303-406

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Phone LookupTop ComplaintsArea CodesNPA-NXXiMessage
Raw Number303406
Basic Format303-406
NPA (Area Code)303
NXX406

Call Routing Data

NPA-NXX-XOCNCompanyRate CenterUse TypeAssign DateCityStateRegionBlock Effective Date
303-406-0XXX6567CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CODENVERAS04/19/2022DENVERCOWE05/19/2022
303-406-1XXX6010NEW CINGULAR WIRELESS PCS, LLCDENVERAS09/20/2007DENVERCOWE10/20/2007
303-406-2XXX6118LEVEL 3 COMMUNICATIONS, LLC - CODENVERRTDENVERCOWE
303-406-3XXX6529T-MOBILE USA, INC.DENVERAS06/08/2006DENVERCOWE07/08/2006
303-406-4XXX6118LEVEL 3 COMMUNICATIONS, LLC - CODENVERRTDENVERCOWE
303-406-5XXX6118LEVEL 3 COMMUNICATIONS, LLC - CODENVERRTDENVERCOWE
303-406-6XXX624HONVOY SPECTRUM, LLCDENVERAS04/19/2022DENVERCOWE05/13/2022
303-406-7XXX6118LEVEL 3 COMMUNICATIONS, LLC - CODENVERRTDENVERCOWE
303-406-8XXX6010NEW CINGULAR WIRELESS PCS, LLCDENVERAS05/09/2006DENVERCOWE06/08/2006
303-406-9XXX6118LEVEL 3 COMMUNICATIONS, LLC - CODENVERRTDENVERCOWE
303-406-XXXX6118LEVEL 3 COMMUNICATIONS, LLC - CODENVERASDENVERCO

Business/Government Phones on the 303-406 Prefix

PhoneNameAddress
303-406-8522The Dent Solution
303-406-2090Action Behavior Centers - ABA Therapy for Autism6040 South Gun Club Road Aurora 80016 US
303-406-9440Action Behavior Centers - ABA Therapy for Autism4665 Paris Street Denver 80239 US
303-406-9556Action Behavior Centers - ABA Therapy for Autism255 South Routt Way Lakewood 80228 US
303-406-9908Action Behavior Centers - ABA Therapy for Autism6825 Silver Ponds Heights Colorado Springs 80908 US

Reports

Anonymous User from , CO

July 27, 2026 at 12:48 PM

303-406-5364 reported as a unwanted call. Received on July 27, 2026 at 10:47 AM.

Anonymous User from Longmont, Colorado

July 7, 2026 at 12:40 PM

303-406-4816 reported as a Robocall. Received on July 7, 2026 at 10:20 AM.

Anonymous User from Wheat Ridge, Colorado

June 3, 2026 at 6:01 PM

303-406-7630 reported as a Live Voice or Other. Received on June 3, 2026 at 3:58 PM.
Call for Medical & prescriptions

Anonymous User from Longmont, Colorado

May 21, 2026 at 5:51 PM

303-406-7402 reported as a Robocall. Received on May 21, 2026 at 3:01 PM.
Call for Medical & prescriptions

Anonymous User from Longmont, Colorado

May 20, 2026 at 6:01 PM

303-406-4778 reported as a Robocall. Received on May 20, 2026 at 3:52 PM.

Anonymous User from Boulder, Colorado

May 13, 2026 at 7:19 PM

303-406-5944 reported as a Robocall. Received on May 13, 2026 at 11:34 AM.
Call for Home improvement & cleaning

Anonymous User from Longmont, Colorado

April 21, 2026 at 12:49 PM

303-406-5326 reported as a Robocall. Received on April 21, 2026 at 10:39 AM.
Call for Medical & prescriptions

Anonymous User from Frederick, Colorado

April 1, 2026 at 5:24 PM

303-406-7670 reported as a unwanted call. Received on April 1, 2026 at 2:01 PM.

Anonymous User from , WI

February 11, 2026 at 3:15 PM

303-406-2748 reported as a Live Voice or Other. Received on February 11, 2026 at 2:00 PM.
Call for Dropped call or no message

Anonymous User from , CO

February 2, 2026 at 4:57 PM

303-406-5396 reported as a Robocall. Received on February 2, 2026 at 12:00 AM.
Call for Dropped call or no message

Anonymous User from Jim Thorpe, Pennsylvania

January 25, 2026 at 3:58 PM

303-406-2719 reported as a Robocall. Received on January 5, 2026 at 8:30 AM.

Anonymous User from Denver, Colorado

November 26, 2025 at 11:28 AM

303-406-9280 reported as a Robocall. Received on November 26, 2025 at 12:00 AM.
Call for Home improvement & cleaning

Anonymous User from , ND

September 27, 2025 at 4:38 PM

303-406-2719 reported as a Robocall. Received on September 27, 2025 at 1:55 PM.

