Area Code Detail

Area Code 521

personal communications services ยท In service since September 21, 2017

NANP AREA
Reports, 30 Days 18

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

Reports, 180 Days 32

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

personal communications services

Recent Signals

Latest complaint activity tied to 521

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

FTC report from ARIZONA

August 18, 2026 at 4:35 PM

521-292-9192 was logged as a robocall. Violation date: August 17, 2026 at 2:09 PM.

FTC report from Lake Worth, FLORIDA

August 7, 2026 at 9:23 AM

521-988-8438 was logged as a robocall. Violation date: August 7, 2026 at 9:13 AM.

FTC report from FLORIDA

July 29, 2026 at 5:14 PM

521-610-0123 was logged as a robocall. Category: Calls pretending to be government, businesses, or family and friends. Violation date: July 29, 2026 at 5:03 PM.

FTC report from FLORIDA

July 29, 2026 at 5:14 PM

521-610-0123 was logged as a robocall. Category: Calls pretending to be government, businesses, or family and friends. Violation date: July 29, 2026 at 5:03 PM.

FTC report from FLORIDA

July 29, 2026 at 5:13 PM

521-610-0123 was logged as a robocall. Category: Calls pretending to be government, businesses, or family and friends. Violation date: July 29, 2026 at 5:03 PM.

FTC report from FLORIDA

July 29, 2026 at 5:12 PM

521-610-0123 was logged as a robocall. Category: Calls pretending to be government, businesses, or family and friends. Violation date: July 29, 2026 at 5:03 PM.

FTC report from FLORIDA

July 29, 2026 at 5:12 PM

521-610-0123 was logged as a robocall. Category: Calls pretending to be government, businesses, or family and friends. Violation date: July 29, 2026 at 5:03 PM.

FTC report from FLORIDA

July 29, 2026 at 5:11 PM

521-610-0123 was logged as a robocall. Category: Calls pretending to be government, businesses, or family and friends. Violation date: July 29, 2026 at 5:03 PM.

FTC report from FLORIDA

July 29, 2026 at 5:11 PM

521-610-0123 was logged as a robocall. Category: Calls pretending to be government, businesses, or family and friends. Violation date: July 29, 2026 at 5:03 PM.

FTC report from FLORIDA

July 29, 2026 at 5:10 PM

521-610-0123 was logged as a robocall. Category: Calls pretending to be government, businesses, or family and friends. Violation date: July 29, 2026 at 5:03 PM.

FTC report from FLORIDA

July 29, 2026 at 5:09 PM

521-610-0123 was logged as a robocall. Category: Calls pretending to be government, businesses, or family and friends. Violation date: July 29, 2026 at 5:03 PM.

FTC report from FLORIDA

July 29, 2026 at 5:09 PM

521-610-0123 was logged as a robocall. Category: Calls pretending to be government, businesses, or family and friends. Violation date: July 29, 2026 at 5:03 PM.

FTC report from FLORIDA

July 29, 2026 at 5:08 PM

521-610-0123 was logged as a robocall. Category: Calls pretending to be government, businesses, or family and friends. Violation date: July 29, 2026 at 5:03 PM.

FTC report from FLORIDA

July 29, 2026 at 5:08 PM

521-610-0123 was logged as a robocall. Category: Calls pretending to be government, businesses, or family and friends. Violation date: July 29, 2026 at 5:03 PM.

FTC report from FLORIDA

July 29, 2026 at 5:07 PM

521-610-0123 was logged as a robocall. Category: Calls pretending to be government, businesses, or family and friends. Violation date: July 29, 2026 at 5:03 PM.

FTC report from FLORIDA

July 29, 2026 at 5:06 PM

521-610-0123 was logged as a robocall. Category: Calls pretending to be government, businesses, or family and friends. Violation date: July 29, 2026 at 5:03 PM.

FTC report from FLORIDA

July 29, 2026 at 5:06 PM

521-610-0123 was logged as a robocall. Category: Calls pretending to be government, businesses, or family and friends. Violation date: July 29, 2026 at 5:03 PM.

