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303-385

You are reviewing the Area Code (NPA/NXX) report for 303-385. Did you mean to search the SMS short code 303385?

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Examples: 206-739-5800, 206, 206-739, 48369
Raw Number303385
Basic Format303-385
NPA (Area Code)303
NXX385

Call Routing Data

NPA-NXX-XOCNCompanyRate CenterUse TypeAssign DateStateRegionBlock Effective Date
303-385-0XXX026DONVOY, LLC - CODENVERAS06/16/2022COWE07/16/2022
303-385-1XXX6118LEVEL 3 COMMUNICATIONS, LLC - CODENVERRTCOWE
303-385-2XXX6118LEVEL 3 COMMUNICATIONS, LLC - CODENVERRTCOWE
303-385-3XXX6529T-MOBILE USA, INC.DENVERAS05/08/2006COWE06/05/2006
303-385-4XXX6118LEVEL 3 COMMUNICATIONS, LLC - CODENVERRTCOWE
303-385-5XXX6118LEVEL 3 COMMUNICATIONS, LLC - CODENVERRTCOWE
303-385-6XXX624HONVOY SPECTRUM, LLCDENVERAS04/19/2022COWE05/13/2022
303-385-7XXX6010NEW CINGULAR WIRELESS PCS, LLCDENVERAS09/20/2007COWE10/20/2007
303-385-8XXX6118LEVEL 3 COMMUNICATIONS, LLC - CODENVERRTCOWE
303-385-9XXX6567CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CODENVERAS04/19/2022COWE05/19/2022
303-385-XXXX6118LEVEL 3 COMMUNICATIONS, LLC - CODENVERASCO

Business/Government Phones on the 303-385 Prefix

PhoneNameAddress
303-385-8515Keen Independent Research701 North 1st Street Phoenix 85004 US

Reports

Anonymous User from Denver, Colorado

March 17, 2026 at 2:23 PM

303-385-0509 reported as a Robocall. Received on March 17, 2026 at 10:49 AM.
Call for Warranties & protection plans

Anonymous User from Lakewood, Colorado

March 13, 2026 at 9:08 PM

303-385-5370 reported as a Robocall. Received on March 13, 2026 at 6:54 PM.

Anonymous User from , PA

March 11, 2026 at 11:03 AM

303-385-0843 reported as a Live Voice or Other. Received on March 11, 2026 at 9:00 AM.
Call for Warranties & protection plans

Anonymous User from Bayfield, Colorado

March 10, 2026 at 11:10 PM

303-385-0802 reported as a Robocall. Received on February 24, 2026 at 6:06 PM.

Anonymous User from Denver, Colorado

March 4, 2026 at 12:54 PM

303-385-0495 reported as a Robocall. Received on March 4, 2026 at 12:47 PM.

Anonymous User from , CO

March 3, 2026 at 9:13 PM

303-385-0802 reported as a Robocall. Received on February 24, 2026 at 6:14 PM.

Anonymous User from , CO

February 25, 2026 at 8:30 AM

303-385-0802 reported as a Robocall. Received on February 24, 2026 at 5:00 PM.

Anonymous User from Colorado Springs, CO

February 6, 2026 at 9:53 PM

720-792-9163 reported as a Prerecorded Voice. Received on February 6, 2026 at 12:00 AM.
Unwanted call for Other Services
Caller ID indicated they called from 303-385-0641
Contacted via Wired

Anonymous User from Santa Monica, California

February 6, 2026 at 1:00 PM

303-385-0641 reported as a Robocall. Received on February 6, 2026 at 8:55 AM.

Anonymous User from , CO

February 4, 2026 at 12:45 PM

303-385-5943 reported as a Robocall. Received on February 3, 2026 at 10:24 AM.
Call for Medical & prescriptions

Anonymous User from Colorado Springs, Colorado

January 15, 2026 at 5:47 PM

303-385-0001 reported as a Robocall. Received on January 15, 2026 at 4:12 PM.

