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Area Code Detail

Area Code 637

North American numbering plan area

Reports, 30 Days 2

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

Reports, 180 Days 9

Broader complaint volume used to prioritize indexable pages.

Active Prefixes 0

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

Carriers / Assignees 0

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

Cities / Rate Centers 0

Distinct cities or rate centers attached to this area code.

States / Territories 0

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.

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Examples: 206-739-5800, 206, 206-739, 48369
Overview

What this area code covers

Regional coverage varies across the NANP data sources on this site.

Recent Signals

Latest complaint activity tied to 637

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

FTC report from NEW YORK

May 29, 2026 at 11:20 AM

637-496-3277 was logged as a robocall. Violation date: May 29, 2026 at 11:17 AM.

FTC report from ILLINOIS

May 8, 2026 at 10:18 AM

637-888-7608 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: May 8, 2026 at 9:10 AM.

FTC report from Sikar, CALIFORNIA

April 11, 2026 at 8:53 PM

637-623-2925 was logged as a live voice. Category: Calls pretending to be government, businesses, or family and friends. Violation date: October 1, 2003 at 12:00 PM.

FTC report from Miami, FLORIDA

March 18, 2026 at 2:44 PM

637-925-9926 was logged as a robocall. Violation date: March 17, 2026 at 11:17 AM.

FTC report from Wexford, PENNSYLVANIA

March 17, 2026 at 12:27 PM

This report was logged as a live voice. Violation date: March 6, 2026 at 5:31 PM.

FTC report from Birmingham, ALABAMA

March 6, 2026 at 7:28 PM

637-557-7695 was logged as a robocall. Violation date: March 6, 2026 at 5:16 PM.

FTC report from Colorado Springs, COLORADO

January 28, 2026 at 10:29 AM

This report was logged as a live voice. Category: Dropped call or no message. Violation date: January 27, 2026 at 10:01 AM.

FTC report from New Braunfels, FLORIDA

January 26, 2026 at 2:50 PM

637-538-3985 was logged as a robocall. Violation date: January 23, 2026 at 11:16 AM.

FTC report from Colorado Springs, COLORADO

January 14, 2026 at 9:26 PM

This report was logged as a live voice. Category: Dropped call or no message. Violation date: January 14, 2026 at 2:16 PM.

FTC report from IOWA

December 1, 2025 at 12:59 PM

This report was logged as a robocall. Category: Dropped call or no message. Violation date: December 1, 2025 at 11:04 AM.

FTC report from Oklahoma City, OKLAHOMA

September 26, 2025 at 12:48 AM

637-384-2047 was logged as a live voice. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: September 25, 2025 at 2:29 PM.

FTC report from Pittsville, MARYLAND

September 16, 2025 at 3:57 PM

637-539-8955 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: September 16, 2025 at 3:34 PM.

FTC report from Wexford, PENNSYLVANIA

August 19, 2025 at 10:49 AM

This report was logged as a live voice. Category: Dropped call or no message. Violation date: August 15, 2025 at 3:52 PM.

FTC report from Albuquerque, NEW MEXICO

August 6, 2025 at 5:01 PM

637-866-5567 was logged as a robocall. Violation date: August 5, 2025 at 11:43 AM.

FTC report from Wexford, PENNSYLVANIA

June 4, 2025 at 11:12 AM

This report was logged as a live voice. Violation date: June 3, 2025 at 12:29 PM.

FTC report from IOWA

February 20, 2025 at 12:57 PM

This report was logged as a unwanted call. Category: Dropped call or no message. Violation date: February 20, 2025 at 10:30 AM.

FTC report from Monroe City, MISSOURI

January 23, 2025 at 8:44 AM

637-627-7832 was logged as a unwanted call. Violation date: January 23, 2025 at 6:08 AM.

FTC report from Middlesex, NEW JERSEY

August 28, 2024 at 6:35 PM

637-813-7068 was logged as a live voice. Violation date: August 26, 2024 at 6:37 PM.

FTC report from Arvada, COLORADO

August 12, 2024 at 8:11 PM

This report was logged as a robocall. Category: Dropped call or no message. Violation date: August 12, 2024 at 4:18 PM.

