Area Code Detail

Area Code 399

North American numbering plan area

Reports, 30 Days 1

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

Reports, 180 Days 3

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

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Overview

What this area code covers

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

Recent Signals

Latest complaint activity tied to 399

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

FTC report from INDIANA

August 4, 2026 at 1:59 PM

This report was logged as a live voice. Category: Dropped call or no message. Violation date: August 3, 2026 at 11:00 AM.

FTC report from Aurora, COLORADO

June 15, 2026 at 3:37 PM

This report was logged as a robocall. Category: Computer & technical support. Violation date: June 15, 2026 at 1:30 PM.

FTC report from Warren, RHODE ISLAND

April 6, 2026 at 5:10 PM

399-204-1664 was logged as a live voice. Category: Calls pretending to be government, businesses, or family and friends. Violation date: April 6, 2026 at 5:05 PM.

FTC report from Colorado Springs, COLORADO

January 14, 2026 at 9:17 PM

This report was logged as a live voice. Category: Dropped call or no message. Violation date: January 14, 2026 at 8:15 AM.

FTC report from Akron, OHIO

December 16, 2025 at 10:45 AM

This report was logged as a robocall. Violation date: December 5, 2025 at 3:40 PM.

FTC report from Akron, OHIO

December 3, 2025 at 10:52 AM

This report was logged as a robocall. Violation date: November 12, 2025 at 9:26 AM.

FTC report from Bay, ARKANSAS

September 24, 2025 at 3:19 AM

This report was logged as a live voice. Violation date: September 19, 2025 at 12:00 PM.

FTC report from Loveland, OHIO

September 22, 2025 at 3:16 PM

This report was logged as a live voice. Category: Medical & prescriptions. Violation date: September 22, 2025 at 2:22 PM.

FTC report from Chicago, ILLINOIS

September 17, 2025 at 2:03 PM

399-226-9966 was logged as a live voice. Category: Dropped call or no message. Violation date: September 17, 2025 at 11:02 AM.

FTC report from ALASKA

August 25, 2025 at 3:44 PM

399-216-1159 was logged as a unwanted call. Category: No Subject Provided. Violation date: August 25, 2025 at 8:14 AM.

FTC report from Miami, FLORIDA

July 25, 2025 at 4:33 PM

399-777-4207 was logged as a live voice. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: July 25, 2025 at 4:30 PM.

FTC report from Bells, TENNESSEE

June 27, 2025 at 3:28 PM

399-777-0086 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: June 2, 2025 at 12:00 AM.

FTC report from Chicago, ILLINOIS

May 19, 2025 at 12:39 PM

399-788-5644 was logged as a robocall. Category: Dropped call or no message. Violation date: May 19, 2025 at 7:05 AM.

FTC report from Fayetteville, GEORGIA

April 24, 2025 at 2:57 PM

399-777-8222 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: April 19, 2025 at 11:25 AM.

FTC report from FLORIDA

April 15, 2025 at 5:46 PM

This report was logged as a live voice. Violation date: April 15, 2025 at 4:38 PM.

FTC report from Geneseo, ILLINOIS

March 4, 2025 at 4:04 PM

399-468-4000 was logged as a robocall. Category: Medical & prescriptions. Violation date: March 4, 2025 at 11:11 AM.

FTC report from Waterford, MICHIGAN

March 3, 2025 at 10:39 AM

399-233-5764 was logged as a robocall. Category: Calls pretending to be government, businesses, or family and friends. Violation date: March 3, 2025 at 10:34 AM.

FTC report from Wexford, PENNSYLVANIA

February 22, 2025 at 11:24 AM

This report was logged as a live voice. Violation date: February 22, 2025 at 10:45 AM.

FTC report from Germantown, WISCONSIN

January 23, 2025 at 6:36 PM

This report was logged as a unwanted call. Category: Dropped call or no message. Violation date: January 23, 2025 at 3:18 PM.

