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240-439

You are reviewing the Area Code (NPA/NXX) report for 240-439. Did you mean to search the SMS short code 240439?

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Phone LookupTop ComplaintsArea CodesNPA-NXXiMessage
Examples: 206-739-5800, 206, 206-739, 48369
Raw Number240439
Basic Format240-439
NPA (Area Code)240
NXX439

Call Routing Data

NPA-NXX-XOCNCompanyRate CenterUse TypeAssign DateCityStateRegionBlock Effective Date
240-439-0XXX6395CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MDFREDERICKAS06/09/2008FREDERICKMDMA08/14/2008
240-439-1XXX6855OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLCFREDERICKAS09/12/2008FREDERICKMDMA10/12/2008
240-439-2XXX9212VERIZON MARYLAND, INC.FREDERICKAS08/15/2008FREDERICKMDMA09/16/2008
240-439-3XXX6395CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MDFREDERICKAS04/04/2011FREDERICKMDMA05/02/2011
240-439-4XXX318JCOMCAST IP PHONE, LLCFREDERICKAS06/04/2010FREDERICKMDMA07/03/2010
240-439-5XXX5562METROPCS, INC.FREDERICKAS07/06/2010FREDERICKMDMA07/16/2010
240-439-6XXX6119LEVEL 3 COMMUNICATIONS, LLC - MDFREDERICKAS04/15/2010FREDERICKMDMA05/09/2010
240-439-7XXX5562METROPCS, INC.FREDERICKAS07/06/2010FREDERICKMDMA09/02/2010
240-439-8XXX6119LEVEL 3 COMMUNICATIONS, LLC - MDFREDERICKAS08/03/2009FREDERICKMDMA08/13/2009
240-439-9XXX6395CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MDFREDERICKAS09/03/2008FREDERICKMDMA10/03/2008
240-439-XXXX6395CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MDFREDERICKAS06/06/2008FREDERICKMD

Business/Government Phones on the 240-439 Prefix

PhoneNameAddress
240-439-4010Madrones American Grill7810 Wormans Mill Road Frederick 21701 US
240-439-4876Sweeties50 Carroll Creek Way Frederick 21701 US
240-439-6095Jersey Mike's Subs5599 Spectrum Drive US

Reports

Anonymous User from Owings Mills, Maryland

January 13, 2026 at 12:32 AM

240-439-5352 reported as a Live Voice or Other. Received on November 24, 2025 at 10:23 AM.

Anonymous User from Puyallup, Washington

June 5, 2025 at 4:46 PM

240-439-0950 reported as a Robocall. Received on June 5, 2025 at 11:29 AM.

Anonymous User from Boonsboro, Maryland

March 25, 2025 at 6:54 PM

240-439-4269 reported as a Robocall. Received on March 21, 2025 at 7:00 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Grand Ledge, Michigan

November 8, 2023 at 9:53 AM

240-439-8128 reported as a Live Voice or Other. Received on November 7, 2023 at 12:00 PM.
Call for Computer & technical support

Anonymous User from Takoma Park, Maryland

January 2, 2023 at 6:12 PM

240-439-9114 reported as a Robocall. Received on January 2, 2023 at 12:00 PM.

Anonymous User from Cockeysville, Maryland

September 25, 2022 at 3:17 PM

240-439-4036 reported as a Live Voice or Other. Received on September 24, 2022 at 11:37 AM.
Call for Dropped call or no message

Anonymous User from , MD

July 1, 2022 at 6:22 PM

240-439-4146 reported as a unwanted call. Received on June 30, 2022 at 3:08 PM.
Call for No Subject Provided

Anonymous User from , MD

June 27, 2022 at 6:56 PM

240-439-7559 reported as a unwanted call. Received on June 27, 2022 at 5:52 PM.
Call for No Subject Provided

Anonymous User from , MD

June 21, 2022 at 9:16 PM

240-439-9336 reported as a unwanted call. Received on June 21, 2022 at 4:36 PM.
Call for No Subject Provided

Anonymous User from Gaithersburg, MD

February 18, 2021 at 4:08 PM

None reported as a Live Voice. Received on February 18, 2021 at 11:05 AM.
Unwanted call for unknown
Caller ID indicated they called from 240-439-5983
Contacted via Wireless (cell phone/other mobile device)

Most 'popular' numbers on this prefix:

240-439-4XXX: 240-439-4000 | 240-439-4010 | 240-439-4011 | 240-439-4015 | 240-439-4040 | 240-439-4062 | 240-439-4100 | 240-439-4111 | 240-439-4140 | 240-439-4141 | 240-439-4145 | 240-439-4400 | 240-439-4410 | 240-439-4411 | 240-439-4415 | 240-439-4440 | 240-439-4444 | 240-439-4600 | 240-439-4607 | 240-439-4609 | 240-439-4610 | 240-439-4611 | 240-439-4612 | 240-439-4800 | 240-439-4807 | 240-439-4870 | 240-439-4875 | 240-439-4877 | 240-439-4888 |
240-439-5XXX: 240-439-5808 | 240-439-5810 | 240-439-5820 | 240-439-5870 | 240-439-5871 | 240-439-5875 |
240-439-6XXX: 240-439-6000 | 240-439-6020 | 240-439-6060 | 240-439-6090 | 240-439-6096 | 240-439-6099 |
240-439-7XXX: 240-439-7500 | 240-439-7505 | 240-439-7507 | 240-439-7550 | 240-439-7555 | 240-439-7557 |
240-439-8XXX: 240-439-8600 | 240-439-8601 | 240-439-8650 | 240-439-8656 |
240-439-9XXX: 240-439-9100 | 240-439-9110 | 240-439-9111 | 240-439-9115 | 240-439-9300 | 240-439-9303 | 240-439-9330 | 240-439-9333 | 240-439-9339 | 240-439-9700 | 240-439-9707 | 240-439-9777 | 240-439-9790 | 240-439-9797 | 240-439-9799 |