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301-623

You are reviewing the Area Code (NPA/NXX) report for 301-623. Did you mean to search the SMS short code 301623?

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Phone LookupTop ComplaintsArea CodesNPA-NXXiMessage
Examples: 206-739-5800, 206, 206-739, 48369
Raw Number301623
Basic Format301-623
NPA (Area Code)301
NXX623

Call Routing Data

NPA-NXX-XOCNCompanyRate CenterUse TypeAssign DateCityStateRegionBlock Effective Date
301-623-0XXX7529TELEPORT COMMUNICATIONS AMERICA, LLC - DCWSNG236Z13RTWASHINGTON 236 ZONE 13MDMA
301-623-1XXX7529TELEPORT COMMUNICATIONS AMERICA, LLC - DCWSNG236Z13RTWASHINGTON 236 ZONE 13MDMA
301-623-2XXX7529TELEPORT COMMUNICATIONS AMERICA, LLC - DCWSNG236Z13RTWASHINGTON 236 ZONE 13MDMA
301-623-3XXX7529TELEPORT COMMUNICATIONS AMERICA, LLC - DCWSNG236Z13RTWASHINGTON 236 ZONE 13MDMA
301-623-4XXX7529TELEPORT COMMUNICATIONS AMERICA, LLC - DCWSNG236Z13RTWASHINGTON 236 ZONE 13MDMA
301-623-5XXX2593CORE COMMUNICATIONS, INC.- MDWSNG236Z13AS04/11/2019WASHINGTON 236 ZONE 13MDMA04/29/2019
301-623-6XXX2593CORE COMMUNICATIONS, INC.- MDWSNG236Z13AS04/11/2019WASHINGTON 236 ZONE 13MDMA04/29/2019
301-623-7XXX2593CORE COMMUNICATIONS, INC.- MDWSNG236Z13AS04/11/2019WASHINGTON 236 ZONE 13MDMA04/29/2019
301-623-8XXX2593CORE COMMUNICATIONS, INC.- MDWSNG236Z13AS03/28/2019WASHINGTON 236 ZONE 13MDMA04/15/2019
301-623-9XXX2593CORE COMMUNICATIONS, INC.- MDWSNG236Z13AS03/28/2019WASHINGTON 236 ZONE 13MDMA04/15/2019
301-623-XXXX7529TELEPORT COMMUNICATIONS AMERICA, LLC - DCWSNG236Z13ASWASHINGTON 236 ZONE 13MD

Business/Government Phones on the 301-623 Prefix

PhoneNameAddress
301-623-4000Protection One Alarm Monitoring, Inc
301-623-4000Protection One Alarm Monitoring, Inc
301-623-2587AutoZone6486 Dobbin Center Way Columbia 21045 US
301-623-2797Dollar Tree3401 Laurel Ft Meade Road Laurel 20724 US
301-623-3706Dollar Tree7573 Greenbelt Road Greenbelt 20770-3403 US

Reports

Anonymous User from , KY

March 26, 2026 at 10:55 AM

301-623-1408 reported as a Robocall. Received on March 26, 2026 at 9:54 AM.

Anonymous User from Houston, Texas

August 1, 2025 at 4:25 PM

301-623-1427 reported as a Live Voice or Other. Received on August 1, 2025 at 12:00 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Smithsburg, Maryland

August 1, 2025 at 11:14 AM

301-623-6625 reported as a Robocall. Received on August 1, 2025 at 11:12 AM.
Call for Home security & alarms

Anonymous User from Beltsville, Maryland

April 6, 2025 at 12:15 PM

301-623-6618 reported as a Live Voice or Other. Received on March 26, 2025 at 12:00 AM.
Call for Dropped call or no message

Anonymous User from Mt Airy, MD

March 31, 2025 at 8:52 PM

301-623-4825 reported as a Live Voice. Received on March 31, 2025 at 4:15 PM.
Unwanted call for Amazon Services
Contacted via Internet (VOIP)

Anonymous User from Smithsburg, Maryland

March 14, 2025 at 10:57 AM

301-623-1849 reported as a Robocall. Received on March 14, 2025 at 10:56 AM.
Call for Medical & prescriptions

Anonymous User from Rockville, Maryland

January 28, 2025 at 7:29 PM

301-623-9718 reported as a Robocall. Received on January 28, 2025 at 2:59 PM.

Anonymous User from College Park, Maryland

November 1, 2024 at 3:23 PM

301-623-6926 reported as a Live Voice or Other. Received on November 1, 2024 at 3:15 PM.
Call for No Subject Provided

Anonymous User from Rockville, Maryland

July 23, 2024 at 3:26 PM

301-623-9673 reported as a Live Voice or Other. Received on July 23, 2024 at 3:24 PM.
Call for Dropped call or no message

Anonymous User from Gaithersburg, Maryland

May 17, 2023 at 8:04 PM

301-623-2173 reported as a Robocall. Received on May 17, 2023 at 7:41 PM.
Call for Energy, solar, & utilities

Anonymous User from Greenbelt, Maryland

February 26, 2023 at 9:51 AM

301-623-1211 reported as a Robocall. Received on February 6, 2023 at 8:44 AM.
Call for Medical & prescriptions

Anonymous User from Greenbelt, Maryland

February 26, 2023 at 9:51 AM

301-623-6221 reported as a Robocall. Received on February 6, 2023 at 11:23 AM.
Call for Medical & prescriptions

Anonymous User from Greenbelt, Maryland

February 26, 2023 at 9:50 AM

301-623-4914 reported as a Robocall. Received on January 13, 2023 at 10:35 AM.
Call for Medical & prescriptions

Anonymous User from Fairfax, Virginia

February 1, 2023 at 4:25 PM

301-623-1855 reported as a Robocall. Received on February 1, 2023 at 2:45 PM.