Anonymous User from Randolph, New Jersey

January 13, 2026 at 5:42 PM

303-385-4601 reported as a Robocall. Received on January 13, 2026 at 3:59 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Longmont, Colorado

January 8, 2026 at 12:10 PM

303-385-0704 reported as a Robocall. Received on January 8, 2026 at 10:06 AM.

Anonymous User from Hillsborough, New Jersey

January 7, 2026 at 11:11 AM

303-385-4601 reported as a Live Voice or Other. Received on January 7, 2026 at 11:08 AM.
Call for Home improvement & cleaning

Anonymous User from Boulder, Colorado

December 22, 2025 at 4:31 PM

303-385-0527 reported as a Live Voice or Other. Received on December 22, 2025 at 2:29 PM.
Call for Dropped call or no message

Anonymous User from Columbus, Colorado

November 24, 2025 at 3:16 PM

303-385-0804 reported as a unwanted call. Received on November 24, 2025 at 12:00 AM.
Call for Reducing your debt (credit cards, mortgage, student loans)

Anonymous User from , CO

November 14, 2025 at 9:39 AM

303-385-4583 reported as a Robocall. Received on November 12, 2025 at 11:56 AM.

Anonymous User from Camas, Washington

November 13, 2025 at 6:18 PM

303-385-0809 reported as a Robocall. Received on November 11, 2025 at 11:00 AM.

Anonymous User from Longmont, Colorado

September 24, 2025 at 8:51 AM

303-385-0371 reported as a Live Voice or Other. Received on September 21, 2025 at 12:00 PM.
Call for No Subject Provided

Anonymous User from , CA

July 21, 2025 at 6:36 PM

303-385-6614 reported as a Live Voice or Other. Received on July 19, 2025 at 12:00 AM.

Anonymous User from Denver, Colorado

June 18, 2025 at 4:18 PM

303-385-0530 reported as a Live Voice or Other. Received on June 18, 2025 at 2:14 PM.

Anonymous User from Lugofg, South Carolina

May 12, 2025 at 11:57 AM

303-385-4601 reported as a Live Voice or Other. Received on May 12, 2025 at 12:00 PM.

Anonymous User from Clifton, Colorado

March 12, 2025 at 5:17 PM

303-385-0802 reported as a Robocall. Received on March 11, 2025 at 6:43 PM.

Anonymous User from Mack, Colorado

March 11, 2025 at 8:46 PM

303-385-0802 reported as a Robocall. Received on March 11, 2025 at 6:42 PM.

Anonymous User from Palisade, Colorado

March 11, 2025 at 8:43 PM

303-385-0802 reported as a Robocall. Received on March 11, 2025 at 6:38 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from , CO

January 21, 2025 at 5:51 PM

303-385-0333 reported as a unwanted call. Received on January 20, 2025 at 9:12 AM.

Anonymous User from , CO

January 9, 2025 at 3:19 PM

303-385-4143 reported as a Robocall. Received on January 9, 2025 at 6:58 AM.

Anonymous User from , CO

November 28, 2024 at 6:48 AM

303-385-0333 reported as a unwanted call. Received on November 27, 2024 at 11:56 AM.

Anonymous User from , CO

November 24, 2024 at 3:14 AM

303-385-0333 reported as a unwanted call. Received on November 18, 2024 at 12:18 PM.

Anonymous User from , CO

November 24, 2024 at 3:13 AM

303-385-0333 reported as a unwanted call. Received on November 20, 2024 at 4:37 PM.

Anonymous User from , CO

November 24, 2024 at 3:13 AM

303-385-0333 reported as a unwanted call. Received on November 20, 2024 at 4:37 PM.

Anonymous User from San Diego, CA

November 13, 2024 at 5:57 PM

reported as a Live Voice. Received on November 13, 2024 at 11:50 AM.
Unwanted call for Computer Other Services
Caller ID indicated they called from 303-385-0580
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from , CO

October 22, 2024 at 2:34 PM

303-385-0444 reported as a unwanted call. Received on October 21, 2024 at 4:04 PM.

