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Area Code Detail

Area Code 621

Texas (Houston). Approved to overlay 281, 346, 713, and 832 · In service since January 3, 2025[13]

TX
Reports, 30 Days 3

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

Reports, 180 Days 8

Broader complaint volume used to prioritize indexable pages.

Active Prefixes 14

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

Carriers / Assignees 1

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

What this area code covers

Texas (Houston). Approved to overlay 281, 346, 713, and 832

Top carriers and assignees

  • MULTIPLE OCN LISTING · 14 routing rows
NPA-NXX

Prefix directory inside area code 621

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
621-211-XXXX XXXXXXXXXX TX
621-311-XXXX XXXXXXXXXX TX
621-411-XXXX XXXXXXXXXX TX
621-511-XXXX XXXXXXXXXX TX
621-555-XXXX DIR ASST TX
621-611-XXXX XXXXXXXXXX TX
621-700-XXXX XXXXXXXXXX TX
621-711-XXXX XXXXXXXXXX TX
621-811-XXXX XXXXXXXXXX TX
621-911-XXXX XXXXXXXXXX TX
621-950-XXXX XXXXXXXXXX TX
621-958-XXXX XXXXXXXXXX TX
621-959-XXXX XXXXXXXXXX TX
621-976-XXXX XXXXXXXXXX TX
Recent Signals

Latest complaint activity tied to 621

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

FTC report from GEORGIA

May 21, 2026 at 7:06 PM

621-315-4509 was logged as a robocall. Violation date: May 1, 2026 at 9:29 AM.

FTC report from Boise, CALIFORNIA

May 9, 2026 at 1:39 PM

621-202-5491 was logged as a robocall. Violation date: May 5, 2026 at 5:31 PM.

FTC report from Point Pleasant, NEW JERSEY

April 25, 2026 at 2:03 PM

621-350-3326 was logged as a robocall. Violation date: April 24, 2026 at 1:06 PM.

FTC report from CALIFORNIA

March 24, 2026 at 7:53 PM

621-973-9780 was logged as a robocall. Violation date: March 24, 2026 at 3:49 PM.

FTC report from Johnstown, PENNSYLVANIA

March 21, 2026 at 12:49 AM

621-528-3657 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: March 20, 2026 at 1:13 PM.

FTC report from Akron, OHIO

February 11, 2026 at 12:24 PM

This report was logged as a robocall. Violation date: February 3, 2026 at 9:36 AM.

FTC report from Culver City, CALIFORNIA

February 5, 2026 at 8:27 PM

621-681-1735 was logged as a robocall. Violation date: February 5, 2026 at 12:44 PM.

FTC report from TENNESSEE

December 28, 2025 at 1:10 PM

621-806-0561 was logged as a robocall. Violation date: November 6, 2025 at 11:28 AM.

FTC report from Harshaw, WISCONSIN

September 25, 2025 at 9:35 AM

621-762-0126 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: September 23, 2025 at 5:40 PM.

FTC report from Douglasville, GEORGIA

September 17, 2025 at 2:24 PM

621-222-9699 was logged as a live voice. Violation date: September 17, 2025 at 11:22 AM.

FTC report from Douglasville, GEORGIA

September 17, 2025 at 2:19 PM

621-222-9699 was logged as a live voice. Violation date: September 17, 2025 at 11:22 AM.

FTC report from NORTH CAROLINA

September 15, 2025 at 1:56 PM

621-000-8646 was logged as a live voice. Category: No Subject Provided. Violation date: August 14, 2025 at 9:00 AM.

FTC report from NORTH CAROLINA

September 15, 2025 at 1:55 PM

621-000-7624 was logged as a live voice. Category: No Subject Provided. Violation date: August 14, 2025 at 9:00 AM.

FTC report from NORTH CAROLINA

September 15, 2025 at 1:54 PM

621-000-7328 was logged as a live voice. Category: No Subject Provided. Violation date: August 14, 2025 at 9:00 AM.

FTC report from NORTH CAROLINA

September 15, 2025 at 1:54 PM

621-000-7192 was logged as a live voice. Category: No Subject Provided. Violation date: August 14, 2025 at 9:00 AM.

FTC report from NORTH CAROLINA

September 15, 2025 at 1:53 PM

621-000-5539 was logged as a live voice. Category: No Subject Provided. Violation date: August 14, 2025 at 9:00 AM.

FTC report from NORTH CAROLINA

September 15, 2025 at 1:53 PM

621-000-4573 was logged as a live voice. Category: No Subject Provided. Violation date: August 14, 2025 at 9:00 AM.

