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240-552

You are reviewing the Area Code (NPA/NXX) report for 240-552. Did you mean to search the SMS short code 240552?

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Raw Number240552
Basic Format240-552
NPA (Area Code)240
NXX552

Call Routing Data

NPA-NXX-XOCNCompanyRate CenterUse TypeAssign DateCityStateRegionBlock Effective Date
240-552-0XXX4036NEW CINGULAR WIRELESS PCS, LLC - DCWSNGTNZN10AS03/27/2009WASHINGTON ZONE 10MDMA06/23/2009
240-552-1XXX4036NEW CINGULAR WIRELESS PCS, LLC - DCWSNGTNZN10AS03/27/2009WASHINGTON ZONE 10MDMA06/23/2009
240-552-2XXX4036NEW CINGULAR WIRELESS PCS, LLC - DCWSNGTNZN10AS03/27/2009WASHINGTON ZONE 10MDMA06/23/2009
240-552-3XXX4036NEW CINGULAR WIRELESS PCS, LLC - DCWSNGTNZN10AS03/27/2009WASHINGTON ZONE 10MDMA06/23/2009
240-552-4XXX4036NEW CINGULAR WIRELESS PCS, LLC - DCWSNGTNZN10AS03/27/2009WASHINGTON ZONE 10MDMA06/23/2009
240-552-5XXX876DONVOY, LLC - MDWSNGTNZN10AS03/29/2016WASHINGTON ZONE 10MDMA04/28/2016
240-552-6XXX071FBANDWIDTH.COM CLEC, LLC - MDWSNGTNZN10AS04/08/2011WASHINGTON ZONE 10MDMA05/07/2011
240-552-7XXX876DONVOY, LLC - MDWSNGTNZN10AS03/31/2011WASHINGTON ZONE 10MDMA04/12/2011
240-552-8XXX7591LEVEL 3 TELECOM OF MARYLAND, LLC - MDWSNGTNZN10AS01/20/2015WASHINGTON ZONE 10MDMA02/16/2015
240-552-9XXX071FBANDWIDTH.COM CLEC, LLC - MDWSNGTNZN10AS04/08/2011WASHINGTON ZONE 10MDMA05/07/2011
240-552-XXXX4036NEW CINGULAR WIRELESS PCS, LLC - DCWSNGTNZN10AS03/25/2009WASHINGTON ZONE 10MD

Business/Government Phones on the 240-552 Prefix

PhoneNameAddress
240-552-9445MathnasiumUS

Reports

Anonymous User from Landover, Maryland

January 26, 2026 at 11:23 AM

240-552-7383 reported as a Robocall. Received on January 26, 2026 at 11:16 AM.

Anonymous User from Upper Marlboro, Maryland

September 18, 2025 at 4:31 PM

240-552-5385 reported as a Live Voice or Other. Received on September 18, 2025 at 3:24 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Cape Coral, Florida

August 9, 2025 at 2:42 PM

240-552-5576 reported as a Robocall. Received on August 9, 2025 at 2:40 PM.

Anonymous User from , MD

August 2, 2025 at 7:18 PM

240-552-5554 reported as a Robocall. Received on August 2, 2025 at 12:00 AM.
Call for Reducing your debt (credit cards, mortgage, student loans)

Anonymous User from Eldersburg, MD

July 28, 2025 at 6:19 PM

reported as a Prerecorded Voice. Received on July 28, 2025 at 12:00 PM.
Unwanted call for unknown
Caller ID indicated they called from 240-552-5544
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from Miami Beach, Florida

May 31, 2025 at 7:58 PM

240-552-0369 reported as a Robocall. Received on May 31, 2025 at 2:24 PM.
Call for Reducing your debt (credit cards, mortgage, student loans)

Anonymous User from Miami Beach, Florida

May 30, 2025 at 4:03 PM

240-552-0369 reported as a Robocall. Received on May 30, 2025 at 3:09 PM.
Call for Dropped call or no message

Anonymous User from Silver Spring, Maryland

April 3, 2025 at 4:10 AM

240-552-4933 reported as a Robocall. Received on March 29, 2025 at 4:43 PM.