Anonymous User from Port Angeles, WA

July 23, 2025 at 10:47 PM

303-406-2748 reported as a Prerecorded Voice. Received on July 23, 2025 at 11:12 AM.
Unwanted call for unknown
Contacted via Wired

Anonymous User from Saint Louis, Missouri

June 27, 2025 at 5:21 PM

303-406-2758 reported as a Robocall. Received on June 26, 2025 at 4:00 PM.
Call for Lotteries, prizes & sweepstakes

Anonymous User from Lakewood, Colorado

April 28, 2025 at 12:48 PM

303-406-4573 reported as a unwanted call. Received on April 26, 2025 at 9:05 AM.

Anonymous User from Millville, California

April 26, 2025 at 4:22 PM

303-406-2748 reported as a Live Voice or Other. Received on April 26, 2025 at 1:12 PM.
Call for No Subject Provided

Anonymous User from , CO

April 7, 2025 at 5:49 PM

303-406-9428 reported as a unwanted call. Received on April 7, 2025 at 2:25 PM.

Anonymous User from , CO

March 14, 2025 at 4:49 PM

303-406-7654 reported as a Robocall. Received on March 13, 2025 at 12:31 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Carlinville, Illinois

February 28, 2025 at 3:32 PM

303-406-2748 reported as a Live Voice or Other. Received on February 28, 2025 at 11:35 AM.
Call for Dropped call or no message

Anonymous User from Carlinville, Illinois

February 28, 2025 at 3:31 PM

303-406-2748 reported as a Live Voice or Other. Received on February 28, 2025 at 11:37 AM.
Call for Dropped call or no message

Anonymous User from Lanoka Harbor, New Jersey

February 7, 2025 at 5:54 PM

303-406-9478 reported as a Robocall. Received on February 7, 2025 at 9:50 AM.

Anonymous User from Livonia, Michigan

February 7, 2025 at 10:44 AM

303-406-9478 reported as a Live Voice or Other. Received on February 7, 2025 at 12:00 PM.
Call for Lotteries, prizes & sweepstakes

Anonymous User from , CA

October 14, 2024 at 4:10 PM

303-406-6591 reported as a Robocall. Received on October 14, 2024 at 10:42 AM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from , CA

October 14, 2024 at 4:09 PM

303-406-6591 reported as a Robocall. Received on October 13, 2024 at 4:40 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Bennett, Colorado

May 17, 2024 at 1:46 PM

303-406-6802 reported as a Live Voice or Other. Received on May 17, 2024 at 11:45 AM.
Call for Medical & prescriptions

Anonymous User from , CO

April 28, 2024 at 9:05 AM

303-406-4058 reported as a Live Voice or Other. Received on April 22, 2024 at 5:54 PM.
Call for Dropped call or no message

Anonymous User from , CO

April 21, 2024 at 9:10 AM

303-406-4058 reported as a Live Voice or Other. Received on April 17, 2024 at 1:41 PM.
Call for Dropped call or no message

Anonymous User from Avoca, Iowa

April 19, 2024 at 1:01 PM

303-406-6811 reported as a Robocall. Received on April 19, 2024 at 1:18 AM.

Anonymous User from , CO

April 7, 2024 at 8:44 AM

303-406-4058 reported as a Live Voice or Other. Received on April 4, 2024 at 6:21 PM.
Call for Dropped call or no message

Anonymous User from , CO

March 20, 2024 at 6:47 PM

303-406-5268 reported as a Live Voice or Other. Received on March 18, 2024 at 8:12 AM.
Call for No Subject Provided

Anonymous User from Long Beach, California

March 13, 2024 at 5:13 PM

303-406-2675 reported as a Robocall. Received on March 13, 2024 at 1:25 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Plymouth, Minnesota

September 20, 2023 at 8:34 PM

303-406-6811 reported as a Robocall. Received on September 20, 2023 at 6:37 PM.

Anonymous User from , CO

September 13, 2023 at 12:14 PM

303-406-4918 reported as a Robocall. Received on September 13, 2023 at 10:11 AM.
Call for Medical & prescriptions

Anonymous User from , CO

September 12, 2023 at 6:34 PM

303-406-9925 reported as a unwanted call. Received on September 12, 2023 at 1:23 PM.

Anonymous User from , CO

September 12, 2023 at 6:33 PM

303-406-9925 reported as a Robocall. Received on September 12, 2023 at 1:23 PM.