FTC report from Tarboro, NORTH CAROLINA

January 8, 2025 at 3:38 PM

399-219-2935 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: January 8, 2025 at 3:33 AM.

FCC report from Renton, WA

December 30, 2024 at 10:30 PM

399-675-0757 was logged as a live voice. Category: Other Services. Unwanted Calls. Contact method: Wireless (cell phone/other mobile device).

FTC report from Pensacola, FLORIDA

November 14, 2024 at 10:43 AM

This report was logged as a live voice. Category: Lotteries, prizes & sweepstakes. Violation date: November 14, 2024 at 9:34 AM.

FTC report from Saratoga Springs, UTAH

October 21, 2024 at 4:17 PM

399-675-3087 was logged as a robocall. Category: Calls pretending to be government, businesses, or family and friends. Violation date: October 21, 2024 at 2:08 PM.

FTC report from Valley, ALABAMA

September 9, 2024 at 12:33 PM

399-232-8052 was logged as a robocall. Violation date: September 9, 2024 at 12:22 PM.

FTC report from MARYLAND

September 4, 2024 at 4:55 PM

399-233-2812 was logged as a live voice. Violation date: September 4, 2024 at 4:58 PM.

FTC report from Erie, PENNSYLVANIA

September 4, 2024 at 1:41 PM

This report was logged as a live voice. Violation date: September 4, 2024 at 12:50 PM.

FTC report from NEW HAMPSHIRE

August 23, 2024 at 12:00 PM

399-300-3462 was logged as a robocall. Category: Charities. Violation date: August 23, 2024 at 11:46 AM.

FTC report from MASSACHUSETTS

August 9, 2024 at 3:47 PM

399-333-8842 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: August 8, 2024 at 8:36 PM.

FTC report from Montrose, COLORADO

August 2, 2024 at 2:05 PM

This report was logged as a live voice. Violation date: August 2, 2024 at 11:11 AM.

FTC report from Los Osos, CALIFORNIA

July 19, 2024 at 5:13 PM

399-233-8325 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: July 19, 2024 at 2:04 PM.

FTC report from Boston, MASSACHUSETTS

June 21, 2024 at 9:24 AM

399-400-4036 was logged as a live voice. Category: Calls pretending to be government, businesses, or family and friends. Violation date: June 21, 2024 at 9:15 AM.

FTC report from OREGON

June 5, 2024 at 1:29 PM

This report was logged as a unwanted call. Category: No Subject Provided. Violation date: June 5, 2024 at 8:09 AM.

FTC report from Montrose, COLORADO

April 16, 2024 at 12:55 PM

This report was logged as a robocall. Violation date: April 16, 2024 at 10:49 AM.

FCC report from Falls Church, VA

February 27, 2024 at 6:10 PM

399-210-5491 was logged as a text message. Category: Political Services. Unwanted Calls. Contact method: Wireless (cell phone/other mobile device).

FTC report from Madison, INDIANA

February 15, 2024 at 10:03 AM

399-240-6557 was logged as a robocall. Violation date: February 15, 2024 at 9:56 AM.

FTC report from WYOMING

December 8, 2023 at 2:53 PM

399-500-1416 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: December 8, 2023 at 12:50 PM.

FTC report from PENNSYLVANIA

September 13, 2023 at 10:56 AM

399-499-7640 was logged as a robocall. Violation date: September 13, 2023 at 10:49 AM.

FTC report from Montrose, COLORADO

August 21, 2023 at 1:09 PM

This report was logged as a robocall. Violation date: August 19, 2023 at 12:29 PM.

FTC report from Fort Wayne, INDIANA

August 15, 2023 at 5:35 PM

This report was logged as a robocall. Violation date: August 15, 2023 at 5:33 PM.

FTC report from Greenville, RHODE ISLAND

June 26, 2023 at 12:24 PM

This report was logged as a robocall. Category: Dropped call or no message. Violation date: June 19, 2023 at 9:00 AM.