FTC report from ALABAMA

August 2, 2024 at 4:30 PM

This report was logged as a unwanted call. Category: Dropped call or no message. Violation date: August 2, 2024 at 1:16 PM.

FTC report from Dubois, PENNSYLVANIA

June 12, 2024 at 4:05 PM

637-439-5587 was logged as a live voice. Category: Medical & prescriptions. Violation date: June 12, 2024 at 4:00 PM.

FTC report from Dubois, PENNSYLVANIA

June 12, 2024 at 4:03 PM

637-439-5551 was logged as a live voice. Category: Medical & prescriptions. Violation date: June 12, 2024 at 1:30 PM.

FTC report from Saint Ann, MISSOURI

June 7, 2024 at 9:35 PM

637-793-9605 was logged as a live voice. Category: Dropped call or no message. Violation date: June 6, 2024 at 8:19 AM.

FTC report from NEW JERSEY

May 17, 2024 at 1:09 PM

637-646-6294 was logged as a live voice. Violation date: May 17, 2024 at 1:04 PM.

FTC report from Tiffin, OHIO

May 16, 2024 at 10:54 AM

This report was logged as a robocall. Violation date: May 8, 2024 at 2:53 PM.

FTC report from WEST VIRGINIA

May 2, 2024 at 12:46 PM

637-798-7613 was logged as a live voice. Category: No Subject Provided. Violation date: May 2, 2024 at 10:00 AM.

FTC report from High Ridge, MISSOURI

February 26, 2024 at 12:00 PM

637-210-4507 was logged as a live voice. Category: Home improvement & cleaning. Violation date: February 26, 2024 at 10:38 AM.

FTC report from Hinton, WEST VIRGINIA

November 17, 2023 at 12:09 PM

This report was logged as a unwanted call. Violation date: November 16, 2023 at 12:50 PM.

FTC report from Swartz Creek, MICHIGAN

November 15, 2023 at 3:37 PM

637-530-5324 was logged as a live voice. Category: Calls pretending to be government, businesses, or family and friends. Violation date: November 15, 2023 at 12:00 AM.

FTC report from Fort Wayne, INDIANA

November 2, 2023 at 10:21 AM

This report was logged as a robocall. Category: Dropped call or no message. Violation date: October 30, 2023 at 5:00 PM.

FTC report from Powell, TENNESSEE

August 25, 2023 at 4:25 PM

This report was logged as a live voice. Violation date: August 15, 2023 at 7:06 PM.

FTC report from Shoreham, NEW YORK

May 24, 2023 at 4:40 PM

637-930-0693 was logged as a robocall. Category: Medical & prescriptions. Violation date: May 24, 2023 at 4:38 PM.

FTC report from East Islip, NEW YORK

April 29, 2023 at 8:24 AM

637-270-0677 was logged as a live voice. Category: Medical & prescriptions. Violation date: April 28, 2023 at 7:01 PM.

FTC report from Marion, ILLINOIS

April 6, 2023 at 12:25 PM

637-352-0589 was logged as a live voice. Violation date: April 6, 2023 at 11:01 AM.

FTC report from Dayton, OHIO

March 21, 2023 at 8:53 AM

637-841-6833 was logged as a live voice. Violation date: March 16, 2023 at 5:00 PM.

FTC report from CALIFORNIA

December 22, 2022 at 8:17 PM

637-298-5462 was logged as a robocall. Violation date: December 16, 2022 at 12:00 AM.

FTC report from TENNESSEE

November 18, 2022 at 5:13 PM

637-263-3893 was logged as a robocall. Violation date: November 18, 2022 at 4:02 PM.

FTC report from Santa Ana, CALIFORNIA

July 18, 2022 at 6:51 PM

637-439-4175 was logged as a robocall. Category: Calls pretending to be government, businesses, or family and friends. Violation date: June 30, 2022 at 1:43 PM.

FTC report from MICHIGAN

July 1, 2022 at 11:37 AM

This report was logged as a robocall. Category: Warranties & protection plans. Violation date: June 30, 2022 at 12:13 PM.

FCC report from Wentzville, MO

March 23, 2022 at 6:50 PM

637-271-4748 was logged as a text message. Unwanted Calls. Contact method: Internet (VOIP).