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301-256

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Phone LookupTop ComplaintsArea CodesNPA-NXXiMessage
Examples: 206-739-5800, 206, 206-739, 48369
Raw Number301256
Basic Format301-256
NPA (Area Code)301
NXX256

Call Routing Data

NPA-NXX-XOCNCompanyRate CenterUse TypeAssign DateCityStateRegionBlock Effective Date
301-256-0XXX6119LEVEL 3 COMMUNICATIONS, LLC - MDLAUREL236AS11/06/2007LAUREL 236MDMA11/16/2007
301-256-1XXX4036NEW CINGULAR WIRELESS PCS, LLC - DCLAUREL236AS06/14/2010LAUREL 236MDMA07/12/2010
301-256-2XXX4036NEW CINGULAR WIRELESS PCS, LLC - DCLAUREL236AS06/14/2010LAUREL 236MDMA07/12/2010
301-256-3XXX7229MCIMETRO ACCESS TRANSMISSION SERVICES LLCLAUREL236RTLAUREL 236MDMA
301-256-4XXX6855OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLCLAUREL236AS12/10/2004LAUREL 236MDMA01/08/2005
301-256-5XXX6855OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLCLAUREL236AS10/14/2004LAUREL 236MDMA11/06/2004
301-256-6XXX4036NEW CINGULAR WIRELESS PCS, LLC - DCLAUREL236AS02/11/2010LAUREL 236MDMA03/07/2010
301-256-7XXX6855OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLCLAUREL236AS04/29/2005LAUREL 236MDMA05/27/2005
301-256-8XXX6855OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLCLAUREL236AS06/20/2005LAUREL 236MDMA07/15/2005
301-256-9XXX7229MCIMETRO ACCESS TRANSMISSION SERVICES LLCLAUREL236RTLAUREL 236MDMA
301-256-XXXX7229MCIMETRO ACCESS TRANSMISSION SERVICES LLCLAUREL236ASLAUREL 236MD

Business/Government Phones on the 301-256 Prefix

PhoneNameAddress
301-256-2365Brooks Heating and Cooling LLC
301-256-2408Ayala Construction LLC
301-256-4363Stellar Data and IT Consulting LLC
301-256-7060Potts Construction & Design Group LLC

Reports

Anonymous User from , MD

February 10, 2026 at 10:45 AM

301-256-5321 reported as a Robocall. Received on February 9, 2026 at 9:20 AM.

Anonymous User from Damascus, Maryland

December 6, 2025 at 3:34 PM

301-256-9469 reported as a Robocall. Received on December 6, 2025 at 3:30 PM.
Call for Medical & prescriptions

Anonymous User from Potomac, Maryland

November 26, 2025 at 12:09 PM

301-256-8101 reported as a Robocall. Received on November 26, 2025 at 11:08 AM.

Anonymous User from Upper Marlboro, Maryland

February 6, 2025 at 10:40 AM

301-256-3236 reported as a Live Voice or Other. Received on February 4, 2025 at 9:30 AM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Smithsburg, Maryland

January 6, 2025 at 12:59 PM

301-256-0808 reported as a Robocall. Received on January 6, 2025 at 12:59 PM.
Call for Medical & prescriptions

Anonymous User from Smithsburg, Maryland

November 26, 2024 at 3:54 PM

301-256-0142 reported as a Robocall. Received on November 26, 2024 at 3:53 PM.
Call for Medical & prescriptions

Anonymous User from Thurmont, Maryland

November 19, 2024 at 9:35 AM

301-256-9278 reported as a Live Voice or Other. Received on November 19, 2024 at 9:22 AM.
Call for Medical & prescriptions

Anonymous User from Annapolis, Maryland

June 27, 2024 at 6:45 PM

301-256-9401 reported as a unwanted call. Received on June 5, 2024 at 11:14 AM.
Call for Dropped call or no message

Anonymous User from Rockville, Maryland

August 17, 2023 at 4:54 PM

301-256-7335 reported as a Robocall. Received on August 17, 2023 at 4:47 PM.