Anonymous User from , CO

April 30, 2023 at 8:15 AM

303-406-4050 reported as a Live Voice or Other. Received on April 25, 2023 at 5:52 PM.
Call for Dropped call or no message

Anonymous User from , CO

April 23, 2023 at 8:12 AM

303-406-4058 reported as a Live Voice or Other. Received on April 20, 2023 at 4:31 PM.
Call for Dropped call or no message

Anonymous User from , CO

April 16, 2023 at 8:07 AM

303-406-4058 reported as a Live Voice or Other. Received on April 10, 2023 at 10:55 AM.
Call for Dropped call or no message

Anonymous User from Castle Rock, Colorado

November 16, 2022 at 6:55 PM

303-406-6652 reported as a Robocall. Received on November 15, 2022 at 1:57 PM.
Call for Reducing your debt (credit cards, mortgage, student loans)

Anonymous User from Fort Lupton, Colorado

October 18, 2022 at 4:58 PM

303-406-0618 reported as a Robocall. Received on October 18, 2022 at 9:49 AM.

Anonymous User from Loveland, Colorado

September 5, 2022 at 10:54 AM

303-406-7225 reported as a Robocall. Received on September 2, 2022 at 2:52 PM.
Call for Dropped call or no message

Anonymous User from Westminster, Colorado

August 9, 2022 at 11:24 PM

303-406-9919 reported as a Live Voice or Other. Received on July 22, 2022 at 3:45 PM.

Anonymous User from Loveland, Colorado

July 11, 2022 at 12:56 PM

303-406-4006 reported as a Robocall. Received on July 6, 2022 at 12:29 PM.
Call for Dropped call or no message

Anonymous User from Loveland, Colorado

July 10, 2022 at 8:55 PM

303-406-4002 reported as a Robocall. Received on July 6, 2022 at 11:33 AM.
Call for Energy, solar, & utilities

Anonymous User from Colorado Springs, Colorado

July 6, 2022 at 2:06 PM

303-406-4004 reported as a Robocall. Received on July 6, 2022 at 12:00 PM.
Call for Energy, solar, & utilities

Anonymous User from , CO

July 6, 2022 at 1:33 PM

303-406-4002 reported as a Robocall. Received on July 6, 2022 at 11:30 AM.
Call for No Subject Provided

Anonymous User from , CO

May 30, 2022 at 9:26 PM

303-406-7420 reported as a unwanted call. Received on May 25, 2022 at 5:47 PM.

Anonymous User from , CO

June 2, 2017 at 9:14 PM

None reported as a Abandoned Calls. Received on June 2, 2017 at 12:00 AM.
Unwanted call for unknown
Caller ID indicated they called from 303-406-1649
Contacted via Wireless (cell phone/other mobile device)

Most 'popular' numbers on this prefix:

303-406-0XXX: 303-406-0601 | 303-406-0602 | 303-406-0606 | 303-406-0610 | 303-406-0611 | 303-406-0618 |
303-406-1XXX: 303-406-1500 | 303-406-1547 | 303-406-1551 | 303-406-1553 | 303-406-1554 | 303-406-1583 | 303-406-1600 | 303-406-1620 | 303-406-1640 | 303-406-1641 | 303-406-1647 |
303-406-2XXX: 303-406-2600 | 303-406-2661 | 303-406-2667 | 303-406-2670 | 303-406-2677 | 303-406-2678 | 303-406-2740 | 303-406-2745 | 303-406-2747 | 303-406-2777 |
303-406-3XXX: 303-406-3443 | 303-406-3446 | 303-406-3455 | 303-406-3456 | 303-406-3457 |
303-406-4XXX: 303-406-4000 | 303-406-4052 | 303-406-4053 | 303-406-4054 | 303-406-4062 | 303-406-4910 | 303-406-4911 | 303-406-4919 | 303-406-4993 | 303-406-4997 | 303-406-4998 |
303-406-5XXX: 303-406-5200 | 303-406-5260 | 303-406-5265 | 303-406-5268 |
303-406-6XXX: 303-406-6500 | 303-406-6550 | 303-406-6562 | 303-406-6591 | 303-406-6595 | 303-406-6599 | 303-406-6810 | 303-406-6811 | 303-406-6814 | 303-406-6883 | 303-406-6887 | 303-406-6889 |
303-406-7XXX: 303-406-7220 | 303-406-7223 | 303-406-7229 | 303-406-7247 | 303-406-7272 | 303-406-7278 | 303-406-7420 | 303-406-7423 | 303-406-7424 | 303-406-7600 | 303-406-7650 | 303-406-7653 | 303-406-7654 |
303-406-8XXX: 303-406-8500 | 303-406-8520 | 303-406-8522 | 303-406-8523 | 303-406-8556 | 303-406-8559 |
303-406-9XXX: 303-406-9470 | 303-406-9472 | 303-406-9478 | 303-406-9900 | 303-406-9922 | 303-406-9924 | 303-406-9929 | 303-406-9962 |