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240-478

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Raw Number240478
Basic Format240-478
NPA (Area Code)240
NXX478

Call Routing Data

NPA-NXX-XOCNCompanyRate CenterUse TypeAssign DateCityStateRegionBlock Effective Date
240-478-0XXX6855OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLCWSHNGTNZN3AS12/27/2005WASHINGTON ZONE 03MDMA01/21/2006
240-478-1XXX4036NEW CINGULAR WIRELESS PCS, LLC - DCWSHNGTNZN3AS08/25/2004WASHINGTON ZONE 03MDMA09/23/2004
240-478-2XXX4036NEW CINGULAR WIRELESS PCS, LLC - DCWSHNGTNZN3AS08/25/2004WASHINGTON ZONE 03MDMA09/23/2004
240-478-3XXX4036NEW CINGULAR WIRELESS PCS, LLC - DCWSHNGTNZN3AS08/25/2004WASHINGTON ZONE 03MDMA09/23/2004
240-478-4XXX6855OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLCWSHNGTNZN3AS11/11/2005WASHINGTON ZONE 03MDMA12/10/2005
240-478-5XXX6855OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLCWSHNGTNZN3AS11/23/2005WASHINGTON ZONE 03MDMA12/23/2005
240-478-6XXX6119LEVEL 3 COMMUNICATIONS, LLC - MDWSHNGTNZN3AS12/29/2005WASHINGTON ZONE 03MDMA01/28/2006
240-478-7XXX6395CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MDWSHNGTNZN3AS02/06/2006WASHINGTON ZONE 03MDMA03/04/2006
240-478-8XXX6395CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MDWSHNGTNZN3AS01/05/2006WASHINGTON ZONE 03MDMA02/03/2006
240-478-9XXX6395CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MDWSHNGTNZN3AS01/05/2006WASHINGTON ZONE 03MDMA02/03/2006
240-478-XXXX4036NEW CINGULAR WIRELESS PCS, LLC - DCWSHNGTNZN3AS07/27/2004WASHINGTON ZONE 03MD

Business/Government Phones on the 240-478 Prefix

PhoneNameAddress
240-478-6339Willis Builders, Inc.
240-478-7597NJ Electric Service, LLC

Reports

Anonymous User from , NH

January 8, 2026 at 8:24 PM

240-478-4471 reported as a Robocall. Received on January 8, 2026 at 5:43 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from , MD

August 25, 2025 at 9:34 AM

240478659 reported as a Robocall. Received on August 25, 2025 at 9:28 AM.

Anonymous User from , MD

July 19, 2025 at 8:40 PM

240-478-6226 reported as a Live Voice or Other. Received on July 19, 2025 at 4:23 PM.
Call for Dropped call or no message

Anonymous User from Silverton, Colorado

April 4, 2025 at 4:01 PM

240-478-6877 reported as a Robocall. Received on April 1, 2025 at 8:02 AM.
Call for Dropped call or no message

Anonymous User from , MD

November 26, 2024 at 4:27 PM

240-478-6431 reported as a Live Voice or Other. Received on November 26, 2024 at 3:19 PM.
Call for Dropped call or no message

Anonymous User from Summerville, South Carolina

November 20, 2024 at 12:18 PM

240-478-6469 reported as a Robocall. Received on November 20, 2024 at 12:00 AM.
Call for Medical & prescriptions

Anonymous User from Smithsburg, Maryland

September 9, 2024 at 9:06 AM

240-478-6015 reported as a Live Voice or Other. Received on September 9, 2024 at 9:06 AM.
Call for Dropped call or no message

Anonymous User from Washington, District of Columbia

August 7, 2024 at 6:36 PM

240-478-0417 reported as a Live Voice or Other. Received on August 22, 2022 at 12:00 PM.
Call for Work from home & other ways to make money

Anonymous User from , MD

June 1, 2024 at 8:21 AM

240-478-6349 reported as a Robocall. Received on May 31, 2024 at 6:11 PM.
Call for Dropped call or no message

Anonymous User from Rockville, Maryland

April 29, 2024 at 11:25 AM

240-478-6496 reported as a Live Voice or Other. Received on April 26, 2024 at 3:22 PM.
Call for Dropped call or no message

Anonymous User from Boyds, Maryland

June 29, 2023 at 5:29 PM

240-478-0431 reported as a Live Voice or Other. Received on June 29, 2023 at 1:38 PM.
Call for Dropped call or no message

Anonymous User from Cockeysville, Maryland

December 7, 2022 at 11:56 AM

240-478-2245 reported as a Live Voice or Other. Received on December 7, 2022 at 11:44 AM.