Anonymous User from Silver Spring, Maryland

April 1, 2025 at 12:35 PM

240-552-6431 reported as a Live Voice or Other. Received on April 1, 2025 at 12:24 PM.

Anonymous User from , IA

March 18, 2025 at 6:15 PM

240-552-9878 reported as a Robocall. Received on March 18, 2025 at 11:40 AM.

Anonymous User from , MD

December 4, 2024 at 1:27 PM

240-552-5919 reported as a unwanted call. Received on December 4, 2024 at 12:00 AM.
Call for No Subject Provided

Anonymous User from Las Vegas, Nevada

September 19, 2024 at 5:31 PM

240-552-6990 reported as a Live Voice or Other. Received on September 19, 2024 at 2:30 PM.
Call for Computer & technical support

Anonymous User from Gaithersburg, Maryland

July 8, 2024 at 10:34 AM

240-552-9319 reported as a Robocall. Received on July 8, 2024 at 9:36 AM.
Call for Warranties & protection plans

Anonymous User from , MD

June 20, 2024 at 8:57 AM

240-552-7169 reported as a Live Voice or Other. Received on June 19, 2024 at 12:00 AM.

Anonymous User from , MD

May 23, 2024 at 4:10 PM

240-552-7754 reported as a Robocall. Received on May 22, 2024 at 9:37 AM.
Call for No Subject Provided

Anonymous User from , MD

May 23, 2024 at 4:05 PM

240-552-7149 reported as a Robocall. Received on May 23, 2024 at 11:05 AM.
Call for No Subject Provided

Anonymous User from , MD

March 28, 2024 at 5:53 PM

240-552-7639 reported as a Live Voice or Other. Received on March 28, 2024 at 11:50 AM.
Call for Dropped call or no message

Anonymous User from Warsaw, Indiana

March 5, 2024 at 9:35 AM

240-552-6015 reported as a Live Voice or Other. Received on February 5, 2024 at 12:00 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Bowie, Maryland

November 2, 2023 at 2:11 PM

240-552-7566 reported as a Robocall. Received on November 2, 2023 at 1:45 PM.

Anonymous User from , GA

November 2, 2023 at 12:36 PM

240-552-7799 reported as a Robocall. Received on November 2, 2023 at 12:28 PM.

Anonymous User from College Park, Maryland

October 10, 2023 at 11:11 AM

240-552-6164 reported as a Robocall. Received on October 10, 2023 at 11:01 AM.

Anonymous User from , MD

September 30, 2023 at 9:35 AM

240-552-7461 reported as a Live Voice or Other. Received on September 12, 2023 at 3:18 PM.

Anonymous User from Marquette, Michigan

September 29, 2023 at 2:20 PM

2405527 reported as a Live Voice or Other. Received on September 29, 2023 at 11:15 AM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from , PA

September 22, 2023 at 3:44 PM

240-552-7445 reported as a Live Voice or Other. Received on September 22, 2023 at 2:54 PM.

Anonymous User from , PA

September 22, 2023 at 8:41 AM

240-552-7445 reported as a Live Voice or Other. Received on September 22, 2023 at 8:29 AM.

Anonymous User from , MD

August 24, 2023 at 3:54 PM

240-552-7865 reported as a unwanted call. Received on August 24, 2023 at 12:00 AM.
Call for No Subject Provided

Anonymous User from , MD

August 24, 2023 at 12:15 PM

240-552-7867 reported as a Live Voice or Other. Received on August 24, 2023 at 10:58 AM.
Call for No Subject Provided

Anonymous User from Glen Burnie, Maryland

May 17, 2023 at 4:28 PM

240-552-5926 reported as a Robocall. Received on March 15, 2023 at 1:15 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from , DC

April 20, 2023 at 4:06 PM

240-552-9445 reported as a Robocall. Received on April 2, 2023 at 12:47 AM.

