COMMUNICATIONS AMERICA, LLC - MO · 156 routing rows
  • CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO · 54 routing rows
  • ONVOY SPECTRUM, LLC · 25 routing rows
  • BOOST SUBSCRIBERCO L.L.C. · 18 routing rows
  • BANDWIDTH.COM CLEC, LLC - MO · 10 routing rows
  • NUSO, LLC · 9 routing rows
  • MULTIPLE OCN LISTING · 9 routing rows
  • E. RITTER COMMUNICATIONS, LLC · 8 routing rows
  • WAVENATION, LLC · 6 routing rows
  • TELNYX LLC · 5 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
557-252-XXXX ST LOUIS Saint Louis MO
557-253-XXXX KIRKWOOD Kirkwood MO
557-254-XXXX LADUE Ladue MO
557-255-XXXX LADUE Ladue MO
557-256-XXXX MEHLVILLE Mehlville MO
557-257-XXXX CREVECOEUR Creve Coeur MO
557-258-XXXX OAKVILLE Oakville MO
557-259-XXXX SAPPINGTON Sappington MO
557-260-XXXX LADUE Ladue 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 Saint Louis, MISSOURI

August 18, 2026 at 6:05 PM

557-202-9546 was logged as a robocall. Category: Calls pretending to be government, businesses, or family and friends. Violation date: August 18, 2026 at 7:04 AM.

FTC report from MISSOURI

August 17, 2026 at 8:19 PM

557-207-9584 was logged as a live voice. Violation date: August 11, 2026 at 12:00 AM.

FTC report from Roodhouse, ILLINOIS

August 15, 2026 at 10:14 AM

557-467-2580 was logged as a live voice. Violation date: August 15, 2026 at 9:01 AM.

FTC report from St. Louis, MISSOURI

August 15, 2026 at 5:58 AM

557-223-8397 was logged as a live voice. Category: Medical & prescriptions. Violation date: August 14, 2026 at 4:51 PM.

FTC report from Hazelwood, MISSOURI

August 12, 2026 at 5:42 PM

557-500-7435 was logged as a robocall. Category: No Subject Provided. Violation date: August 12, 2026 at 8:00 AM.

FTC report from Saint Louis, MISSOURI

August 7, 2026 at 3:10 AM

557-207-9542 was logged as a robocall. Category: Dropped call or no message. Violation date: August 6, 2026 at 7:13 PM.

FTC report from GEORGIA

August 5, 2026 at 5:19 PM

This report was logged as a live voice. Category: Medical & prescriptions. Violation date: August 5, 2026 at 5:12 PM.

FTC report from GEORGIA

August 5, 2026 at 4:59 PM

This report was logged as a live voice. Category: Medical & prescriptions. Violation date: August 5, 2026 at 10:43 AM.

FTC report from GEORGIA

August 5, 2026 at 4:56 PM

This report was logged as a live voice. Category: Medical & prescriptions. Violation date: August 5, 2026 at 4:14 PM.

FTC report from GEORGIA

August 5, 2026 at 4:55 PM

This report was logged as a live voice. Category: Medical & prescriptions. Violation date: August 5, 2026 at 4:47 PM.

FTC report from GEORGIA

August 5, 2026 at 4:55 PM

This report was logged as a live voice. Category: Medical & prescriptions. Violation date: August 5, 2026 at 4:47 PM.

FTC report from GEORGIA

August 5, 2026 at 10:51 AM

This report was logged as a live voice. Category: Medical & prescriptions. Violation date: August 5, 2026 at 10:43 AM.

FTC report from GEORGIA

August 5, 2026 at 9:29 AM

This report was logged as a live voice. Category: Medical & prescriptions. Violation date: August 4, 2026 at 5:36 PM.

FTC report from GEORGIA

August 5, 2026 at 9:28 AM

This report was logged as a live voice. Category: Medical & prescriptions. Violation date: August 5, 2026 at 9:07 AM.

FTC report from GEORGIA

August 5, 2026 at 9:26 AM

This report was logged as a live voice. Category: Medical & prescriptions. Violation date: August 5, 2026 at 9:18 AM.

FTC report from MISSOURI

August 3, 2026 at 11:47 AM

557-204-7543 was logged as a robocall. Violation date: August 3, 2026 at 9:58 AM.

FTC report from Ringgold, GEORGIA

July 31, 2026 at 7:05 PM

557-467-2918 was logged as a robocall. Violation date: July 31, 2026 at 5:05 PM.

