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Area Code Detail

Area Code 166

North American numbering plan area

Reports, 30 Days 1

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

Reports, 180 Days 13

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 166

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 Iberia, LOUISIANA

April 23, 2026 at 2:01 PM

166-874-3303 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: April 23, 2026 at 12:57 PM.

FTC report from Easley, SOUTH CAROLINA

March 19, 2026 at 12:56 PM

This report was logged as a live voice. Violation date: March 19, 2026 at 11:45 AM.

FTC report from Fresno, CALIFORNIA

March 14, 2026 at 1:24 PM

166-899-7303 was logged as a unwanted call. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: March 13, 2026 at 4:52 PM.

FTC report from Columbiana, ALABAMA

March 10, 2026 at 11:17 AM

This report was logged as a live voice. Violation date: March 10, 2026 at 10:10 AM.

FTC report from PENNSYLVANIA

February 18, 2026 at 5:40 PM

166-498-4803 was logged as a live voice. Violation date: February 18, 2026 at 12:00 AM.

FTC report from Bakersfield, CALIFORNIA

February 9, 2026 at 7:00 PM

This report was logged as a robocall. Violation date: February 9, 2026 at 12:00 AM.

FTC report from Coram, NEW YORK

January 19, 2026 at 3:13 PM

This report was logged as a robocall. Category: Lotteries, prizes & sweepstakes. Violation date: January 19, 2026 at 11:10 AM.

FTC report from MISSISSIPPI

January 10, 2026 at 11:14 AM

This report was logged as a robocall. Violation date: January 7, 2026 at 4:16 PM.

FTC report from Fernley, NEVADA

December 24, 2025 at 1:05 PM

This report was logged as a live voice. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: December 24, 2025 at 10:00 AM.

FTC report from Palmetto, FLORIDA

December 19, 2025 at 3:47 PM

166-398-6465 was logged as a robocall. Violation date: December 19, 2025 at 3:43 PM.

FTC report from El Paso, TEXAS

December 6, 2025 at 8:04 PM

166-223-2901 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: December 6, 2025 at 2:47 AM.

FTC report from MISSISSIPPI

December 6, 2025 at 8:03 PM

166-223-2901 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: December 6, 2025 at 2:47 AM.

FTC report from Odenton, MARYLAND

November 26, 2025 at 10:00 AM

166-735-4036 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: November 26, 2025 at 12:00 AM.

FTC report from Florissant Mo, MISSOURI

September 10, 2025 at 10:24 AM

166-025-6800 was logged as a robocall. Category: Calls pretending to be government, businesses, or family and friends. Violation date: September 10, 2025 at 8:35 AM.

FTC report from Waianae, HAWAII

August 28, 2025 at 3:45 PM

166-270-6896 was logged as a live voice. Category: Calls pretending to be government, businesses, or family and friends. Violation date: August 28, 2025 at 12:00 PM.

FTC report from Lourdes, OREGON

August 10, 2025 at 2:05 PM

This report was logged as a robocall. Category: Dropped call or no message. Violation date: August 10, 2025 at 10:15 AM.

FTC report from Ripley, MISSISSIPPI

June 28, 2025 at 9:10 PM

166-277-8873 was logged as a robocall. Violation date: May 25, 2025 at 4:26 PM.

FTC report from Water Valley, MISSISSIPPI

June 27, 2025 at 2:47 PM

This report was logged as a robocall. Category: Medical & prescriptions. Violation date: June 27, 2025 at 1:11 PM.

FTC report from Aliquippa, PENNSYLVANIA

May 28, 2025 at 6:06 PM

166-220-2015 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: May 27, 2025 at 2:13 AM.

FTC report from Missouri, MISSOURI

May 1, 2025 at 10:24 AM

This report was logged as a live voice. Category: Calls pretending to be government, businesses, or family and friends. Violation date: May 1, 2025 at 9:15 AM.

FTC report from Sierra Vista, ARIZONA

April 30, 2025 at 8:44 PM

166-250-0320 was logged as a live voice. Category: Dropped call or no message. Violation date: April 30, 2025 at 7:24 AM.

FTC report from Moscow Mills, MISSOURI

April 18, 2025 at 12:12 PM

This report was logged as a live voice. Violation date: April 18, 2025 at 11:04 AM.

FTC report from LOUISIANA

April 1, 2025 at 5:41 PM

This report was logged as a unwanted call. Violation date: April 1, 2025 at 9:05 AM.

FTC report from Sioux Falls, SOUTH DAKOTA

March 8, 2025 at 11:49 PM

166-237-2322 was logged as a robocall. Violation date: March 7, 2025 at 2:58 PM.

FTC report from Moravia, NEW YORK

March 5, 2025 at 2:24 PM

This report was logged as a live voice. Category: Lotteries, prizes & sweepstakes. Violation date: March 5, 2025 at 9:28 AM.

FTC report from Bakersfield, CALIFORNIA

February 18, 2025 at 2:53 PM

This report was logged as a live voice. Violation date: February 18, 2025 at 2:18 PM.

FTC report from Punta Gorda, FLORIDA

February 17, 2025 at 8:27 PM

This report was logged as a live voice. Violation date: February 17, 2025 at 12:00 AM.

FTC report from Maumelle, ARKANSAS

January 29, 2025 at 4:05 PM

This report was logged as a live voice. Violation date: January 29, 2025 at 1:47 PM.

FTC report from MINNESOTA

January 29, 2025 at 1:47 PM

166-486-0989 was logged as a robocall. Violation date: January 29, 2025 at 10:57 AM.

FTC report from Ventura, CALIFORNIA

January 3, 2025 at 6:06 PM

This report was logged as a robocall. Category: Calls pretending to be government, businesses, or family and friends. Violation date: January 3, 2025 at 11:23 AM.

FTC report from CALIFORNIA

December 19, 2024 at 7:38 PM

166-145-5193 was logged as a robocall. Violation date: December 19, 2024 at 4:36 PM.

FTC report from CALIFORNIA

December 19, 2024 at 2:26 PM

166-145-5177 was logged as a robocall. Violation date: December 16, 2024 at 10:30 AM.

FTC report from Valrico, FLORIDA

December 12, 2024 at 3:58 PM

This report was logged as a robocall. Violation date: December 12, 2024 at 12:00 PM.

FTC report from San Diego, CALIFORNIA

November 19, 2024 at 2:37 PM

166-410-6274 was logged as a robocall. Category: Calls pretending to be government, businesses, or family and friends. Violation date: November 19, 2024 at 11:32 AM.

FTC report from Statham, GEORGIA

July 31, 2024 at 10:11 AM

This report was logged as a live voice. Violation date: July 30, 2024 at 12:37 PM.

FTC report from Drummonds, TENNESSEE

June 28, 2024 at 1:45 PM

166-208-7934 was logged as a live voice. Category: Medical & prescriptions. Violation date: June 28, 2024 at 12:00 AM.

FTC report from MISSISSIPPI

May 22, 2024 at 5:31 PM

This report was logged as a robocall. Violation date: May 13, 2024 at 9:55 AM.

FTC report from MISSISSIPPI

May 22, 2024 at 5:26 PM

This report was logged as a robocall. Category: Dropped call or no message. Violation date: May 10, 2024 at 3:24 PM.

FTC report from CALIFORNIA

April 17, 2024 at 1:40 PM

166-967-6791 was logged as a robocall. Category: Calls pretending to be government, businesses, or family and friends. Violation date: April 17, 2024 at 8:06 AM.

FTC report from Lacey, WASHINGTON

February 8, 2024 at 12:03 PM

This report was logged as a robocall. Violation date: February 6, 2024 at 9:14 AM.