Anonymous User from , CO

October 16, 2024 at 4:37 PM

303-385-0333 reported as a unwanted call. Received on October 15, 2024 at 1:32 PM.

Anonymous User from , CO

August 17, 2024 at 5:03 AM

303-385-0444 reported as a Robocall. Received on August 16, 2024 at 3:58 PM.

Anonymous User from Sarasota, Florida

June 20, 2024 at 9:53 AM

303-385-0747 reported as a Live Voice or Other. Received on June 18, 2024 at 4:54 PM.

Anonymous User from Oklahoma City, OK

January 25, 2024 at 8:08 PM

None reported as a Live Voice. Received on January 25, 2024 at 1:58 PM.
Unwanted call for unknown
Caller ID indicated they called from 303-385-8011
Contacted via Internet (VOIP)

Anonymous User from , CO

January 19, 2024 at 8:43 PM

303-385-5347 reported as a Robocall. Received on January 19, 2024 at 2:04 PM.

Anonymous User from Kissimmee, Florida

December 28, 2023 at 3:02 PM

303-385-1647 reported as a Live Voice or Other. Received on December 28, 2023 at 2:57 PM.
Call for Home improvement & cleaning

Anonymous User from , NC

November 25, 2023 at 2:03 PM

303-385-4601 reported as a Live Voice or Other. Received on November 25, 2023 at 1:53 PM.

Anonymous User from Aurora, Colorado

November 17, 2023 at 3:11 PM

303-385-0750 reported as a Robocall. Received on November 17, 2023 at 1:09 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Pittsburgh, Pennsylvania

October 10, 2023 at 1:12 PM

303-385-0747 reported as a Live Voice or Other. Received on September 28, 2023 at 12:00 AM.

Anonymous User from Mattawan, Michigan

September 26, 2023 at 9:25 AM

303-385-0747 reported as a Robocall. Received on September 26, 2023 at 9:20 AM.

Anonymous User from Aurora, Colorado

August 28, 2023 at 6:29 PM

303-385-4801 reported as a Live Voice or Other. Received on August 28, 2023 at 12:00 AM.
Call for Medical & prescriptions

Anonymous User from , CO

June 13, 2023 at 4:53 PM

303-385-3262 reported as a Robocall. Received on June 6, 2023 at 12:00 AM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Denver, Colorado

May 25, 2023 at 6:54 PM

303-385-6822 reported as a unwanted call. Received on May 24, 2023 at 4:48 PM.

Anonymous User from Longmont, Colorado

May 23, 2023 at 5:00 PM

303-385-2636 reported as a Robocall. Received on May 23, 2023 at 2:54 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from , CO

May 22, 2023 at 10:47 AM

303-385-1904 reported as a Live Voice or Other. Received on May 22, 2023 at 8:02 AM.

Anonymous User from Westminster, Colorado

March 11, 2023 at 5:55 PM

303-385-0438 reported as a Live Voice or Other. Received on January 25, 2023 at 11:08 AM.

Anonymous User from Littleton, Colorado

January 27, 2023 at 6:03 PM

303-385-0438 reported as a Robocall. Received on January 26, 2023 at 9:09 AM.
Call for Dropped call or no message

Anonymous User from Littleton, Colorado

January 27, 2023 at 2:54 PM

303-385-4942 reported as a Robocall. Received on January 27, 2023 at 12:42 AM.