FTC report from NORTH CAROLINA

September 15, 2025 at 1:52 PM

621-000-3146 was logged as a live voice. Category: No Subject Provided. Violation date: August 14, 2025 at 9:00 AM.

FTC report from NORTH CAROLINA

September 15, 2025 at 1:51 PM

621-000-3017 was logged as a live voice. Category: No Subject Provided. Violation date: August 14, 2025 at 9:00 AM.

FTC report from NORTH CAROLINA

September 15, 2025 at 1:51 PM

621-000-1758 was logged as a live voice. Category: No Subject Provided. Violation date: August 14, 2025 at 9:00 AM.

FTC report from Makawao, HAWAII

September 3, 2025 at 10:09 PM

This report was logged as a robocall. Category: No Subject Provided. Violation date: September 3, 2025 at 11:15 AM.

FTC report from East Northport, NEW YORK

July 1, 2025 at 11:44 AM

621-382-0890 was logged as a live voice. Category: Home improvement & cleaning. Violation date: June 30, 2025 at 12:05 PM.

FTC report from NEW YORK

June 26, 2025 at 4:50 PM

621-318-3616 was logged as a robocall. Violation date: June 25, 2025 at 4:48 PM.

FTC report from Reno, NEVADA

June 21, 2025 at 9:46 PM

This report was logged as a unwanted call. Category: Dropped call or no message. Violation date: June 21, 2025 at 5:22 PM.

FTC report from Eau Claire, WISCONSIN

May 9, 2025 at 6:02 PM

This report was logged as a robocall. Category: Dropped call or no message. Violation date: May 9, 2025 at 4:58 PM.

FTC report from INDIANA

March 6, 2025 at 7:24 PM

This report was logged as a robocall. Violation date: March 6, 2025 at 5:39 PM.

FTC report from CALIFORNIA

February 28, 2025 at 4:50 PM

621-717-0715 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: February 27, 2025 at 3:56 PM.

FTC report from INDIANA

February 27, 2025 at 7:31 PM

This report was logged as a robocall. Violation date: February 27, 2025 at 5:35 PM.

FTC report from TENNESSEE

February 7, 2025 at 11:13 AM

This report was logged as a live voice. Category: Calls pretending to be government, businesses, or family and friends. Violation date: February 7, 2025 at 9:10 AM.

FTC report from Dix Hills, NEW YORK

January 29, 2025 at 5:15 PM

621-213-7139 was logged as a robocall. Category: Medical & prescriptions. Violation date: January 29, 2025 at 2:07 PM.

FTC report from TEXAS

January 22, 2025 at 9:41 PM

621-772-9722 was logged as a robocall. Category: No Subject Provided. Violation date: January 1, 2025 at 12:00 AM.

FTC report from Mesa, ARIZONA

January 14, 2025 at 1:35 PM

This report was logged as a live voice. Violation date: January 7, 2025 at 7:09 AM.

FTC report from Riverview, FLORIDA

January 8, 2025 at 10:48 AM

621-240-1895 was logged as a robocall. Category: No Subject Provided. Violation date: January 8, 2025 at 10:44 AM.

FTC report from TENNESSEE

October 29, 2024 at 11:59 AM

This report was logged as a unwanted call. Violation date: October 29, 2024 at 9:41 AM.

FTC report from Grand Terrace, CALIFORNIA

August 9, 2024 at 2:11 PM

This report was logged as a live voice. Violation date: August 8, 2024 at 9:55 AM.

FTC report from Mckeers Rocks, PENNSYLVANIA

August 9, 2024 at 11:27 AM

621-435-9439 was logged as a robocall. Category: Medical & prescriptions. Violation date: July 25, 2024 at 12:37 PM.

FTC report from East Islip, NEW YORK

July 29, 2024 at 2:49 PM

621-277-0608 was logged as a robocall. Violation date: July 29, 2024 at 12:00 AM.

FTC report from East Islip, NEW YORK

June 21, 2024 at 7:54 PM

This report was logged as a robocall. Category: Dropped call or no message. Violation date: June 14, 2024 at 4:00 PM.

FTC report from San Diego, CALIFORNIA

May 27, 2024 at 6:08 PM

This report was logged as a robocall. Violation date: May 27, 2024 at 3:01 PM.

FTC report from Sant Boi, TEXAS

February 23, 2024 at 5:46 AM

This report was logged as a robocall. Violation date: February 23, 2024 at 11:15 AM.