FTC report from CALIFORNIA

July 24, 2026 at 8:03 AM

557-232-4712 was logged as a live voice. Violation date: July 24, 2026 at 5:14 AM.

FTC report from TEXAS

July 20, 2026 at 8:07 AM

557-238-4193 was logged as a unwanted call. Violation date: July 20, 2026 at 1:00 AM.

FTC report from Charlotte, NORTH CAROLINA

July 17, 2026 at 5:55 PM

557-467-2078 was logged as a live voice. Category: Calls pretending to be government, businesses, or family and friends. Violation date: July 17, 2026 at 10:35 AM.

FTC report from Charlotte, NORTH CAROLINA

July 17, 2026 at 11:57 AM

557-467-2078 was logged as a live voice. Category: Calls pretending to be government, businesses, or family and friends. Violation date: July 17, 2026 at 10:35 AM.

FTC report from Charlotte, NORTH CAROLINA

July 17, 2026 at 11:54 AM

557-467-2078 was logged as a live voice. Category: Calls pretending to be government, businesses, or family and friends. Violation date: July 17, 2026 at 10:34 AM.

FTC report from Corpus Christi, TEXAS

July 16, 2026 at 9:21 AM

557-209-7751 was logged as a robocall. Violation date: July 15, 2026 at 5:05 PM.

FTC report from Cape Girardeau, MISSOURI

July 15, 2026 at 11:46 AM

557-500-7362 was logged as a robocall. Category: Computer & technical support. Violation date: July 15, 2026 at 10:30 AM.

FTC report from Columbia, SOUTH CAROLINA

July 14, 2026 at 3:51 PM

557-210-3461 was logged as a live voice. Category: Calls pretending to be government, businesses, or family and friends. Violation date: July 14, 2026 at 3:49 PM.

FTC report from MISSOURI

July 13, 2026 at 3:47 PM

557-204-0016 was logged as a live voice. Category: Medical & prescriptions. Violation date: July 13, 2026 at 2:40 PM.

FTC report from Chatsworth, GEORGIA

July 10, 2026 at 9:51 AM

557-200-8165 was logged as a robocall. Category: No Subject Provided. Violation date: July 10, 2026 at 9:50 AM.

FTC report from Cedar Springs, MICHIGAN

July 9, 2026 at 5:03 PM

This report was logged as a robocall. Violation date: July 9, 2026 at 4:37 PM.

FTC report from Benton, Ky, KENTUCKY

July 9, 2026 at 11:42 AM

557-224-3783 was logged as a robocall. Violation date: July 9, 2026 at 10:38 AM.

FTC report from MISSOURI

July 8, 2026 at 1:05 PM

557-204-0016 was logged as a live voice. Category: Medical & prescriptions. Violation date: July 8, 2026 at 10:47 AM.

FTC report from MISSOURI

July 6, 2026 at 3:21 PM

557-204-0016 was logged as a live voice. Violation date: July 6, 2026 at 2:16 PM.

FTC report from MISSOURI

July 3, 2026 at 11:04 AM

557-204-0016 was logged as a live voice. Violation date: July 2, 2026 at 11:38 AM.

FTC report from GEORGIA

July 2, 2026 at 10:05 AM

This report was logged as a live voice. Violation date: July 2, 2026 at 9:54 AM.

FTC report from GEORGIA

July 2, 2026 at 9:26 AM

This report was logged as a live voice. Violation date: July 2, 2026 at 9:24 AM.

FTC report from Cedar Springs, MICHIGAN

July 1, 2026 at 9:08 PM

This report was logged as a robocall. Category: Dropped call or no message. Violation date: July 1, 2026 at 11:45 AM.

FTC report from GEORGIA

July 1, 2026 at 5:48 PM

This report was logged as a live voice. Violation date: July 1, 2026 at 5:37 PM.

FTC report from GEORGIA

July 1, 2026 at 5:45 PM

This report was logged as a live voice. Violation date: July 1, 2026 at 4:38 PM.

FTC report from GEORGIA

July 1, 2026 at 10:29 AM

This report was logged as a live voice. Violation date: July 1, 2026 at 12:00 AM.

FTC report from GEORGIA

June 30, 2026 at 1:26 PM

This report was logged as a live voice. Violation date: June 30, 2026 at 1:12 PM.

FTC report from GEORGIA

June 30, 2026 at 10:30 AM

This report was logged as a live voice. Category: Medical & prescriptions. Violation date: June 29, 2026 at 6:32 AM.