Anonymous User from Gaithersburg, Maryland

June 26, 2023 at 5:25 PM

301-256-1776 reported as a Robocall. Received on June 26, 2023 at 12:23 PM.
Call for Dropped call or no message

Anonymous User from Rockville, Maryland

June 20, 2023 at 12:35 PM

301-256-4504 reported as a Live Voice or Other. Received on June 15, 2023 at 7:49 PM.
Call for Dropped call or no message

Anonymous User from College Park, Maryland

January 24, 2023 at 2:17 PM

301-256-9871 reported as a Robocall. Received on January 24, 2023 at 2:12 PM.
Call for Dropped call or no message

Anonymous User from Bethesda, Maryland

December 15, 2022 at 6:37 PM

301-256-6702 reported as a Robocall. Received on December 9, 2022 at 4:52 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Rockville, Maryland

October 7, 2022 at 6:28 PM

301-256-4548 reported as a Live Voice or Other. Received on October 7, 2022 at 3:02 PM.
Call for Dropped call or no message

Anonymous User from , MD

September 27, 2022 at 4:07 PM

301-256-8306 reported as a Robocall. Received on September 27, 2022 at 7:10 AM.
Call for Home improvement & cleaning

Anonymous User from Rockville, Maryland

September 17, 2022 at 5:50 PM

301-256-5348 reported as a Live Voice or Other. Received on September 16, 2022 at 2:46 PM.
Call for Dropped call or no message

Anonymous User from Fort Washington, Maryland

August 26, 2022 at 9:31 PM

301-256-8208 reported as a Robocall. Received on August 26, 2022 at 11:09 AM.

Anonymous User from Fort Washington, Maryland

August 26, 2022 at 9:29 PM

301-256-8208 reported as a Robocall. Received on August 26, 2022 at 10:19 AM.

Anonymous User from , MD

July 1, 2022 at 12:03 PM

301-256-0517 reported as a Robocall. Received on June 23, 2022 at 3:20 PM.
Call for No Subject Provided

Anonymous User from Olney, Maryland

June 20, 2022 at 1:17 PM

301-256-0517 reported as a Robocall. Received on June 20, 2022 at 11:14 AM.

Most 'popular' numbers on this prefix:

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301-256-5XXX: 301-256-5200 | 301-256-5212 | 301-256-5215 | 301-256-5217 | 301-256-5300 | 301-256-5340 | 301-256-5343 | 301-256-5345 |
301-256-6XXX: 301-256-6170 | 301-256-6173 | 301-256-6177 | 301-256-6188 | 301-256-6197 | 301-256-6198 | 301-256-6443 | 301-256-6447 | 301-256-6449 | 301-256-6452 | 301-256-6453 | 301-256-6454 | 301-256-6700 | 301-256-6704 | 301-256-6706 | 301-256-6761 | 301-256-6762 | 301-256-6767 |
301-256-7XXX: 301-256-7000 | 301-256-7040 | 301-256-7060 | 301-256-7062 | 301-256-7069 | 301-256-7070 | 301-256-7252 | 301-256-7258 | 301-256-7260 | 301-256-7265 | 301-256-7268 | 301-256-7272 | 301-256-7330 | 301-256-7333 | 301-256-7337 | 301-256-7371 | 301-256-7373 | 301-256-7430 | 301-256-7433 | 301-256-7434 | 301-256-7883 | 301-256-7887 | 301-256-7889 | 301-256-7890 | 301-256-7891 | 301-256-7899 |
301-256-8XXX: 301-256-8150 | 301-256-8153 | 301-256-8157 | 301-256-8181 | 301-256-8187 | 301-256-8188 | 301-256-8200 | 301-256-8201 | 301-256-8207 | 301-256-8258 | 301-256-8282 | 301-256-8300 | 301-256-8303 | 301-256-8309 | 301-256-8800 | 301-256-8870 | 301-256-8877 | 301-256-8878 | 301-256-8887 | 301-256-8888 | 301-256-8970 | 301-256-8975 | 301-256-8977 | 301-256-8996 | 301-256-8997 | 301-256-8998 |
301-256-9XXX: 301-256-9270 | 301-256-9272 | 301-256-9277 | 301-256-9400 | 301-256-9408 | 301-256-9409 | 301-256-9453 | 301-256-9660 | 301-256-9663 | 301-256-9665 | 301-256-9706 | 301-256-9707 | 301-256-9762 | 301-256-9765 | 301-256-9766 | 301-256-9870 | 301-256-9871 | 301-256-9877 |