Anonymous User from , MD

January 23, 2023 at 3:55 PM

240-552-7168 reported as a Robocall. Received on January 23, 2023 at 12:47 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Richmond, Texas

December 23, 2022 at 1:24 PM

240-552-5079 reported as a Robocall. Received on December 23, 2022 at 12:05 PM.

Anonymous User from Pacific Grove, CA

September 22, 2022 at 6:33 PM

240-552-6075 reported as a Text Message. Received on September 22, 2022 at 11:11 AM.
Unwanted call for Political Services
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from St Louis, MO

August 10, 2022 at 10:10 PM

240-552-6118 reported as a Prerecorded Voice. Received on August 10, 2022 at 2:45 PM.
Unwanted call for unknown
Contacted via Internet (VOIP)

Anonymous User from Hendrson, NV

February 27, 2022 at 1:27 AM

None reported as a Prerecorded Voice. Received on February 27, 2022 at 5:10 PM.
Unwanted call for Prizes Won Something Services
Caller ID indicated they called from 240-552-2597
Contacted via Internet (VOIP)

Most 'popular' numbers on this prefix:

240-552-0XXX: 240-552-0000 | 240-552-0001 | 240-552-0002 | 240-552-0300 | 240-552-0303 | 240-552-0305 | 240-552-0350 |
240-552-1XXX: 240-552-1100 | 240-552-1111 | 240-552-1121 | 240-552-1122 | 240-552-1123 |
240-552-2XXX: 240-552-2500 | 240-552-2501 | 240-552-2525 | 240-552-2590 | 240-552-2591 | 240-552-2599 | 240-552-2700 | 240-552-2777 | 240-552-2790 | 240-552-2798 | 240-552-2799 |
240-552-4XXX: 240-552-4370 | 240-552-4373 | 240-552-4375 | 240-552-4400 | 240-552-4401 | 240-552-4430 | 240-552-4433 | 240-552-4435 | 240-552-4444 | 240-552-4900 | 240-552-4930 | 240-552-4932 | 240-552-4935 | 240-552-4997 | 240-552-4998 |
240-552-5XXX: 240-552-5000 | 240-552-5001 | 240-552-5002 | 240-552-5070 | 240-552-5071 | 240-552-5077 | 240-552-5500 | 240-552-5540 | 240-552-5544 | 240-552-5545 | 240-552-5550 | 240-552-5555 | 240-552-5900 | 240-552-5920 | 240-552-5922 | 240-552-5923 | 240-552-5997 |
240-552-6XXX: 240-552-6001 | 240-552-6004 | 240-552-6010 | 240-552-6011 | 240-552-6015 | 240-552-6020 | 240-552-6100 | 240-552-6160 | 240-552-6161 | 240-552-6168 |
240-552-7XXX: 240-552-7100 | 240-552-7105 | 240-552-7107 | 240-552-7160 | 240-552-7166 | 240-552-7168 | 240-552-7400 | 240-552-7401 | 240-552-7404 | 240-552-7440 | 240-552-7443 | 240-552-7444 | 240-552-7500 | 240-552-7505 | 240-552-7507 | 240-552-7560 | 240-552-7562 | 240-552-7565 | 240-552-7600 | 240-552-7620 | 240-552-7630 | 240-552-7633 | 240-552-7635 | 240-552-7700 | 240-552-7750 | 240-552-7753 | 240-552-7755 | 240-552-7770 | 240-552-7777 | 240-552-7800 | 240-552-7807 | 240-552-7808 | 240-552-7860 | 240-552-7862 | 240-552-7865 |
240-552-8XXX: 240-552-8100 | 240-552-8121 | 240-552-8122 | 240-552-8125 |
240-552-9XXX: 240-552-9300 | 240-552-9303 | 240-552-9310 | 240-552-9311 | 240-552-9315 | 240-552-9330 |