Anonymous User from , CO

January 26, 2023 at 1:58 PM

303-385-3262 reported as a Robocall. Received on January 26, 2023 at 12:00 AM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from , CO

November 6, 2022 at 8:15 AM

303-385-8510 reported as a Live Voice or Other. Received on November 2, 2022 at 12:27 PM.
Call for Dropped call or no message

Anonymous User from Denver, Colorado

September 7, 2022 at 6:39 PM

303-385-3375 reported as a Live Voice or Other. Received on September 7, 2022 at 4:30 PM.
Call for Dropped call or no message

Anonymous User from , CO

August 6, 2022 at 4:06 PM

303-385-0693 reported as a Robocall. Received on August 4, 2022 at 5:55 PM.
Call for Warranties & protection plans

Anonymous User from Lakewood, Colorado

July 25, 2022 at 10:35 AM

303-385-4240 reported as a Robocall. Received on July 22, 2022 at 3:54 PM.
Call for Dropped call or no message

Anonymous User from Portland, TX

April 21, 2022 at 11:36 PM

303-385-4711 reported as a Prerecorded Voice. Received on April 21, 2022 at 11:30 AM.
Unwanted call for Auto Warranty Services
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from Boulder, CO

November 19, 2020 at 8:30 PM

303-385-0308 reported as a Prerecorded Voice. Received on November 19, 2020 at 1:22 PM.
Unwanted call for unknown
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from , VA

May 12, 2015 at 6:06 PM

202-738-1919 reported as a Prerecorded Voice. Received on May 12, 2015 at 12:55 PM.
Telemarketing (including do not call and spoofing) for unknown
Caller ID indicated they called from 303-385-0493
Contacted via Wired

Anonymous User from , MN

April 27, 2015 at 4:32 PM

325-716-4779 reported as a Prerecorded Voice. Received on April 27, 2015 at 9:58 AM.
Telemarketing (including do not call and spoofing) for unknown
Caller ID indicated they called from 303-385-0493
Contacted via Wired

Anonymous User from , DC

April 3, 2015 at 2:34 PM

206-462-5425 reported as a Prerecorded Voice. Received on April 3, 2015 at 9:26 AM.
Telemarketing (including do not call and spoofing) for unknown
Caller ID indicated they called from 303-385-0493
Contacted via Wired

Anonymous User from , MO

March 4, 2015 at 5:26 PM

209-813-2710 reported as a Prerecorded Voice. Received on February 25, 2015 at 4:23 PM.
Robocall for unknown
Caller ID indicated they called from 303-385-0493
Contacted via Wired

Anonymous User from , HI

February 20, 2015 at 10:43 PM

reported as a Live Voice. Received on February 20, 2015 at 11:30 AM.
Telemarketing (including do not call and spoofing) for unknown
Caller ID indicated they called from 303-385-0493
Contacted via Wired

Anonymous User from , CO

December 11, 2014 at 8:14 PM

303-385-8685 reported as a Live Voice. Received on December 11, 2014 at 11:36 AM.
Telemarketing (including do not call and spoofing) for unknown
Caller ID indicated they called from 720-963-6103
Contacted via Wireless (cell phone/other mobile device)

Most 'popular' numbers on this prefix:

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303-385-2XXX: 303-385-2600 | 303-385-2630 | 303-385-2631 | 303-385-2633 | 303-385-2666 | 303-385-2700 | 303-385-2720 | 303-385-2740 | 303-385-2745 | 303-385-2747 | 303-385-2777 |
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303-385-5XXX: 303-385-5301 | 303-385-5303 | 303-385-5340 | 303-385-5344 | 303-385-5345 | 303-385-5358 | 303-385-5500 | 303-385-5507 | 303-385-5508 | 303-385-5509 | 303-385-5550 | 303-385-5555 | 303-385-5600 | 303-385-5606 | 303-385-5650 | 303-385-5655 | 303-385-5656 |
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303-385-8XXX: 303-385-8000 | 303-385-8003 | 303-385-8009 | 303-385-8010 | 303-385-8016 | 303-385-8018 | 303-385-8505 | 303-385-8510 | 303-385-8512 | 303-385-8516 | 303-385-8555 | 303-385-8559 | 303-385-8651 | 303-385-8655 | 303-385-8659 | 303-385-8666 | 303-385-8668 | 303-385-8669 | 303-385-8684 | 303-385-8686 | 303-385-8688 |