Anonymous User from College Park, Maryland

January 14, 2023 at 12:16 PM

301-623-2709 reported as a Robocall. Received on January 14, 2023 at 12:03 AM.
Call for Medical & prescriptions

Anonymous User from , WA

December 22, 2022 at 10:30 AM

301-623-1427 reported as a Live Voice or Other. Received on December 22, 2022 at 12:00 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Washington, DC

December 5, 2022 at 5:35 PM

301-623-7037 reported as a Prerecorded Voice. Received on December 5, 2022 at 12:30 PM.
Unwanted call for unknown
Contacted via Internet (VOIP)

Anonymous User from Silver Spring, Maryland

September 29, 2022 at 9:24 AM

301-623-0082 reported as a Live Voice or Other. Received on September 29, 2022 at 9:16 AM.
Call for Energy, solar, & utilities

Anonymous User from , MD

September 14, 2022 at 2:16 PM

301-623-7574 reported as a Live Voice or Other. Received on September 14, 2022 at 2:12 PM.
Call for Home improvement & cleaning

Anonymous User from Cleveland, Maryland

August 12, 2022 at 1:49 PM

301-623-3356 reported as a Robocall. Received on August 11, 2022 at 3:42 PM.

Anonymous User from Cleveland, Ohio

August 11, 2022 at 3:45 PM

301-623-3356 reported as a Live Voice or Other. Received on August 11, 2022 at 3:42 PM.

Anonymous User from , MD

August 23, 2016 at 3:40 PM

reported as a Abandoned Calls. Received on August 23, 2016 at 10:17 AM.
Telemarketing (including do not call and spoofing) for unknown
Caller ID indicated they called from 301-623-1016
Contacted via Wireless (cell phone/other mobile device)

Most 'popular' numbers on this prefix:

301-623-0XXX: 301-623-0015 | 301-623-0017 | 301-623-0024 | 301-623-0080 | 301-623-0083 | 301-623-0088 |
301-623-1XXX: 301-623-1000 | 301-623-1001 | 301-623-1004 | 301-623-1010 | 301-623-1014 | 301-623-1015 | 301-623-1212 | 301-623-1214 | 301-623-1215 | 301-623-1234 | 301-623-1247 | 301-623-1400 | 301-623-1409 | 301-623-1414 | 301-623-1422 | 301-623-1424 | 301-623-1429 | 301-623-1800 | 301-623-1847 | 301-623-1852 | 301-623-1853 | 301-623-1854 | 301-623-1887 |
301-623-2XXX: 301-623-2000 | 301-623-2003 | 301-623-2005 | 301-623-2006 | 301-623-2097 | 301-623-2098 | 301-623-2099 | 301-623-2164 | 301-623-2169 | 301-623-2175 | 301-623-2178 | 301-623-2179 | 301-623-2188 | 301-623-2200 | 301-623-2201 | 301-623-2203 | 301-623-2247 | 301-623-2262 | 301-623-2700 | 301-623-2703 | 301-623-2707 | 301-623-2758 | 301-623-2777 | 301-623-2778 |
301-623-3XXX: 301-623-3300 | 301-623-3333 | 301-623-3345 | 301-623-3350 | 301-623-3353 | 301-623-3355 |
301-623-4XXX: 301-623-4000 | 301-623-4003 | 301-623-4007 | 301-623-4047 | 301-623-4062 | 301-623-4800 | 301-623-4820 | 301-623-4822 | 301-623-4823 | 301-623-4910 | 301-623-4911 | 301-623-4919 | 301-623-4993 | 301-623-4997 | 301-623-4998 |
301-623-6XXX: 301-623-6222 | 301-623-6226 | 301-623-6228 | 301-623-6236 | 301-623-6237 | 301-623-6247 | 301-623-6600 | 301-623-6610 | 301-623-6611 | 301-623-6612 | 301-623-6652 | 301-623-6656 | 301-623-6900 | 301-623-6920 | 301-623-6923 | 301-623-6925 | 301-623-6996 | 301-623-6998 |
301-623-7XXX: 301-623-7000 | 301-623-7030 | 301-623-7035 | 301-623-7037 | 301-623-7040 | 301-623-7070 | 301-623-7156 | 301-623-7157 | 301-623-7159 | 301-623-7172 | 301-623-7176 | 301-623-7179 | 301-623-7500 | 301-623-7507 | 301-623-7570 | 301-623-7575 | 301-623-7577 |
301-623-9XXX: 301-623-9670 | 301-623-9676 | 301-623-9677 | 301-623-9705 | 301-623-9706 | 301-623-9707 | 301-623-9710 | 301-623-9712 | 301-623-9717 |