Anonymous User from Astoria, Oregon

November 1, 2022 at 4:03 PM

240-478-1890 reported as a Robocall. Received on November 1, 2022 at 12:50 PM.
Call for Dropped call or no message

Anonymous User from , NE

July 26, 2022 at 3:13 PM

240-478-2774 reported as a Robocall. Received on February 3, 2022 at 12:50 PM.
Call for No Subject Provided

Anonymous User from , MD

June 20, 2022 at 3:35 PM

240-478-1683 reported as a unwanted call. Received on June 20, 2022 at 1:09 PM.
Call for No Subject Provided

Anonymous User from , MD

June 10, 2022 at 2:02 PM

240-478-0370 reported as a unwanted call. Received on June 10, 2022 at 1:42 PM.
Call for No Subject Provided

Anonymous User from , MD

June 7, 2017 at 3:52 PM

240-478-9874 reported as a Prerecorded Voice. Received on June 7, 2017 at 11:39 AM.
Unwanted call for unknown
Contacted via Wireless (cell phone/other mobile device)

Most 'popular' numbers on this prefix:

240-478-0XXX: 240-478-0200 | 240-478-0230 | 240-478-0236 | 240-478-0238 | 240-478-0248 | 240-478-0300 | 240-478-0303 | 240-478-0305 | 240-478-0370 | 240-478-0373 | 240-478-0400 | 240-478-0401 | 240-478-0404 | 240-478-0430 | 240-478-0433 | 240-478-0435 | 240-478-0800 | 240-478-0808 | 240-478-0840 | 240-478-0845 | 240-478-0888 |
240-478-1XXX: 240-478-1212 | 240-478-1234 | 240-478-1262 | 240-478-1280 | 240-478-1283 | 240-478-1288 | 240-478-1600 | 240-478-1608 | 240-478-1647 | 240-478-1680 | 240-478-1683 | 240-478-1688 | 240-478-1800 | 240-478-1820 | 240-478-1822 | 240-478-1824 | 240-478-1887 | 240-478-1888 | 240-478-1970 | 240-478-1977 | 240-478-1978 | 240-478-1993 | 240-478-1997 | 240-478-1998 |
240-478-2XXX: 240-478-2200 | 240-478-2240 | 240-478-2244 | 240-478-2247 | 240-478-2262 | 240-478-2283 | 240-478-2500 | 240-478-2507 | 240-478-2508 | 240-478-2510 | 240-478-2511 | 240-478-2515 | 240-478-2700 | 240-478-2770 | 240-478-2777 | 240-478-2778 | 240-478-2900 | 240-478-2920 | 240-478-2922 | 240-478-2923 | 240-478-2992 | 240-478-2998 |
240-478-3XXX: 240-478-3300 | 240-478-3330 | 240-478-3333 | 240-478-3350 | 240-478-3353 | 240-478-3355 | 240-478-3400 | 240-478-3440 | 240-478-3443 | 240-478-3444 | 240-478-3600 | 240-478-3606 | 240-478-3608 | 240-478-3650 | 240-478-3658 |
240-478-4XXX: 240-478-4000 | 240-478-4040 | 240-478-4062 | 240-478-4070 | 240-478-4077 | 240-478-4078 | 240-478-4900 | 240-478-4930 | 240-478-4932 | 240-478-4935 | 240-478-4997 | 240-478-4998 |
240-478-5XXX: 240-478-5200 | 240-478-5220 | 240-478-5250 | 240-478-5290 | 240-478-5298 | 240-478-5299 | 240-478-5301 | 240-478-5303 | 240-478-5321 | 240-478-5322 | 240-478-5328 | 240-478-5351 | 240-478-5353 | 240-478-5358 | 240-478-5600 | 240-478-5606 | 240-478-5650 | 240-478-5670 | 240-478-5675 | 240-478-5678 | 240-478-5801 | 240-478-5803 | 240-478-5851 | 240-478-5852 | 240-478-5858 | 240-478-5876 |
240-478-6XXX: 240-478-6300 | 240-478-6303 | 240-478-6307 | 240-478-6340 | 240-478-6343 | 240-478-6347 | 240-478-6400 | 240-478-6401 | 240-478-6407 | 240-478-6490 | 240-478-6495 | 240-478-6499 |
240-478-7XXX: 240-478-7500 | 240-478-7507 | 240-478-7590 | 240-478-7595 | 240-478-7599 | 240-478-7600 | 240-478-7650 | 240-478-7654 | 240-478-7656 | 240-478-7657 | 240-478-7666 |
240-478-8XXX: 240-478-8200 | 240-478-8207 | 240-478-8250 | 240-478-8270 | 240-478-8272 | 240-478-8278 | 240-478-8900 | 240-478-8907 | 240-478-8950 | 240-478-8955 | 240-478-8959 | 240-478-8998 |
240-478-9XXX: 240-478-9707 | 240-478-9710 | 240-478-9711 | 240-478-9717 | 240-478-9730 | 240-478-9777 | 240-478-9800 | 240-478-9807 | 240-478-9808 | 240-478-9830 | 240-478-9833 | 240-478-9838 |