FTC report from FLORIDA

July 29, 2026 at 5:05 PM

521-610-0123 was logged as a robocall. Category: Calls pretending to be government, businesses, or family and friends. Violation date: July 29, 2026 at 5:03 PM.

FTC report from NEW YORK

July 13, 2026 at 10:48 PM

This report was logged as a live voice. Violation date: July 13, 2026 at 5:54 PM.

FTC report from Austin, TEXAS

June 10, 2026 at 3:20 PM

521-460-5919 was logged as a robocall. Violation date: June 10, 2026 at 2:17 PM.

FTC report from CALIFORNIA

May 29, 2026 at 1:56 PM

This report was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: May 22, 2026 at 10:48 AM.

FTC report from Braselton, GEORGIA

May 27, 2026 at 2:28 PM

521-531-4502 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: May 27, 2026 at 11:24 AM.

FTC report from Campbell, CALIFORNIA

May 26, 2026 at 12:18 PM

This report was logged as a robocall. Category: Dropped call or no message. Violation date: May 20, 2026 at 4:58 PM.

FTC report from FLORIDA

May 17, 2026 at 12:36 PM

521-531-3624 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: May 15, 2026 at 12:28 PM.

FTC report from Alabama, ALABAMA

May 8, 2026 at 6:20 PM

This report was logged as a live voice. Violation date: May 8, 2026 at 4:15 PM.

FTC report from Cloverdale, VIRGINIA

May 6, 2026 at 2:46 PM

521-427-7363 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: May 5, 2026 at 6:13 PM.

FTC report from St. Petersburg, FLORIDA

May 3, 2026 at 4:53 PM

521-269-3870 was logged as a unwanted call. Violation date: May 2, 2026 at 3:46 PM.

FTC report from Pleasant Hilll, CALIFORNIA

March 16, 2026 at 9:00 PM

This report was logged as a robocall. Category: Lotteries, prizes & sweepstakes. Violation date: March 16, 2026 at 12:53 PM.

FTC report from LOUISIANA

March 12, 2026 at 11:57 AM

521-667-2650 was logged as a robocall. Category: Dropped call or no message. Violation date: March 12, 2026 at 10:53 AM.

FTC report from Frederick, MARYLAND

March 5, 2026 at 9:09 AM

521-302-8244 was logged as a robocall. Violation date: March 4, 2026 at 1:02 PM.

FTC report from Frederick, MARYLAND

March 5, 2026 at 9:08 AM

521-302-8244 was logged as a robocall. Violation date: March 4, 2026 at 1:01 PM.

FTC report from Frederick, MARYLAND

March 5, 2026 at 9:08 AM

521-302-8244 was logged as a robocall. Violation date: March 4, 2026 at 1:01 PM.

FTC report from Pflugerville, TEXAS

January 5, 2026 at 11:35 AM

521-483-0691 was logged as a robocall. Violation date: January 3, 2026 at 4:55 PM.

FTC report from Wexford, PENNSYLVANIA

December 6, 2025 at 11:58 AM

This report was logged as a live voice. Category: Dropped call or no message. Violation date: December 5, 2025 at 3:15 PM.

FTC report from VIRGINIA

November 29, 2025 at 11:43 AM

521-371-3531 was logged as a robocall. Category: Dropped call or no message. Violation date: November 28, 2025 at 11:54 AM.

FTC report from Urbandale, IOWA

November 25, 2025 at 5:20 PM

This report was logged as a live voice. Violation date: November 24, 2025 at 1:11 PM.

FTC report from Jacksonville, NORTH CAROLINA

November 15, 2025 at 3:07 PM

521-476-9304 was logged as a unwanted call. Violation date: November 15, 2025 at 2:00 PM.

FTC report

September 22, 2025 at 3:22 AM

This report was logged as a robocall. Violation date: September 21, 2025 at 12:00 PM.

FTC report

September 22, 2025 at 3:22 AM

This report was logged as a robocall. Violation date: September 21, 2025 at 12:00 PM.

FTC report

September 22, 2025 at 3:21 AM

This report was logged as a robocall. Violation date: September 21, 2025 at 12:00 PM.